Automatic assembly and testing machine for handle locks

Abstract

The present invention discloses an automatic assembly and detection machine for a handle lock, which belongs to the field of handle lock detection and comprises an assembly stepper motor, a handle and a lock seat. An assembly mechanism is provided on the top of the assembly stepper motor, and a detection mechanism is provided on the top of the assembly stepper motor. The assembly mechanism comprises a planetary drive box provided on the top of the assembly stepper motor, a sun gear fixed to the output shaft of the assembly stepper motor is provided inside the planetary drive box, a planetary gear is meshed with the outer side of the sun gear, a lock mounting wheel is provided on the top of the sun gear, and a handle mounting wheel is provided on the top of the planetary gear. After assembling the handle lock, the present invention detects the rotation of a disc, drops the handle into the handle rotation groove and rotates relative to the lock seat, and detects the retraction amount of the lock head at an angle at which the rotation can normally retract the lock head in the lock seat, and warns the lock head when it is not fully retracted, thereby timely detecting defective products such as loose handles and lock seats after torque changes, thereby improving the qualified rate of the handle lock.

Description

Technical Field

[0001] The present invention relates to the technical field of handle lock detection, and in particular to an automatic assembly detection machine for handle locks. Background Art

[0002] Handle locks are divided into split locks, connected locks, and three-pole quick-install locks. The products are relatively safe and are commonly used in entrance doors, room doors, residences, offices, hotels and other places. They are usually made of alloy materials.

[0003] After the handle lock is processed, the various components need to be assembled. During the assembly process, the fixing screws at the connection between the handle and the lock fixing seat need to be tightened with an electric screwdriver. However, the internal tightening parts of the electric screwdriver may become loose after long-term use, resulting in looseness when fixing the handle and the fixing seat, reducing the assembly qualification rate.

[0004] Therefore, we propose an automatic assembly and inspection machine for handle locks. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that when assembling the handle and the fixing base, looseness occurs due to the change in torque of the electric screwdriver, thereby reducing the assembly qualification rate, and to propose an automatic assembly detection machine for handle locks.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An automatic assembly and testing machine for a handle lock, comprising an assembly stepping motor, a handle and a lock seat, wherein an assembly mechanism is provided on the top of the assembly stepping motor, and a testing mechanism is provided on the top of the assembly stepping motor;

[0008] The assembly mechanism includes a planetary drive box arranged on the top of the assembly stepper motor, a sun gear fixed to the output shaft of the assembly stepper motor is arranged inside the planetary drive box, a planetary gear is meshed with the outer side of the sun gear, a lock mounting wheel is arranged on the top of the sun gear, a handle mounting wheel is arranged on the top of the planetary gear, and an assembly hydraulic cylinder is arranged on the top of the lock mounting wheel, and an electric screwdriver is arranged at the bottom of the assembly hydraulic cylinder;

[0009] The detection mechanism includes a detection disc arranged on the top of the planetary wheel, a detection telescopic rod is provided on the inner wall of the handle mounting wheel, a handle rotation groove is opened on the top of the detection disc, a detection closing plate is provided on the top of the detection disc, and a revolving closing disc is provided on the outer surface of the detection disc.

[0010] Preferably, the interior of the planetary drive box is provided with self-rotating teeth meshing with the planetary gears, the bottom of the planetary drive box is provided with a fixing column, and the bottom of the assembled stepping motor is provided with a stable base fixed to the fixing column.

[0011] Preferably, a rotating drive ring movably connected to the bottom of the handle mounting wheel is provided on the top of the planetary gear, and the planetary gears are symmetrically distributed on the outside of the sun gear.

[0012] Preferably, a lock mounting groove for engaging with the lock seat is provided inside the lock mounting wheel, and a handle mounting groove for engaging with the handle is provided inside the handle mounting wheel.

[0013] Preferably, the lock mounting wheel is configured as a "butterfly mark" shape, and the lock mounting wheel and the handle mounting wheel are slidingly connected.

[0014] Preferably, a sealed telescopic rod fixed to the top of the electric screwdriver is provided at the bottom of the assembly hydraulic cylinder, and a hydraulic regulating pipe is provided on the outside of the assembly hydraulic cylinder.

[0015] Preferably, a mounting closing plate is provided at the bottom of the lock mounting wheel, and the bottom of the mounting closing plate is slidably connected to the top of the handle mounting wheel.

[0016] Preferably, a detection contact is provided on the outside of the detection telescopic rod, and a detection alarm component is provided on the outside of the detection contact, and the detection alarm component consists of a buzzer and a warning light.

[0017] Preferably, the top of the detection disc is slidably connected to the bottom of the handle mounting wheel, and the inner wall of the handle rotating groove is provided with a detection placement groove which is clamped with the detection sealing plate.

[0018] Preferably, the bottom of the detection sealing plate is provided with a smooth curved surface, and the detection sealing plate is rotatably connected to the bottom of the handle mounting wheel.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In order to solve the problem of looseness caused by torque changes of electric screwdriver when assembling the handle and the fixed base, which reduces the qualified rate of assembly, a detection disc, a detection telescopic rod and a detection closing plate are provided to cooperate with each other. After the handle and the lock base are assembled through the assembly mechanism, the handle is dropped into the handle rotation slot and rotated relative to the lock base by rotating the detection disc. The retraction amount of the lock head is detected at the angle where the rotation can normally retract the lock head in the lock base. When the lock head is not fully retracted, a warning is issued, thereby timely detecting defective products such as looseness of the handle and the lock base after the torque change, thereby improving the qualified rate of the handle lock.

[0021] 2. By setting up a planetary drive box, a sun gear, a planetary gear and other devices to cooperate with each other, when assembling the handle lock, the handle and the lock seat are placed in the lock mounting wheel and the handle mounting wheel, and then the sun gear and the planetary gear rotate in the same direction at a differential speed so that the lock mounting groove and the handle mounting groove coincide, and the lock seat is dropped into the handle mounting groove. Then, the electric screwdriver is lowered by the assembly hydraulic cylinder to tighten the connection part to complete the assembly and fixing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an automatic assembly and testing machine for handle locks proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the lock mounting wheel, handle mounting wheel and detection disc of the automatic assembly and detection machine for handle locks proposed by the present invention;

[0024] Figure 3 It is a three-dimensional cross-sectional view of the lock mounting wheel, handle mounting wheel and detection disc structure of the present invention;

[0025] Figure 4 For the present invention Figure 1 A magnified view of the structure at center A;

[0026] Figure 5 This is a schematic diagram of the assembly mechanism for assembling a handle and a lock base of an automatic assembly and inspection machine for handle locks proposed by the present invention;

[0027] Figure 6 This is a schematic diagram of the assembly mechanism during handle inspection of an automatic assembly inspection machine for handle locks proposed by the present invention;

[0028] Figure 7 For the present invention Figure 1 A magnified view of the structure at B in the middle;

[0029] Figure 8 For the present invention Figure 2 Magnified view of the structure at center C.

[0030] In the figure: 1. Assemble the stepper motor; 2. Handle; 3. Lock seat; 4. Assembly mechanism; 41. Planetary drive box; 411. Fixed column; 42. Sun gear; 43. Planetary gear; 431. Rotating drive ring; 44. Lock mounting wheel; 441. Install the closing plate; 45. Handle mounting wheel; 46. Assemble the hydraulic cylinder; 461. Electric screwdriver; 462. Sealed telescopic rod; 5. Detection mechanism; 51. Detection disc; 52. Detection telescopic rod; 53. Handle rotation slot; 54. Detection closing plate; 55. Revolving closing disc. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Example

[0033] Reference Figure 1-8 , an automatic assembly and testing machine for a handle lock, comprising an assembly stepping motor 1, a handle 2 and a lock base 3, an assembly mechanism 4 is provided on the top of the assembly stepping motor 1, and a testing mechanism 5 is provided on the top of the assembly stepping motor 1;

[0034] Through the above technical solution, the handle 2 and the lock seat 3 are positioned before assembly and assembled after positioning through the assembly mechanism 4. Then, after the assembly is completed, the firmness of the connection between the two is tested by the detection mechanism 5, thereby completing the assembly and detection operations between the handle 2 and the lock seat 3.

[0035] The assembly mechanism 4 includes a planetary drive box 41 arranged on the top of the assembly stepper motor 1. A sun gear 42 fixed to the output shaft of the assembly stepper motor 1 is arranged inside the planetary drive box 41. A planetary gear 43 is meshed with the outer side of the sun gear 42. A lock mounting wheel 44 is arranged on the top of the sun gear 42. A handle mounting wheel 45 is arranged on the top of the planetary gear 43. A mounting closure plate 441 is arranged on the bottom of the lock mounting wheel 44. The bottom of the mounting closure plate 441 is slidably connected to the top of the handle mounting wheel 45. An assembly hydraulic cylinder 46 is arranged on the top of the lock mounting wheel 44. An electric screwdriver 461 is arranged on the bottom of the assembly hydraulic cylinder 46.

[0036] Through the above technical solution, the assembled stepper motor 1 is started, driving the sun gear 42 to rotate, causing the planetary gears 43 to revolve in the same direction and rotate at the same time, thereby driving the handle mounting wheel 45 and the lock mounting wheel 44 to rotate in the same direction at a differential speed. Then, when the two coincide, the assembled hydraulic cylinder 46 drives the electric screwdriver 461 to descend and tighten the connection between the handle 2 and the lock base 3;

[0037] Based on the above, when the mounting grooves of the handle mounting wheel 45 and the lock mounting wheel 44 overlap, the lock seat 3 falls from the lock mounting wheel 44 to the top of the handle mounting wheel 45 and is limited by the mounting groove in the handle mounting wheel 45, waiting for the electric screwdriver 461 to fix the two.

[0038] Based on the above, when the handle 2 and the lock seat 3 fall, since the rotation direction of the planetary gear 43 is consistent, when testing the firmness of the handle lock, the handle 2 inside the handle mounting wheel 45 is dropped separately, and when the lock mounting wheel 44, the handle mounting wheel 45 and the receiving groove of the detection disc 51 coincide with each other, the assembly hydraulic cylinder 46 drives the electric screwdriver 461 to descend to the inside of the lock mounting wheel 44 to fix the handle lock assembly;

[0039] Based on the above, the assembled stepping motor 1 rotates only during assembly and post-assembly securement inspection, and does not work during the tightening process.

[0040] Specifically, the planetary drive box 41 is provided with self-rotating teeth meshing with the planetary gear 43 , the bottom of the planetary drive box 41 is provided with a fixing column 411 , and the bottom of the assembled stepping motor 1 is provided with a stable base fixed to the fixing column 411 .

[0041] Through the above technical solution, the planetary drive box 41 is fixed to the stable base through the fixing column 411, ensuring stability when connecting the handle 2 and the lock base 3.

[0042] Specifically, a rotating drive ring 431 movably connected to the bottom of the handle mounting wheel 45 is provided on the top of the planetary gear 43, and the planetary gears 43 are symmetrically distributed on the outside of the sun gear 42. A lock mounting groove that is engaged with the lock seat 3 is provided inside the lock mounting wheel 44, and a handle mounting groove that is engaged with the handle 2 is provided inside the handle mounting wheel 45. The lock mounting wheel 44 is configured to be in a "butterfly mark" shape, and the lock mounting wheel 44 and the handle mounting wheel 45 are slidably connected.

[0043] Through the above technical solution, the handle mounting wheel 45 rotates in the same direction as the rotation differential of the sun gear 42 through the drive of the planetary gear 43. At the same time, when the lock mounting groove and the handle mounting groove coincide, the lock seat 3 falls from the lock mounting wheel 44 to the inside of the handle mounting wheel 45.

[0044] Specifically, a sealed telescopic rod 462 fixed to the top of the electric screwdriver 461 is provided at the bottom of the assembly hydraulic cylinder 46 , and a hydraulic regulating pipe is provided on the outside of the assembly hydraulic cylinder 46 .

[0045] Through the above technical solution, when the lock base 3 and the handle 2 are fixed, the electric screwdriver 461 is lowered by assembling the hydraulic cylinder 46 and the electric screwdriver 461 is started to tighten the connection part.

[0046] The detection mechanism 5 includes a detection disc 51 arranged on the top of the planetary gear 43, a detection telescopic rod 52 is provided on the inner wall of the handle mounting wheel 45, a detection contact is provided on the outer side of the detection telescopic rod 52, and a detection alarm component is provided on the outer side of the detection contact, and the detection alarm component is composed of a buzzer and a warning light. A handle rotating groove 53 is provided on the top of the detection disc 51, a detection closing plate 54 is provided on the top of the detection disc 51, and a revolving closing disc 55 is provided on the outer surface of the detection disc 51.

[0047] Through the above technical solution, after the lock base 3 and the handle 2 are assembled, the assembly stepper motor 1 is started again to drive the planetary gear 43 to rotate, and drive the detection disc 51 to rotate in the same direction as the rotation direction of the planetary gear 43, and the revolving closed disc 55 to rotate in the same direction as the revolution direction of the planetary gear 43, so that the handle 2 falls into the handle rotation groove 53, and the rotation of the detection disc 51 drives the handle 2 to rotate relative to the lock base 3. At the same time, the firmness of the connection between the handle 2 and the lock base 3 is indirectly detected by detecting the extension and contraction amount of the lock head in the lock base 3 by the telescopic rod 52.

[0048] Specifically, the top of the detection disc 51 is slidably connected to the bottom of the handle mounting wheel 45 , and the inner wall of the handle rotating groove 53 is provided with a detection placement groove that is engaged with the detection closing plate 54 .

[0049] Through the above technical solution, when the handle installation groove rotates to overlap with the handle rotation groove 53, the detection closing plate 54 rotates to the inside of the detection placement groove and drops the handle 2 into the inside of the handle rotation groove 53.

[0050] Specifically, the bottom of the detection sealing plate 54 is provided with a smooth curved surface, and the detection sealing plate 54 is rotatably connected to the bottom of the handle mounting wheel 45 .

[0051] Through the above technical solution, the present invention has two positioning processes. The first positioning process is the positioning process of the lock seat 3 to be installed on the top of the handle 2, and the second positioning process is the positioning process of the handle 2 falling into the handle rotation groove 53 and waiting for detection.

[0052] The first positioning process, such as Figure 2 and Figure 3 As shown, the bottom of the installation sealing plate 441 and the detection sealing plate 54 are both provided with a smooth curved surface. When the lock installation groove inside the lock installation wheel 44 coincides with the handle installation groove, the installation sealing plate 441 rotates downward, and the lock seat 3 falls to the top of the handle 2. This is the installation positioning process;

[0053] Furthermore, based on the above, an inclined groove is formed on the inner wall of the handle mounting wheel 45 and the detection disc 51, which is slidably connected to the bottom of the mounting sealing plate 441 and the detection sealing plate 54. When the lock mounting groove inside the lock mounting wheel 44 does not overlap with the handle mounting groove, the mounting sealing plate 441 is driven to rotate upward to support the lock seat 3 on top of it. This is the reset operation of the first positioning process;

[0054] The second positioning process, such as Figure 2 and Figure 3 As shown, when the handle mounting groove and the handle rotation groove 53 coincide with each other, the detection closing plate 54 rotates downward, causing the handle 2 to drop into the handle rotation groove 53. At this time, the lock seat 3 is inside the handle mounting wheel 45, and the rotation connection portion with the handle 2 is inside the detection disc 51. This is the detection and positioning process;

[0055] Furthermore, based on the above, while the planetary gear 43 drives the orbiting closed disc 55 to orbit, it also drives the detection disc 51 connected thereto to rotate on its own. A connecting column is provided between the orbiting closed disc 55 and the handle mounting wheel 45 to drive the handle mounting wheel 45 and the orbiting closed disc 55 to rotate synchronously. When the handle mounting groove and the handle rotation groove 53 do not overlap, the smooth curved surface provided on the bottom of the detection closing plate 54 is slidably connected to the top of the detection disc 51, supporting the detection closing plate 54 upward, thereby providing support for the next set of handles 2 to be inspected. This is the reset operation of the second positioning process.

[0056] Based on the above, further Figure 3 As shown, the handle rotation groove 53 provided inside the detection disc 51 is divided into two parts, one part is a circular groove and the other part is a rectangular groove. The top of the circular groove corresponds to the falling position of the lock seat 3 and is located at the center of the detection disc 51. The top of the rectangular groove corresponds to the falling position of the handle 2 and is located on the outside of the circular groove and is connected to the circular groove, so as to facilitate the rotation process of the handle 2 and provide rotation space for the rotating connection part between the handle 2 and the lock seat 3 without causing offset damage.

[0057] When assembling the handle lock of the present invention, the handle 2 is placed on top of the handle mounting wheel 45, and the lock base 3 is placed on top of the lock mounting wheel 44. Then, the assembly stepper motor 1 is started to drive the lock mounting wheel 44 and the handle mounting wheel 45 to rotate in the same direction at a differential speed. After the two wheels overlap, the assembly hydraulic cylinder 46 is started to lower the electric screwdriver 461 to fix the connection between the handle 2 and the lock base 3.

[0058] Further to the above, when the lock mounting wheel 44 and the handle mounting wheel 45 rotate to overlap with each other, the installation sealing plate 441 rotates into the inside of the handle mounting wheel 45 and then falls to the top of the handle 2 under the weight of the lock base 3. At this time, the assembly stepper motor 1 stops working and the electric screwdriver 461 is started to fix the handle 2 and the lock base 3.

[0059] Based on the above, a lock core is installed in advance on the inner wall of the lock seat 3. By rotating the handle 2, the lock seat 3 can be opened and the lock head can be retracted into the lock seat 3.

[0060] Based on the above, after the lock base 3 and the handle 2 are fixed, the assembly stepper motor 1 is started again to drive the revolution closed disc 55 to revolve and the detection disc 51 to rotate. Then, after the assembled handle lock overlaps with the handle rotation groove 53, the handle 2 is partially dropped into the handle rotation groove 53. Then, the rotation of the detection disc 51 drives the handle 2 to rotate. When the handle 2 rotates to the normal lock retraction position, the extension amount of the lock head is detected by the detection telescopic rod 52 to determine whether there is any looseness between the handle 2 and the lock base 3.

[0061] Furthermore, based on the above, when the connection between the handle 2 and the lock base 3 is loose, the transmission force of the handle 2 cannot be fully transmitted to the lock head. Therefore, when the handle 2 rotates to the angle at which the lock head can be retracted normally, the lock head cannot be fully retracted into the lock base 3. Based on this principle, whether there is any looseness between the handle 2 and the lock base 3 is detected;

[0062] Based on the above, further, when the lock head is not completely retracted into the lock base 3, the detection contact provided on the outside of the handle mounting wheel 45 is used to conduct the externally connected detection alarm component to complete the detection operation.

[0063] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An automatic assembly and testing machine for a handle lock, comprising an assembly stepper motor (1), a handle (2) and a lock seat (3), characterized in that: An assembly mechanism (4) is provided on the top of the assembled stepping motor (1), and a detection mechanism (5) is provided on the top of the assembled stepping motor (1); The assembly mechanism (4) includes a planetary drive box (41) arranged on the top of the assembly stepper motor (1), a sun gear (42) fixed to the output shaft of the assembly stepper motor (1) is arranged inside the planetary drive box (41), a planetary gear (43) is meshed on the outside of the sun gear (42), a lock mounting wheel (44) is arranged on the top of the sun gear (42), a handle mounting wheel (45) is arranged on the top of the planetary gear (43), a lock mounting groove for engaging with the lock seat (3) is provided inside the lock mounting wheel (44), a handle mounting groove for engaging with the handle (2) is provided inside the handle mounting wheel (45), an assembly hydraulic cylinder (46) is provided on the top of the lock mounting wheel (44), and an electric screwdriver (461) is provided on the bottom of the assembly hydraulic cylinder (46); The detection mechanism (5) includes a detection disc (51) arranged on the top of the planetary wheel (43), a detection telescopic rod (52) is provided on the inner wall of the handle mounting wheel (45), a handle rotating groove (53) is provided on the top of the detection disc (51), a detection closing plate (54) is provided on the top of the detection disc (51), a detection placement groove that is engaged with the detection closing plate (54) is provided on the inner wall of the handle rotating groove (53), and a revolving closing disc (55) is provided on the outer surface of the detection disc (51).

2. The automatic assembly and testing machine for handle locks according to claim 1, characterized in that: The planetary drive box (41) is provided with self-rotating teeth meshing with the planetary gears (43) inside, the bottom of the planetary drive box (41) is provided with a fixing column (411), and the bottom of the assembled stepping motor (1) is provided with a stable base fixed to the fixing column (411).

3. The automatic assembly and testing machine for handle locks according to claim 1, characterized in that: A rotating drive ring (431) movably connected to the bottom of the handle mounting wheel (45) is provided on the top of the planetary gear (43), and the planetary gears (43) are symmetrically distributed on the outside of the sun gear (42).

4. The automatic assembly and testing machine for handle locks according to claim 1, characterized in that: The lock mounting wheel (44) is configured in a "butterfly mark" shape, and the lock mounting wheel (44) and the handle mounting wheel (45) are slidably connected.

5. The automatic assembly and testing machine for handle locks according to claim 1, characterized in that: A sealed telescopic rod (462) fixed to the top of the electric screwdriver (461) is provided at the bottom of the assembly hydraulic cylinder (46), and a hydraulic regulating pipe is provided on the outside of the assembly hydraulic cylinder (46).

6. The automatic assembly and testing machine for handle locks according to claim 1, characterized in that: A mounting closing plate (441) is provided at the bottom of the lock mounting wheel (44), and the bottom of the mounting closing plate (441) is slidably connected to the top of the handle mounting wheel (45).

7. The automatic assembly and testing machine for handle locks according to claim 1, characterized in that: A detection contact is provided on the outside of the detection telescopic rod (52), and a detection alarm component is provided on the outside of the detection contact. The detection alarm component consists of a buzzer and a warning light.

8. The automatic assembly and testing machine for handle locks according to claim 1, characterized in that: The top of the detection disc (51) is slidably connected to the bottom of the handle mounting wheel (45).

9. The automatic assembly and testing machine for handle locks according to claim 1, characterized in that: The bottom of the detection sealing plate (54) is provided with a smooth curved surface, and the detection sealing plate (54) is rotatably connected to the bottom of the handle mounting wheel (45).

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