Positioning device for self-weight clamping tray of air spring damper

Abstract

The invention provides an air spring shock absorber self-weight clamping tray positioning device which comprises a base, a traction block, a clamping block, a clamping block, a fixing sleeve, a base and a spiral compression spring, the base, the traction block, the clamping block, the clamping block, the fixing sleeve, the base and the spiral compression spring are sequentially connected from top to bottom, the traction block is fixed to the base, and the clamping block is fixed to the spiral compression spring. The traction block is fixed on the base, the clamping block is fixed on the traction block, the clamping block is fixed on the clamping block, the fixing sleeve wraps the clamping block, and the base is connected in the base in a sleeved mode. According to the shock absorber clamping device, the shock absorber is clamped through the dead weight of the shock absorber, meanwhile, the shock absorber is centralized through the coordination effect of the base and the clamping block, and on the premise that it is guaranteed that the appearance of a product is not damaged, automatic clamping can be achieved, and automatic loosening can be achieved when the product is taken out.

Description

Technical Field

[0001] The present invention relates to the technical field of shock absorber installation, and particularly relates to a self-weight clamping tray positioning device for an air spring shock absorber. Background Art

[0002] On an air spring automatic assembly line, during the assembly process of the air spring shock absorber strut assembly, the feeding of the shock absorber is unmanned. Generally, a manipulator is used to grab and transfer the shock absorber ( Figure 1 ) to the fixture of the tray tooling. To prevent the shock absorber from rotating during the transfer process to the next workstation due to factors such as the vibration of the conveyor chain and the impact of the tray, or tilting due to a certain gap between the tray tooling fixture and the shock absorber, which may result in the inability to achieve automatic assembly subsequently. Therefore, when the manipulator places the shock absorber on the tray, the tray should be able to immediately clamp and straighten the shock absorber.

[0003] Currently, trays that rely on the self-weight of the shock absorber to clamp the shock absorber usually cannot ensure that the direction of the shock absorber is straightened when clamping a shock absorber with a large weight due to the limitations of the thickness and volume of the tray itself; if the thickness or volume of the tray is increased, the working efficiency of the automatic assembly line will be reduced. Therefore, a tray is needed that not only clamps the shock absorber relying on the self-weight of the shock absorber but also can automatically straighten the shock absorber. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and a self-weight clamping tray positioning device for an air spring shock absorber is proposed.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A self-weight clamping tray positioning device for an air spring shock absorber, comprising: A base, which is of an overall cylindrical structure. Two platforms are provided at the lower ends on both sides of the base, and light holes A are drilled in the platforms; A traction block, with a light hole a drilled in its lower part for connection with the platform, a light hole B drilled in its upper part, and a limiting rib provided on its side; A clamping block, which includes clamping block 1 and clamping block 2. The clamping block is of an overall concave structure. Oblique holes with a fixed height are provided on the left and right sides of the clamping block. The two clamping blocks are fixed on the traction block through pins and light hole B; A clamping piece, with holes drilled on its side for connection with the clamping block, and the inside of the clamping piece is contoured to the outer cylinder of the shock absorber; A fixed sleeve, which includes an upper cover and a bottom sleeve, and the fixed sleeve is of a square hollow structure; The base, with internal slots for mating with the base and the traction block, has a recess at the bottom for the base to sink into, holes drilled on the upper surface for connecting the fixing sleeve, and holes drilled at the lower part for connecting the upper tray on the automatic line. The helical compression spring is fixed on the base and passes through the fixing hole to support the lower end of the traction block.

[0006] Preferably, the depth inside the base is 30 - 20 mm, a fixing hole is provided at the center of the platform, and the fixing hole cooperates with the helical compression spring.

[0007] Preferably, the left and right sides of the clamping block are L-shaped rib plates. The outer sides of the left and right sides of the clamping block 1 are flat plates of the L-shaped rib plates, and the left and right sides of the clamping block 2 are vertical plates of the rib plates. An inclined hole is provided at one end of the vertical plate away from the clamping block, and the angle of the inclined hole is 45°. The clamping block 1 and the clamping block 2 are spliced left and right along the direction of the L-shaped rib plate. A pin is used to sequentially pass through the inclined hole and the light hole B of the clamping block 1 and the inclined hole of the clamping block 2 to fix the clamping block 1 and the clamping block 2 at the upper end of the traction block, and relative displacement can occur between the clamping block and the traction block. A fixing groove is provided at the center of the bottom edge of the clamping block, and the fixing groove cooperates with the limiting concave rib.

[0008] Preferably, the upper cover and the bottom sleeve are fixedly connected by screws. An opening is provided at the center of the fixing sleeve, and the shape of the opening cooperates with the structure of the clamping block. A through hole is provided in the fixing sleeve along the left - right direction, and the through hole cooperates with the side surface of the clamping block.

[0009] Preferably, the structure of the clamping block is a square structure, the upper surface of the clamping block is arc-shaped, fixing holes are provided at both ends of the arc, the clamping block cooperates with the clamping block, and the two clamping blocks are respectively fixed on the inner wall of the clamping block through countersunk head bolts and the fixing holes, and a gap is left between the two clamping blocks.

[0010] Preferably, the materials of the base, the traction block, the clamping block, the fixing block and the base are 45 steel, the material of the clamping block is polyurethane material, and the surfaces of the base, the traction block, the clamping block, the fixing block and the base are subjected to phosphating and blackening operations.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention completely relies on the self - weight of the shock absorber to make the clamping block automatically clamp the shock absorber, and the fixture can automatically loosen when the shock absorber is removed.

[0012] The method proposed by the present invention: When the shock absorber falls into the fixture, the clamping block tightens inward, so that the clamping block clamps the shock absorber. At this time, the base descends, and the position of the clamping block remains unchanged, thereby extending the length of clamping the shock absorber and further increasing the stability of clamping the shock absorber. Brief Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the use of a self - weight clamping tray positioning device for an air spring shock absorber according to the present invention; Figure 2 It is a schematic structural diagram of a self - weight clamping tray positioning device for an air spring shock absorber according to the present invention Figure 3 It is a schematic connection structure diagram of the base and the traction block of a self - weight clamping tray positioning device for an air spring shock absorber according to the present invention; Figure 4 It is a schematic structural diagram of the clamping block of a self - weight clamping tray positioning device for an air spring shock absorber according to the present invention; Figure 5 It is a schematic connection diagram of the clamping block and the base of a self - weight clamping tray positioning device for an air spring shock absorber according to the present invention; Figure 6 It is a schematic assembly diagram of the clip and the clamping block of a self - weight clamping tray positioning device for an air spring shock absorber according to the present invention; Figure 7 It is a schematic structural diagram of the fixed sleeve of a self - weight clamping tray positioning device for an air spring shock absorber according to the present invention; Figure 8 It is a schematic structural diagram of the base of a self - weight clamping tray positioning device for an air spring shock absorber according to the present invention; Figure 9 It is a schematic structural diagram of the positioning device according to the present invention; Reference Numeral Description: 1 - base; 101 - platform; 102 - light hole A; 103 - fixing hole; 2 - traction block; 201 - light hole a; 202 - limiting concave rib; 203 - light hole B; 3 - clamping block; 301 - clamping block 1; 302 - clamping block 2; 303 - inclined hole; 304 - L - shaped rib; 4 - clip; 401 - fixing hole; 5 - fixed sleeve; 501 - upper cover; 502 - bottom sleeve; 503 - opening; 504 - through hole; 6 - base; 601 - groove; 7 - helical compression spring. Detailed Description of the Preferred Embodiment

[0014] To further understand the purpose, structure, features and functions of the present invention, the following is a detailed description in conjunction with the embodiments.

[0015] As Figure 1-8 shown, a self - weight clamping tray positioning device for an air spring shock absorber includes Base 1, which is of a cylindrical structure as a whole. There are two platforms 101 at the lower ends of both sides of the base 1, and light holes A103 are drilled in the platforms. It is designed to be cylindrical to support the lower end of the shock absorber. The height of the base only wraps 25 mm of the lower end of the shock absorber to ensure that it does not affect the assembly of the subsequent workstations of the air spring. Two platforms are designed at the lower ends on both sides of the cylinder, and light holes are drilled to connect the traction block.

[0016] Traction block 2, with a light hole a drilled in its lower part for connection with the platform, a light hole B drilled in its upper part, and a limiting rib provided on the side of the traction block. A limiting rib is added to the side of the traction block to cooperate with the positioning groove on the fixed sleeve, so that when the shock absorber is placed on the base, it is ensured that the shock absorber slides up and down in the vertical direction.

[0017] Clamping block 3, which includes clamping block 1 and clamping block 2. The clamping block 3 is of a concave structure as a whole. There are inclined holes 303 with a fixed height on the left and right sides of the clamping block 3. The two clamping blocks 3 are fixed on the traction block 2 through pins and light holes B203. Clamping block 4, with holes drilled on its side for connection with the clamping block 3, and the inside of the clamping block 4 is shaped like the outer cylinder of the shock absorber. Fixed sleeve 5, which includes an upper cover 501 and a bottom sleeve 502. The fixed sleeve 5 is of a square hollow structure. It is mainly used to cooperate with the base to fix the clamping block and allow the clamping block to move in a given direction.

[0018] Base 6, with grooves inside to cooperate with the base 1 and the traction block 2. A groove 601 for the base to sink is reserved at the bottom of the base 6. Holes are drilled on the upper surface of the base 6 to connect the fixed sleeve 5, and holes are drilled at the lower part of the base 6 to connect the tray on the automatic line. Helical compression spring 7, which is fixed on the base 6. Two helical compression springs are installed under the drilled base to support the lower end of the traction block. When the shock absorber is removed, the compression spring bounces up the traction block to release the clamping block.

[0019] Preferably, the depth inside the base 1 is 30 - 20 mm. A fixing hole 103 is provided at the center of the platform 101, and the fixing hole 103 cooperates with the helical compression spring 7.

[0020] Preferably, the left and right sides of the clamping block 3 are L-shaped rib plates 304. The outer sides of the left and right sides of the clamping block 1301 are the flat plates of the L-shaped rib plates 304. The left and right sides of the clamping block 2302 are the vertical plates of the L-shaped rib plates 304. An inclined hole 303 is provided at one end of the vertical plate away from the clamping block 3. The angle of the inclined hole 303 is 45°. The clamping block 1301 and the clamping block 2302 are spliced left and right along the direction of the L-shaped rib plate 304. A pin is used to sequentially pass through the inclined hole 303 and the optical hole B103 of the clamping block 1301 and the inclined hole 303 of the clamping block 2, so as to fix the clamping block 1301 and the clamping block 2302 on the upper end of the traction block 2. A fixing groove is provided at the center of the bottom edge of the clamping block 3, and the fixing groove is matched with the limiting concave rib (202). Oblique grooves with a fixed height of 45 degrees are opened on the left and right sides of the clamping block. A fixing sleeve and a base are used to ensure that when the shock absorber is lowered, the clamping block cannot move in the up and down and left and right directions. When the shock absorber is lowered, the base drives the traction block and the pin to move downward. The pin gives a downward pressure to the 45-degree oblique groove on the clamping block. However, due to being fixed up and down, the clamping block cannot move downward and is converted into a radially inward pulling force. Thus, when the shock absorber is lowered, the clamping block clamps inward.

[0021] Preferably, the upper cover 501 and the bottom sleeve 502 are fixedly connected by screws. An opening 503 is provided at the center of the fixing sleeve 5. The shape of the opening 503 is matched with the structure of the clamping block 3. The fixing sleeve 5 is provided with a through hole 504 in the left and right direction, and the through hole 504 is matched with the side surface of the clamping block 3.

[0022] Preferably, the structure of the clamping block 4 is a square structure. The upper surface of the clamping block 4 is arc-shaped. Fixing holes 401 are provided at both ends of the arc. The clamping block 4 is matched with the clamping block 3. The two clamping blocks 4 are respectively fixed on the inner wall of the clamping block 3 through countersunk head bolts and the fixing holes 401. A gap is left between the two clamping blocks 4. Ensure that when the clamping block clamps the shock absorber, the clamping block contacts the shock absorber to protect the surface of the shock absorber from being scratched. The inner part is made to be in the shape of the outer cylinder of the shock absorber, so as to perfectly clamp the shock absorber.

[0023] Preferably, the materials of the base 1, the traction block 2, the clamping block 3, the fixing sleeve and the base 6 are 45 steel. The material of the clamping block 4 is polyurethane material. The surfaces of the base 1, the traction block 2, the clamping block 3, the fixing sleeve 5 and the base 6 are subjected to phosphating and blackening operations.

[0024] In use, the lower end of the shock absorber enters into the base, so that the base 1 starts to descend within the pedestal 6, further driving the traction block 2 and the pin to descend, and the helical compression spring is compressed; at this time, the clamping block is affected by the traction block and thus has a tendency to move downward. The pin exerts a downward pressure on the 45-degree inclined groove on the clamping block. However, since it is fixed up and down, the clamping block cannot move downward and is converted into a radially inward pulling force. Thus, when the shock absorber is lowered, the clamping block clamps inward. At this time, the clamping block 1 and the clamping block 2 squeeze inward, thereby driving the clamping block to move inward until the clamping block firmly clamps the shock absorber. When the shock absorber is taken out, the helical compression spring exerts an elastic force on the traction block to assist the shock absorber to disengage from the base.

[0025] The present invention has been described by the above related embodiments. However, the above embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and refinements made without departing from the spirit and scope of the present invention fall within the scope of patent protection of the present invention.

Claims

1. An air spring shock absorber self-weight clamping tray positioning device, characterized in that, Comprising: A base (1), which is of an overall cylindrical structure. A number of platforms (101) are provided at the lower ends on both sides of the base. Light holes A (102) are drilled in the platforms (101). A traction block (2), in which a light hole a (201) is drilled at the lower part for connection with the platform (101). A light hole B (203) is drilled at the upper part of the traction block (2). A limiting rib (202) is provided on the side of the traction block. A clamping block (3), which includes a clamping block 1 (301) and a clamping block 2 (302). The clamping block (3) is of an overall concave structure. Oblique holes (303) with a fixed height are provided on the left and right sides of the clamping block (3). The clamping block 1 (301) and the clamping block 2 (302) are fixed to the traction block (2) through pins and the light hole B (203). A clip block (4), whose side is perforated for connection with the clamping block (3). The interior of the clip block (4) is in the shape of a copy of the outer cylinder of a shock absorber. A fixing sleeve (5), which includes an upper cover (501) and a bottom sleeve (502). The fixing sleeve (5) is of a square hollow structure. A base (6), whose interior is grooved to cooperate with the base (1) and the traction block (2). A groove (601) for the base (1) to sink is reserved at the bottom of the base (6). A hole is drilled on the upper surface of the base (6) for connection with the fixing sleeve (5). A hole is drilled at the lower part of the base (6) for connection with the tray on the automatic line. A helical compression spring (7), which is fixed on the base (6).

2. The self-weight clamping tray positioning device of the air spring shock absorber according to claim 1, wherein: The depth inside the base (1) is 30 - 20 mm. A fixing hole (103) is provided at the center of the platform (101). The fixing hole (103) cooperates with the helical compression spring (7).

3. The self-weight clamping tray positioning device of the air spring shock absorber according to claim 1, characterized in that: The left and right sides of the clamping block (3) are L-shaped rib plates (304). The outer sides of the left and right sides of the clamping block 1 (301) are flat plates of the L-shaped rib plates (304). The left and right sides of the clamping block 2 (302) are vertical plates of the L-shaped rib plates. Oblique holes (303) are provided at one ends of the vertical plates far from the clamping block (302). The angle of the oblique holes (303) is 45°. The clamping block 1 (301) and the clamping block 2 (302) are spliced left and right along the direction of the L-shaped rib plates (304). Pins are used to sequentially pass through the oblique holes (303) of the clamping block 1 (301), the light hole B (203), and the oblique holes (303) of the clamping block 2 (302) to fix the clamping block 1 (301) and the clamping block 2 (302) at the upper end of the traction block (2). And relative displacement can occur between the clamping block (3) and the traction block (2) to which it belongs. A fixing groove is provided at the center of the bottom edge of the clamping block (3). The fixing groove cooperates with the limiting concave rib (202).

4. The self-weight clamping tray positioning device for an air spring shock absorber according to claim 1, characterized in that: The upper cover (501) and the bottom sleeve (502) are fixedly connected by screws. An opening (503) is provided at the center of the fixing sleeve (5). The shape of the opening (503) matches the structure of the clamping block (3). A through hole (504) is provided in the fixing sleeve (5) along the left and right directions. The through hole (504) matches the side of the clamping block (3).

5. The self-weight clamping tray positioning device of the air spring shock absorber according to claim 1, wherein: The structure of the clamping block (4) is a square structure. The upper surface of the clamping block (4) is arc-shaped. Fixing holes (401) are provided at both ends of the arc shape. The clamping block (4) cooperates with the clamping piece (3). The two clamping blocks (3) are respectively fixed on the inner wall of the clamping piece (3) through countersunk head bolts and the fixing holes (401). A gap is left between the two clamping blocks (3).

6. The self-weight clamping tray positioning device of the air spring shock absorber according to claim 1, wherein: The materials of the base (1), the traction block (2), the clamping piece (3), the fixing sleeve (5) and the base (6) are 45 steel. The material of the clamping block (4) is polyurethane material. Phosphating and blackening operations are carried out on the surfaces of the base (1), the traction block (2), the clamping piece (3), the fixing sleeve (5) and the base (6).

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