Sleeve in-place and trepanning depth detection equipment
By combining a laser rangefinder sensor and a reed switch for sleeve positioning and opening depth detection, the complexity and high cost of existing sleeve positioning and inner hole depth detection equipment are solved, achieving efficient and low-cost simultaneous detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI RONGCHENG AUTOMOTIVE EQUIP TECH CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-05
AI Technical Summary
In current vehicle manufacturing, two separate sets of equipment are required to check whether the sleeve is in place and to detect the inner hole depth, resulting in complex equipment, high cost and low efficiency.
A casing positioning and opening depth detection device is adopted, which combines a laser rangefinder and a reed switch. Through the collaborative operation of a multi-axis robot, the casing positioning and inner hole depth can be detected simultaneously. The device has a compact structure and low cost.
It enables simultaneous detection of sleeve placement and inner hole depth, improving work efficiency and reducing equipment complexity and cost.
Smart Images
Figure CN224202399U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle testing equipment technology, and in particular to a sleeve positioning and opening depth testing device. Background Technology
[0002] In the automotive manufacturing industry and other fields, multi-axis robots controlled by PLCs or host computers (hereinafter collectively referred to as control systems) are widely used in various production processes. During vehicle production, it involves inserting sleeves into specific locations on relevant components (such as the front steering shaft), followed by welding. Since the sleeve is lower than the corresponding internal height, the control system and the multi-axis robot's robotic arm need to move sensors to the appropriate position. Once the sleeve is detected as properly installed, a signal is sent to the control system, which then controls the multi-axis robot's robotic arm to perform welding operations on the sleeve using welding equipment. Additionally, vehicle production also involves depth detection of the inner holes of relevant components. If the inner hole depth is too large or too small, it is reprocessed using other equipment to meet actual production needs. Currently, detecting whether a sleeve is in place generally uses a contact switch as a sensor. When the contact switch moves to a certain depth within the corresponding position and the probe contacts the sleeve, it outputs a voltage signal, indicating that a sleeve is installed at that position; otherwise, it indicates that a sleeve is not installed at that position. For internal hole depth testing, a probe with a scale value is generally used to test the depth of the internal hole at the corresponding position. Specifically, for positions where it is inconvenient for staff to manually test, the control system controls the robotic arm of a multi-axis robot to move the probe to the testing position. After the robotic arm moves the probe into the internal hole, the staff can determine whether the internal hole depth is qualified by reading the digital value of the probe outside the upper end of the internal hole (specifically, a camera captures an image at the probe position, and the staff reads the value on a display screen in the working chamber).
[0003] While current methods for detecting casing placement and inner hole depth meet inspection needs to some extent, they require two separate sensors and probes for each. This means the two processes cannot be performed simultaneously, necessitating the use of two multi-axis robots to separately check casing placement and inner hole depth data. This increases overall equipment investment, complicates the equipment, and hinders work efficiency. Therefore, considering these factors, providing an inspection device that can simultaneously detect casing placement and inner hole depth is highly necessary. Utility Model Content
[0004] In order to overcome the shortcomings of existing equipment used in vehicle manufacturing and other fields for detecting whether the sleeve is in place and the depth of the inner hole, which are limited by structure and function as described in the background art, this utility model provides a sleeve placement and opening depth detection device that is used in conjunction with a multi-axis robot. Under the joint action of related mechanisms, it can detect the relevant positions of the equipment, whether the sleeve is installed in place, or the inner hole depth data. The overall structure of the device is relatively compact, the cost is low, and the work efficiency is improved accordingly.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A sleeve positioning and opening depth detection device includes an outer sleeve, a fixed base, a laser rangefinder sensor, a spring, a reed switch, a magnet, a movable block, a contact block, and an indicator light. The fixed base is fixedly installed on the upper outer side of the outer sleeve, and the fixed base is fixedly installed together with the front end of the robotic arm of a multi-axis robot. The lower end of the outer sleeve has a shaft hole, and a shaft is fixedly installed on the lower end of the movable block. The movable block is located inside the outer sleeve, and the shaft is movably located within the shaft hole. The upper end of the contact block is fixedly installed on the lower end of the shaft. The reed switch is fixedly installed on one side of the lower end inside the outer sleeve, and the magnet is fixedly installed on one side of the shaft. A guide rod is fixedly installed on the upper end of the movable block, and the lower end of the spring is sleeved on the upper side of the guide rod. The lower end of the contact block has a mounting groove, and the laser rangefinder sensor is fixedly installed in the mounting groove. The indicator light and the display table matching the laser rangefinder sensor are installed in an electrical control box.
[0007] Furthermore, the outer diameter of the movable block is smaller than the inner diameter of the outer sleeve.
[0008] Furthermore, the reed switch is a normally open contact reed switch, and the distance between it and the magnet is [not specified].
[0009] Furthermore, when the upper end of the contact block and the outer side of the lower end of the outer sleeve are in contact, the magnet and the reed switch are in the same plane, and the moving contact and the stationary contact inside the reed switch are closed.
[0010] Furthermore, when the lower end of the movable block contacts the upper end of the reed switch, the magnet and the reed switch are misaligned, and the internal contacts of the reed switch are open.
[0011] Furthermore, the outer diameter of the contact plate and the outer sleeve is smaller than the inner diameter of the testing station, but larger than the inner diameter of the sleeve of the testing station.
[0012] Furthermore, one end of the reed switch is electrically connected to the power input end of the indicator light.
[0013] Compared with existing technologies, the advantages of this invention are as follows: This invention, used in conjunction with a multi-axis robot and with the combined action of related mechanisms, is primarily used for detecting whether sleeves are installed at relevant vehicle workstations and for detecting the depth of deep holes at corresponding workstations. For sleeve detection, after the multi-axis robot arm controls the contact plate to contact the sleeve at the detection station, an indicator light illuminates and inputs a voltage signal to the control system. For deep hole detection, after the laser rangefinder sensor is positioned at the detection station, the operator can intuitively understand whether the detected deep hole depth is qualified through the reading on its accompanying display. This invention allows a single set of equipment to detect relevant equipment positions, whether sleeves are installed correctly, or the depth of the inner hole. The overall structure of the equipment is relatively compact, the cost is low, and work efficiency is improved accordingly. In summary, this invention has good application prospects. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.
[0016] Figure 2 This is a partial planar structural diagram of the magnet and reed switch in a misaligned state according to this utility model.
[0017] Figure 3 This is a partial planar structural diagram of the present invention, showing the magnet and reed switch in a planar state.
[0018] Figure 4 This is the circuit diagram of this utility model. Detailed Implementation
[0019] Figure 1 , 2As shown in Figures 3 and 4, a sleeve positioning and opening depth detection device includes an outer sleeve 1, a fixed base 2, a laser rangefinder A2, a spring 3, a reed switch GH, a power module A1, a permanent magnet 4, a movable block 5, a contact block 6, and an indicator light H. The fixed base 2 is fixedly installed on the upper outer side of the hollow outer sleeve 1. The fixed base 2 has multiple fixing holes 21 around its perimeter. The fixed base 2 is fixedly installed together with the flange at the front end of the robotic arm of a multi-axis robot (not shown in the figure) via multiple fixing holes 21 and bolts. There is a shaft hole 101 in the middle of the lower end of the outer sleeve 1. A shaft 51 is fixedly installed in the middle of the lower end of the movable block 5. The movable block 5 is located in the middle of the inner part of the outer sleeve 1. The middle part of the shaft 51 is movably located in the shaft hole 101. The middle of the upper end of the contact block 6 is fixedly installed in the lower end of the shaft 51, and the contact block 6 is located on the lower outer side of the outer sleeve 1. The GH is vertically and fixedly installed in the lower left middle part of the outer sleeve 1 and located at the lower end of the movable block 5. The right end of the magnet 4 is fixedly installed in the middle of the left end of the shaft 51. A guide rod 52 is fixedly installed in the middle of the upper end of the movable block 5. The lower end of the spring 3 is sleeved on the outside of the guide rod 52. There is a recessed mounting groove 61 in the middle of the lower end of the contact block 6. The laser range sensor A2 is fixedly installed in the mounting groove 61 and its probe is located on the lower side. The lower end of the probe of the laser range sensor A2 is higher than the upper end of the mounting groove 61. The laser range sensor A2 is connected to a wire with a length margin. The wire connected to the reed switch GH is led out through the opening at the lower left end of the outer sleeve 1 and the opening is sealed with sealant. The power module A1, the indicator light H, and the LCD display V matching the laser range sensor A2 are installed in the component box 7. The component box 7 is installed in the electrical control box.
[0020] Figure 1 , 2As shown in Figures 3 and 4, the outer diameter of the movable block 5 is slightly smaller than the inner diameter of the outer sleeve 1. The reed switch GH is a normally open reed switch, and its moving contact is located on the left side inside the outer sleeve 1. When the upper end of the contact block 6 contacts the outer side of the lower end of the outer sleeve 1, the magnet 4 is located on the right side of the reed switch GH and is in the same plane, and the moving and stationary contacts inside the reed switch GH are closed. When the lower end of the movable block 5 contacts the upper end of the reed switch GH, the magnet 4 and the reed switch GH are misaligned, and the contacts inside the reed switch GH are open. The outer diameter of the contact plate 6 and the outer sleeve 101 is smaller than the inner diameter of the detection station and larger than the inner diameter of the detection station sleeve. The display interface of the display V and the light-emitting surface of the indicator light H are located outside the two openings at the front of the electrical control box, respectively. One end of the reed switch GH is connected to the signal input terminal of the control system of the multi-axis robot (not shown in the figure) via a wire. The power input terminals 1 and 2 of power module A1 are connected to the two poles of AC 220V power supply via wires. The power output terminals 3 and 4 of power module A1 are connected to the terminals 1 and 2 of laser rangefinder A2 via wires. One end of reed switch GH is connected to the positive power output terminal 3 of power module A1 via wires. The other end of reed switch GH, the negative power output terminal 4 of power module A1, and the two ends of the power input of indicator light H are connected via wires.
[0021] Figure 1 , 2 As shown in Figures 3 and 4, this novel collaborative multi-axis robot, in conjunction with relevant mechanisms, is primarily used for detecting whether sleeves are installed at vehicle-related workstations and for detecting the depth of deep holes at corresponding workstations. After AC 220V power enters the power input terminals 1 and 2 of power module A1, pins 3 and 4 of power module A1 output a stable DC 12V power supply, which enters the power input terminals of laser rangefinder A2, etc. For sleeve detection, the multi-axis robot arm controls the contact plate 6 to vertically reach the sleeve at the detection station and then descend. Thus, the lower end of contact block 6 contacts the upper end of the sleeve, and contact block 6 overcomes the elastic force of the spring to move upwards. When the upper end of contact block 6 contacts the outer side of the lower end of the outer sleeve 1, magnet 4 is located on the right side of reed switch GH in a plane, and the moving and stationary contacts inside reed switch GH close. This allows 12V power to enter the power input terminal of indicator light H, energizing indicator light H to indicate to the operator that a sleeve is installed at that location (simultaneously, a voltage signal enters the signal input terminal of the control system). In practice, when no sleeve is installed at the corresponding location, since the inner diameter of the sleeve installation location is larger than the outer diameter of the outer sleeve and the contact plate, after the robotic arm drives the contact plate down to a certain height and stops moving, the contact plate does not move upward. Under the elastic force of the spring 3, the movable block 5 moves downward. The lower end of the movable block 5 contacts the upper end of the reed switch GH, and the magnet 4 and the reed switch GH are misaligned. The internal contacts of the reed switch GH are open. As a result, the indicator light H will not be energized and will not light up (indicating that no sleeve is installed at that location), and the corresponding control system will not input a voltage signal.
[0022] Figure 1 , 2 As shown in Figures 3 and 4, when the present application detects a deep hole (the power switch S of the reed switch GH can be turned off), after the robotic arm of the multi-axis robot controls the laser distance sensor A2 to be located at the detection station (the lower end of the contact plate contacts the upper end outside the deep hole, and the upper end contacts the lower end outside the outer cylinder), the probe of the laser distance sensor A2 will be vertically aligned with the upper end of the deep hole (the inner diameter of the deep hole is smaller than the outer diameter of the contact plate). In actual situations, the greater the depth of the deep hole, the higher the voltage signal output by the 3rd pin of the laser distance sensor A2, and vice versa, the smaller the voltage signal output. This voltage signal enters the power input terminal of the display meter V supporting the laser distance sensor A2. Thus, the display meter V displays the corresponding depth signal (the higher the voltage signal, the deeper the deep hole, and vice versa, the smaller). Through all the above technical solutions, a set of equipment of this new type can respectively detect the relevant positions of the equipment, whether the casing is installed in place or the depth data of the inner hole. The overall structure of the equipment is relatively compact, the cost is low, and the work efficiency is correspondingly improved. Figure 4 Among them, the reed switch GH is a reed switch with a normally open contact in a glass shell; the power module A1 is a finished product of an AC 220V to DC 12V switching power supply module; the laser distance sensor A2 is a finished product of a 0 - 1m laser distance digital display meter of model TOF400SC700, which is equipped with a display meter; the indicator light H is a red indicator light with a power of 1W.
[0023] The above has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.
[0024] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A sleeve positioning and opening depth detection device, comprising an outer sleeve, a fixed base, a laser rangefinder, a spring, a reed switch, a magnet, a movable block, a contact block, and an indicator light; characterized in that, The fixed base is fixedly installed on the upper end of the outer sleeve, and the fixed base and the front end of the multi-axis robot's robotic arm are fixedly installed together; the lower end of the outer sleeve has a shaft hole, and a shaft is fixedly installed on the lower end of the movable block. The movable block is located inside the outer sleeve, and the shaft is movably located within the shaft hole. The upper end of the contact block is fixedly installed on the lower end of the shaft. The reed switch is fixedly installed on one side of the lower end inside the outer sleeve, and the magnet is fixedly installed on one side of the shaft; a guide rod is fixedly installed on the upper end of the movable block, and the lower end of the spring is sleeved on the upper side of the guide rod. The lower end of the contact block has a mounting groove, and the laser range sensor is fixedly installed in the mounting groove; the indicator light and the display table matching the laser range sensor are installed in the electrical control box.
2. The sleeve positioning and opening depth detection device according to claim 1, characterized in that, The outer diameter of the movable block is smaller than the inner diameter of the outer sleeve.
3. The sleeve positioning and opening depth detection device according to claim 1, characterized in that, A reed switch is a normally open reed switch, and the distance between it and the magnet is [not specified].
4. The sleeve positioning and opening depth detection device according to claim 1, characterized in that, When the upper end of the contact block and the lower outer side of the outer sleeve are in contact, the magnet and the reed switch are in the same plane, and the moving contact and stationary contact inside the reed switch are closed.
5. The sleeve positioning and opening depth detection device according to claim 1, characterized in that, When the lower end of the movable block contacts the upper end of the reed switch, the magnet and the reed switch are misaligned, and the internal contacts of the reed switch are open.
6. The sleeve positioning and opening depth detection device according to claim 1, characterized in that, The outer diameter of the contact plate and outer sleeve is smaller than the inner diameter of the testing station, but larger than the inner diameter of the sleeve of the testing station.
7. The sleeve positioning and opening depth detection device according to claim 1, characterized in that, One end of the reed switch is electrically connected to the power input end of the indicator light.