Automobile shock absorber piston rod multi-parameter automatic detection device

Abstract

The utility model discloses a kind of automobile shock absorber piston rod multi-parameter automatic detection device, comprising: workbench;Workpiece support seat, it is set along the length direction of workbench;Length detection cylinder, it is set in one side of workpiece support seat;Length detection positioning rod, it is set in one end of workpiece support seat;One end of length detection positioning rod is fixedly connected with the piston rod end of length detection cylinder, other end is in contact with the piston end of automobile shock absorber piston rod;Chromium plating area detection cylinder, it is set in other side of workpiece support seat;Two chromium plating area detection probes, one end is fixedly connected with the piston rod end of chromium plating area detection cylinder;Outer diameter detection cylinder, it is set with length detection cylinder same side;Outer diameter detection probe, one end is fixedly connected with the piston rod end of outer diameter detection cylinder;Wherein, the other end of outer diameter detection probe and two chromium plating area detection probes are in contact with the outer wall of automobile shock absorber piston rod.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts testing technology, and specifically relates to an automatic multi-parameter testing device for automotive shock absorber piston rods. Background Technology

[0002] As a critical component, the piston rod of an automotive shock absorber, with its geometric dimensions including overall length, outer diameter, and the length of the chrome-plated area, directly affects the assembly quality and service life of the shock absorber. Currently, automated inspection technologies for the outer diameter and overall length of the piston rod are relatively mature and common in industrial production. However, accurate and rapid detection of the length of the chrome-plated area remains a significant technical challenge. Due to the thickness of the chrome plating layer, the physical height difference at the boundary with the non-chrome-plated area is only at the micrometer level, making it difficult for traditional inspection methods to effectively identify. If the chrome-plated area is too long, the plating will severely affect the welding strength during subsequent welding of the limiting seat, leading to incomplete welds or weld failure. If the chrome-plated area is too short, the non-chrome-plated area of ​​the piston rod will be exposed to a corrosive environment during operation, causing early corrosion and shortening the shock absorber's lifespan.

[0003] Therefore, there is an urgent need in this field for a specialized device that can be integrated into automated production lines and simultaneously perform efficient and accurate detection of piston rod length, outer diameter, and chrome plating length, in order to solve the aforementioned long-standing quality control challenges. Utility Model Content

[0004] The purpose of this invention is to provide an automatic multi-parameter detection device for automotive shock absorber piston rods, which can simultaneously detect the length, outer diameter, and chrome-plated area length of the piston rod, effectively avoiding welding failure or corrosion caused by errors in the detection of the chrome-plated area length.

[0005] The technical solution provided by this utility model is as follows:

[0006] An automatic multi-parameter detection device for automotive shock absorber piston rods includes:

[0007] The workbench has a rectangular frame structure.

[0008] A workpiece support base is provided along the length of the worktable and is fixedly installed on the upper surface of the worktable;

[0009] A length detection cylinder is disposed on one side of the workpiece support along the length direction of the worktable and is fixedly installed on the upper surface of the worktable.

[0010] A length detection positioning rod is disposed at one end of the workpiece support along the length direction of the worktable; one end of the length detection positioning rod is fixedly connected to the piston rod end of the length detection cylinder, and the other end is in contact with the piston end of the piston rod of the automobile shock absorber.

[0011] A chrome plating area detection cylinder is disposed on the other side of the workpiece support along the length of the worktable and is fixedly installed on the upper surface of the worktable.

[0012] Two chrome plating area detection probes are arranged along the width of the worktable; one end of each of the two chrome plating area detection probes is fixedly connected to the piston rod end of the chrome plating area detection cylinder.

[0013] An outer diameter detection cylinder is disposed on the same side as the length detection cylinder and is fixedly mounted on the upper surface of the worktable perpendicular to the worktable;

[0014] An outer diameter detection probe is disposed perpendicularly to the worktable above the workpiece support; one end of the outer diameter detection probe is fixedly connected to the piston rod end of the outer diameter detection cylinder.

[0015] The other end of the outer diameter detection probe and the two chrome-plated area detection probes are in contact with the outer wall of the piston rod of the automobile shock absorber.

[0016] Preferably, the worktable includes:

[0017] The tabletop is a rectangular panel.

[0018] The frame is a rectangular frame support structure; the upper end of the frame is fixedly connected to the lower surface of the table panel.

[0019] Preferably, it also includes:

[0020] A touch screen panel is disposed on the same side as the length detection cylinder and is fixedly mounted on the upper surface of the platform panel; the length detection cylinder, the chrome plating area detection cylinder, and the outer diameter detection cylinder are all electrically connected to the touch screen panel;

[0021] A client positioning seat is disposed at the other end of the workpiece support seat and fixedly installed on the upper surface of the table panel; the client positioning seat contacts the client of the automobile shock absorber piston rod.

[0022] Preferably, it also includes:

[0023] Two V-shaped support blocks are respectively set at both ends of the workpiece support seat to support the piston rod of the automobile shock absorber.

[0024] Preferably, one end of the length detection positioning rod is fixedly connected to the piston rod end of the length detection cylinder via a first connecting plate; one end of the outer diameter detection probe is fixedly connected to the piston rod end of the outer diameter detection cylinder via a second connecting plate; and one end of each of the two chrome plating area detection probes is fixedly connected to the piston rod end of the chrome plating area detection cylinder via a connecting seat.

[0025] Preferably, the length detection cylinder is fixedly mounted on the upper surface of the table panel via a length detection cylinder support; the chrome plating area detection cylinder is fixedly mounted on the upper surface of the table panel via a chrome plating area detection cylinder support; and the outer diameter detection cylinder is fixedly mounted on the upper surface of the table panel via an outer diameter detection cylinder support.

[0026] Preferably, it also includes:

[0027] Two length detection guide rails are respectively arranged on both sides of the workpiece support along the length direction of the worktable and are fixedly installed on the upper surface of the table panel;

[0028] The length detection positioning slider has two ends that slide in cooperation with the two length detection guide rails; the length detection positioning slider is fixedly connected to the first connecting plate;

[0029] A chrome plating area detection guide rail is provided along the length of the workbench, on the same side as the chrome plating area detection cylinder, and is fixedly installed on the upper surface of the workbench panel.

[0030] A chrome-plated area detection and positioning slider slides in conjunction with the chrome-plated area detection guide rail; the chrome-plated area detection and positioning slider is fixedly connected to the connecting seat.

[0031] Preferably, the length detection cylinder, the chrome plating area detection cylinder, and the outer diameter detection cylinder are all stroke-readable cylinders.

[0032] Preferably, the two chrome-plated area detection probes are high-precision inductive sensing probes; the outer diameter detection probe is an inductive outer diameter detection probe.

[0033] The beneficial effects of this utility model are: the multi-parameter automatic detection device for automotive shock absorber piston rods provided by this utility model can simultaneously detect the length, outer diameter and chrome plating length of the piston rod, effectively avoiding welding failure or corrosion caused by errors in the detection of the chrome plating length. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the automatic multi-parameter detection device for automobile shock absorber piston rods described in this utility model.

[0035] Figure 2 This is a front view of the automatic multi-parameter detection device for automobile shock absorber piston rods described in this utility model.

[0036] Figure 3 This is a side view of the automatic multi-parameter detection device for automobile shock absorber piston rods described in this utility model.

[0037] Figure 4 This is a top view of the automatic multi-parameter detection device for automobile shock absorber piston rods described in this utility model.

[0038] Figure 5 This is an enlarged view of the device on the platform of the automatic multi-parameter detection device for automobile shock absorber piston rods described in this utility model.

[0039] Figure 6 This is a schematic diagram of the V-shaped support block structure described in this utility model.

[0040] Figure 7 This is a schematic diagram of the piston rod structure of the automotive shock absorber to be tested according to this utility model.

[0041] Reference numerals: Workbench 110, Tabletop 111, Frame 112, Guide mounting groove 113, Workpiece support 121, V-shaped support block 122, Length detection cylinder 131, Length detection positioning rod 132, Length detection guide rail 133, Length detection positioning slider 134, First connecting plate 135, Length detection cylinder support 136, Chrome plating area detection cylinder 141, First chrome plating area detection probe 142, Second chrome plating area detection probe 143, Chrome plating... The system includes: a detection guide rail 144, a chrome-plated area detection positioning slider 145, a connecting seat 146, a chrome-plated area detection cylinder support 147, an outer diameter detection cylinder 151, an outer diameter detection probe 152, a second connecting plate 153, an outer diameter detection cylinder support 154, a client positioning seat 160, a touch screen panel 170, a piston rod of the car shock absorber to be tested 180, a client end of the piston rod of the car shock absorber to be tested 181, and a piston end of the piston rod of the car shock absorber to be tested 182. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0043] like Figure 1-7 As shown, this utility model provides an automatic multi-parameter detection device for automotive shock absorber piston rods, comprising: a worktable 110, which is a rectangular frame structure; the worktable 110 is an integral load-bearing base, the worktable 110 including: a table panel 111, which is a rectangular plate; a guide mounting groove 113, which is a U-shaped through groove; the guide mounting groove 113 is arranged in the middle of the table panel 111 along the length direction of the table panel 111, and is used to adapt to the position adjustment of the workpiece support seat 121 and the client positioning seat 160; a frame 112, which is a rectangular frame support structure; the frame 112 is arranged below the table panel 111, and the upper end of the frame 112 is fixedly connected to the lower surface of the table panel 111.

[0044] A workpiece support mechanism is used to precisely support the piston rod to be tested. The workpiece support mechanism includes: a workpiece support seat 121, which is arranged along the length direction of the worktable 110 and fixedly installed on the upper surface of the table panel 111; a first limiting block is provided at each of the two ends below the workpiece support seat 121, and the first limiting block is arranged in the guide mounting groove 113. The workpiece support seat 121 can slide and adjust its position along the guide mounting groove 113 to adapt to automobile shock absorber piston rods of different lengths; two V-shaped support blocks 122 are respectively arranged at both ends of the workpiece support seat 121 to support the automobile shock absorber piston rod, and the V-shaped structure adapts to automobile shock absorber piston rods of different diameters.

[0045] A length detection mechanism is provided for detecting the total length of the piston rod of an automotive shock absorber. The length detection mechanism includes: a length detection cylinder 131, which is disposed on one side of the workpiece support 121 along the length direction of the worktable 110 and fixedly mounted on the upper surface of the table panel 111 via an L-shaped length detection cylinder support 136; and a length detection positioning rod 132, which is disposed at one end of the workpiece support 121 along the length direction of the worktable 110. One end of the length detection positioning rod 132 is fixedly connected to the piston rod end of the length detection cylinder 131 via a first connecting plate 135, and the other end is connected to the piston end of the automotive shock absorber piston rod. The length detection positioning rod 132 moves left and right along the length direction of the worktable 110 along the piston rod of the length detection cylinder 131; two length detection guide rails 133 are respectively arranged on both sides of the workpiece support 121 along the length direction of the worktable 110 and are fixedly installed on the upper surface of the table panel 111; the length detection positioning slider 134 has its two ends respectively sliding in cooperation with the two length detection guide rails 133; the length detection positioning slider 134 is fixedly connected to the first connecting plate 135 to ensure that the length detection positioning rod 132 moves smoothly along the two length detection guide rails 133 and improves the positioning accuracy.

[0046] A chrome plating area detection mechanism detects the boundary position and length of chrome plating areas based on the principle of differential inductance. The mechanism includes: a chrome plating area detection cylinder 141, which is positioned along the length of the worktable 110 on the other side of the workpiece support 121 and fixedly mounted on the upper surface of the worktable panel 111 via an L-shaped chrome plating area detection cylinder support 147; the axis of the chrome plating area detection cylinder 141 is parallel to the axis of the length detection cylinder 131; two chrome plating area detection probes, both positioned along the width of the worktable 110; one end of each probe is fixedly connected to the piston rod end of the chrome plating area detection cylinder 141 via a connecting seat 146, and the other end contacts the outer wall of the piston rod of an automotive shock absorber; the two probes move left and right along the length of the worktable 110 with the piston rod of the chrome plating area detection cylinder 141; the two chrome plating area detection probes... The chromium area detection probes are a first chromium plating area detection probe 142 and a second chromium plating area detection probe 143. The distance between the two chromium plating area detection probes is a fixed value, and the distance between the two chromium plating area detection probes is slightly larger than the expected transition width between the chromium plating area and the non-chromium plating area of ​​the piston rod 180 of the automobile shock absorber to be tested. The two chromium plating area detection probes are high-precision inductive sensors. The chromium plating area detection guide rail 144 is set along the length of the worktable 110, on the same side as the chromium plating area detection cylinder 141, and is fixedly installed on the upper surface of the table panel 111. The chromium plating area detection positioning slider 145 slides in cooperation with the chromium plating area detection guide rail 144. The chromium plating area detection positioning slider 145 is fixedly connected to the connecting seat 146 to ensure that the two chromium plating area detection probes move synchronously and smoothly along the chromium plating area detection guide rail 144, avoiding detection errors caused by movement deviation.

[0047] An outer diameter detection mechanism is provided for detecting the outer diameter of a piston rod of an automotive shock absorber. The outer diameter detection mechanism includes: an outer diameter detection cylinder 151, which is perpendicular to the worktable 110 and positioned on the same side as the length detection cylinder 131, and is fixedly mounted on the upper surface of the worktable panel 111 via an outer diameter detection cylinder support 154; an outer diameter detection probe 152, which is perpendicular to the worktable 110 and positioned above the workpiece support 121; one end of the outer diameter detection probe 152 is fixedly connected to the piston rod end of the outer diameter detection cylinder 151 via a second connecting plate 153, and the other end contacts the highest point of the outer wall of the automotive shock absorber piston rod; the outer diameter detection probe 152 moves up and down perpendicularly to the worktable 110 along with the piston rod of the outer diameter detection cylinder 151; the outer diameter detection probe 152 is an inductive outer diameter detection probe.

[0048] The length detection cylinder 131, the chrome plating area detection cylinder 141, and the outer diameter detection cylinder 151 are all stroke-readable cylinders.

[0049] A client positioning seat 160 is disposed at the other end of the workpiece support seat 121 and fixedly installed on the upper surface of the platform 111. A second limiting block is provided at the bottom of the client positioning seat 160, which is disposed in the guide mounting groove 113. The client positioning seat 160 can be adjusted along the guide mounting groove 113 to ensure that the client positioning seat 160 and the workpiece support seat 121 remain aligned. The client positioning seat 160 contacts the client end of the automotive shock absorber piston rod. The client positioning seat 160, the length detection positioning rod 132, and the automotive shock absorber piston rod 180 to be tested are coaxially arranged.

[0050] A touch screen panel 170 is disposed on the same side as the length detection cylinder 131 and is fixedly mounted on the upper surface of the table panel 111 by a touch screen panel bracket. The touch screen panel includes a display screen and a PLC controller. The length detection cylinder 131, the chrome plating area detection cylinder 141 and the outer diameter detection cylinder 151 are all electrically connected to the PLC controller. The PLC controller feeds back the received data to the display screen.

[0051] All connection methods mentioned in this utility model adopt bolt or welding connection.

[0052] The operation procedure of the automatic multi-parameter detection device for automotive shock absorber piston rods provided by this utility model is as follows:

[0053] Step 1: Place the piston rod 180 of the car shock absorber to be tested on the two V-shaped support blocks 122, and make the client positioning seat 160 contact the client 181 of the piston rod of the car shock absorber to be tested.

[0054] Step 2: Activate the automatic multi-parameter detection device for the automotive shock absorber piston rod: The length detection cylinder 131 drives the length detection positioning rod 132 to move along the length direction of the worktable 110 towards the piston rod 180 of the automotive shock absorber to be tested, and contacts the piston end 182 of the piston rod; The outer diameter detection cylinder 151 drives the outer diameter detection probe 152 to move downward perpendicularly to the worktable 110 and contact the highest point of the outer wall of the piston rod 180 of the automotive shock absorber to be tested. The two chrome-plated area detection probes contact the outer wall of the piston rod 180 of the shock absorber to be tested, and move along the length of the worktable 110 with the piston rod end of the chrome-plated area detection cylinder 141. By calculating the difference in the reading values ​​of the two chrome-plated area detection probes, the boundary between the chrome-plated area and the non-chrome-plated area of ​​the piston rod 180 of the shock absorber to be tested is detected. The second chrome-plated area detection probe 143 stops moving when it reaches the boundary between the chrome-plated area and the non-chrome-plated area of ​​the piston rod 180 of the shock absorber to be tested.

[0055] Wherein, if the difference in detection signals between the two chrome-plated area detection probes is approximately zero or close to a reference value, and the absolute values ​​of the detection signals from both probes are within their respective preset ranges, then it indicates that the first chrome-plated area detection probe 142 is completely located within the chrome-plated area of ​​the piston rod 180 of the shock absorber to be tested, and the second chrome-plated area detection probe 143 is completely located within the non-chrome-plated area of ​​the piston rod 180 of the shock absorber to be tested, with the boundary between the chrome-plated and non-chrome-plated areas of the piston rod 180 of the shock absorber to be tested located between the two chrome-plated area detection probes; when the difference in detection signals between the two chrome-plated area detection probes is approximately zero, and the absolute value of the detection signal from the first chrome-plated area detection probe 142 is within a preset range, and the boundary between the chrome-plated and non-chrome-plated areas of the piston rod 180 of the shock absorber to be tested is located between the two chrome-plated area detection probes; When the absolute value of the detection signal of probe 143 exceeds the preset range, it indicates that both chrome-plated area detection probes are located in the chrome-plated area of ​​the piston rod 180 of the shock absorber to be tested. When the difference between the detection signals of the two chrome-plated area detection probes is approximately zero, and the absolute value of the detection signal of the first chrome-plated area detection probe 142 is lower than the preset range, while the absolute value of the detection signal of the second chrome-plated area detection probe 143 is within the preset range, it indicates that both chrome-plated area detection probes are located in the non-chrome-plated area of ​​the piston rod 180 of the shock absorber to be tested. By measuring the difference between the detection signals of the two chrome-plated area detection probes and the change in the absolute value of each chrome-plated area detection probe, the boundary between the chrome-plated and non-chrome-plated areas of the piston rod 180 of the shock absorber to be tested is detected.

[0056] Step 3: Read the stroke value of the length detection cylinder 131, and calculate the total length of the piston rod 180 of the car shock absorber to be tested. The calculation formula is as follows:

[0057] L=Δl+l m

[0058] In the formula, L is the total length of the piston rod of the vehicle shock absorber to be tested; Δl is the length data compensation value; l m The measured value is the length of the cylinder stroke for length detection;

[0059] The stroke value of the outer diameter detection cylinder 151 is read, and the outer diameter of the piston rod 180 of the automobile shock absorber to be tested is obtained through calculation. The calculation formula is as follows:

[0060] φd=Δd+d m

[0061] In the formula, φd is the outer diameter of the piston rod of the vehicle shock absorber to be tested; Δd is the compensation value for the outer diameter data; d m This is the measured value of the cylinder stroke for outer diameter detection;

[0062] The stroke value of the chrome-plated area detection cylinder 141 is read, and the length of the chrome-plated area of ​​the piston rod 180 of the automobile shock absorber to be tested is obtained through calculation. The calculation formula is as follows:

[0063] L3 = L - L1 - L2

[0064] Where, L2=Δl f +l fm

[0065] In the formula, L3 is the length of the chrome-plated area of ​​the piston rod of the shock absorber to be tested; L1 is the length of the end face; L2 is the length of the non-chrome-plated area of ​​the piston rod of the shock absorber to be tested; Δl f This is the compensation value for the length of the non-chrome-plated area; fm The measured value is for the cylinder stroke in the chrome-plated area.

[0066] Step 4: The touch screen panel 170 synchronously displays the test data of the total length, outer diameter and chrome-plated area length of the piston rod 180 of the car shock absorber to be tested, and automatically determines whether the piston rod 180 of the car shock absorber to be tested is a qualified or unqualified product according to the preset qualified range.

[0067] Before testing the total length, outer diameter, and chrome plating length of the piston rod of the automotive shock absorber to be tested, the strokes of the length testing cylinder 131, the outer diameter testing cylinder 151, and the chrome plating length testing cylinder 141 need to be calibrated using a standard automotive shock absorber piston rod whose length, outer diameter, and chrome plating length meet the requirements.

[0068] Step 1: Place the standard automotive shock absorber piston rod with known length, known outer diameter, and known chrome plating area on the two V-shaped support blocks 122, and make the client positioning seat 160 contact the client of the standard automotive shock absorber piston rod.

[0069] Step 2: Activate the automatic multi-parameter detection device for the automotive shock absorber piston rod: The length detection cylinder 131 drives the length detection positioning rod 132 to move along the length direction of the worktable 110 towards the standard automotive shock absorber piston rod and contact the piston end of the standard automotive shock absorber piston rod; the outer diameter detection cylinder 151 drives the outer diameter detection probe 152 to move downward perpendicularly to the worktable 110 and contact the highest point of the outer wall of the standard automotive shock absorber piston rod; the two chrome-plated area detection probes contact the outer wall of the standard automotive shock absorber piston rod and move along the length direction of the worktable 110 with the piston rod end of the chrome-plated area detection cylinder 141.

[0070] Step 3: Read the stroke of the length detection cylinder 131 at this time, as the measured value of the stroke of the length detection cylinder 131 during calibration; obtain the length data compensation value by combining the known length of the standard automotive shock absorber piston rod and the measured value of the stroke of the length detection cylinder 131 during calibration, using the following formula:

[0071] Ls =Δl+l0

[0072] In the formula, L s The known length of the piston rod of a standard automotive shock absorber is given, and l0 is the measured value of the cylinder stroke during calibration.

[0073] The stroke of the outer diameter detection cylinder 151 at this time is read as the measured value of the stroke of the outer diameter detection cylinder 151 during calibration; using the known outer diameter of the standard automotive shock absorber piston rod and the measured value of the stroke of the outer diameter detection cylinder 151 during calibration, the outer diameter data compensation value is obtained, and the relationship formula is:

[0074] φd s =Δd+d0

[0075] In the formula, φd s d0 is the known outer diameter of the piston rod of a standard automotive shock absorber; d0 is the measured value of the cylinder stroke during calibration.

[0076] The two chrome-plated area detection probes contact the outer wall of the piston rod of a standard automotive shock absorber and move along the length of the worktable 110 with the piston rod end of the chrome-plated area detection cylinder 141. When the first chrome-plated area detection probe 142 is completely located in the chrome-plated area of ​​the piston rod of the standard automotive shock absorber, and the second chrome-plated area detection probe 143 is completely located in the non-chrome-plated area of ​​the piston rod of the standard automotive shock absorber, and the detection signals of the two chrome-plated area detection probes are both within their respective preset ranges, the detection signals of the two chrome-plated area detection probes are subtracted to obtain the detection signal difference; the detection signal difference is then "reset to zero" or set as a reference value. The second chrome-plated area detection probe 143 stops moving when it reaches the boundary between the chrome-plated and non-chrome-plated areas of the standard automotive shock absorber piston rod. The stroke of the chrome-plated area detection cylinder 141 at this point is read as the measured value of the stroke of the chrome-plated area detection cylinder 141 during calibration. The non-chrome-plated area length compensation value is obtained by combining the known length of the non-chrome-plated area of ​​the standard automotive shock absorber piston rod with the measured value of the stroke of the chrome-plated area detection cylinder 141 during calibration. The relationship formula is:

[0077] L f =Δl f +l f0

[0078] In the formula, L f The known non-chrome-plated length of the piston rod of a standard automotive shock absorber; f0 The measured value of the cylinder stroke in the chrome-plated area is used for calibration.

[0079] This utility model provides an automatic multi-parameter detection device for automotive shock absorber piston rods, capable of simultaneously detecting the length, outer diameter, and chrome-plated area length of the piston rod. It replaces traditional manual step-by-step measurement or single-parameter detection equipment, improving detection efficiency and adapting to the batch detection needs of automated production lines. Employing a readable cylinder, a high-precision inductive probe, and linear guide rails, combined with a data compensation algorithm, it enhances detection accuracy and effectively avoids welding failures or corrosion caused by errors in chrome-plated area length detection. By adjusting the position of the workpiece support and the client positioning seat through the guide mounting groove, and in conjunction with a V-shaped support block, it can accommodate piston rods of different specifications for automotive shock absorbers, demonstrating strong versatility.

[0080] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A multi-parameter automatic detection device for a piston rod of an automobile shock absorber, characterized in that, include: The workbench has a rectangular frame structure. A workpiece support base is provided along the length of the worktable and is fixedly installed on the upper surface of the worktable; A length detection cylinder is disposed on one side of the workpiece support along the length direction of the worktable and is fixedly installed on the upper surface of the worktable. A length detection positioning rod is disposed at one end of the workpiece support along the length direction of the worktable; one end of the length detection positioning rod is fixedly connected to the piston rod end of the length detection cylinder, and the other end is in contact with the piston end of the piston rod of the automobile shock absorber. A chrome plating area detection cylinder is disposed on the other side of the workpiece support along the length of the worktable and is fixedly installed on the upper surface of the worktable. Two chrome plating area detection probes are arranged along the width direction of the worktable; one end of each of the two chrome plating area detection probes is fixedly connected to the piston rod end of the chrome plating area detection cylinder. An outer diameter detection cylinder is disposed on the same side as the length detection cylinder and is fixedly mounted on the upper surface of the worktable perpendicular to the worktable; An outer diameter detection probe is disposed perpendicularly to the worktable above the workpiece support; one end of the outer diameter detection probe is fixedly connected to the piston rod end of the outer diameter detection cylinder. The other end of the outer diameter detection probe and the two chrome-plated area detection probes are in contact with the outer wall of the piston rod of the automobile shock absorber.

2. The automobile shock absorber piston rod multi-parameter automatic detection device according to claim 1, characterized in that, The workbench includes: The tabletop is a rectangular panel. The frame is a rectangular frame support structure; the upper end of the frame is fixedly connected to the lower surface of the table panel.

3. The automobile shock absorber piston rod multi-parameter automatic detection device according to claim 2, characterized in that, Also includes: A touch screen panel is disposed on the same side as the length detection cylinder and is fixedly mounted on the upper surface of the platform panel; The length detection cylinder, the chrome plating area detection cylinder, and the outer diameter detection cylinder are all electrically connected to the touch screen panel; A client positioning seat is disposed at the other end of the workpiece support seat and fixedly installed on the upper surface of the table panel; the client positioning seat contacts the client of the automobile shock absorber piston rod.

4. The automobile shock absorber piston rod multi-parameter automatic detection device according to claim 1, characterized in that, Also includes: Two V-shaped support blocks are respectively set at both ends of the workpiece support seat to support the piston rod of the automobile shock absorber.

5. The automobile shock absorber piston rod multi-parameter automatic detection device according to claim 2, characterized in that, One end of the length detection positioning rod is fixedly connected to the piston rod end of the length detection cylinder via a first connecting plate; one end of the outer diameter detection probe is fixedly connected to the piston rod end of the outer diameter detection cylinder via a second connecting plate; one end of each of the two chrome plating area detection probes is fixedly connected to the piston rod end of the chrome plating area detection cylinder via a connecting seat.

6. The automobile shock absorber piston rod multi-parameter automatic detection device according to claim 5, characterized in that, The length detection cylinder is fixedly mounted on the upper surface of the table panel via a length detection cylinder support; the chrome plating area detection cylinder is fixedly mounted on the upper surface of the table panel via a chrome plating area detection cylinder support; and the outer diameter detection cylinder is fixedly mounted on the upper surface of the table panel via an outer diameter detection cylinder support.

7. The automobile shock absorber piston rod multi-parameter automatic detection device according to claim 6, characterized in that, Also includes: Two length detection guide rails are respectively arranged on both sides of the workpiece support along the length direction of the worktable and are fixedly installed on the upper surface of the table panel; The length detection positioning slider has two ends that slide in cooperation with the two length detection guide rails; the length detection positioning slider is fixedly connected to the first connecting plate; A chrome plating area detection guide rail is provided along the length of the workbench, on the same side as the chrome plating area detection cylinder, and is fixedly installed on the upper surface of the workbench panel. A chrome-plated area detection and positioning slider slides in conjunction with the chrome-plated area detection guide rail; the chrome-plated area detection and positioning slider is fixedly connected to the connecting seat.

8. The automobile shock absorber piston rod multi-parameter automatic detection device according to claim 1, characterized in that, The length detection cylinder, the chrome plating area detection cylinder, and the outer diameter detection cylinder are all stroke-readable cylinders.

9. The automobile shock absorber piston rod multi-parameter automatic detection device according to claim 1, characterized in that, The two chrome-plated area detection probes are high-precision inductive sensors; the outer diameter detection probe is an inductive outer diameter detection probe.

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