Key bit measuring device

Abstract

The utility model relates to a key bit measuring device, which comprises a supporting seat, a measuring assembly and a driving assembly, and is characterized in that the measuring assembly comprises a connecting plate mounted on the driving assembly, a base mounted on the connecting plate and a laser displacement sensor mounted on the supporting seat; a through hole is formed in the base, a plurality of mounting grooves are formed in the base at intervals, and the mounting grooves are communicated with the through hole; the plurality of mounting grooves are internally provided with tooth pattern measuring units, and the driving assembly drives the base to move along the arrangement direction of the plurality of tooth pattern measuring units; the laser displacement sensor is used for measuring the distance between the tooth pattern measuring unit and the laser displacement sensor. The key bit measuring device has the advantages that key bits can be measured conveniently and quickly, and the production efficiency and the assembly precision of products are improved.

Description

Technical Field

[0001] The present application relates to the technical field of locks, and in particular to a key tooth measuring device. Background Art

[0002] The key is a lock accessory that matches the lock. The key has different depths and shapes of teeth that match the lock core of the corresponding lock. When producing locks, the key is usually made first, and then the corresponding lock core is made according to the key's teeth. In the assembly and production process of blade locks or pin locks, the key's teeth height must be determined first, and the corresponding pin or blade must be selected according to the key's teeth height to complete the lock core assembly.

[0003] The depth of the key teeth of the existing pin tumbler lock is identified by the worker's eyes during the assembly of the pin tumbler lock, so it is highly dependent on the worker's experience. Even so, the error rate of identification is still very high, which seriously affects the production efficiency and assembly accuracy of the product. Utility Model Content

[0004] The present application provides a key thread measuring device, which can conveniently and quickly measure the key thread, thereby improving the production efficiency and assembly accuracy of the product.

[0005] The key thread measuring device provided in this application adopts the following technical solution:

[0006] A key thread measuring device comprises a support base, a measuring assembly and a driving assembly mounted on the support base, wherein the measuring assembly comprises a base mounted on the driving assembly and a laser displacement sensor mounted on the support base; a through hole is provided on the base, and a plurality of mounting grooves are spaced apart on the base, and the mounting grooves are arranged in communication with the through hole; thread measuring units are mounted in the plurality of mounting grooves, and the driving assembly drives the base to move along the arrangement direction of the plurality of thread measuring units; the laser displacement sensor is used to measure the distance between the thread measuring units and the light measuring units.

[0007] Preferably, the plurality of tooth measurement units each include a reset spring and a first blade and a second blade that are limitedly slidably installed in the installation groove; the reset spring is installed between the first blade and the second blade to promote relative movement between the two blades, the first blade and the second blade are staggered and both ends protrude outside the base; openings are provided on the end faces of the first blade and the second blade, contacts are provided on the mouth walls of the openings, the two contacts are staggered, and the openings on the plurality of tooth measurement units form keyholes for inserting keys.

[0008] Preferably, a limiting plate is provided on the outer circumferential surface of each of the first blade and the second blade, and two ends of the reset spring are respectively abutted between two limiting plates on the same tooth flower measuring unit.

[0009] Preferably, the two laser displacement sensors are respectively located on two sides of the base and are used to measure the distance between the first blade and the second blade.

[0010] Preferably, a limiting column for limiting the insertion depth of the key into the base is installed on the support seat.

[0011] Preferably, the driving assembly includes a servo motor mounted on a support seat, a screw connected to the output end of the servo motor, and a guide seat transmission-connected to the screw, the guide seat is directional-slidably mounted on the support seat, and the base is mounted on the guide seat.

[0012] Preferably, the driving assembly comprises a cylinder mounted on a support seat and a guide seat connected to an output end of the cylinder, the guide seat is directional and slidably mounted on the support seat, and the base is mounted on the guide seat.

[0013] Preferably, a positioning rail is provided on the support seat, and the guide seat is directional and slidably installed on the positioning rail.

[0014] Preferably, a limiting member for limiting the driving stroke of the driving assembly is installed on the support seat.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] By inserting the key into multiple thread measuring units, the base is driven to move along the arrangement direction of the multiple thread measuring units through the driving assembly, and the laser displacement sensor measures each thread measuring unit in turn, so as to measure the size of the key embossing, which is convenient and fast to measure the key thread, thereby improving the production efficiency and assembly accuracy of the product;

[0017] The key is inserted into the key socket formed by the plurality of tooth measurement units. At this time, the contacts on the first blade and the second blade move along with the shape of the key tooth, so that the first blade and the second blade on each tooth measurement unit are in the installation groove and move relative to each other. The return spring acts between the first blade and the second blade in a compressed state. Subsequently, the base is driven by the driving component to move along the arrangement direction of the plurality of tooth measurement units. The laser displacement sensors located on both sides of the base measure the distance between the first blade and the second blade on each tooth measurement unit and the first blade, respectively, and the size of the key embossing can be measured. After the measurement is completed, the key is pulled out of the key socket, the return spring is reset, and the first blade and the second blade are restored to their initial state, so as to prepare for the next key tooth measurement.

[0018] A positioning rail and a limiter for limiting the driving stroke of the driving assembly are arranged on the support seat, and the guide seat is directional and slidably mounted on the positioning rail to improve the stability of the driving assembly when driving the base to move;

[0019] By installing a limiting column for limiting the insertion depth of the key into the base on the support seat, the accuracy of the key being inserted into the tooth pattern measuring unit is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of a key tooth measuring device;

[0021] Figure 2 This is the left side view of the key tooth measuring device;

[0022] Figure 3 It is a schematic diagram of the structure of the measuring components in the key tooth measuring device;

[0023] Figure 4 is a top view of the measurement assembly;

[0024] Figure 5 It is a structural schematic diagram of the tooth flower measurement unit in the measurement component;

[0025] Figure 6 It is a schematic diagram of the structure of the first blade in the tooth flower measurement unit.

[0026] Explanation of the reference numerals: 1. Support seat; 11. Positioning guide rail; 12. Limiting member; 2. Measuring assembly; 21. Connecting plate; 22. Base; 221. Mounting slot; 222. Through hole; 23. Laser displacement sensor; 24. Tooth measuring unit; 241. Reset spring; 242. First blade; 243. Second blade; 244. Limiting piece; 245. Opening; 246. Contact; 247. Keyhole; 25. Limiting column; 3. Driving assembly; 31. Servo motor; 32. Screw rod; 33. Guide seat. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings.

[0028] The embodiment of the present application discloses a key bit measuring device. Example

[0029] Reference Figure 1 , Figure 2 The key tooth measuring device comprises a support base 1, a measuring assembly 2 and a driving assembly 3. The driving assembly 3 comprises a servo motor 31 mounted on the support base 1, a screw rod 32 connected to the output end of the servo motor 31 and a guide base 33 connected to the screw rod 32 in a transmission manner; the guide base 33 is directional and slidably mounted on the support base 1.

[0030] Reference Figures 1 to 4 The measuring assembly 2 includes a connecting plate 21 mounted on the guide seat 33 , a base 22 mounted on the connecting plate 21 , and a laser displacement sensor 23 mounted on the support seat 1 , wherein the two laser displacement sensors 23 are respectively located on both sides of the base 22 .

[0031] Reference Figures 2 to 4 A through hole 222 and a plurality of installation slots 221 are provided on the base 22. The through hole 222 is arranged perpendicular to the installation slots 221, and the plurality of installation slots 221 are arranged in communication with the through hole 222. A tooth flower measuring unit 24 is installed in each of the plurality of installation slots 221, and the driving assembly 3 drives the base 22 to move along the arrangement direction of the plurality of tooth flower measuring units 24.

[0032] Reference Figures 3 to 6 The plurality of tooth measuring units 24 each include a reset spring 241 and a first blade 242 and a second blade 243 which are limitedly slidably installed in the installation groove 221; the reset spring 241 is installed between the first blade 242 and the second blade 243 to promote relative movement between the two. The first blade 242 and the second blade 243 are staggered and both ends protrude from the outside of the base 22.

[0033] The first blade 242 and the second blade 243 have the same structure, that is, a limit plate 244 is provided on the outer circumferential surface of the first blade 242 and the second blade 243, an opening 245 is opened on the end surface of the first blade 242 and the second blade 243, and a contact 246 is provided on the mouth wall of the opening 245; the two ends of the reset spring 241 respectively abut between the two limit plates 244 on the same tooth measurement unit 24; the first blade 242 and the second blade 243 in the separate tooth measurement unit 24 are installed in the installation groove 221 in a positive and negative form, so that the two contacts 246 and the opening 245 are staggered, and the openings 245 on the multiple tooth measurement units 24 form a key socket 247 for inserting a key; the laser displacement sensors 23 located on both sides of the base 22 are used to measure the distance between the first blade 242 and the second blade 243 and them.

[0034] Reference Figure 1 , Figure 2 In order to improve the stability of the driving assembly 3 when driving the base 22, a positioning rail 11 is provided on the support seat 1, and the guide seat 33 is directional and slidably installed on the positioning rail 11. At the same time, a limiter 12 for limiting the driving stroke of the driving assembly 3 is installed on the support seat 1.

[0035] In order to improve the accuracy of the key being inserted into the tooth measurement unit 24 , a limiting column 25 for limiting the depth of the key being inserted into the base 22 is installed on the connecting plate.

[0036] The implementation principle is as follows: when it is necessary to measure the teeth inside the key, the key is inserted into the key insertion hole 247 formed by the plurality of teeth measuring units 24. At this time, the contacts 246 on the first blade 242 and the second blade 243 move along with the shape of the key teeth, so that the first blade 242 and the second blade 243 on each teeth measuring unit 24 are in the installation groove 221 and move relative to each other, and the return spring 241 acts between the first blade 242 and the second blade 243 in a compressed state; then, the base 22 is driven by the driving component 3 to move along the plurality of teeth measuring units 24. The tooth measuring units 24 move in the arrangement direction, and the laser displacement sensors 23 located on both sides of the base 22 measure the first blade 242 and the second blade 243 on each tooth measuring unit 24 and the distance therefrom in turn, so as to measure the size of the key embossing; after the measurement, the key is pulled out of the key socket 247, the reset spring 241 is reset and the first blade 242 and the second blade 243 are restored to the initial state, so as to prepare for the next key tooth measurement, which has the function of conveniently and quickly measuring the key tooth, thereby improving the production efficiency and assembly accuracy of the product. Example

[0037] A key tooth measuring device is different from Example 1 in that the driving component 3 is a cylinder installed on the support seat 1, the output end of the cylinder is connected to the guide seat 33, and the reciprocating motion of the base 22 in the measuring component 2 is realized through the reciprocating motion of the cylinder.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A key thread measuring device, comprising a support base (1), a measuring component (2) and a driving component (3), Features: The measuring component (2) comprises a base (22) mounted on the driving component (3) and a laser displacement sensor (23) mounted on the supporting base (1); a through hole (222) is provided on the base (22); a plurality of mounting grooves (221) are spaced apart on the base (22), and the mounting grooves (221) are arranged in communication with the through holes (222); a tooth flower measuring unit (24) is mounted in each of the plurality of mounting grooves (221); the driving component (3) drives the base (22) to move along the arrangement direction of the plurality of tooth flower measuring units (24); and the laser displacement sensor (23) is used to measure the distance between the tooth flower measuring unit (24) and the base.

2. The key bit measuring device according to claim 1, Features: The plurality of tooth measurement units (24) each comprises a reset spring (241) and a first blade (242) and a second blade (243) which are limitedly slidably mounted in the mounting groove (221); the reset spring (241) is mounted between the first blade (242) and the second blade (243) to promote relative movement between the two blades; the first blade (242) and the second blade (243) are arranged in a staggered manner and both ends protrude outside the base (22); openings (245) are provided on the end surfaces of the first blade (242) and the second blade (243); contacts (246) are provided on the mouth walls of the openings (245); the two contacts (246) are arranged in a staggered manner; the openings (245) on the plurality of tooth measurement units (24) form a keyhole (247) for inserting a key.

3. The key thread measuring device according to claim 2, Features: Limiting plates (244) are provided on the outer circumferential surfaces of the first blade (242) and the second blade (243), and the two ends of the return spring (241) respectively abut between two limiting plates (244) on the same tooth measurement unit (24).

4. The key bit measuring device according to claim 2, Features: The two laser displacement sensors (23) are respectively located on two sides of the base (22) and are used to measure the distance between the first blade (242) and the second blade (243).

5. The key bit measuring device according to claim 1, Features: A limiting column (25) for limiting the depth of the key inserted into the base (22) is installed on the support base (1).

6. The key bit measuring device according to claim 1, Features: The driving assembly (3) comprises a servo motor (31) mounted on the support seat (1), a screw rod (32) connected to the output end of the servo motor (31), and a guide seat (33) drivingly connected to the screw rod (32); the guide seat (33) is directional and slidably mounted on the support seat (1), and the base (22) is mounted on the guide seat (33).

7. The key bit measuring device according to claim 1, Features: The driving assembly (3) comprises a cylinder mounted on the support seat (1) and a guide seat (33) connected to the output end of the cylinder, the guide seat (33) being mounted on the support seat (1) in a directionally slidable manner, and the base (22) being mounted on the guide seat (33).

8. The key bit measuring device according to claim 6 or 7, Features: A positioning guide rail (11) is provided on the support seat (1), and the guide seat (33) is directional and slidably mounted on the positioning guide rail (11).

9. The key bit measuring device according to claim 1, Features: A limiting member (12) for limiting the driving stroke of the driving assembly (3) is installed on the support seat (1).

Images