A lock assembly machine and lock tongue distance detection mechanism thereof

Abstract

The present invention relates to the field of lock processing, a lock tongue distance detection mechanism, comprising a detection bracket, an adjustment movable pair arranged on the detection bracket, and a lock beam hole detection assembly and a lock core hole detection assembly installed on the adjustment movable pair; the adjustment movable pair is provided with a transverse guide rail, and the lock beam hole detection assembly and the lock core hole detection assembly are slidably arranged on the transverse guide rail; the lock core hole detection assembly comprises a first detection rod with a limit hinge arrangement; the lock beam hole detection assembly comprises a measuring movable pair, a second detection rod and a magnetic scale, the magnetic scale comprises a fixedly arranged magnetic strip, and a reader arranged on the measuring movable pair; the second detection rod is limit hingedly arranged on the measuring movable pair; when the measuring movable pair moves longitudinally, the reader moves relative to the magnetic strip to obtain measurement data. The lock tongue distance detection mechanism can overcome the problems of unsmooth measurement, easy damage and inaccurate data caused by the position deviation of the punching holes on the lock.

Description

Technical Field

[0001] The invention relates to the field of lock processing, and in particular to a lock assembly machine and a lock tongue distance detection mechanism thereof. Background Art

[0002] As a traditional lock, the padlock has a metal stem in the shape of a ring or a letter "I" on the lock body, i.e., a "lock beam", so that the padlock is directly connected to the lock body through the lock beam to form a closed lock. The padlock includes a lock body 9 and a lock beam, such as Figure 1 As shown, the lock body is provided with a lock beam shallow hole 91, a lock beam deep hole 92, a lock tongue hole 93, a lock core hole 94, a vertical milling bullet hole 95 and a pin hole 96, wherein the lock beam shallow hole 91 and the lock core hole 94 are connected through the lock tongue hole 93, the lock core hole 94 is used to install the lock core, the lock tongue hole 93 is used to install the lock tongue 97 and the lock tongue spring 98, a lock tongue groove 971 is provided in the middle of the lock tongue, the lock core foot 991 on the end of the lock core 99 hooks the lock tongue groove 971 on the lock tongue, and the vertical milling bullet is inserted into the vertical milling bullet hole 95 of the lock body and the vertical milling bullet groove on the lock core to clamp the lock core and prevent it from falling out. The two ends of the lock beam are respectively installed in the lock beam shallow hole 91 and the lock beam deep hole 92, and a buckle relationship is formed between the lock tongue and the end of the lock beam in the lock beam shallow hole 91. When the lock is used, a key is used to control the rotation of the lock core to control the movement of the lock tongue, thereby realizing the unlocking and locking actions. During installation, the installation of the lock beam is the last step in the assembly of the padlock. The previous assembly actions include installing the lock tongue spring, the lock tongue, the lock core and the vertical milling spring. At present, in the existing assembly production of padlocks, the lock tongue and the lock tongue spring are first manually placed in the lock tongue hole 93 of the lock, and the vertical milling spring is used to position and install them, and then the lock tongue and other accessories are continued to be installed on the lock assembly machine. In the traditional process, the lock tongue and the lock tongue spring are manually assembled, and the assembly efficiency is low.

[0003] There is an automatic lock tongue assembly machine as described in the publication text of the Chinese invention patent application with application number "CN201710587057X", which includes a lock tongue hole positioning mechanism, a lock tongue and lock tongue spring assembly mechanism, a vertical milling hole positioning mechanism and a vertical milling spring assembly mechanism. The lock is installed in a lock body fixture and is driven by a turntable to pass through the above four mechanisms in sequence; in the lock tongue hole positioning mechanism, the positioning component of the workstation positions and aligns the lock tongue hole of the lock, and then the driving component acts to drive the lock body fixture to clamp the lock; in the lock tongue and lock tongue spring assembly mechanism, the lock tongue and lock tongue spring are installed; in the vertical milling hole positioning mechanism, the positioning component of the workstation again positions and aligns the lock tongue hole of the lock, and then the driving component acts to drive the lock body fixture to clamp the lock; in the vertical milling spring assembly mechanism, the vertical milling spring is installed, and the lock tongue can be prevented from falling off after the vertical milling spring is installed. Through the above-mentioned automatic assembly machine for the lock tongue, on the one hand, high-precision assembly of the lock tongue can be achieved, improving the assembly quality; on the other hand, efficient assembly of the lock tongue can be achieved, improving the assembly efficiency. However, due to the process and the quality of the lock body, there will be errors in the distance between the shallow hole of the lock beam and the lock core hole. Therefore, in order to ensure the quality of the lock during the installation process, the length of the lock tongue must also be changed accordingly. However, in the above-mentioned disclosed automatic assembly machine for the lock tongue, this error is not overcome, that is, its solution is to assume that the distance between the shallow hole of the lock beam and the lock core hole is always within the standard range.

[0004] Based on the above-mentioned deficiencies in the prior art, the applicant recently submitted a Chinese invention patent application with application number "2019101425389". In the prior application, a lock assembly machine is provided. The lock assembly machine has measured the hole opening error on the lock body during assembly and assembled lock tongues of different specifications, thereby ensuring that the lock tongue installed in the lock body can be used for the lock body, and the product error rate is low. The specific implementation structure of the lock tongue distance detection mechanism is provided in the prior application scheme. Based on the above technical scheme, this application takes into account that the accuracy of the holes punched on the lock is not high and the hole position is prone to deviation in the current padlock processing, so a new structure of the lock tongue distance detection mechanism is provided. Summary of the invention

[0005] In order to solve the above problems, the first purpose of the present invention is to provide a lock tongue distance detection mechanism, which can overcome the problems of measurement irregularity, easy damage and inaccurate data caused by the position deviation of the punching holes on the lock. The second purpose of the present invention is to provide a lock assembly machine, which has the above lock tongue distance detection mechanism.

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

[0007] A lock tongue distance detection mechanism comprises a detection bracket, an adjustment movable pair arranged on the detection bracket, and a lock beam hole detection component and a lock core hole detection component installed on the adjustment movable pair; the characteristics are: a transverse guide rail is arranged on the adjustment movable pair, the lock beam hole detection component and the lock core hole detection component are slidably arranged on the transverse guide rail, and are respectively located on both sides of a lock body fixture corresponding to a lock tongue distance detection station; the lock core hole detection component comprises a first detection rod which is limitedly hingedly arranged, the first detection rod can be limitedly swung along the hinge point, and when the lock core hole detection component moves It can be inserted into the lock core hole of the lock body; the lock beam hole detection assembly includes a measuring movable pair, a second detection rod and a magnetic scale, the magnetic scale includes a fixedly set magnetic strip, and a reader arranged on the measuring movable pair; the second detection rod is limitedly hinged on the measuring movable pair, and the second detection rod can be limitedly swung along the hinge point; when the lock beam hole detection assembly moves laterally, the second detection rod can be inserted into the shallow hole of the lock beam of the lock body; when the measuring movable pair moves longitudinally, the reader moves relative to the magnetic strip to obtain measurement data; the detection ends of the first detection rod and the second detection rod are both conical.

[0008] Preferably, the adjustment movable pair includes a first longitudinal guide rail and a first longitudinal slider fixed on the detection bracket; a first limit block is fixed at the lower end of the first longitudinal guide rail, and the first longitudinal slider is movably arranged on the first longitudinal guide rail above the first limit block; an adjustment bolt is inserted into the first limit block, and a support spring is sleeved on the adjustment bolt above the first limit block, and the upper end of the support spring is against the lower end of the first longitudinal slider. When the above technical solution is implemented, the first detection rod and the second detection rod are respectively located below the standard range of the lock core hole and the lock beam shallow hole of the lock, such as the first detection rod is located 0.5mm below the standard range of the lock core hole of the lock. When the lock tongue distance detection mechanism is in operation, the lock core hole detection assembly first moves laterally to send the first detection rod into the lock core hole of the lock; since the detection end of the first detection rod is conical and has a guiding function, the lock core hole detection assembly, the transverse guide rail and the lock beam hole detection assembly will be driven to be lifted to a certain height with the first longitudinal slider as the platform during the process of the first detection rod extending into the lock core hole, and this will be used as a measurement reference point; the support spring provided is beneficial to reduce the resistance that needs to be overcome (such as the gravity of the above-mentioned mechanisms) during the above-mentioned lifting process, thereby making the process of the first detection rod extending into the lock core hole smoother and causing less wear during the process.

[0009] Preferably, the lock core hole detection assembly also includes a first transverse slider arranged on the transverse guide rail, a first base arranged on the first transverse slider, and a first swing rod with an end limit hinged on the first base; the first detection rod is arranged on the swing end of the first swing rod; a first base groove is arranged in the first base, and the upper end pin of the first swing rod is hinged in the first base groove; a gap is left between the upper end of the first swing rod and the bottom surface of the first base groove, and the first swing rod on the upper and lower sides of the pin is penetrated with a limit bolt, and the limit bolt is in the gap to limit the swing amplitude of the first swing rod. In the above scheme, the first transverse slider is driven by the lock core hole detection cylinder to move horizontally along the transverse guide rail, so that the first detection rod can extend into or out of the lock core hole; further, the installation structure between the first swing rod and the first base groove can allow the first swing rod to swing slightly with a limit amplitude along the pin as the center, and the swing is mainly to reduce the small angle deviation of the lock core hole in the lateral direction.

[0010] Preferably, the lock beam hole detection assembly also includes a second transverse slider arranged on the transverse guide rail, the measuring movable pair is arranged on the second transverse slider, and the measuring movable pair includes a second longitudinal guide rail and a second longitudinal slider fixed on the second transverse slider; a second limit block is fixed at the lower end of the second longitudinal guide rail, and the second longitudinal slider is movably arranged on the second longitudinal guide rail above the second limit block; an adjusting bolt is inserted into the second limit block, and a supporting spring is sleeved on the adjusting bolt above the second limit block, and the upper end of the supporting spring abuts against the lower end of the second longitudinal slider. In the above technical scheme, the second transverse slider is driven by the lock beam hole detection cylinder to move horizontally along the transverse guide rail, so that the second detection rod can extend into or out of the lock beam shallow hole; because the detection end of the second detection rod is conical, when the second detection rod extends into the lock beam shallow hole, it drives the second longitudinal slider to slide upward, and further makes the reader move relative to the magnetic strip to obtain measurement data; and the adjusting bolt is used to adjust the initial height of the second longitudinal slider.

[0011] Preferably, the measuring movable pair is provided with a second base, and a second swing rod is limitedly hinged in the second base; a second base groove is provided in the second base, and the upper end pin of the second swing rod is hingedly arranged in the second base groove; a gap is left between the upper end of the second swing rod and the bottom surface of the second base groove, and the second swing rods on the upper and lower sides of the pin are pierced with limit bolts, and the limit bolts are in the gap to limit the swing amplitude of the second swing rod; the second detection rod is arranged on the swing end of the second swing rod. Similar to the installation structure between the first swing rod and the first base groove, the installation structure between the second swing rod and the second base groove can allow the first swing rod to swing slightly with the pin as the center, and the swing is mainly to reduce the small angle deviation of the lock core hole in the lateral direction.

[0012] A lock assembly machine, characterized by comprising a lock tongue distance detection mechanism as described in any one of the above.

[0013] Preferably, the lock assembly machine comprises a frame, and a clamping turntable mechanism, a lock body feeding mechanism, a lock tongue distance detection mechanism, a lock tongue spring assembly mechanism, a lock tongue assembly mechanism, a lock core assembly mechanism and a lock body discharging mechanism arranged on the frame; the clamping turntable mechanism comprises a turntable, and a lock body clamp arranged on the turntable, the lock body clamp is used to clamp and fix the lock body; during the rotation of the turntable, the lock body clamp passes through the lock body feeding station, the lock tongue distance detection station, the lock tongue spring assembly station, the lock tongue assembly station, the lock core assembly station and the lock body discharging station in sequence; The above-mentioned lock body loading station, lock tongue distance detection station, lock tongue spring assembly station, lock tongue assembly station, lock core assembly station and lock body discharging station respectively correspond to the lock body loading mechanism, lock tongue distance detection mechanism, lock tongue spring assembly mechanism, lock tongue assembly mechanism, lock core assembly mechanism and lock body discharging mechanism; the lock tongue distance detection mechanism is used to measure the distance between the lock core hole and the lock beam hole on the lock body, so as to determine the required length of the lock tongue; the lock tongue assembly mechanism selects a lock tongue of appropriate length according to the detection data of the above-mentioned lock tongue distance detection mechanism, and installs it into the lock tongue hole.

[0014] Preferably, the lock tongue assembly mechanism comprises a lock tongue loading component and a lock tongue assembly device; the lock tongue loading component comprises a lock tongue discharging plate, a lock tongue material tube, a lock tongue feeding plate and a lock tongue feeding cylinder, a lock tongue channel is provided in the lock tongue feeding plate, the inlet end of the lock tongue channel is communicated with the end portion of the lock tongue material tube, and an elastic baffle is provided on the outlet end of the lock tongue channel; the lock tongue channel is divided into a first channel section, a second channel section and a third channel section from the inlet end to the outlet end, wherein the cross section of the first channel section is a circle larger than the cross section of the lock tongue, the cross section of the third channel section is a circle adapted to the cross section of the lock tongue, and the upper end of the third channel section of the lock tongue channel is provided with a notch communicated with the same; the cross section of the second channel section is The surface is rectangular, and the circular cross-section of the third channel section is the inscribed circle of the rectangular cross-section of the second channel section; the lock tongue feeding cylinder is arranged on the lock tongue feeding plate, and a lock tongue pushing component is provided on the output end of the lock tongue feeding cylinder, and the lock tongue pushing component comprises a fixed plate fixed on the output end of the lock tongue feeding cylinder, and a movable push plate hinged on the fixed plate, a tip is provided on the movable end of the movable push plate for being inserted into the lock tongue groove, and the tip is provided with an inclined surface on the side close to the hinged end; when pushing, the tip of the movable push plate in the lock tongue pushing component is inserted into the lock tongue groove of the second lock tongue at the end, and the lock tongue feeding cylinder acts on the second lock tongue at the end when outputting, and pushes the lock tongue at the end into the lock tongue assembly device.

[0015] Preferably, the lock tongue assembly device includes a transverse moving pair, a longitudinal moving pair arranged on the transverse moving pair, a rotating pair arranged on the longitudinal moving pair, and a lock tongue assembly pair arranged on the rotating pair; the lock tongue assembly pair includes a lock tongue clamp, a lock tongue assembly cylinder and a baffle pressure plate, the lock tongue clamp is provided with a lock tongue assembly port, the output end of the lock tongue assembly cylinder is aligned with the lock tongue assembly port, and the baffle pressure plate is arranged on one side of the lock tongue clamp; when it is necessary to receive the lock tongue at the outlet end of the lock tongue channel, the rotating pair adjusts the lock tongue assembly pair to a horizontal position, the baffle pressure plate is located below the lock tongue clamp, the transverse moving pair moves to make the lock tongue assembly port close to the lock tongue channel, and the longitudinal moving pair moves to make the baffle pressure plate press down the elastic baffle at the outlet end of the lock tongue channel , so that the elastic baffle will not intercept the movement of the lock tongue, and the lock tongue assembly port on the lock tongue clamp is aligned with the outlet end of the lock tongue channel; when the lock tongue needs to be installed into the lock tongue hole, the longitudinal moving pair moves so that the baffle pressure plate moves the elastic baffle at the outlet end of the lock tongue channel back to its position, so that the elastic baffle blocks the lock tongue in the third channel, the transverse moving pair moves to separate the lock tongue assembly port from the lock tongue channel, the rotating pair adjusts the lock tongue assembly pair to a vertical position, and the transverse moving pair moves so that the lock tongue clamp is directly above the lock body clamp, the lock tongue assembly port on the lock tongue clamp corresponds to the lock tongue hole on the lock body, the longitudinal moving pair moves downward so that the lock tongue assembly port on the lock tongue clamp is close to the lock tongue hole on the lock body, and the lock tongue assembly cylinder moves to install the lock tongue in the lock tongue assembly port into the lock tongue hole of the lock body.

[0016] The present invention adopts the above-mentioned technical solution, which relates to a lock tongue distance detection mechanism, and a lock assembly machine having the lock tongue distance detection mechanism. In the lock tongue distance detection mechanism, the lock beam hole detection assembly and the lock core hole detection assembly are both arranged on a transverse guide rail, and the transverse guide rail is arranged on an adjustment movable pair. In this solution, the detection ends of the first detection rod in the lock core hole detection assembly and the second detection rod in the lock beam hole detection assembly are both conical, and through the guidance of the conical part, the first detection rod and the second detection rod can be adjusted during the process of extending into the corresponding hole position to achieve center alignment; and the adjustment movable pair set in this solution is used to overcome the deviation of the hole position on the lock in the longitudinal direction, and the first detection rod and the second detection rod both adopt a limit hinge setting scheme to overcome the deviation of the hole position on the lock in the transverse direction. When the above-mentioned lock tongue distance detection mechanism is in operation, the lock core hole detection assembly first moves horizontally to send the first detection rod into the lock core hole of the lock. When the first detection rod extends into the lock core hole, it will drive the lock core hole detection assembly, the horizontal guide rail and the lock beam hole detection assembly to raise a certain height with the adjustment moving pair as the platform, and use this as the measurement reference point; then, the lock beam hole detection assembly moves horizontally to send the second detection rod into the lock beam shallow hole of the lock. When the second detection rod extends into the lock beam shallow hole, it drives the measurement moving pair and the reader thereon to move. The reader moves relative to the magnetic strip to obtain measurement data, thereby calculating the lock tongue hole length between the lock core hole and the lock beam shallow hole, and further determining the lock tongue length to be installed. Through the above description, the lock tongue distance detection mechanism can overcome the problems of measurement irregularity, easy damage and inaccurate data caused by the deviation of the punching position on the lock. In addition, compared with the lock tongue distance detection mechanism used in the prior application, it does not require a power structure in the longitudinal direction (i.e., the servo motor and screw structure in the prior application), and has the advantages of simplified structure and reduced cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the lock body structure of an existing padlock.

[0018] Figure 2 This is a schematic diagram of the planar structure of the lock assembly machine.

[0019] Figure 3 It is a schematic diagram of the assembly of the lock body fixture and the unlocking component.

[0020] Figure 4 It is a structural schematic diagram of a device for processing burrs on a lock bolt hole.

[0021] Figure 5 It is a side structural schematic diagram of the lock tongue distance detection mechanism.

[0022] Figure 6 It is a front structural schematic diagram of the lock tongue distance detection mechanism.

[0023] Figure 7This is a schematic diagram of the second structure of the lock tongue spring feeding assembly.

[0024] Figure 8 It is a structural schematic diagram of the lock tongue assembly mechanism.

[0025] Fig. 9 It is a cross-sectional schematic diagram of the first channel section.

[0026] Fig.10 It is a cross-sectional schematic diagram of the second channel section.

[0027] Fig.11 It is a cross-sectional schematic diagram of the third channel section.

[0028] Fig.12 This is a schematic diagram of the first structure of the lock core clamp.

[0029] Fig.13 It is a schematic diagram of the second structure of the lock core clamp.

[0030] Fig.14 This is an assembly diagram of the lock cylinder positioning component. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] like Figures 2 to 14 The lock assembly machine shown includes a frame 1, and a clamping turntable mechanism, a lock body feeding mechanism, a lock tongue distance detection mechanism, a lock tongue spring assembly mechanism, a lock tongue assembly mechanism, a lock core assembly mechanism and a lock body discharging mechanism arranged on the frame 1. Among them, the clamping turntable mechanism includes a turntable 11, and a lock body clamp 12 arranged on the turntable 11, and the lock body clamp 12 is used to clamp and fix the lock body; during the rotation of the turntable 11, the lock body clamp 12 passes through the lock body loading station a, the lock tongue distance detection station b, the lock tongue spring assembly station c, the lock tongue assembly station d, the lock core assembly station e and the lock body discharging station f in sequence; the above-mentioned lock body loading station a, the lock tongue distance detection station b, the lock tongue spring assembly station c, the lock tongue assembly station d, the lock core assembly station e and the lock body discharging station f correspond to the lock body loading mechanism, the lock tongue distance detection mechanism, the lock tongue spring assembly mechanism, the lock tongue assembly mechanism, the lock core assembly mechanism and the lock body discharging mechanism respectively. The lock body feeding mechanism is used to feed the lock body into the lock body fixture 12; the lock tongue distance detection mechanism is used to measure the distance between the lock core hole 94 and the lock beam hole on the lock body, so as to determine the required length of the lock tongue; the lock tongue spring assembly mechanism is used to install the lock tongue spring into the lock tongue hole 93 of the lock body; the lock tongue assembly mechanism selects a lock tongue of appropriate length according to the detection data of the above-mentioned lock tongue distance detection mechanism, and installs it into the lock tongue hole 93; the lock core assembly mechanism is used to install the lock core into the lock core hole 94 of the lock body, and make the lock core foot 991 on the end face of the lock core engage with the lock tongue groove 971 on the lock tongue, and pass the loading milling spring to position the lock core to complete the lock core assembly; the lock body discharging mechanism is used to send out the lock body after the above-mentioned assembly to obtain a semi-finished lock body.

[0037] Based on the functional description of each mechanism above, the specific structure of each mechanism is recorded as follows.

[0038] like Figures 2-3 The mechanism for clamping the turntable 11 shown, in addition to the turntable 11 and the lock body clamp 12 mentioned above, also includes a driving component for driving the turntable 11 to rotate, and a positioning component for positioning the turntable 11 . The lock body loading station a, lock tongue distance detection station b, lock tongue spring assembly station c, lock tongue assembly station d, lock core assembly station e and lock body discharging station f are regularly arranged along the center of the turntable 11, that is, the center angle between two adjacent stations and the center of the turntable 11 is 60°, and the edge of the turntable 11 is also regularly provided with six groups of lock body clamps 12 at the same center angle, that is, the center angle between two adjacent groups of lock body clamps 12 is 60°. Of course, if three, two or twelve groups of lock body clamps 12 are selected, it is also possible, but relatively speaking, it is most preferred to select lock body clamps 12 equal to the number of the above-mentioned mechanisms. If the number of lock body clamps 12 is less than the number of mechanisms, the assembly efficiency is not high, and if the number of lock body clamps 12 is greater than the number of mechanisms, the assembly efficiency will not be improved, but the cost will increase. The above-mentioned lock body clamp 12 is used to clamp and fix the lock body. One implementation scheme of the lock body clamp 12 is as follows Figure 3As shown, the lock body clamp 12 includes a fixed seat 121 and a slide bar 122 arranged on the turntable 11, and a movable seat 123 slidably arranged on the slide bar 122, and a reset spring 124 and an adjustment assembly for driving the movable seat 123 to move. The rod body of the slide bar 122 is oriented toward the fixed seat 121, and a clamp opening is formed between the movable seat 123 and the fixed seat 121. One side of the clamp opening is the entrance end of the clamp opening, and the other side of the clamp opening is provided with a limiting component 126, such as a limiting screw. The reset spring 124 is sleeved on the slide bar 122 between the movable seat 123 and the fixed seat 121. The adjustment assembly includes a fixed plate 127 fixed on the outer rod body of the movable seat 123, a movable plate 128 connected below the fixed plate 127, and an interference plate 129 fixed on the movable plate 128. A compression spring 120 is provided between the fixed plate 127 and the movable plate 128, and the plate body of the interference plate 129 is located between the movable seat 123 and the fixed plate 127, and the upper end of the interference plate 129 cooperates with the inclined surface of the movable seat 123. A first clamping block is provided on the fixed seat 121, and a second clamping block is provided on the movable seat 123. The first clamping block and the second clamping block are both provided with arc-shaped clamping openings, and the arc-shaped clamping openings of the first clamping block and the second clamping block are horizontally opposite. The lock body clamp 12 changes the clamping method of the traditional clamp, and the longitudinal force on the movable plate 128 in the clamp assembly can be converted into the lateral active force of the movable seat 123, thereby simplifying the driving method of the clamp assembly. During the rotation of the above-mentioned turntable 11, the lock body clamp 12 needs to be in an open state when passing through the lock body feeding mechanism and the lock body unloading mechanism, and needs to be in a locked state when passing through the lock tongue distance detection mechanism, the lock tongue spring assembly mechanism, the lock tongue assembly mechanism and the lock core assembly mechanism. In the above scheme, only under the action of the compression spring 120, the compression spring 120 pulls the interference plate 129 downward, thereby pressing the movable seat 123 close to the fixed seat 121, and the fixture opening becomes smaller and is in a locked state. When the lock body fixture 12 needs to be in an open state for loading and unloading, it is necessary to act on the movable plate 128 through external force to raise the interference plate 129 to a high degree, and the movable seat 123 is away from the fixed seat 121 under the action of the reset spring 124, and the fixture opening becomes larger and is in an open state. In this embodiment, a set of unlocking components is provided at the lock body loading station a and the lock body unloading station f, and the output end of the unlocking component acts on the movable plate 128. Specifically, the unlocking component can be an unlocking cylinder 13 arranged on the frame 1, and the unlocking cylinder is located below the turntable 11. When the unlocking cylinder 13 is output, it pushes the movable plate 128 upward, and the unlocking can be achieved through the above mechanism.

[0039] In order to facilitate the installation of one or more of the lock body feeding mechanism, the lock tongue distance detection mechanism, the lock tongue spring assembly mechanism, the lock tongue assembly mechanism, the lock core assembly mechanism and the lock body discharging mechanism, a support 14 is fixed on the frame 1, and the support 14 is located at the center of the turntable 11. The turntable 11 rotates relative to the support 14. In practice, the turntable 11 can be sleeved on the outside of the support 14 by using bearings and other components. The turntable 11 adopts equal angle intermittent rotation, so the driving component preferably adopts a stepping motor and drives the turntable 11 to rotate through a belt. Further, in order to ensure that the turntable 11 does not deflect when assembling at each station, it is necessary to position the turntable 11 through a positioning component so that the turntable 11 is maintained in a positioned state. In this embodiment, a positioning notch 15 is provided on the turntable 11 between two adjacent groups of lock body fixtures 12, and adjacent positioning notches 15 are also arranged on the turntable 11 using a 60° angle rule. The positioning component includes a positioning cylinder 16 fixed on the frame 1, and a positioning block 17 arranged on the output end of the positioning cylinder 16. Every time the turntable 11 rotates 60°, the positioning cylinder 16 will send the positioning block 17 into the corresponding positioning notch 15 to realize the positioning of the turntable 11. During the positioning period, each mechanism works separately. After completion, the positioning cylinder 16 sends the positioning block 17 out of the positioning notch 15, and the turntable 11 continues to rotate 60° under the action of the stepper motor before positioning.

[0040] As 2 and Figure 4The lock body feeding mechanism shown includes a feeding bracket 21, a feeding slide rail 22 and a feeding assembly arranged on the feeding bracket 21. When the turntable 11 on the clamping turntable 11 mechanism rotates to a suitable position, the end of the feeding slide rail 22 corresponds to the entrance end of the fixture opening. After the lock body enters the feeding slide rail 22, the feeding assembly pushes the lock body into the fixture opening, and because a limiting component is provided in the fixture opening, the position of the lock body in the fixture opening is specific, that is, one side of the lock body is against the limiting component. The feeding assembly is used to push the lock body along the feeding slide rail 22, and its output direction is consistent with the track direction of the feeding slide rail 22. The feeding assembly in this embodiment includes a feeding cylinder 24, and a feeding slider 25 arranged on the output shaft of the feeding cylinder 24. In addition, since the bolt hole 93 on the lock body will produce burrs on the hole wall after the hole is opened, it will affect the operation of the bolt and the bolt spring, so the bolt hole 93 needs to be deburred before assembling the bolt and the bolt spring. In this embodiment, a bolt hole burr processing device is also provided on the lock body feeding station a, and the bolt hole burr processing device includes a jack cylinder 26 and a jack rod 27 arranged on the output end of the jack cylinder 26. The jack cylinder 26 is arranged just above the lock body fixture 12 corresponding to the lock body feeding station a, and can be fixed on the pillar 14. The output end of the jack cylinder 26 is vertically downward, and the jack rod 27 corresponds to the bolt hole 93 on the lock body. The jack cylinder 26 drives the jack rod 27 to enter the bolt hole 93, and the jack rod 27 removes the burrs on the wall of the bolt hole 93. The jack rod 27 is a hollow rod body and is connected to an air source pipe. After the jacking process is completed, gas is introduced into the jack rod 27 for blowing to remove the burrs caused by grinding.

[0041] During the punching process of the lock body, there will be an error in the distance between the shallow hole 91 of the lock beam and the lock core hole due to the process and the quality of the lock body. Therefore, in order to ensure the quality of the lock during the installation process, the length of the lock tongue must also change accordingly. The lock tongue distance detection mechanism in this device is used to determine the required length of the lock tongue installed in the lock body. In the Chinese invention patent application with application number "2019101425389", a lock assembly machine is provided. The lock assembly machine has measured the hole opening error on the lock body during assembly and assembled lock tongues of different specifications, thereby ensuring that the lock tongue installed in the lock body can be used for the lock body, and the product error rate is low. On this basis, the applicant took into account that in the current padlock processing, the accuracy of the holes punched on the lock is not high, and the hole position is prone to deviations, so the following lock tongue distance detection mechanism is adopted. Figures 5-6A lock tongue distance detection mechanism shown in the figure includes a detection bracket 31, an adjustment movable pair arranged on the detection bracket 31, and a lock beam hole detection assembly 33 and a lock core hole detection assembly 34 installed on the adjustment movable pair. The adjustment movable pair is provided with a transverse guide rail 32, and the lock beam hole detection assembly 33 and the lock core hole detection assembly 34 are slidably arranged on the transverse guide rail 32, and are respectively located on both sides of the lock body fixture corresponding to the lock tongue distance detection station. The lock core hole detection assembly 34 includes a first detection rod 341 that is limitedly hinged and arranged, and the first detection rod 341 can be limitedly swung along the hinge point, and the lock core hole detection assembly 34 can extend into the lock core hole of the lock body when moving. The lock beam hole detection assembly 33 includes a measuring movable pair, a second detection rod 331 and a magnetic scale, and the magnetic scale includes a fixedly arranged magnetic strip 332, and a reader 333 arranged on the measuring movable pair. The second detection rod 331 is limitedly hinged and arranged on the measuring movable pair, and the second detection rod 331 can be limitedly swung along the hinge point. When the lock beam hole detection assembly 33 moves horizontally, the second detection rod 331 can extend into the shallow hole of the lock beam of the lock body. When the measuring movable pair moves longitudinally, the reader 333 moves relative to the magnetic strip 332 to obtain measurement data. The detection ends of the first detection rod 341 and the second detection rod 331 are both conical. In the above scheme, the detection ends of the first detection rod 341 in the lock core hole detection assembly 34 and the second detection rod 331 in the lock beam hole detection assembly 33 are both conical. Through the guidance of the conical part, the first detection rod 341 and the second detection rod 331 can be adjusted during the process of extending into the corresponding hole position to achieve center alignment. The adjustment movable pair set in this scheme is used to overcome the deviation of the hole position on the lock in the longitudinal direction. The first detection rod 341 and the second detection rod 331 both adopt a limit hinge setting scheme to overcome the deviation of the hole position on the lock in the lateral direction. When the above technical solution is implemented, the first detection rod 341 and the second detection rod 331 are respectively located below the standard range of the lock core hole and the lock beam shallow hole of the lock, for example, the first detection rod 341 is located 0.5 mm below the standard range of the lock core hole of the lock. When the above lock tongue distance detection mechanism is in operation, the lock core hole detection assembly 34 first moves horizontally to send the first detection rod 341 into the lock core hole of the lock. When the first detection rod 341 extends into the lock core hole, it will drive the lock core hole detection assembly 34, the horizontal guide rail 32 and the lock beam hole detection assembly 33 to raise a certain height with the adjustment moving pair as the platform, and use this as the measurement reference point. Then, the lock beam hole detection assembly 33 moves horizontally to send the second detection rod 331 into the shallow hole of the lock beam of the lock. In the process of the second detection rod 331 extending into the shallow hole of the lock beam, it drives the measuring movable pair and the reader 333 thereon to move. The reader 333 moves relative to the magnetic strip 332 to obtain measurement data (the measurement technology of the magnetic scale is the existing technology), thereby calculating the length of the lock tongue hole between the lock core hole and the shallow hole of the lock beam, and further determining the length of the lock tongue that needs to be installed.Through the above description, the lock tongue distance detection mechanism can overcome the problems of measurement irregularity, easy damage and inaccurate data caused by the deviation of the punching position on the lock. In addition, compared with the lock tongue distance detection mechanism used in the prior application, it does not require a power structure in the longitudinal direction (i.e., the servo motor and screw structure in the prior application), which has the advantages of simplified structure and reduced cost.

[0042] In a further preferred embodiment, the adjustment movable pair includes a first longitudinal guide rail 351 and a first longitudinal slider 352 fixed on the detection bracket 31. A first limit stopper 353 is fixed to the lower end of the first longitudinal guide rail 351, and the first longitudinal slider 352 is movably arranged on the first longitudinal guide rail 351 above the first limit stopper 353. An adjustment bolt 338 is inserted into the first limit stopper 353, and a support spring 354 is sleeved on the adjustment bolt 338 above the first limit stopper 353, and the upper end of the support spring 354 abuts against the lower end of the first longitudinal slider 352. When the lock tongue distance detection mechanism is in operation, the lock core hole detection assembly 34 first moves horizontally to send the first detection rod 341 into the lock core hole of the lock. Since the detection end of the first detection rod 341 is conical and has a guiding function, the first detection rod 341 will drive the lock core hole detection assembly 34, the horizontal guide rail 32 and the lock beam hole detection assembly 33 to be lifted to a certain height with the first longitudinal slider 352 as the platform during the process of extending into the lock core hole, and use this as the measurement reference point. The support spring 354 is helpful to reduce the resistance that needs to be overcome (such as the gravity of the above-mentioned mechanisms) during the above-mentioned lifting process, so that the process of the first detection rod 341 extending into the lock core hole is smoother and the wear during the process is also smaller.

[0043] In a further preferred embodiment, the lock core hole detection assembly 34 further includes a first transverse slider 342 disposed on the transverse guide rail 32, a first base 343 disposed on the first transverse slider 342, and a first swing rod 344 whose end is limited and hinged on the first base 343. The first detection rod 341 is disposed on the swing end of the first swing rod 344. A first base groove is disposed in the first base 343, and a pin shaft 36 at the upper end of the first swing rod 344 is hingedly disposed in the first base groove. A gap is left between the upper end of the first swing rod 344 and the bottom surface of the first base groove, and limiting bolts 37 are penetrated on the first swing rod 344 on both upper and lower sides of the pin shaft 36. The limiting bolts 37 are in the gap and are used to limit the swing amplitude of the first swing rod 344. In the above embodiment, the first transverse slider 342 is driven by the lock core hole detection cylinder 38 to move horizontally along the transverse guide rail 32, so that the first detection rod 341 can extend into or out of the lock core hole. Furthermore, the installation structure between the first swing arm 344 and the first base groove enables the first swing arm 344 to swing slightly with a limited range along the pin shaft 36 as the center. The swing is mainly to reduce the small angle deviation of the lock core hole in the lateral direction.

[0044] In a further preferred embodiment, the locking beam hole detection assembly 33 further includes a second transverse slider 334 disposed on the transverse guide rail 32, and the measuring movable pair is disposed on the second transverse slider 334, and the measuring movable pair includes a second longitudinal guide rail 335 and a second longitudinal slider 336 fixed on the second transverse slider 334. A second limit stopper 337 is fixed to the lower end of the second longitudinal guide rail 335, and the second longitudinal slider 336 is movably disposed on the second longitudinal guide rail 335 above the second limit stopper 337. An adjusting bolt 338 is inserted into the second limit stopper 337, and a supporting spring 354 is sleeved on the adjusting bolt 338 above the second limit stopper 337, and the upper end of the supporting spring 354 abuts against the lower end of the second longitudinal slider 336.

[0045] The upper end of the adjusting bolt 338 abuts against the lower end of the first longitudinal slider 352. In the above technical solution, the second transverse slider 334 is driven by the lock beam hole detection cylinder 39 to move horizontally along the transverse guide rail 32, so that the second detection rod 331 can be inserted into or withdrawn from the lock beam shallow hole. Since the detection end of the second detection rod 331 is conical, when the second detection rod 331 is inserted into the lock beam shallow hole, it drives the second longitudinal slider 336 to slide upward, and further moves the reading head 333 relative to the magnetic strip 332 to obtain measurement data; the adjusting bolt 338 is used to adjust the initial height of the second longitudinal slider 336. The measuring moving pair is provided with a second base 339, and the second swing rod 330 is limitedly hinged in the second base 339. A second base groove is provided in the second base 339, and the upper end pin 36 of the second swing rod 330 is hinged in the second base groove. There is a gap between the upper end of the second swing rod 330 and the bottom surface of the second base groove. Limit bolts 37 are inserted into the second swing rod 330 on both sides of the upper and lower sides of the pin shaft 36. The limit bolts 37 are in the gap to limit the swing amplitude of the second swing rod 330. The second detection rod 331 is arranged on the swing end of the second swing rod 330. Similar to the installation structure between the first swing rod 344 and the first base groove, the installation structure between the second swing rod 330 and the second base groove can allow the first swing rod 344 to swing slightly with the pin shaft 36 as the center. The swing is mainly to reduce the small angle deviation of the lock core hole in the lateral direction.

[0046] The lock tongue spring assembly mechanism is used to feed the lock tongue spring into the lock tongue hole 93 of the lock body. Figure 2 and 7The figure shows one embodiment of the lock tongue spring assembly mechanism. In this embodiment, the lock tongue spring assembly mechanism includes a lock tongue spring feed assembly, a lock tongue spring feeding assembly and a lock tongue spring assembly assembly. The lock tongue spring feed assembly includes a lock tongue spring material tray and a lock tongue spring feed pipe connected to the lock tongue spring material tray. The lock tongue spring material tray is discharged in the form of a vibrating disk. The lock tongue spring enters the lock tongue spring feed pipe after being output from the lock tongue spring material tray. The lock tongue spring feeding assembly includes a feeding bracket 41 and a feeding cylinder 42 arranged on the feeding bracket 41. The feeding bracket 41 is provided with a feeding channel 43, and a feeding port 44 and a discharge port 45 communicated with the feeding channel 43. The feeding port 44 is connected to the end of the lock tongue spring feed pipe. The lock tongue spring assembly assembly includes a lock tongue spring assembly cylinder 46 and a punching rod arranged on the output end of the lock tongue spring assembly cylinder 46. The discharge port 45 is located directly above the lock tongue hole 93 of the lock body, and the punch rod corresponds to the discharge port 45. The operation process of the above-mentioned lock tongue spring assembly mechanism is as follows: the lock tongue spring material disk vibrates to output the lock tongue spring, and the lock tongue spring enters the feed port 44 of the feeding bracket 41 through the lock tongue spring feed pipe. The feeding cylinder 42 pushes the lock tongue spring from the feed port 44 along the feeding channel 43 to the discharge port 45, and the lock tongue spring assembly cylinder 46 outputs the lock tongue spring through the punch rod to press the lock tongue spring into the lock tongue hole 93 of the lock body. The above-mentioned lock tongue spring assembly assembly adopts the method of forced downward pressure by the lock tongue spring assembly cylinder 46 to install the lock tongue spring into the lock tongue hole 93. The advantage is that the operation process is stable and not prone to errors, but the cost is relatively high. This embodiment also provides another lock tongue spring assembly mechanism, such as Figure 7As shown, the lock tongue spring assembly mechanism includes a lock tongue spring feed assembly and a lock tongue spring loading assembly. The lock tongue spring feeding assembly is the same as the previous embodiment, including a lock tongue spring material tray and a lock tongue spring feeding tube connected to the lock tongue spring material tray, wherein the lock tongue spring material tray is discharged in the form of a vibrating disk, and the lock tongue spring enters the lock tongue spring feeding tube after being output from the lock tongue spring material tray. The lock tongue spring loading assembly includes a housing 48, a channel body 49 and a valve body 40 arranged in the housing 48. The channel body 49 is arranged inside the housing 48, and a loading channel 491, a first bayonet 492 and a second bayonet 493 communicating with the loading channel 491 are arranged in the channel body 49, the inlet end of the loading channel 491 is connected to the terminal end of the lock tongue spring feeding tube, and the outlet end of the loading channel 491 is located directly above the lock tongue hole 93 of the lock body, and the first bayonet 492 is located upstream of the loading channel 491 relative to the second bayonet 493. The middle part of the valve body 40 is hinged on the shell body 48, and the first card 401 and the second card 402 are respectively provided on both sides of the middle part of the valve body 40, and the first card 401 and the second card 402 respectively correspond to the first bayonet 492 and the second bayonet 493, and the valve body 40 can swing relative to its hinge point, so that the first card 401 and the second card 402 are alternately inserted into the first bayonet 492 and the second bayonet 493, so that when the second card 402 is inserted into the second bayonet 493, the first card 401 is on the outside of the first bayonet 492, and as mentioned above, the first bayonet 492 is upstream relative to the second bayonet 493, at this time, the lock tongue spring can go down through the first bayonet 492 and be intercepted by the second card 402 at the second bayonet 493. When the first card 401 is inserted into the first bayonet 492, the second card 402 is located outside the second bayonet 493. At this time, the upper lock tongue spring is intercepted by the first card 401, and the lower lock tongue spring falls into the lock tongue hole 93 of the lock body from the outlet end of the loading channel 491 under the action of gravity because the second bayonet 493 is opened, completing the assembly of the lock tongue spring. Furthermore, in order to limit the number of lock tongue springs passing through a single swing process to one, the distance between the first bayonet 492 and the second bayonet 493 needs to be greater than the length of one lock tongue spring and less than the length of two lock tongue springs. In addition, in order to control the movement of the lock tongue spring loading assembly, the lock tongue spring loading assembly also includes a lock tongue spring loading cylinder 403, which acts on the valve body 40 to control the swing of the valve body 40. In one of the solutions, the output end of the lock tongue spring loading cylinder 403 can be connected to the movable end on one side of the valve body 40. The lock tongue spring loading cylinder 403 drives the valve body 40 to move regardless of output or reset. This solution requires that the output path of the lock tongue spring loading cylinder 403 be adapted to the swing of the valve body 40.In another scheme, a compression spring 120 is provided between the movable end of one side of the valve body 40 and the shell 48, and the output end of the lock tongue spring loading cylinder 403 is abutted against the movable end of the valve body 40, so that when the lock tongue spring loading cylinder 403 is output, the compression spring 120 can be squeezed, and the card on the same side of the movable end is inserted into the corresponding slot. When the lock tongue spring loading cylinder 403 is reset, the elastic force of the compression spring 120 is released, so that the card on the same side of the movable end leaves the corresponding slot, and the card on the other side is inserted into the corresponding slot.

[0047] The lock tongue assembly mechanism is to install lock tongues of different specifications in the lock tongue hole 93 of the lock body according to the distance from the lower hole wall of the lock beam shallow hole 91 to the upper hole wall of the lock core hole 94 measured by the lock tongue distance detection mechanism. Figures 8 to 11As shown in , the lock tongue assembly mechanism includes multiple sets of lock tongue feeding assemblies and lock tongue assembly devices adapted to the lock tongue feeding assemblies. Among them, the multiple sets of lock tongue feeding assemblies are used to convey lock tongues of different specifications. In this embodiment, three sets of lock tongue feeding assemblies are selected to convey three sets of lock tongues of different specifications, and the appropriate lock tongue feeding assemblies are automatically operated based on the measurement data of the lock tongue distance detection mechanism. The three sets of lock tongue feeding assemblies are placed side by side longitudinally, so the lock tongue assembly device also moves to the corresponding height based on the measurement data of the lock tongue distance detection mechanism to undertake the corresponding lock tongue (its height adjustment is based on the longitudinal moving pair described below). The structure of each group of lock tongue feeding components is the same. The lock tongue feeding components include a lock tongue discharging tray, a lock tongue feeding tube, a lock tongue feeding plate 52 and a lock tongue feeding cylinder 53. The lock tongue discharging tray adopts a vibration tray to discharge and feed the lock tongue into the lock tongue feeding tube. A lock tongue channel 521 is provided in the lock tongue feeding plate 52. The inlet end of the lock tongue channel 521 is communicated with the terminal end of the lock tongue feeding tube. An elastic baffle 54 is provided on the outlet end of the lock tongue channel 521. The lock tongue channel 521 is divided into a first channel section 522, a second channel section 523 and a third channel section 524 from the inlet end to the outlet end, wherein the cross section of the first channel section 522 is a circle larger than the cross section of the lock tongue, the cross section of the third channel section 524 is a circle adapted to the cross section of the lock tongue, and a notch is provided at the upper end of the third channel section 524 of the lock tongue channel 521, and the cross section of the second channel section 523 is a transitional shape between the cross section of the first channel section 522 and the cross section of the third channel section 524. In a preferred embodiment, the cross section of the second channel section 523 is a rectangle, and the circular cross section of the third channel section 524 is an inscribed circle of the rectangular cross section of the second channel section 523. In the above embodiment, the first channel section 522 is a larger circle for sleeve connection with the end of the lock tongue material tube. After the lock tongue is output from the lock tongue discharging tray, the lock tongue enters the lock tongue channel 521 from the lock tongue material tube. Since the lock tongue is columnar as a whole and a lock tongue groove 971 is provided in the middle of the lock tongue, due to the center of gravity of the lock tongue groove 971 itself, when the lock tongue passes through the lock tongue material tube (the diameter of the lock tongue material tube is larger than the lock tongue cross-section) or passes through the second channel section 523 of the lock tongue channel 521, the lock tongue will automatically straighten, that is, at this time, the lock tongue groove 971 is always facing upwards, and passes through the third channel section 524 in this state, and the third channel section 524 is adapted to the lock tongue cross-section, so that the lock tongue maintains the above state. The bolt feeding cylinder 53 is arranged on the bolt feeding plate 52, and a bolt pushing component is arranged on the output end of the bolt feeding cylinder 53, and the bolt pushing component includes a fixed plate 127 fixed on the output end of the bolt feeding cylinder 53, and a movable push plate 531 hinged on the fixed plate 127, and a tip 532 is arranged on the movable end of the movable push plate 531 for being inserted into the bolt groove 971, and the tip is provided with an inclined surface 533 on one side close to the hinge end. After the bolt enters the third channel section 524, it is intercepted by the elastic baffle 54, and the bolt feeding cylinder 53 pushes the bolt through the bolt pushing component, so that the bolt enters the bolt assembly device.When pushing, the tip of the movable push plate 531 in the lock tongue pushing component is stuck in the lock tongue groove 971 of the second lock tongue at the end, and the lock tongue feeding cylinder 53 acts on the second lock tongue at the end when it is output, pushing the last lock tongue into the lock tongue assembly device. When the lock tongue feeding cylinder 53 is reset, since the movable push plate 531 is hinged and provided with a slope for guiding cooperation, the movable push plate 531 will swing along the hinged end at a certain angle until the tip of the movable push plate 531 is stuck in the corresponding lock tongue groove 971.

[0048] The above-mentioned bolt assembly device includes a transverse moving pair, a longitudinal moving pair arranged on the transverse moving pair, a rotating pair 55 arranged on the longitudinal moving pair, and a bolt assembly pair arranged on the rotating pair 55. Among them, the transverse moving pair is moved and adjusted in the channel direction of the above-mentioned bolt channel 521 (also the radial direction of the rotating disk 11), and is used to approach or move away from the outlet end of the bolt channel 521. The longitudinal moving pair is moved and adjusted in the height direction, and is used to approach or move away from the lock body fixture 12 corresponding to the bolt assembly station d. The rotating pair 55 is used to adjust the angle of the bolt assembly pair so that it can receive the bolt at the outlet end of the bolt channel 521 and align the bolt with the bolt hole 93 of the lock body. Specifically, the bolt assembly pair includes a bolt fixture 56, a bolt assembly cylinder 57 and a baffle plate 58. The bolt fixture 56 is provided with a bolt assembly port 561, and the output end of the bolt assembly cylinder 57 is aligned with the bolt assembly port 561. The baffle plate 58 is arranged on one side of the bolt fixture 56. When it is necessary to receive the lock tongue at the exit end of the lock tongue channel 521, the rotating pair 55 adjusts the lock tongue assembly pair to a horizontal position, the baffle plate 58 is located below the lock tongue fixture 56, the transverse moving pair moves to make the lock tongue assembly port 561 close to the lock tongue channel 521, the longitudinal moving pair moves to make the baffle plate 58 press down the elastic baffle 54 at the exit end of the lock tongue channel 521, so that the elastic baffle 54 will not intercept the movement of the lock tongue, the lock tongue assembly port 561 on the lock tongue fixture 56 is aligned with the exit end of the lock tongue channel 521, and then the lock tongue feeding cylinder 53 pushes the end of the lock tongue into the lock tongue assembly port 561 based on the above-mentioned action, completing the loading and receiving step of the lock tongue. When it is necessary to install the lock tongue into the lock tongue hole 93, the longitudinal moving pair moves to make the baffle plate move the elastic baffle at the exit end of the lock tongue channel back to its position, so that the elastic baffle blocks the lock tongue in the third channel, and the transverse moving pair moves to separate the lock tongue assembly port from the lock tongue channel. The rotating pair 55 adjusts the bolt assembly pair to a vertical position, and the lateral moving pair moves so that the bolt fixture 56 is directly above the lock body fixture 12, and the bolt assembly port 561 on the bolt fixture 56 corresponds to the bolt hole 93 on the lock body, and the longitudinal moving pair moves downward to make the bolt assembly port 561 on the bolt fixture 56 close to the bolt hole 93 on the lock body, and finally the bolt assembly cylinder 57 moves to install the bolt in the bolt assembly port 561 into the bolt hole 93 of the lock body, completing the bolt assembly. Based on the above operation process, the structures of the lateral moving pair, the longitudinal moving pair and the rotating pair 55 are not unique, as long as they can complete the movement or rotation in the corresponding direction. In the scheme shown in the figure, the lateral moving pair and the longitudinal moving pair are realized by a servo motor in conjunction with a screw rod structure, and the specific structure can be referred to the longitudinal moving pair structure in the bolt distance detection mechanism, which will not be described in detail here. The rotating pair 55 can be realized by a 90° rotating cylinder, which is a purchased part and is widely used in the industry, so it will not be described in detail here.

[0049] like Figure 2As shown in 12 to 14, the lock core assembly mechanism includes a lock core feeding device, a lock core assembly component and a lock core positioning component. Among them, the lock core feeding device is used to transport the lock core to the specified position, the lock core assembly component is used to install the lock core into the lock core hole 94 of the lock body, and the lock core positioning component is used to assist the lock core assembly and position the lock core. The lock core feeding device in the lock core assembly mechanism needs to ensure that the lock core is in a specific state when it is transported to the position to be assembled, that is, it needs to ensure that the lock core foot 991 on the inner end of the lock core is in a specific position. The lock cores used in existing padlocks are divided into two categories, one of which is that the lock core surface is provided with a lock core groove along its surface, and the other is that the lock core surface is smooth and does not have the above-mentioned lock core groove. For the lock core with a lock core groove, the lock core feeding device used in this scheme is as follows Figure 2 As shown, it includes a lock core discharge tray, a lock core loading track 61 and a lock core feeding assembly, the starting end of the lock core loading track 61 is connected to the lock core discharge tray, the lock core output by the lock core discharge tray enters the lock core loading track 61, and the lower end surface of the track of the lock core loading track 61 is provided with a first limit bar 611 adapted to the lock core groove on the lock core, and only when the first limit bar 611 is stuck in the lock core groove, the lock core can be transported along the lock core loading track 61. The lock core feeding assembly includes a transverse moving pair, and a lock core fixture 62 arranged on the transverse moving pair, wherein the transverse moving pair includes a slide rail and a moving cylinder 63 arranged on the frame 1, and a slider arranged on the slide rail, the output end of the moving cylinder 63 is connected to the slider, and drives the slider to move on the slide rail. The lock core clamp 62 is arranged on the slider, and the lock core clamp 62 includes a fixed clamp body 621 and a movable clamp body 622 hinged to the fixed clamp body 621, and a lock core clamp opening 623 is formed between the movable clamp body 622 and the fixed clamp body 621. A second limit strip 624 is provided on the fixed clamp body 621 on the lower side of the lock core clamp opening 623, which has the same function as the first limit strip 611. The second limit strip 624 is also adapted to the lock core groove on the lock core for positioning the lock core to prevent it from circumferential rotation during the pushing process. In the above lock core feeding device, the lock core outputted by the lock core discharging tray is transported through the lock core feeding track 61 and sent into the lock core fixture opening 623. The first limit bar 611 on the lock core feeding track 61 and the second limit bar 624 on the lock core fixture 62 are inserted into the lock core groove of the lock core to realize the positioning of the lock core during the feeding, feeding and assembly process. The lateral moving pair moves the lock core fixture 62 back and forth between the end of the lock core feeding track 61 (feeding position) and the output position (assembly position) of the lock core assembly component, thereby realizing the feeding of the lock core. This solution has a simple and practical structure and low cost, but its disadvantage is that it is not widely applicable and is only applicable to lock cores with lock core grooves.

[0050] In the case where the surface of the lock core is smooth and does not have the above-mentioned lock core groove, the lock core loading device used in this scheme includes a lock core discharge tray, a lock core loading track 61, a lock core feeding assembly and a lock core angle adjustment assembly. The starting end of the lock core loading track 61 is connected to the lock core discharge tray, and the lock core output by the lock core discharge tray enters the lock core loading track 61. The lock core loading track 61 in this scheme is only used to regulate the lock core conveying direction, and does not limit the circumferential angle of the lock core. The lock core feeding assembly is consistent with the previous scheme, including a transverse moving pair, and a lock core clamp 62 arranged on the transverse moving pair, wherein the transverse moving pair includes a slide rail and a moving cylinder 63 arranged on the frame 1, and a slider arranged on the slide rail, the output end of the moving cylinder 63 is connected to the slider, and drives the slider to move on the slide rail. The lock core clamp 62 is arranged on the slider. The lock core clamp 62 in this scheme includes a clamp base 625 and two movable clamp bodies 622 respectively hinged on the clamp base 625. The hinged ends of the two movable clamp bodies 622 are meshed through teeth 626, and the movable ends of the two movable clamp bodies 622 form a lock core clamp opening 623. The lock core angle adjustment assembly includes a clamping rotating part and a sensor on both sides of the lock core clamp 62, wherein the clamping rotating part adopts a numerical control rotating shaft, and an elastic clamping part arranged on the end of the numerical control rotating shaft, the elastic clamping part is used to clamp the end of the lock core, the numerical control rotating shaft is used to rotate the lock core angle, and the sensor adopts a photoelectric sensor, which is used to detect the position of the lock core foot 991. When the lock core foot 991 rotates to a suitable position, the feedback signal of the sensor is sent to the controller, so that the numerical control rotating shaft stops in time, so that the lock core is at a suitable angle. The lock core outputted from the lock core discharge tray in the above scheme is transported through the lock core loading track 61 and sent into the lock core clamp mouth 623, and then the lateral moving pair moves the lock core clamp 62 back and forth between the end of the lock core loading track 61 (loading position), the output position of the lock core angle adjustment component (rotation position) and the output position of the lock core assembly component (assembly position) to realize the transfer of the lock core. In the rotation position, the clamping rotating component clamps the end of the lock core and rotates the lock core, and the sensor detects the position of the lock core foot 991 until the lock core rotates to the appropriate position. Compared with the previous scheme, this scheme has strong applicability, that is, all lock cores are used, but it is relatively complex in structure and has a higher cost.

[0051] Regardless of which of the above-mentioned lock core feeding devices is used, the lock core assembly components used in the lock core assembly mechanism can adopt the following scheme, including a CNC motor and a lock core push rod 65 driven by the CNC motor, wherein the lock core push rod 65 corresponds to the lock core hole 94 on the lock body, and a rod tip is provided on the end of the lock core push rod 65 for extending into the key hole of the lock core, which can prevent the lock core from circumferential deflection while pushing the lock core. When the lateral moving pair moves the lock core on the lock core clamp 62 to the assembly position, the lock core assembly cylinder outputs, the lock core push rod 65 pushes the lock core forward and pushes the lock core into the lock core hole 94 of the lock body. At the same time, in the lock core feeding devices of the above two schemes, the lock core clamp 62 adopts an open lock core clamp mouth 623, and the lateral moving pair can drive the lock core clamp 62 to reset, and the lock core is detached from the lock core clamp mouth 623.

[0052] The lock core positioning assembly referred to above is used to assist the lock core assembly and position the lock core. Specifically, since the lock tongue spring and the lock tongue are assembled in the foregoing part, but the lock tongue spring and the lock tongue are only installed in the lock tongue hole 93, and the lock tongue spring and the lock tongue are in a loose state, when the lock core is assembled, on the one hand, the lock tongue spring and the lock tongue need to be pressed so that the lock core foot 991 on the end of the lock core can be hooked with the lock tongue groove 971 after the lock core is installed, and on the other hand, the vertical milling spring needs to be installed to limit the lock core. Therefore, the lock core positioning assembly includes a vertical milling spring feeding assembly, a vertical milling spring assembly assembly, and a lock tongue pressing component. The vertical milling bullet loading component includes a vertical milling bullet ejection tray, a vertical milling bullet ejection tube 671, a vertical milling bullet feeding rack 672 and a vertical milling bullet feeding cylinder 673. The beginning of the vertical milling bullet ejection tube 671 is connected to the output position of the vertical milling bullet ejection tray. The vertical milling bullet feeding rack 672 is provided with a vertical milling bullet track, and a bullet inlet hole and a bullet outlet hole communicated with the vertical milling bullet track. The vertical milling bullet feeding cylinder 673 can push the vertical milling bullet from the bullet inlet hole to the bullet outlet hole along the vertical milling bullet track. The vertical milling bullet assembly component includes a vertical milling bullet assembly cylinder 681, and a vertical milling bullet ejector rod 682 arranged on the output end of the vertical milling bullet assembly cylinder 681. When the vertical milling bullet assembly cylinder 681 is output, the vertical milling bullet ejector rod 682 presses the vertical milling bullet into the vertical milling bullet hole 95 of the lock body. In one solution, the bolt pressing component includes a bolt pressing cylinder and a bolt pressing rod on the output end of the bolt pressing cylinder. When the bolt pressing cylinder is output, the bolt pressing rod extends into the bolt hole 93 to press the bolt and the bolt spring. In another solution, the bolt pressing component is only the bolt pressing rod 69, which is also assembled on the output end of the vertical milling spring assembly cylinder 681.

[0053] The specific steps of assembling the lock core of the lock core assembly mechanism are as follows: 1. The lock core fixture 62 moves the lock core to a position directly opposite to the lock core hole 94 of the lock body. 2. The vertical milling spring assembly cylinder 681 outputs, the vertical milling spring push rod 682 and the lock tongue pressing rod 69 both move downward, and the lock tongue pressing rod 69 presses down the lock tongue (the vertical milling spring is not sent in this step). 3. The lock core push rod 65 sends the lock core to a certain position (not to the bottom), and the lock core foot 991 is inserted into the lock tongue groove 971 to hook the lock tongue. 4. The vertical milling spring assembly cylinder 681 is reset, and the vertical milling spring push rod 682 and the lock tongue pressing rod 69 both move upward. 5. The vertical milling spring feeding assembly sends the vertical milling spring to the ejection hole, the vertical milling spring assembly cylinder 681 outputs, the vertical milling spring push rod 682 and the lock tongue pressing rod 69 both move downward, and the vertical milling spring push rod 682 presses the vertical milling spring down. 6. The lock core push rod 65 pushes the lock core completely in, and the vertical milling spring is inserted into the lock core under the pressure of the vertical milling spring push rod 682 to position the lock core. 7. Completed, the lock core push rod 65, the vertical milling spring push rod 682 and the lock tongue pressing rod 69 are all reset.

[0054] Finally, the lock body discharging mechanism includes a lock body unloading assembly and a lock body conveying assembly. The lock body unloading assembly includes a lock body unloading cylinder 71 and a lock body unloading push rod 72. The lock body conveying assembly includes a lock body conveying track 73 and a lock body conveying cylinder 74. The lock body unloading push rod 72 corresponds to the lock body fixture 12 on the lock body unloading station f. The lock body unloading push rod 72 is used to push the lock body out of the lock body fixture 12 and drop it into the lock body conveying track 73. As described above in the clamping turntable 11 mechanism, a set of unlocking assemblies is provided on the lock body unloading station f. The output end of the unlocking assembly acts on the movable plate 128 to achieve unlocking, and then the lock body unloading push rod 72 can push the lock body out. The lock body conveying cylinder 74 is used to push the lock body out along the lock body conveying track 73.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0056] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. A lock tongue distance detection mechanism, comprising a detection bracket, an adjustment movable pair arranged on the detection bracket, and a lock beam hole detection component and a lock core hole detection component installed on the adjustment movable pair; characterized in that: The adjusting movable pair is provided with a transverse guide rail, and the lock beam hole detection assembly and the lock core hole detection assembly are slidably arranged on the transverse guide rail and are respectively located on both sides of the lock body fixture corresponding to the lock tongue distance detection station; the lock core hole detection assembly includes a first detection rod which is hingedly arranged with a limit, the first detection rod can swing along the hinge point with a limit, and the lock core hole detection assembly can extend into the lock core hole of the lock body when it moves; the lock beam hole detection assembly includes a measuring movable pair, a second detection rod and a magnetic scale, the magnetic scale includes a fixed magnetic strip, and a reader arranged on the measuring movable pair; the second detection rod is hingedly arranged on the measuring movable pair with a limit, and the second detection rod can swing along the hinge point with a limit; when the lock beam hole detection assembly moves horizontally, the second detection rod can extend into the shallow hole of the lock beam of the lock body; when the measuring movable pair moves longitudinally, the reader moves relative to the magnetic strip to obtain measurement data; the detection ends of the first detection rod and the second detection rod are both conical; The adjusting movable pair comprises a first longitudinal guide rail and a first longitudinal slider fixed on the detection bracket; a first limit stopper is fixed at the lower end of the first longitudinal guide rail, and the first longitudinal slider is movably arranged on the first longitudinal guide rail above the first limit stopper; an adjusting bolt is inserted into the first limit stopper, and a supporting spring is sleeved on the adjusting bolt above the first limit stopper, and the upper end of the supporting spring abuts against the lower end of the first longitudinal slider; The lock core hole detection assembly also includes a first transverse slider arranged on the transverse guide rail, a first base arranged on the first transverse slider, and a first swing rod with an end limit hinged on the first base; the first detection rod is arranged on the swing end of the first swing rod; a first base groove is arranged in the first base, and the upper end pin of the first swing rod is hinged in the first base groove; a gap is left between the upper end of the first swing rod and the bottom surface of the groove of the first base groove, and the first swing rods on the upper and lower sides of the pin shaft are penetrated with limit bolts, and the limit bolts are located in the gap to limit the swing amplitude of the first swing rod; a second base is arranged on the measuring moving pair, and a second swing rod is limitedly hinged in the second base; a second base groove is arranged in the second base, and the upper end pin of the second swing rod is hinged in the second base groove; a gap is left between the upper end of the second swing rod and the bottom surface of the groove of the second base groove, and the second swing rods on the upper and lower sides of the pin shaft are penetrated with limit bolts, and the limit bolts are located in the gap to limit the swing amplitude of the second swing rod; the second detection rod is arranged on the swing end of the second swing rod.

2. A lock tongue distance detection mechanism according to claim 1, characterized in that: The lock beam hole detection assembly also includes a second transverse slider arranged on the transverse guide rail, and the measuring movable pair is arranged on the second transverse slider. The measuring movable pair includes a second longitudinal guide rail and a second longitudinal slider fixed on the second transverse slider; a second limit block is fixed to the lower end of the second longitudinal guide rail, and the second longitudinal slider is movably arranged on the second longitudinal guide rail above the second limit block; an adjusting bolt is passed through the second limit block, and a supporting spring is sleeved on the adjusting bolt above the second limit block, and the upper end of the supporting spring is abutted against the lower end of the second longitudinal slider.

3. A lock assembly machine, characterized in that: It comprises a lock tongue distance detection mechanism as described in any one of claims 1 to 2.

4. A lock assembly machine according to claim 3, characterized in that: The lock assembly machine comprises a frame, and a clamping turntable mechanism, a lock body feeding mechanism, a lock tongue distance detection mechanism, a lock tongue spring assembly mechanism, a lock tongue assembly mechanism, a lock core assembly mechanism and a lock body discharging mechanism arranged on the frame; the clamping turntable mechanism comprises a turntable, and a lock body clamp arranged on the turntable, the lock body clamp is used to clamp and fix the lock body; during the rotation of the turntable, the lock body clamp passes through the lock body feeding station, the lock tongue distance detection station, the lock tongue spring assembly station, the lock tongue assembly station, the lock core assembly station and the lock body discharging station in sequence; the above The lock body loading station, lock tongue distance detection station, lock tongue spring assembly station, lock tongue assembly station, lock core assembly station and lock body discharging station correspond to the lock body loading mechanism, lock tongue distance detection mechanism, lock tongue spring assembly mechanism, lock tongue assembly mechanism, lock core assembly mechanism and lock body discharging mechanism respectively; the lock tongue distance detection mechanism is used to measure the distance between the lock core hole and the lock beam hole on the lock body, so as to determine the required length of the lock tongue; the lock tongue assembly mechanism selects a lock tongue of appropriate length according to the detection data of the above-mentioned lock tongue distance detection mechanism, and installs it into the lock tongue hole.

5. A lock assembly machine according to claim 4, characterized in that: The lock tongue assembly mechanism comprises a lock tongue loading assembly and a lock tongue assembly device; the lock tongue loading assembly comprises a lock tongue discharging plate, a lock tongue material tube, a lock tongue feeding plate and a lock tongue feeding cylinder, a lock tongue channel is arranged in the lock tongue feeding plate, the inlet end of the lock tongue channel is communicated with the end part of the lock tongue material tube, and an elastic baffle is arranged on the outlet end of the lock tongue channel; the lock tongue channel is divided into a first channel section, a second channel section and a third channel section from the inlet end to the outlet end, wherein the cross section of the first channel section is a circle larger than the cross section of the lock tongue, the cross section of the third channel section is a circle adapted to the cross section of the lock tongue, and a notch communicating with the third channel section is arranged at the upper end of the lock tongue channel; the cross section of the second channel section is The invention relates to a rectangular shape, and the circular cross-section of the third channel section is the inscribed circle of the rectangular cross-section of the second channel section; the lock tongue feeding cylinder is arranged on the lock tongue feeding plate, and a lock tongue pushing component is arranged on the output end of the lock tongue feeding cylinder, and the lock tongue pushing component comprises a fixed plate fixed on the output end of the lock tongue feeding cylinder, and a movable push plate hinged on the fixed plate, a tip is arranged on the movable end of the movable push plate for being inserted into the lock tongue groove, and the tip is provided with an inclined surface on the side close to the hinged end; when pushing, the tip of the movable push plate in the lock tongue pushing component is inserted into the lock tongue groove of the second lock tongue at the end, and the lock tongue feeding cylinder acts on the second lock tongue at the end when outputting, and pushes the lock tongue at the end into the lock tongue assembly device.

6. A lock assembly machine according to claim 5, characterized in that: The bolt assembly device comprises a transverse moving pair, a longitudinal moving pair arranged on the transverse moving pair, a rotating pair arranged on the longitudinal moving pair, and a bolt assembly pair arranged on the rotating pair; the bolt assembly pair comprises a bolt fixture, a bolt assembly cylinder and a baffle plate, the bolt fixture is provided with a bolt assembly port, the output end of the bolt assembly cylinder is aligned with the bolt assembly port, and the baffle plate is arranged on one side of the bolt fixture; when it is necessary to receive the bolt at the outlet end of the bolt channel, the rotating pair adjusts the bolt assembly pair to a horizontal position, the baffle plate is located below the bolt fixture, the transverse moving pair moves to make the bolt assembly port close to the bolt channel, the longitudinal moving pair moves to make the baffle plate press down the elastic baffle at the outlet end of the bolt channel, so that the elastic baffle will not intercept the bolt movement, and the bolt assembly port on the bolt fixture is aligned with the outlet end of the bolt channel; When the lock tongue needs to be installed into the lock tongue hole, the longitudinal moving pair moves so that the baffle pressure plate moves the elastic baffle at the outlet end of the lock tongue channel back to its position, so that the elastic baffle blocks the lock tongue in the third channel, the transverse moving pair moves to separate the lock tongue assembly port from the lock tongue channel, the rotating pair adjusts the lock tongue assembly pair to a vertical position, and the transverse moving pair moves so that the lock tongue clamp is directly above the lock body clamp, the lock tongue assembly port on the lock tongue clamp corresponds to the lock tongue hole on the lock body, the longitudinal moving pair moves downward to make the lock tongue assembly port on the lock tongue clamp close to the lock tongue hole on the lock body, and the lock tongue assembly cylinder moves to install the lock tongue in the lock tongue assembly port into the lock tongue hole of the lock body.

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