Shock absorber sleeve positioning boss forming device

Abstract

The utility model discloses a shock absorber sleeve positioning convex molding device, including work table, the one end fixed protruding forming mould of work table, is equipped with the top rod in another end, the protruding forming mould includes core rod, a plurality of protruding forming blocks and outer limiting ring, the hollow structure is to the front end of core rod, and the circumference on the front end of core rod evenly is equipped with a plurality of protruding forming block's opening, the protruding forming block outside is equipped with the lug, and the inside is equipped with the inclined plane, and the inclined plane of a plurality of protruding forming blocks inside constitutes the conical hole, the outer limiting ring is sleeved in the outside of core rod, and the outer limiting ring is opposite with the position of protruding forming block, the conical head of top rod can insert into the conical hole, and a plurality of protruding forming blocks are opened out. The utility model discloses a top rod conical head inserts into the conical hole that a plurality of protruding forming blocks constitute, can disposablely open out a plurality of protruding forming blocks outward, and the molding processing of a plurality of positioning protrusions on sleeve is completed simultaneously, and the processing flow is simplified.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber processing technology, and in particular to a shock absorber sleeve positioning protrusion forming device. Background Technology

[0002] Shock absorbers are used to suppress the oscillations caused by the rebound of springs after absorbing shocks, as well as impacts from the road surface. They are widely used in automobiles to accelerate the attenuation of vibrations in the chassis and body, thereby improving the ride comfort of the vehicle. When driving over uneven roads, although the shock-absorbing springs can filter out road vibrations, the springs themselves will still have reciprocating motion. Shock absorbers are used to suppress this spring bounce.

[0003] Currently, some shock absorbers have spring discs fixed to the outer wall of the sleeve by welding, while others have spring discs limited by positioning protrusions on the outer wall of the sleeve. These positioning protrusions on the shock absorber sleeve are machined by a punch press. Multiple positioning protrusions require step-by-step machining by the punch press; that is, after machining one positioning protrusion, the sleeve is rotated a certain angle, and the punch press then machines the next positioning protrusion. This makes the entire machining process very cumbersome and inefficient. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a device for forming positioning protrusions on a shock absorber sleeve, which can complete the forming of multiple positioning protrusions on the sleeve in one operation, thereby improving processing efficiency.

[0005] Therefore, the technical solution of this utility model is: a shock absorber sleeve positioning protrusion forming device, including a worktable, a protrusion forming mold fixed at one end of the worktable, and a push rod at the other end, as well as an ejector cylinder that drives the push rod to move toward the protrusion forming mold; the protrusion forming mold includes a mandrel, multiple protrusion forming blocks and an outer limiting ring, the front end of the mandrel is hollow, and multiple openings for accommodating the protrusion forming blocks are evenly opened on the circumference of the front end of the mandrel; the outer side of the protrusion forming block is provided with a protrusion, and the inner side is provided with an inclined surface, and the inclined surfaces on the inner sides of the multiple protrusion forming blocks form a conical hole; the outer limiting ring is fitted on the outer side of the mandrel, and the space between the two is the sleeve placement position, and the outer limiting ring is positioned opposite to the protrusion forming blocks; the push rod has a conical head, which can be inserted into the conical hole formed by the multiple protrusion forming blocks to open the multiple protrusion forming blocks.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: two rings of limiting springs are fitted on the outer side of the opening of the mandrel, and the limiting springs are clamped on the outer side of the protruding molding block.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the cylinder rod of the ejector cylinder is connected to a movable plate, and the movable plate has guide holes at both ends and is fitted onto the guide rod; the ejector rod is mounted on the movable plate and is coaxially arranged with the mandrel and the outer limit ring.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the workbench is provided with a fixed plate and a limiting plate, and the end of the mandrel is fixed on the fixed plate; an outer limiting ring is fixed in the middle of the limiting plate, and the front end of the mandrel passes through the outer limiting ring.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the outer limiting ring is provided with a horn-shaped guide opening on the side facing the top rod.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the tail of the mandrel is provided with a protruding limiting step.

[0011] Initially, the raised forming block is tightened under the action of the limiting spring, and the protrusions of the raised forming block are not protruding. At this time, it is convenient to insert the sleeve through the flared guide port, fit it on the mandrel, and abut against the limiting step at the tail of the mandrel. At this time, the front end of the sleeve is located outside the raised forming block and inside the outer limiting ring. Then, the ejector cylinder is vented, and the cylinder rod of the ejector cylinder is ejected, driving the ejector rod forward. The conical head of the ejector rod is inserted into the conical hole formed by multiple raised forming blocks, which pushes the multiple raised forming blocks outward, so that the sleeve is ejected by the protrusions on the raised forming block to form a positioning protrusion. At the same time, the outer limiting ring can limit the height of the protrusion. After processing, the ejector cylinder is vented in the reverse direction, the ejector rod is pulled out from the mandrel, and the raised forming block is reset under the action of the limiting spring. Finally, the sleeve with the positioning protrusion processed can be removed.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By inserting the conical head of the push rod into the conical hole formed by the protruding forming blocks, multiple protruding forming blocks can be pushed outward at one time, and the forming process of multiple positioning protrusions on the sleeve can be completed simultaneously. This eliminates the need for multiple rotations of the sleeve and repeated processing operations, significantly simplifying the processing flow.

[0013] Multiple protruding forming blocks are evenly distributed at the opening of the mandrel, and the push rod, mandrel, and outer limiting ring are coaxially set, which can ensure that the multiple positioning protrusions formed are evenly distributed on the circumference of the sleeve with high positional accuracy. At the same time, the outer limiting ring can precisely limit the opening range of the protruding forming blocks, thereby effectively controlling the height of the positioning protrusions, ensuring the consistency of the dimensions of each protrusion, and improving the stability of processing quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the top rod of this utility model; Figure 3 This is a schematic diagram of the protrusion forming mold of this utility model; Figure 4This is a schematic diagram of the structure of the protruding molding block of this utility model; Figure 5 This is a structural cross-sectional view of the protrusion forming mold of this utility model; Figure 6 This is a diagram illustrating the protrusion forming process of this utility model; Figure 7 for Figure 6 A magnified view of a portion of the image; Figure 8 This is a schematic diagram of the shock absorber.

[0015] The following are marked in the figure: workbench 1, protrusion forming mold 2, mandrel 21, protrusion forming block 22, outer limit ring 23, limit step 24, limit spring 25, protrusion 26, inclined surface 27, horn-shaped guide port 28, fixed plate 3, limit plate 4, ejector rod 51, ejector cylinder 52, moving plate 53, guide rod 54, conical head 55, sleeve 6, positioning protrusion 61. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0018] See the attached drawings. The shock absorber sleeve positioning protrusion forming device described in this embodiment includes a worktable 1. One end of the worktable 1 is fixed with a protrusion forming mold 2, a fixing plate 3, and a limiting plate 4. The protrusion forming mold 2 includes a mandrel 21, multiple protrusion forming blocks 22, and an outer limiting ring 23. The end of the mandrel 21 is fixed to the fixing plate 3, and the tail of the mandrel 21 is provided with a protruding limiting step 24, which can limit the length of the sleeve 6. The front end of the mandrel 21 is a hollow structure, and multiple openings for accommodating the protrusion forming blocks 22 are evenly opened on the circumference of the front end of the mandrel 21. Two limiting springs 25 are fitted on the outside of the openings of the mandrel 21. The limiting springs 25 are clamped on the outside of the protrusion forming blocks 22. The outside of both the protrusion forming blocks 22 and the mandrel 21 is provided with grooves to accommodate the limiting springs 25. The limiting springs 25 can prevent the protrusion forming blocks 22 from falling out of the openings and can also reset the protrusion forming blocks 22 that have been stretched open.

[0019] The raised forming block 22 has a protrusion 26 on its outer side and an inclined surface 27 on its inner side. The inclined surfaces 27 on the inner side of multiple raised forming blocks 22 form a conical hole. The limiting plate 4 has an outer limiting ring 23 fixed in the middle. The front end of the mandrel 21 passes through the outer limiting ring 23. The space between the two is used to place the sleeve 6. The outer limiting ring 23 has a flared guide port 28 facing the top rod to guide the sleeve 6 to be fitted. The outer limiting ring 23 is positioned opposite to the raised forming block 22 and is located outside the protrusion 26 on the raised forming block 22. It can limit the height of the positioning protrusion 61 on the sleeve 6.

[0020] The other end of the worktable 1 is provided with a push rod 51 and an ejector cylinder 52 that drives the push rod 51 to move toward the protruding forming mold 2. The ejector cylinder 52 is mounted on the worktable 1, and the cylinder rod of the ejector cylinder 52 is connected to a moving plate 53. The moving plate 53 has guide holes at both ends and is fitted onto a guide rod 54. The push rod 51 is mounted on the moving plate 53 and is coaxially arranged with the mandrel 21 and the outer limiting ring 23. The push rod 51 has a conical head 55. The ejector cylinder 52 can drive the push rod 51 to move toward the protruding forming mold 2, so that the conical head 55 of the push rod 51 is inserted into the conical hole formed by multiple protruding forming blocks 22. The conical head 55 cooperates with the conical hole to open up the multiple protruding forming blocks 22. At this time, the limiting spring 25 is in a stretched state.

[0021] The machining steps for the positioning protrusion on the sleeve are as follows: According to the specifications of sleeve 6, select a suitable protrusion forming mold 2. In the initial state, the protrusion forming block 22 is tightened under the action of the limit spring 25, and the protrusion 26 of the protrusion forming block 22 does not protrude. Insert the sleeve 6 into the flared guide port 28, fit it onto the mandrel 21, and push it until the end of the sleeve 6 abuts against the limiting step 24 at the tail of the mandrel 21. At this time, the front end of the sleeve 6 is located outside the protruding forming block 22 and inside the outer limiting ring 23. When the ejector cylinder 52 is ventilated, the cylinder rod of the ejector cylinder 52 drives the ejector rod 51 to move forward. The conical head 55 of the ejector rod is inserted into the conical hole formed by multiple protruding forming blocks 22, which pushes the multiple protruding forming blocks 22 outward. The protrusions 26 on the protruding forming blocks 22 press against the sleeve 6 and eject the positioning protrusion 61. At the same time, the external limiting ring 23 can limit the height of the protrusion. After processing, the ejector cylinder 52 is vented in reverse, the ejector rod 51 is pulled out from the mandrel 21, the protruding forming block 22 is reset under the action of the limit spring 25, and finally, the processed sleeve 6 can be removed.

[0022] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A shock absorber sleeve positioning protrusion forming device, characterized in that: The device includes a worktable, one end of which is fixed with a protrusion forming mold, and the other end is equipped with a push rod, as well as an ejector cylinder that drives the push rod to move toward the protrusion forming mold. The protrusion forming mold includes a mandrel, multiple protrusion forming blocks, and an outer limiting ring. The front end of the mandrel is hollow, and multiple openings for accommodating the protrusion forming blocks are evenly distributed on the circumference of the front end of the mandrel. The outer side of each protrusion forming block has a protrusion, and the inner side has an inclined surface. The inclined surfaces on the inner sides of the multiple protrusion forming blocks form a conical hole. The outer limiting ring is fitted onto the outer side of the mandrel, with a sleeve placement position between them, and the outer limiting ring is positioned opposite to the protrusion forming blocks. The push rod has a conical head that can be inserted into the conical hole formed by the multiple protrusion forming blocks to open up the multiple protrusion forming blocks.

2. The shock absorber sleeve positioning protrusion forming device as described in claim 1, characterized in that: Two retaining springs are fitted around the opening of the mandrel, and the retaining springs are clamped around the outside of the protruding molding block.

3. The shock absorber sleeve positioning protrusion forming device as described in claim 1, characterized in that: The cylinder rod of the ejector cylinder is connected to a movable plate, and the movable plate has guide holes at both ends and is fitted onto the guide rod; the ejector rod is mounted on the movable plate and is coaxially arranged with the mandrel and the outer limit ring.

4. The shock absorber sleeve positioning protrusion forming device as described in claim 1, characterized in that: The workbench is provided with a fixed plate and a limiting plate, and the end of the mandrel is fixed on the fixed plate; an outer limiting ring is fixed in the middle of the limiting plate, and the front end of the mandrel passes through the outer limiting ring.

5. The shock absorber sleeve positioning protrusion forming device as described in claim 1, characterized in that: The outer limiting ring has a flared guide opening on the side facing the top rod.

6. The shock absorber sleeve positioning protrusion forming device as described in claim 1, characterized in that: The tail of the mandrel is provided with a protruding limiting step.

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