A clamping device for producing a lock tongue and its production process

Abstract

The present invention discloses a clamping device for producing a lock tongue and a production process thereof. The clamping device for producing a lock tongue comprises a lock body, the lock body is provided with a lock tongue, and further comprises a clamping unit and a detection unit. The clamping unit is used to position and clamp the lock body so that the lock tongue is located in the detection unit. The detection unit comprises a telescopic unit and a pressure unit. The present invention provides a clamping device for producing a lock tongue and a production process thereof. After the lock body is loaded on the clamping unit, the lock tongue of the lock body is automatically tested for telescopicity. When the telescopic test is qualified, the load pressure test is automatically performed, so that each lock body undergoes the load pressure test. At the same time, the equipment runs automatically, eliminating the phenomenon of manual fraud, reducing labor costs, and improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of lock tongue production, in particular to a clamping device for lock tongue production and a production process thereof. Background Art

[0002] There are many types of doors on the current market, and doors are closely related to people's lives. Traditional doors, including anti-theft doors, wooden doors, etc., are equipped with locks to prevent thieves or other people from illegally breaking in. The locks are generally equipped with a lock tongue, which is usually controlled to control the closing and opening of the door by controlling the extension and contraction of the lock tongue.

[0003] The lock tongue is usually in the form of the public patent document CN108086793A. The lock tongue can be elastically extended and retracted forward and backward in the lock body. After the existing lock tongue is produced, it is manually pressed to identify whether the lock tongue is used normally.

[0004] The lock tongue also needs to be tested for normal use after pressure is applied to the side wall. This test is usually carried out on a random basis in the factory, and not every lock tongue is tested. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a clamping device for producing a lock tongue and a production process thereof.

[0006] Existing lock tongue extension and retraction tests are all performed by manual pressing. Since each person's pressing force is different, the standard for whether it is qualified is different. At the same time, not all lock tongues are tested for load pressure, which may result in unqualified load pressure in untested lock tongues.

[0007] To solve the above technical problems, the present invention is solved through the following technical solutions: a clamping device for lock tongue production, including a lock body, which is equipped with a lock tongue, and also includes a clamping unit and a detection unit. The clamping unit is used to position and clamp the lock body so that the lock tongue is located in the detection unit. The detection unit includes a telescopic unit and a pressure unit. The telescopic unit is arranged on the clamping unit, and includes a telescopic rod. Extending forward can push the lock tongue to retract into the lock body. The pressure unit is elastically slidably arranged on the clamping unit and is located above the lock tongue. The pressure unit is connected to the telescopic rod by a pulling unit. The telescopic rod is extended and retracted to complete the initial detection of the lock tongue. When the telescopic rod is retracted, the pressure unit is pulled down by the pulling unit. When the lock tongue is fully extended, the pressure unit elastically presses on the lock tongue to apply pressure.

[0008] Its beneficial effect is that after the lock tongue undergoes conventional telescopic detection, a load pressure detection is automatically performed, and after the lock tongue undergoes load pressure, a telescopic detection is performed again to determine whether the load pressure detection is qualified, so that the lock tongues after the detection meet the load pressure requirements.

[0009] In the above solution, preferably, the clamping unit includes a bottom plate and a pressure plate, the pressure plate can slide up and down to clamp the lock body, and the detection unit is arranged on the bottom plate.

[0010] In the above scheme, preferably, a pressure detection component is also provided at the front end of the telescopic rod, and a buffer component for protection is also provided at the front end of the pressure detection component, the buffer component is in direct contact with the lock tongue, the buffer component presses on the pressure detection component, and the pressure curve is recorded.

[0011] In the above solution, preferably, a switch member is provided at the front end of the buffer member, and when the switch member is pressed, the telescopic unit automatically records the extension distance of the telescopic rod.

[0012] In the above scheme, preferably, the pressure unit includes a pressure piece and a sliding rod, the pressure piece is provided with a pressure head for pressing on the lock tongue, the upper end of the sliding rod is provided with a guide plate, the elastic guide sliding is set in a guide groove opened on the pressure piece, the lower end of the sliding rod is elastically slidably set on the bottom plate, and the sliding rod is pulled to press the pressure piece downward through the elastic force.

[0013] In the above scheme, preferably, the pulling unit includes a pulling member and an adsorption member, the pulling member includes a pull rope and a magnetic adsorption member fixed on one end of the pull rope, the other end of the pull rope is connected to the guide plate of the sliding rod, the adsorption member is arranged on the front end of the telescopic rod, the telescopic rod extends to the front end, and the adsorption member can adsorb the magnetic adsorption member.

[0014] In the above solution, preferably, when the telescopic rod is retracted to the position recording point, the pressure head does not contact the lock tongue, and the telescopic rod continues to retract, and the pressure head presses on the lock tongue.

[0015] A lock tongue production process,

[0016] S1: Load the lock body onto the clamping unit by a robot or manually.

[0017] S2: The telescopic unit extends, the buffer contacts the lock tongue, and the position coordinate H is recorded.

[0018] S3: The telescopic unit continues to extend until it is fully extended, pushing the lock tongue to retract into the lock body, and then the telescopic unit begins to retract, and the pressure detection component records the pressure change value SR1 during the whole process.

[0019] S4: During the retraction process, the pressure unit is pulled to apply pressure to the lock tongue.

[0020] S5: The telescopic unit extends and retracts again, and the pressure detection component records the pressure change value SR2 during the whole process.

[0021] In the above scheme, preferably, if SR1 recorded during the retraction process of S3 is compared with SR stored in the device, and if they are basically consistent, it is determined that the retraction is qualified, and then S4 and S5 are performed.

[0022] In the above scheme, preferably, SR2 recorded during the retraction process of S5 is compared with SR stored in the device, and if they are basically consistent, it is determined that the load pressure test is qualified.

[0023] The beneficial effects of the present invention are as follows: the present invention provides a clamping device for lock tongue production and a production process thereof, after the lock body is loaded on the clamping unit, the lock tongue of the lock body is automatically tested for telescopic expansion, and when the telescopic expansion test is qualified, the load pressure test is automatically performed, so that each lock body is subjected to the load pressure test, and the equipment runs automatically at the same time, eliminating the phenomenon of manual fraud, while reducing labor costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the present invention.

[0025] Figure 2 It is a top view of the present invention.

[0026] Figure 3 It is a cross-sectional view of the present invention.

[0027] Figure 4 It is a side view of the present invention.

[0028] Figure 5 Schematic diagram of the detection unit of the present invention.

[0029] Figure 6 A schematic diagram of coordinates for drawing the SR curve of the present invention. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Example 1

[0031] See also Figure 1-Figure 6 A clamping device for producing a lock tongue comprises a lock body 1, a clamping unit 2, a detection unit 3 and a pulling unit 4. The lock body 1 is elastically slidingly limited and slidably configured with a lock tongue 11. The clamping unit 2 comprises a bottom plate 21 and a pressure plate 22. A positioning notch is provided on the bottom plate 21 for positioning the lock body 1. The bottom plate 21 and the pressure plate 22 are connected by a cylinder. The distance between the bottom plate 21 and the pressure plate 22 increases when the cylinder extends out. The lock body 1 is placed into the positioning notch by a robot or manually. The cylinder contracts the pressure plate 22 to press on the lock body 1, thereby clamping the lock body 1.

[0032] The detection unit 3 includes a telescopic unit 31 and a pressure unit 32. The telescopic unit 31 is an electric telescopic rod with a guide, which is fixedly arranged on the base plate 21. It is electrically controlled to be telescopic and retractable forward and backward. A telescopic rod 311 is arranged on the telescopic unit 31. An end plate is arranged on the front end surface of the telescopic rod 311. A buffer 313 is elastically and slidably arranged on the end plate. At the same time, a pressure detection component 312 is also arranged on the end plate. The pressure detection component 312 is located behind the buffer 313. When the buffer 313 is pressed, it elastically approaches the pressure detection component 312, and a switch component 314 is arranged on the front end surface of the buffer 313.

[0033] When the lock body 1 is clamped on the clamping unit 2, the lock tongue 11 is located in the detection unit 3. After the telescopic rod 311 extends forward a certain distance, the front end surface of the buffer 313 presses on the front end surface of the lock tongue 11, and the switch member 314 arranged on the front end surface of the buffer 313 is pressed, and then the central control system automatically records the position coordinate H. The elastic force of the buffer 313 is less than the elastic force of the lock tongue 11. Therefore, when the telescopic rod 311 continues to extend, the buffer 313 first touches the pressure detection member 312, and then pushes the lock tongue 11 to start moving. After the telescopic member 311 is fully extended, it begins to retract backward, and the lock tongue 11 also extends out together. During the movement, the pressure detection member 312 automatically and continuously records the pressure curve, which is recorded as SR1.

[0034] The pressure unit 32 includes a pressure piece 321 and a sliding rod 322. A pressure head 3211 is arranged in the middle position of the pressure piece 321. Guide grooves 3212 are opened on the side walls of the straight columns on both sides. The sliding rod 322 is slidably arranged on the straight column of the pressure head 3211, and a guide plate 3221 is arranged at the top of the sliding rod 322. The guide plate 3221 is guided and slidably arranged in the guide groove 3212. At the same time, the lower end of the sliding plate 322 is limitedly slidably arranged on the bottom plate 21. A first elastic piece and a second elastic piece are sleeved on the sliding rod 322. The two ends of the first elastic piece respectively touch the lower end surface of the guide plate 3221 and the bottom end surface of the guide groove 3212. One end of the second elastic piece touches the base 21 and the other end touches the bottom surface of the straight column of the pressure piece 321.

[0035] When the guide plate 3221 is pulled downward, the sliding rod 322 moves downward as a whole, and under the action of the first elastic member, the pressure member 321 is driven to move downward together. When the pressure head 3211 presses on the lock tongue 11, the pressure member 321 stops moving downward, and the sliding rod 322 continues to move downward, thereby compressing the first elastic member, thereby increasing the pressure of the pressure head 3211 on the lock tongue 11.

[0036] The pulling unit 4 includes a pulling member 41 and an adsorption member 42. The pulling member 41 includes a pull rope 411 and a magnetic adsorption member 412. One end of the pull rope 411 is fixedly connected to the guide plate 3221, and the other end extends downward into the bottom plate 21. After turning, it extends out from the bottom plate 21 and is fixedly connected to the magnetic adsorption member 412. The adsorption member 42 is an electromagnet, which is fixedly arranged on the end plate at the front end of the telescopic rod 311.

[0037] The magnetic attraction member 412 is located in front of the adsorption member 42 , and when the telescopic rod 311 is fully extended, the adsorption member 42 contacts the magnetic attraction member 412 .

[0038] When testing the lock tongue, a conventional telescopic test is first performed on the lock tongue, that is, the telescopic unit 31 extends forward to push the lock tongue 11 to retract into the lock body 1, and the telescopic unit 31 retracts again, and the lock tongue 11 recovers with it. During the telescopic process, the pressure detection component 312 automatically and continuously records the pressure curve SR1, and compares it with the SR stored in the central control system. If the curve trajectory basically coincides, it is judged that the telescopic test is qualified, and then proceeds to the next test. If there is a jamming phenomenon during the telescopic process, there is an obvious difference between the recorded pressure curve SR1 and SR, then it is judged that the telescopic test is unqualified, and the next test is not performed.

[0039] During the initial extension, the recorded position coordinate H serves as the starting point of the pressure recording during extension and the ending point of the pressure recording during retraction.

[0040] At the same time, when the central control system records the H position coordinates, the adsorption component 42 is energized to generate a magnetic attraction. When the telescopic rod 311 is extended to the farthest end, the adsorption component 42 contacts the magnetic attraction component 412 and adsorbs it. When the telescopic rod 311 is retracted to the H position, the lock tongue 11 is also restored to its initial position, while the pressure head 3211 is not in contact with the lock tongue 11. SR1 is compared with SR. If the curve trajectories basically coincide, the adsorption component 42 continues to be energized. As the telescopic rod 311 continues to retract, the pressure component 321 is pulled to press on the lock tongue 11. If there is an obvious difference between the recorded pressure curves SR1 and SR, the adsorption component 42 is controlled to be de-energized, and the magnetic attraction component 412 is released, and the pressure component 321 slides upward to return to its initial state.

[0041] When the telescopic test is qualified, the telescopic rod 311 continues to retract backward, and the pressure-applying member 321 is pulled by the pulling unit 4 to press on the lock tongue 11. Then the telescopic rod 311 continues to retract, and the pressure of the pressure head 3211 on the lock tongue 11 continues to increase. When the telescopic rod 311 is retracted to the initial position, the pressure of the pressure head 3211 on the lock tongue 11 is the maximum, and this state lasts for 8-20 seconds. The telescopic rod 311 starts to extend forward again, and when it reaches the H position, the pressure detection member 312 starts to record the pressure change again. The telescopic rod 311 extends to the maximum value again and then starts to retract. During this telescopic process, the pressure detection member 312 automatically and continuously records the pressure curve SR2.

[0042] When the telescopic rod 311 reaches the maximum position again, the central control system controls the adsorption member 42 to be powered off, and the adsorption member 42 and the magnetic member 412 are separated from each other. When the telescopic rod 311 is retracted, the magnetic member 412 remains stationary, that is, the pressure member 321 no longer moves downward.

[0043] If the recorded pressure curve SR2 is basically identical to SR, it means that the lock tongue can still extend and close normally after pressure loading, that is, the pressure loading test is qualified. If there is an obvious difference between the pressure curve SR2 and SR, it means that after pressure loading, the extension and retraction of the door lock is stuck, that is, the pressure loading test is unqualified.

[0044] Its working principle or usage is as follows:

[0045] When testing the lock tongue, first perform a conventional telescopic test on the lock tongue, that is, the telescopic unit 31 extends forward to push the lock tongue 11 to retract into the lock body 1, and the telescopic unit 31 retracts again, and the lock tongue 11 recovers with it. During the telescopic process, the pressure detection component 312 automatically and continuously records the pressure curve SR1, and compares it with the SR stored in the central control system. If the curve trajectory basically coincides, it is judged that the telescopic test is qualified, and then proceed to the next test. If there is a jamming phenomenon during the telescopic process, there is an obvious difference between the recorded pressure curve SR1 and SR, then the telescopic test is judged to be unqualified, and the next test is not performed.

[0046] When the telescopic test is qualified, the telescopic rod 311 continues to retract backward, and the pressure-applying member 321 is pulled by the pulling unit 4 to press on the lock tongue 11, and the pressure on the lock tongue 11 continues to increase. When the telescopic rod 311 is retracted to the initial position, the pressure of the pressure head 3211 on the lock tongue 11 is the maximum, and this state lasts for 8-20 seconds. The telescopic rod 311 starts to extend forward again, and when it reaches the H position, the pressure detection member 312 starts to record the pressure change again. The telescopic rod 311 extends to the maximum value again and then starts to retract. During this telescopic process, the pressure detection member 312 automatically and continuously records the pressure curve SR2.

[0047] When the telescopic rod 311 reaches the maximum position again, the central control system controls the adsorption member 42 to be powered off, and the adsorption member 42 and the magnetic member 412 are separated from each other. When the telescopic rod 311 is retracted, the magnetic member 412 remains stationary, that is, the pressure member 321 no longer moves downward.

[0048] If the recorded pressure curve SR2 is basically identical to SR, it means that the lock tongue can still extend and close normally after pressure loading, that is, the pressure loading test is qualified. If there is an obvious difference between the pressure curve SR2 and SR, it means that after pressure loading, the extension and retraction of the door lock is stuck, that is, the pressure loading test is unqualified. Example 2

[0049] Based on the first embodiment, the second embodiment has further improvements, specifically: Figure 1-Figure 6 By comparing SR1 and SR, the length of the lock tongue 11 can also be detected.

[0050] Since each detected H position of the lock body 1 is the actual H point of the lock tongue 11, and the extension and retraction speed of the telescopic rod 311 is fixed, and the lock body 1 is positioned and pressed, by comparing the duration of the curves SR1 and SR, it is possible to detect whether the initial extension length of the lock tongue is qualified.

[0051] See also Figure 1-Figure 6 A spraying device 5 is also provided below the buffer member 313, and a trademark spraying area 12 is left on the arc surface of the lock tongue 11. When the pressure test is performed, when the telescopic rod 311 is retracted to the H position, the telescopic rod 311 pauses to retract. If the pressure test is qualified, the spraying device 5 automatically sprays the trademark spraying area 12, that is, the qualified products are marked. If the pressure test is unqualified, the spraying operation is not performed. After staying for a certain period of time, the telescopic rod 311 continues to retract to the initial position.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clamping device for producing a lock tongue, comprising a lock body (1), the lock body (1) being provided with a lock tongue (11), characterized in that: It also comprises a clamping unit (2) and a detection unit (3), wherein the clamping unit (2) is used to position and clamp the lock body (1) so that the lock tongue (11) is located inside the detection unit (3); The detection unit (3) comprises a telescopic unit (31) and a pressure unit (32); the telescopic unit (31) is arranged on the clamping unit (3) and comprises a telescopic rod (311) which is extended forward and can push the lock tongue (11) to retract into the lock body (1); The pressure unit (32) is elastically slidably configured on the clamping unit (2) and is located above the locking tongue (11); the pressure unit (32) and the telescopic rod (311) are connected via a pulling unit (4); The telescopic rod (311) is extended and retracted to complete the initial detection of the lock tongue; When the telescopic rod (311) is retracted, the pressure unit (32) is pulled downward by the pulling unit (4), and when the lock tongue (11) is fully extended, the pressure unit (32) elastically presses on the lock tongue (11) to apply pressure; A pressure detection component (312) is also provided at the front end of the telescopic rod (311), and a buffer component (313) for protection is also provided at the front end of the pressure detection component (312); the buffer component (313) is in direct contact with the lock tongue (11); the buffer component (313) presses against the pressure detection component (312) to record a pressure curve.

2. A clamping device for producing a lock tongue according to claim 1, characterized in that: The clamping unit (2) comprises a bottom plate (21) and a pressure plate (22); the pressure plate (22) can slide up and down to clamp the lock body (1); and the detection unit (3) is arranged on the bottom plate (21).

3. A clamping device for producing a lock tongue according to claim 1, characterized in that: A switch member (314) is provided at the front end of the buffer member (313); when the switch member (314) is pressed, the telescopic unit (31) automatically records the extension distance of the telescopic rod (311).

4. A clamping device for producing a lock tongue according to claim 2, characterized in that: The pressure unit (32) comprises a pressure piece (321) and a sliding rod (322); the pressure piece (321) is provided with a pressure head (3211) for pressing on the lock tongue (11); the upper end of the sliding rod (322) is provided with a guide plate (3221); the guide plate is elastically slidably arranged in a guide groove (3212) provided on the pressure piece (321); the lower end of the sliding rod (322) is elastically slidably arranged on the bottom plate (21); the sliding rod (322) is pulled to press the pressure piece (321) downward by elastic force.

5. A clamping device for producing a lock tongue according to claim 4, characterized in that: The pulling unit comprises a pulling member (41) and an adsorption member (42); the pulling member (41) comprises a pull rope (411) and a magnetic adsorption member (412) fixed to one end of the pull rope (411); the other end of the pull rope (412) is connected to a guide plate (3221) of a sliding rod (322); the adsorption member (42) is arranged on the front end of the telescopic rod (311); the telescopic rod (322) extends to the front end; and the adsorption member (42) can adsorb the magnetic adsorption member (412).

6. A clamping device for producing a lock tongue according to claim 4, characterized in that: When the telescopic rod (311) is retracted to the position recording point, the pressure head (3211) does not contact the lock tongue (11); the telescopic rod (311) continues to retract, and the pressure head (3211) presses on the lock tongue (11).

7. A production process using a clamping device for producing a lock tongue as claimed in any one of claims 3 to 6, characterized in that: S1: Loading the lock body (1) onto the clamping unit (2) by a robot or manually; S2: the telescopic unit (31) is extended, the buffer member (313) contacts the locking tongue (11), and the position coordinate H is recorded; S3: the telescopic unit (31) continues to extend until it is fully extended, pushing the lock tongue (11) to retract into the lock body (1), and then the telescopic unit (31) begins to retract, and the pressure detection component (312) records the pressure change value SR1 during the whole process; S4: During the retraction process, the pressure applying unit (32) is pulled to apply pressure to the locking tongue (11); S5: The telescopic unit (31) is extended and retracted again, and the pressure detection component (312) records the pressure change value SR2 during the whole process.

8. The production process of a clamping device for producing a lock tongue according to claim 7, characterized in that: If the SR1 recorded during the retraction process of S3 is compared with the SR stored in the device and they are basically consistent, it is judged that the retraction is qualified, and then S4 and S5 are performed.

9. The production process of a clamping device for producing a lock tongue according to claim 7, characterized in that: The SR2 recorded during the retraction process of S5 is compared with the SR stored in the device. If they are basically consistent, the load pressure test is judged to be qualified.

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