Strengthening treatment device for surface roughness of piston rod of shock absorber
By designing staggered lifting hangers and a fully automated transfer device, the problem of insufficient contact between the piston rod and the hook was solved, achieving uniform treatment of the piston rod surface during the salt bath process and improving the product qualification rate.
Patent Information
- Application Number
- CN202423261849.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Traditional salt bath fixtures and auxiliary components make it difficult to perform salt bath treatment on the contact area between the piston rod and the fixture frame, affecting the pass rate of product surface roughness testing.
Design a device for enhancing the surface roughness of a shock absorber piston rod, comprising a cleaning tank, a soaking tank, a drying chamber, and a moving mechanism. The device achieves fully automated transfer and lifting of the piston rod through staggered lifting hangers, avoiding insufficient reaction at the contact point between the piston rod and the hook.
This improved the product qualification rate, ensured uniform surface treatment of the piston rod during the salt bath process, and increased the pass rate of surface roughness testing.
Smart Images
Figure CN223780335U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of piston rod technology, specifically to a device for strengthening the surface roughness of a shock absorber piston rod. Background Technology
[0002] QPQ salt bath composite treatment technology was invented by a German company in the 1970s. After decades of continuous development and improvement, its application scope has become increasingly wide. Therefore, it is considered a huge advancement in the field of metal surface strengthening technology abroad and is called a new metallurgical method. QPQ salt bath composite treatment technology has also been widely promoted and applied in China, especially in automobiles, motorcycles, shaft products, electronic parts, textile machinery, machine tools, electrical switches, and molds, where the effect is particularly outstanding.
[0003] Traditional salt bath fixtures simply place the piston rod inside the fixture frame, making it difficult for the contact area between the piston rod and the fixture frame to undergo salt bath treatment. This can easily affect the pass rate of the product during subsequent surface roughness testing. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a device for enhancing the surface roughness of shock absorber piston rods through full coverage of salt bath treatment.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a device for strengthening the surface roughness of a shock absorber piston rod, comprising a cleaning tank, a soaking tank, a drying oven, and a moving mechanism. The moving mechanism is mounted on the cleaning tank, soaking tank, and drying oven arranged in sequence. The soaking tank contains a salt solution. The moving mechanism comprises several support frames, which are arranged in combination and equipped with guide rail mounting plates. Double-row guide rails are vertically mounted on the guide rail mounting plates. A lead screw is provided in the middle of the double-row guide rails, and a lead screw is sleeved with a lead screw nut. A telescopic rod mounting plate is fixedly connected to the lead screw nut. Sliding blocks are fixedly connected to both ends of the telescopic rod mounting plate, and the sliding blocks slide on the double-row guide rails. An electric telescopic rod is vertically fixed to a telescopic rod mounting plate, and a lifting platform is vertically fixed to the electric telescopic rod. An alternating lifting device is installed at the bottom of the lifting platform, and a piston rod is installed inside the alternating lifting device. The alternating lifting device includes a device mounting plate, and a first electric cylinder and a second electric cylinder are vertically fixed to the device mounting plate. A first hanging plate is fixed to the bottom of the first electric cylinder, and a second hanging plate is fixed to the bottom of the second electric cylinder. Several first hooks are vertically fixed to the first hanging plate at equal intervals, and several second hooks are vertically fixed to the second hanging plate at equal intervals. The first hooks and second hooks are staggered and alternately lift the piston rod.
[0006] Preferably, the first electric cylinder and the second electric cylinder are arranged in parallel.
[0007] Preferably, the first electric cylinder is provided with first guide posts on both sides, the top of the first guide post is fixedly connected to the mounting plate, and the bottom of the first guide post is slidably sleeved on the first mounting plate.
[0008] Preferably, the second electric cylinder is provided with second guide posts on both sides, the top of the second guide post is fixedly connected to the mounting plate, and the bottom of the second guide post is slidably sleeved on the second mounting plate.
[0009] Preferably, both the first hook and the second hook are provided with multiple layers of hook nodes, and the hook nodes of each layer are arranged on the same plane.
[0010] Preferably, the mounting plate and the lifting platform are connected by bolts through side fixing plates on both sides of the lifting platform.
[0011] Preferably, the end of the lead screw is equipped with a drive motor and a coupling connecting the drive motor and the lead screw.
[0012] Compared with the prior art, this utility model has the following advantages: This utility model realizes the lateral horizontal displacement of the staggered lifting hanger through a moving mechanism, and realizes the vertical displacement of the staggered lifting hanger through an electric telescopic rod. The cooperation between the electric telescopic rod and the moving mechanism completes the fully automated transfer of the staggered lifting hanger from the cleaning tank to the soaking tank and then to the drying box; the first hook and the second hook in the staggered lifting hanger alternately lift the piston rod, so that the contact surface between the piston rod and the hook changes alternately, avoiding the problem of insufficient reaction of the contact part between the piston rod and the hook during the salt bath process, and improving the product qualification rate. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is an isometric drawing of the staggered lifting fixture in this utility model.
[0015] Among them, 10-moving mechanism, 11-cleaning pool, 12-soaking pool, 13-drying box, 14-salt solution, 15-guide rail mounting plate, 16-electric telescopic rod, 17-guide rail, 18-lifting platform, 19-slider, 20-telescopic rod mounting plate, 21-side fixing plate, 22-interlaced lifting hanger, 23-hanger mounting plate, 24-first electric cylinder, 25-second electric cylinder, 26-first guide column, 27-second guide column, 28-first hanging plate, 29-second hanging plate, 30-first hook, 31-second hook, 32-hook node, 33-piston rod, 34-support frame. Detailed Implementation
[0016] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.
[0017] like Figures 1 to 2 The shock absorber piston rod surface roughness enhancement device shown includes a cleaning tank 11, an immersion tank 12, a drying chamber 13, and a moving mechanism 10. The moving mechanism 10 is mounted on the cleaning tank 11, immersion tank 12, and drying chamber 13 arranged in sequence. The immersion tank 12 contains a salt solution 14. The moving mechanism includes several support frames 34, which are arranged in combination and mounted with guide rail mounting plates 15. Double-row guide rails 17 are mounted vertically downward on the guide rail mounting plates 15. A lead screw is provided in the middle of the double-row guide rails 17. The end of the lead screw is equipped with a drive motor and a coupling connecting the drive motor and the lead screw. A lead screw nut is sleeved on the lead screw. A telescopic rod mounting plate 20 is provided to fix the lead screw nut. Slider blocks 19 are fixed to both ends of the telescopic rod mounting plate 20. The sliders 19 slide on the double-row guide rails 17. An electric telescopic rod 16 is vertically fixed to a mounting plate 20. A lifting platform 18 is vertically fixed to the electric telescopic rod 16. An alternating lifting hanger 22 is installed at the bottom of the lifting platform 18. A piston rod 33 is installed inside the alternating lifting hanger 22. The alternating lifting hanger includes a hanger mounting plate 23. A first electric cylinder 24 and a second electric cylinder 25 are vertically fixed to the mounting plate 23. A first hanging plate 28 is fixed to the bottom of the first electric cylinder 24. A second hanging plate 29 is fixed to the bottom of the second electric cylinder 25. A number of first hooks 30 are vertically fixed to the first hanging plate 28 at equal intervals. A number of second hooks 31 are vertically fixed to the second hanging plate 29 at equal intervals. The first hooks 30 and the second hooks 31 are staggered and alternately lift the piston rod 33.
[0018] Furthermore, the first electric cylinder 24 and the second electric cylinder 25 are arranged in parallel. The first electric cylinder 24 is provided with first guide posts 26 on both sides. The top of the first guide post 26 is fixed to the mounting plate 23, and the bottom of the first guide post 26 is slidably sleeved on the first hanging plate 28. The second electric cylinder 25 is provided with second guide posts 27 on both sides. The top of the second guide post 27 is fixed to the mounting plate 23, and the bottom of the second guide post 27 is slidably sleeved on the second hanging plate 29. The guide posts are used for guiding and limiting to ensure that the piston rod 33 will not deviate during the lifting and lowering process.
[0019] Furthermore, both the first hook 30 and the second hook 31 are provided with three layers of hook nodes 32, and each layer of hook nodes 32 is arranged on the same plane. By setting the hook nodes 32, the first hook 30 and the second hook 31 can support more piston rods 33, which greatly increases work efficiency.
[0020] Furthermore, the mounting plate 23 and the lifting platform 18 are bolted together by side fixing plates 21 on both sides of the lifting platform 18. Different staggered lifting mounts 22 can be designed according to piston rods 33 of different sizes, and can be replaced by detachable bolt connection between the lifting platform 18 and the mounting plate 23.
[0021] The working process and principle of this utility model are as follows: The drive motor is activated, which drives the lead screw to rotate. The lead screw drives the lead nut to move, and then the staggered lifting hanger 22 moves laterally. When it moves sequentially to the cleaning tank 11, the soaking tank 12, and the drying box 13, the electric telescopic rod 16 is activated and moves the staggered lifting hanger 22 downward until the piston rod 33 in the staggered lifting hanger 22 is completely submerged in the equipment of the current process. The first electric cylinder 24 and the second electric cylinder 25 are activated alternately, so that the first hook 30 and the second hook 31 are raised and lowered alternately. When the first hook 30 is raised and the second hook 31 is lowered, the first hook 30 lifts the piston rod 33. At this time, the contact surface between the second hook 31 and the piston rod 33 can be exposed for corresponding cleaning, salt bath, or drying. Conversely, when the second hook 31 is raised and the first hook 30 is lowered, the second hook 31 lifts the piston rod 33. At this time, the contact surface between the first hook 30 and the piston rod 33 can be exposed for corresponding cleaning, salt bath, or drying.
[0022] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).
[0023] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.
[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A device for strengthening the surface roughness of a shock absorber piston rod, comprising a cleaning tank, a soaking tank, a drying oven, and a moving mechanism, wherein the moving mechanism is mounted on the cleaning tank, the soaking tank, and the drying oven arranged in sequence, and the soaking tank contains a salt solution, characterized in that: The shifting mechanism includes several support frames, which are arranged in combination and equipped with guide rail mounting plates. Double-row guide rails are vertically mounted on the guide rail mounting plates, with a lead screw in the middle of the double-row guide rails. A lead screw is sleeved with a lead screw nut, and a telescopic rod mounting plate is fixed to the lead screw nut. Slider blocks are fixed to both ends of the telescopic rod mounting plate, sliding on the double-row guide rails. An electric telescopic rod is vertically fixed to the telescopic rod mounting plate, and a lifting platform is vertically fixed to the electric telescopic rod. An alternating lifting hanger is installed at the bottom of the lifting platform, and a piston rod is installed inside the alternating lifting hanger. The alternating lifting hanger includes a hanger mounting plate, with a first electric cylinder and a second electric cylinder vertically fixed to the hanger mounting plate. A first hanging plate is fixed to the bottom of the first electric cylinder, and a second hanging plate is fixed to the bottom of the second electric cylinder. Several equidistant first hooks are vertically mounted on the first hanging plate, and several equidistant second hooks are vertically mounted on the second hanging plate. The first and second hooks are staggered and alternately lift the piston rod.
2. The device for strengthening the surface roughness of the shock absorber piston rod according to claim 1, characterized in that: The first electric cylinder and the second electric cylinder are arranged in parallel.
3. The device for strengthening the surface roughness of the shock absorber piston rod according to claim 2, characterized in that: The first electric cylinder has first guide posts on both sides, the top of the first guide post is fixed to the mounting plate, and the bottom of the first guide post is slidably sleeved on the first mounting plate.
4. The device for strengthening the surface roughness of the shock absorber piston rod according to claim 2, characterized in that: The second electric cylinder is provided with second guide posts on both sides. The top of the second guide post is fixed to the mounting plate, and the bottom of the second guide post is slidably sleeved on the second mounting plate.
5. The device for strengthening the surface roughness of the shock absorber piston rod according to claim 1, characterized in that: Both the first and second hooks have multiple layers of hook nodes, and the hook nodes of each layer are arranged on the same plane.
6. The device for strengthening the surface roughness of the shock absorber piston rod according to claim 1, characterized in that: The mounting plate and the lifting platform are connected by bolts to the side fixing plates on both sides of the lifting platform.
7. The device for strengthening the surface roughness of the shock absorber piston rod according to claim 1, characterized in that: The lead screw is equipped with a drive motor and a coupling connecting the drive motor and the lead screw.