Thickness detection equipment for cam in cam type automobile door lock

Abstract

The utility model relates to the technical field of cam detection equipment, in particular to cam thickness detection equipment in a cam type automobile door lock, which comprises a base, a detection unit, a cam limiting unit and a driving unit, a detection cavity of the detection unit is positioned in the center of the inside of the base, and a bottom supporting limiting mechanism of the cam limiting unit is arranged at the bottom of the detection cavity. A top limiting mechanism of the cam limiting unit is arranged at the top of the detection cavity, a top limiting motor of the driving unit is connected with a top driving rod of the top limiting mechanism, and a bottom supporting limiting motor of the driving unit is connected with a bottom supporting driving rod of the bottom supporting limiting mechanism. According to the thickness detection equipment for the cam in the cam type automobile door lock adopting the structure, the thickness of the cam is detected through semi-automatic operation, the cam is limited and fixed by the bottom supporting limiting mechanism and the top limiting mechanism, and the cam is driven to move towards the interior of the detection cavity, so that the thickness of the cam is detected. The laser thickness measuring sensor detects the thickness of the cam, rejects unqualified products, and improves the cam detection efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of cam detection equipment, in particular to a thickness detection device for a cam in a cam type automobile door lock. Background Art

[0002] Cam-type car door lock is a car door lock device designed using the principle of cam mechanism. It drives the cam to rotate through a key or other means to control the locking and unlocking of the door lock. Cam thickness detection of cam-type car door locks usually involves the use of precision measuring tools, such as vernier calipers or micrometers, to ensure that the cam size meets the manufacturing standards, thereby ensuring the normal operation of the door lock mechanism. This test is essential for maintaining the precise positioning and smooth operation of the door lock. If the cam thickness of the cam-type car door lock is unqualified, it will affect the normal opening and closing and safety of the door lock. Using a vernier caliper or micrometer to measure the cam thickness one by one will greatly reduce the detection efficiency, and the highly automated and precise detection equipment has a large initial investment, including purchase cost, installation and commissioning costs, and later maintenance costs. Utility Model Content

[0003] The utility model aims to provide a cam thickness detection device for a cam type automobile door lock. The cam thickness is detected by semi-automatic operation. The bottom limit mechanism and the top limit mechanism limit and fix the cam while driving the cam to move into the detection cavity. The laser thickness sensor detects the thickness of the cam and rejects unqualified products.

[0004] To achieve the above-mentioned purpose, the utility model provides a cam thickness detection device in a cam type automobile door lock, comprising a base, a detection unit, a cam limit unit and a driving unit, wherein the detection cavity of the detection unit is located at the center of the base, a bottom support limit mechanism of the cam limit unit is provided at the bottom of the detection cavity, a top limit mechanism of the cam limit unit is provided at the top of the detection cavity, a top limit motor of the driving unit is connected to a top driving rod of the top limit mechanism, and a bottom support limit motor of the driving unit is connected to a bottom support drive rod of the bottom support limit mechanism;

[0005] The bottom limiting plate of the bottom limiting mechanism is slidably connected to the bottom of the detection cavity through a limiting rod, the top limiting rod of the top limiting mechanism is located above the detection cavity, and a laser thickness sensor is arranged on the top of the detection cavity.

[0006] Preferably, the bottom supporting driving rod of the bottom limiting mechanism is threadedly connected to the threaded hole in the center of the driving slider, the top of the driving slider is slidably connected to the limit slider at the bottom of the bottom supporting limiting plate, the bottom of the bottom supporting limiting plate is symmetrically provided with limit rods in the center of both sides of the limit slider, the lower part of the limit rod is slidably connected to the limit sleeve at the bottom of the installation cavity, and a limit protrusion is provided on the top of the bottom supporting limiting plate.

[0007] Preferably, an installation cavity is provided in the base, the driving slider is slidably connected to the driving limit sleeve at the bottom of the installation cavity, the top of the driving slider is tilted, the side of the driving slider close to the bottom limit motor is the lowest point, an arc-shaped positioning groove is provided in the center of the lower part of the limit slider, and the bottom of the positioning groove is provided with an inclination matching the top of the driving slider.

[0008] Preferably, the first limit follower rod, the second limit follower rod and the third limit follower rod of the top limit mechanism are all connected to the bottom of the installation cavity through bearings, the first limit follower rod, the second limit follower rod and the third limit follower rod are all sleeved with driven pulleys in the installation cavity, and the top driving rod is sleeved with a driving pulley in the installation cavity, and the driving pulley is connected to the driven pulley in sequence through a synchronous belt.

[0009] Preferably, the first limit follower rod, the second limit follower rod, the third limit follower rod and the top drive rod are partially located outside the base, and the first limit follower rod, the second limit follower rod, the third limit follower rod and the top drive rod are all provided with threaded portions on their portions outside the base, and the threaded portions of the first limit follower rod, the second limit follower rod, the third limit follower rod and the top drive rod are all threadedly connected to the mounting sleeve.

[0010] Preferably, the two sides of the long side of the detection cavity are respectively the first limit follower rod and the second limit follower rod, the top driving rod and the third limit follower rod, the mounting sleeve of the first limit follower rod and the mounting sleeve of the second limit follower rod are connected through the first mounting limit rod, and the mounting sleeve of the top driving rod and the mounting sleeve of the third limit follower rod are connected through the second mounting limit rod.

[0011] Preferably, a connecting hole is provided in the center of the first installation limit rod and the center of the second installation limit rod, and the two connecting holes are respectively connected to the two ends of the top limit rod. A clamping block is provided in the center of the top limit rod, and a clamping groove is provided at the bottom of the clamping block.

[0012] Preferably, the movable hole at the bottom of the detection cavity matches the width of the limit slider, the length of the movable hole matches the distance between the outermost sides of the two limit rods, and the width of the limit slider is greater than the diameter of the limit rod.

[0013] Preferably, the top limit motor and the bottom limit motor of the drive unit are both located in the mounting cavity of the base.

[0014] Preferably, the first limit follower rod, the second limit follower rod, the third limit follower rod and the top drive rod are respectively arranged at the four corners of the base, and the first limit follower rod, the second limit follower rod, the third limit follower rod and the top drive rod are all connected to the top of the base through bearings.

[0015] Therefore, the utility model adopts a cam thickness detection device of a cam type automobile door lock with the above structure, detects the thickness of the cam through semi-automatic operation, and while the bottom limit mechanism and the top limit mechanism limit and fix the cam, the cam is driven to move into the detection cavity. The laser thickness sensor detects the thickness of the cam, removes unqualified products, and improves the detection efficiency and qualified rate of the cam.

[0016] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a cam thickness detection device in a cam-type automobile door lock of the utility model (the threaded portion, the top limit rod and the cam are not shown);

[0018] Figure 2 It is a front cross-sectional view of a cam thickness detection device in a cam-type automobile door lock of the utility model;

[0019] Figure 3 This is a schematic diagram of the upward movement state of the bottom support limit mechanism in the utility model;

[0020] Figure 4 This is a schematic diagram of the bottom support and limiting mechanism of the utility model in the downward movement state;

[0021] Figure 5 It is a side cross-sectional view after the top limiting rod and the clamping block are connected in the utility model;

[0022] Figure 6 It is a schematic diagram of the cam in the utility model.

[0023] Reference numerals:

[0024] 1. Base; 11. Installation cavity; 12. Drive limit sleeve; 13. Limit sleeve; 2. Detection unit; 21. Detection cavity; 22. Laser thickness sensor; 3. Drive unit; 31. Bottom limit motor; 32. Top limit motor; 4. Bottom limit mechanism; 41. Bottom limit plate; 42. Bottom drive rod; 43. Drive slider; 44. Limit slider; 45. Limit rod; 46. Limit protrusion; 47. Positioning groove; 5. Top limit mechanism; 51, first limit follower rod; 52, second limit follower rod; 53, third limit follower rod; 54, top driving rod; 55, driving pulley; 56, driven pulley; 57, threaded portion; 58, first installation limit rod; 59, second installation limit rod; 510, installation sleeve; 511, connecting half groove; 512, clamping block; 513, clamping groove; 514, top limit rod; 6, cam groove. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments. Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The above features or features mentioned in the specific examples mentioned in the present invention can be combined arbitrarily, and these specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0026] Example

[0027] like Figure 1-2 As shown, the utility model provides a cam thickness detection device in a cam-type automobile door lock, comprising a base 1, a detection unit 2, a cam limit unit and a drive unit 3. The detection cavity 21 of the detection unit 2 is located in the center of the base 1, the bottom of the detection cavity 21 is provided with a bottom limit mechanism 4 of the cam limit unit, and the top of the detection cavity 21 is provided with a top limit mechanism 5 of the cam limit unit. The top limit motor 32 of the drive unit 3 is connected to the top drive rod 54 of the top limit mechanism 5, and the bottom limit motor 31 of the drive unit 3 is connected to the bottom drive rod 42 of the bottom limit mechanism 4.

[0028] The bottom limiting plate 41 of the bottom limiting mechanism 4 is slidably connected to the bottom of the detection cavity 21 through the limiting rod 45. The top limiting rod 514 of the top limiting mechanism 5 is located above the detection cavity 21. A laser thickness sensor 22 is provided on the top of the detection cavity 21.

[0029] The base 1 is provided with a detection unit 2, a driving unit 3 and a bottom limiting mechanism 4 of a cam limiting unit, and a top limiting mechanism 5 is partially located inside the base 1 and partially located outside the base 1. The bottom limiting mechanism 4 is connected to the cam groove 6 at the bottom of the cam, and the top limiting mechanism 5 is connected to the cam groove 6 at the top of the cam. The driving unit 3 is started to drive the top limiting mechanism 5 and the bottom limiting mechanism 4 to move, thereby realizing the movement of the cam relative to the detection cavity 21 and the laser thickness sensor 22. The bottom limiting mechanism 4 cooperates with the top limiting mechanism 5 to fix the cam and bring it into the detection cavity 21. The laser thickness sensor 22 at the top of the detection cavity 21 detects the thickness of each part of the cam moving downward, and removes unqualified cams according to the detected thickness data.

[0030] like Figure 4-5 As shown, the bottom supporting driving rod 42 of the bottom supporting limiting mechanism 4 is threadedly connected with the threaded hole in the center of the driving slider 43, and the top of the driving slider 43 is slidably connected with the limiting slider 44 at the bottom of the bottom supporting limiting plate 41. The bottom of the bottom supporting limiting plate 41 is symmetrically provided with limiting rods 45 at the center of both sides of the limiting slider 44, and the lower part of the limiting rod 45 is slidably connected with the limiting sleeve 13 at the bottom of the installation cavity 11. The top of the bottom supporting limiting plate 41 is provided with a limiting protrusion 46, which matches the cam groove 6 at the bottom of the cam. After the two are connected, the cam can be prevented from rotating during the detection process.

[0031] The angle between the bottom supporting driving rod 42 and the limiting rod 45 is 90°. The bottom supporting limiting motor 31 is started to drive the bottom supporting driving rod 42 to rotate, and the bottom supporting driving rod 42 drives the driving slider 43 threadedly connected thereto to move relative to the driving limiting sleeve 12. During the movement of the driving slider 43, the limiting slider 44 slidably connected thereto is driven to move. During the process of the driving slider 43 gradually approaching the bottom supporting limiting motor 31, the limiting slider 44 drives the bottom supporting limiting plate 41 to gradually move upward. The movement of the bottom supporting limiting plate 41 drives the limiting rod 45 to move synchronously. The lower part of the limiting rod 45 always slides in the limiting sleeve 13. The limiting sleeve 13 limits the movement range of the limiting rod 45, thereby limiting the movement range of the bottom supporting limiting plate 41.

[0032] The base 1 is provided with an installation cavity 11, and the driving slider 43 is slidably connected with the driving limit sleeve 12 at the bottom of the installation cavity 11. The top of the driving slider 43 is tilted, and the side of the driving slider 43 close to the bottom limit motor 31 is the lowest point. An arc-shaped positioning groove 47 is provided at the center of the lower part of the limit slider 44, and the bottom of the positioning groove 47 is provided with an inclination matching the top of the driving slider 43. The positioning groove 47 is provided, when the driving slider 43 is away from the bottom limit motor 31, the limit slider 44 provides space in the limit slider 44 for the bottom drive rod 42 during the downward movement, so as to prevent the bottom drive rod 42 from affecting the downward movement of the limit slider 44.

[0033] The first limit follower rod 51, the second limit follower rod 52 and the third limit follower rod 53 of the top limit mechanism 5 are all connected to the bottom of the installation cavity 11 through bearings, the first limit follower rod 51, the second limit follower rod 52 and the third limit follower rod 53 are all sleeved with driven pulleys 56 in the installation cavity 11, and the top driving rod 54 is sleeved with a driving pulley 55 in the installation cavity 11, and the driving pulley 55 is connected to the driven pulley 56 in sequence through a synchronous belt.

[0034] The top limit motor 32 drives the top driving rod 54 to rotate, and the top driving rod 54 drives the driven pulley 56 to rotate through the driving pulley 55 and the synchronous belt, thereby driving the first limit driven rod 51, the second limit driven rod 52 and the third limit driven rod 53 to rotate synchronously. The setting of the bearing ensures that the first limit driven rod 51, the second limit driven rod 52 and the third limit driven rod 53 can rotate smoothly in the installation cavity 11.

[0035] The first position limiting follower rod 51, the second position limiting follower rod 52, the third position limiting follower rod 53 and the top driving rod 54 are all partially located outside the base 1, and the first position limiting follower rod 51, the second position limiting follower rod 52, the third position limiting follower rod 53 and the top driving rod 54 are all provided with threaded portions 57 on their portions outside the base 1, and the threaded portions 57 of the first position limiting follower rod 51, the second position limiting follower rod 52, the third position limiting follower rod 53 and the top driving rod 54 are all threadedly connected to the mounting sleeve 510.

[0036] The two sides of the long side of the detection cavity 21 are respectively the first limit follower rod 51 and the second limit follower rod 52, the top driving rod 54 and the third limit follower rod 53. The mounting sleeve 510 of the first limit follower rod 51 and the mounting sleeve 510 of the second limit follower rod 52 are connected by the first mounting limit rod 58, and the mounting sleeve 510 of the top driving rod 54 and the mounting sleeve 510 of the third limit follower rod 53 are connected by the second mounting limit rod 59.

[0037] Due to the setting of the threaded portion 57, when the first limit follower rod 51, the second limit follower rod 52, the third limit follower rod 53 and the top driving rod 54 rotate, the mounting sleeve 510 moves up and down through the threaded portion 57, thereby driving the first mounting limit rod 58 and the second mounting limit rod 59 to move up and down synchronously, thereby adjusting the distance between the two and the top of the detection chamber 21.

[0038] like Figure 5-6 As shown, a connecting half groove 511 is provided at the center of the first installation limit rod 58 and the center of the second installation limit rod 59, and the two connecting half grooves 511 are respectively connected to the two ends of the top limit rod 514. A clamping block 512 is provided at the center of the top limit rod 514, and a clamping groove 513 is provided at the bottom of the clamping block 512. The clamping groove 513 is matched and connected with the cam groove 6 at the top of the cam, thereby fixing the top of the cam, and then cooperates with the limiting protrusion 46 to fix the cam, so as to prevent the cam from rotating during the detection process.

[0039] The opening of the arc-shaped connecting half groove 511 faces upward, and the top limiting rod 514 is placed in the two connecting half grooves 511 and respectively connected with the first limiting rod 45 and the second limiting rod 45. The connecting half groove 511 of the first limiting rod 45 and the connecting half groove 511 of the second limiting rod 45 are both provided with connecting holes 1, and the two connecting holes 1 are respectively connected with the connecting holes 2 at both ends of the top limiting rod 514 by bolts, so that the top limiting rod 514 is fixedly connected with the first limiting rod 45 and the second limiting rod 45.

[0040] The movable hole at the bottom of the detection chamber 21 matches the width of the limit slider 44, the length of the movable hole matches the distance between the outermost sides of the two limit rods 45, and the width of the limit slider 44 is greater than the diameter of the limit rod 45. The size of the movable hole is set to ensure that the limit slider 44 and the limit rod 45 can smoothly drive the bottom limit plate 41 to move. The bottom limit plate 41 moves upward along the detection chamber 21 to about the middle of the detection chamber 21. After the bottom limit plate 41 moves up to the highest position, the bottom of the limit rod 45 is still located in the limit sleeve 13. The handheld cam is placed in the detection chamber 21 and fixed from the upper and lower sides of the cam by the bottom limit plate 41 and the clamping block 512. The top limit motor 32 and the bottom limit motor 31 are controlled to ensure that the cam continues to enter the detection chamber 21 under the synchronous drive of the bottom limit plate 41 and the clamping block 512.

[0041] The top limiting motor 32 and the bottom limiting motor 31 of the driving unit 3 are both located in the mounting cavity 11 of the base 1 . The top limiting motor 32 is connected to the side wall of the mounting cavity 11 , and the bottom limiting motor 31 is connected to the bottom of the mounting cavity 11 .

[0042] The first limit follower rod 51, the second limit follower rod 52, the third limit follower rod 53 and the top driving rod 54 are respectively arranged at the four corners of the base 1 to ensure that the top limit mechanism 5 and the bottom limit mechanism 4 work independently of each other. The first limit follower rod 51, the second limit follower rod 52 and the third limit follower rod 53 are all connected to the bottom of the base 1 through bearings to ensure the smooth rotation of the first limit follower rod 51, the second limit follower rod 52 and the third limit follower rod 53.

[0043] When in use, first start the bottom limit motor 31 to raise the bottom limit plate 41 to the highest height, and then put the handheld cam into the detection cavity 21. During the movement of the cam into the detection cavity 21, the laser thickness sensor 22 detects the thickness of the part of the cam that enters the detection cavity 21. Connect the cam groove 6 at the bottom of the cam with the limit protrusion 46, and then start the top limit motor 32 to drive the top limit rod 514 to move down to the clamping block 512 and connect with the cam groove 6 at the top of the cam. After the cam is fixed by the clamping block 512 and the bottom limit plate 41, it continues to move down driven by the two, and the thickness of the remaining part of the cam is detected, and unqualified products are eliminated according to the measured thickness data.

[0044] Therefore, the utility model adopts a cam thickness detection device of a cam type automobile door lock with the above structure, detects the thickness of the cam through semi-automatic operation, and while the bottom limit mechanism and the top limit mechanism limit and fix the cam, the cam is driven to move into the detection cavity. The laser thickness sensor detects the thickness of the cam, removes unqualified products, and improves the detection efficiency and qualified rate of the cam.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A cam thickness detection device for a cam-type automobile door lock, characterized in that: It includes a base, a detection unit, a cam limit unit and a driving unit. The detection cavity of the detection unit is located in the center of the base. The bottom of the detection cavity is provided with a bottom limit mechanism of the cam limit unit. The top of the detection cavity is provided with a top limit mechanism of the cam limit unit. The top limit motor of the driving unit is connected to the top drive rod of the top limit mechanism. The bottom limit motor of the driving unit is connected to the bottom drive rod of the bottom limit mechanism. The bottom limiting plate of the bottom limiting mechanism is slidably connected to the bottom of the detection cavity through a limiting rod, the top limiting rod of the top limiting mechanism is located above the detection cavity, and a laser thickness sensor is arranged on the top of the detection cavity.

2. The device for detecting the thickness of the cam in a cam-type automobile door lock according to claim 1, characterized in that: The bottom supporting driving rod of the bottom limiting mechanism is threadedly connected to the threaded hole in the center of the driving slider, the top of the driving slider is slidably connected to the limit slider at the bottom of the bottom supporting limiting plate, the bottom of the bottom supporting limiting plate is symmetrically provided with limit rods in the center of both sides of the limit slider, the lower part of the limit rod is slidably connected to the limit sleeve at the bottom of the installation cavity, and a limit protrusion is provided on the top of the bottom supporting limiting plate.

3. The device for detecting the thickness of the cam in a cam-type automobile door lock according to claim 2, characterized in that: An installation cavity is provided in the base, and the driving slider is slidably connected to the driving limit sleeve at the bottom of the installation cavity. The top of the driving slider is tilted, and the side of the driving slider close to the bottom limit motor is the lowest point. An arc-shaped positioning groove is provided in the center of the lower part of the limit slider, and the bottom of the positioning groove is provided with an inclination matching the top of the driving slider.

4. The device for detecting the thickness of a cam in a cam-type automobile door lock according to claim 1, characterized in that: The first limit follower rod, the second limit follower rod and the third limit follower rod of the top limit mechanism are all connected to the bottom of the installation cavity through bearings, the first limit follower rod, the second limit follower rod and the third limit follower rod are all sleeved with driven pulleys in the installation cavity, and the top driving rod is sleeved with a driving pulley in the installation cavity, and the driving pulley is connected to the driven pulley in sequence through a synchronous belt.

5. The device for detecting the thickness of the cam in a cam-type automobile door lock according to claim 4, characterized in that: The first limit follower rod, the second limit follower rod, the third limit follower rod and the top drive rod are all partially located outside the base, and the first limit follower rod, the second limit follower rod, the third limit follower rod and the top drive rod are all provided with threaded portions on their portions outside the base, and the threaded portions of the first limit follower rod, the second limit follower rod, the third limit follower rod and the top drive rod are all threadedly connected to the mounting sleeve.

6. The device for detecting the thickness of the cam in a cam-type automobile door lock according to claim 5, characterized in that: The two sides of the long side of the detection cavity are respectively the first limit follower rod and the second limit follower rod, the top driving rod and the third limit follower rod. The mounting sleeve of the first limit follower rod and the mounting sleeve of the second limit follower rod are connected through the first mounting limit rod, and the mounting sleeve of the top driving rod and the mounting sleeve of the third limit follower rod are connected through the second mounting limit rod.

7. The device for detecting the thickness of the cam in a cam-type automobile door lock according to claim 6, characterized in that: A connecting hole is provided in the center of the first installation limit rod and the center of the second installation limit rod. The two connecting holes are respectively connected to the two ends of the top limit rod. A clamping block is provided in the center of the top limit rod, and a clamping groove is provided at the bottom of the clamping block.

8. The device for detecting the thickness of a cam in a cam-type automobile door lock according to claim 2, characterized in that: The moving hole at the bottom of the detection cavity matches the width of the limit slider, the length of the moving hole matches the distance between the outermost sides of the two limit rods, and the width of the limit slider is greater than the diameter of the limit rod.

9. The device for detecting the thickness of the cam in a cam-type automobile door lock according to claim 3, characterized in that: The top limit motor and the bottom limit motor of the drive unit are both located in the installation cavity of the base.

10. The device for detecting the thickness of the cam in a cam-type automobile door lock according to claim 4, characterized in that: The first limit follower rod, the second limit follower rod, the third limit follower rod and the top drive rod are respectively arranged at the four corners of the base, and the first limit follower rod, the second limit follower rod, the third limit follower rod and the top drive rod are all connected to the top of the base through bearings.

Images