Quick positioning fixture for handle guard plate for smart lock assembly

Abstract

The present invention relates to the technical field of clamps, and specifically to a quick positioning clamp for a handle guard plate for assembling an intelligent lock, comprising a flip frame and a motor, wherein a clamp and an end positioning assembly are provided in the flip frame, and when the two clamps clamp the long side surfaces of a substrate facing each other, the end positioning assembly abuts against the short side surfaces of the substrate; a bracket is provided at the bottom of the flip frame, and auxiliary clamps are provided at the top and bottom ends of the clamps, and by designing two clamps that can move toward each other in the flip frame, and providing an end positioning assembly that contacts the end surfaces of the short side surfaces of the substrate between the two ends of the two clamps, the side surfaces of the substrate can be quickly and accurately abutted and positioned after the substrate is placed on the bracket, and when the panel is placed on the handle guard plate, the auxiliary clamps installed on the clamps can effectively perform preliminary fixation on the panel, and can effectively prevent the panel from falling off from the substrate during the flipping process of the substrate, thereby solving the problem that the panel is easy to fall off when the handle guard plate is assembled using the existing clamps.

Description

Technical Field

[0001] The present invention relates to the technical field of clamps, and in particular to a quick positioning clamp for a handle guard plate used in assembling a smart lock. Background Art

[0002] With the widespread use of smart door locks, their internal structures are becoming increasingly complex, and the requirements for assembly precision are constantly increasing. Among them, the handle guard, as an important component of the external structure of the smart lock, usually consists of three parts: a base plate, a panel, and a back plate. Its assembly sequence and positioning accuracy have a significant impact on the function and appearance of the entire lock. In automated production, the base plate must first be clamped and positioned, and then the panel is placed on top of the base plate. The entire system is then rotated 180 degrees so that the panel fits under the base plate. Finally, the back plate is placed on the back of the base plate and the three are fixed together with screws. This process involves the assembly, flipping, and alignment of multiple components. Positioning accuracy and operational stability directly affect assembly efficiency and product consistency.

[0003] Currently, during the assembly of smart locks, the assembly of handle guards mostly relies on manual operation or universal fixtures. Manual positioning is inefficient and has large errors, which not only increases the difficulty of assembly, but also makes it difficult to meet the dual requirements of speed and precision for mass production. Universal fixtures, however, have problems such as poor adaptability and frequent repeated adjustments when dealing with changes in the guard plate structure. In particular, during the flip assembly process of the base plate and panel, misalignment or falling off are prone to occur, affecting the stability of subsequent assembly. In order to meet the demand for efficient and accurate positioning of this type of precision components on automated assembly lines, existing assembly methods and equipment still have considerable room for improvement. Summary of the Invention

[0004] In response to the problems existing in the prior art, a quick positioning fixture for a handle guard plate for assembling a smart lock is provided. By designing two splints that can move toward each other in a flip frame, and arranging an end positioning component that contacts the short side end of the base plate between the two ends of the two splints, the side of the base plate can be quickly and accurately abutted and positioned after the base plate is placed on the bracket; at the same time, when the panel is placed on the handle guard plate, the auxiliary clamp installed on the splint can effectively perform a preliminary fixation on the panel, and can effectively prevent the panel from falling off from the base plate during the flipping process of the base plate, thereby solving the problem that the panel is easy to fall off when the handle guard plate is assemble using the existing clamp.

[0005] The two lever arrangement comprises a first end portion for sliding the two levers along the longitudinal axis, and a second end portion for sliding the two levers along the longitudinal axis to move the two levers toward each other.

[0006] Preferably, the flip frame is provided with two drive plates capable of moving toward each other and a clamping driver for driving the two drive plates to move toward each other, the clamping plate is located between the two drive plates, and an elastic connection component is provided between the drive plate and its adjacent clamping plate.

[0007] Preferably, the elastic connection assembly includes a connecting rod and a connecting spring, the connecting rods are arranged at equal intervals on the side of the clamping plate facing the driving plate, the connecting rods extend along the width direction of the clamping plate and slide through the driving plate, and a limiting ring is provided at one end of the connecting rod passing through the driving plate; the connecting spring is sleeved on the connecting rod, and the connecting spring is located between the driving plate and the clamping plate.

[0008] Preferably, the clamping drive includes a sliding plate, a swing arm, a linear drive and a driving arm. The sliding plate is slidably arranged on the driving plate along the length direction of the driving plate. There are two swing arms, and the two swing arms are arranged in parallel between the inner side of the flip frame and the sliding plate. The two ends of the swing arm are respectively rotatably connected to the inner side of the flip frame and the sliding plate. The linear drive is arranged in the flip frame and has an output rod. The two ends of the driving arm are respectively rotatably connected to one of the swing arms and the output rod.

[0009] Preferably, the bracket includes a lifting plate elastically arranged at the bottom of the flip frame along the longitudinal direction, and the top of the lifting plate is provided with support plates arranged at equal intervals along the length direction of the clamp, and both sides of the support plates have inclined surfaces, and the top of the support plate abuts the bottom end of the clamp, and the flip frame is flipped after the bottom edge abuts on the inclined surface of the support plate.

[0010] Preferably, the positioning fixture also includes a base plate, the flip frame is rotatably arranged on the top of the base plate, the bottom end of the lifting plate is provided with a positioning column that slides downward and passes through the base plate, and the positioning column is provided with an elastic abutment element, and the elastic abutment element is located between the base plate and the lifting plate.

[0011] Preferably, the end positioning assembly includes an abutment seat and a transmission connecting rod, the abutment seat is slidably arranged between the two clamps along the length direction of the clamp, there are two transmission connecting rods, and the ends of the two transmission connecting rods are respectively rotatably connected to the ends of the clamp and the abutment seat.

[0012] Preferably, a pressure seat capable of moving along the length direction of the clamping plate is further provided at the end of the abutting seat, and an elastic buffer element is provided between the pressure seat and the abutting seat.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The present application designs two clamps that can move toward each other in the flip frame, and sets an end positioning assembly with an abutting function between the two ends of the two clamps. The end positioning assembly can be in close contact with the short side of the substrate, thereby ensuring that after the substrate is placed on the bracket, the side of the substrate can be quickly and stably accurately abutted and positioned. Specifically, after the substrate is placed on the bracket, the synergistic effect of the two clamps and the end positioning assembly enables the substrate to remain in a fixed positioning state. At the same time, when the panel is placed on the handle guard, the auxiliary clamp installed on the clamp can effectively perform a preliminary fixation on the panel to prevent the panel from loosening and slipping. This design not only ensures the stability of the panel during the flipping of the substrate, but also prevents the panel from detaching from the handle guard, thereby solving the problem of the panel easily falling off during the assembly process of traditional clamps. Through this optimization, not only the work efficiency is improved and the assembly accuracy is improved, but also the reliability and safety of the system are enhanced, and the overall performance of the smart lock assembly process is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of a quick positioning fixture for a handle guard plate used in assembling a smart lock according to the present invention.

[0016] Figure 2 It is a front view of a quick positioning fixture for a handle guard plate for assembling a smart lock according to the present invention.

[0017] Figure 3 yes Figure 2 Cross-sectional view at section AA.

[0018] Figure 4 yes Figure 3 A partial enlarged view of point B.

[0019] Figure 5 It is a top view of a quick positioning fixture for a handle guard plate for assembling a smart lock according to the present invention.

[0020] Figure 6 yes Figure 5 A partial enlarged view of point C.

[0021] Figure 7 yes Figure 5 A partial enlarged view of point D.

[0022] Figure 8 This is a schematic diagram of a quick positioning fixture for assembling a handle guard plate for a smart lock of the present invention when installing the handle guard plate.

[0023] Figure 9 yes Figure 8 A partial enlarged view of point E.

[0024] Figure 10 This is a partial three-dimensional exploded view of a quick positioning fixture for a handle guard plate used in assembling a smart lock according to the present invention.

[0025] The numbers in the figure are: 1. flip frame; 11. drive plate; 121. sliding plate; 122. swing arm; 123. linear drive; 124. drive arm; 131. connecting rod; 132. connecting spring; 133. limiting ring; 2. motor; 3. clamp; 31. threaded hole; 4. end positioning assembly; 41. abutment seat; 42. transmission connecting rod; 43. pressure seat; 44. elastic buffer element; 5. bracket; 51. lifting plate; 52. support plate; 53. positioning column; 54. elastic abutment element; 6. auxiliary clamp; 61. clamp seat; 611. bolt; 62. clamp block; 621. upper inclined surface; 622. lower inclined surface; 7. bottom plate; 81. substrate; 82. panel. DETAILED DESCRIPTION

[0026] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 8 and Figure 9As shown, a quick positioning fixture for a handle guard plate for assembling a smart lock is used to fix the base plate 81 in the handle guard plate while fixing the panel 82 in the handle guard plate. It includes a flip frame 1 and a motor 2 for driving the flip frame 1 to rotate. The flip frame 1 is provided with two clamps 3 that can move toward each other, and the same end of the two clamps 3 is provided with an end positioning component 4 that can move along its length direction. When the two clamps 3 clamp the long side of the base plate 81 towards each other, the end positioning component 4 abuts against the short side of the base plate 81; the bottom of the flip frame 1 is provided with a bracket 5 that can move downward, and when the flip frame 1 moves downward, the bracket 5 moves downward, and the top and bottom ends of the clamps 3 are provided with auxiliary clamps 6 that can abut against the side of the panel 82 along the width direction of the clamps 3.

[0028] When the two clamps 3 clamp the long sides of the substrate 81 towards each other, the end positioning assembly 4 precisely abuts the short sides of the substrate 81 to ensure the stable positioning of the substrate 81. The bottom of the flip frame 1 is provided with a bracket 5 that can move downward. When the flip frame 1 moves downward, the bracket 5 moves downward synchronously, so that the substrate 81 can be supported when placed so as to be located between the two clamps 3. At the same time, the top and bottom ends of the clamps 3 are provided with auxiliary clamps 6. These auxiliary clamps 6 can move along the width direction of the clamps 3 and precisely abut the sides of the panel 82 to effectively fix the panel 82 preliminarily. This design not only ensures that the panel 82 will not fall off the substrate 81 when the substrate 81 is flipped, but also improves the stability and efficiency of the entire assembly process. Through this structural improvement, the risk of the panel 82 falling off during the traditional assembly process is significantly reduced, the assembly accuracy and ease of operation of the smart lock are improved, and it has higher applicability and reliability.

[0029] like Figure 3 and Figure 4 As shown, the auxiliary clamp 6 includes a clamp seat 61 connected to the clamp plate 3 and a clamp block 62 elastically connected to the clamp seat 61, and the end of the clamp block 62 facing away from the clamp seat 61 has an upper inclined surface 621 and a lower inclined surface 622. After the lower edge of the panel 82 moves from top to bottom and abuts against the upper inclined surface 621, the clamp block 62 overcomes the elastic force and moves until the lower inclined surface 622 of the clamp block 62 abuts against the upper edge of the panel 82.

[0030] The auxiliary clamp 6 includes a clamping seat 61 connected to the clamping plate 3 and a clamping block 62 elastically connected to the clamping seat 61. The structure of the clamping block 62 is designed to be provided with an upper inclined surface 621 and a lower inclined surface 622 at the end facing away from the clamping seat 61. When the lower edge of the panel 82 moves from top to bottom, it first contacts the upper inclined surface 621, thereby guiding the accurate positioning of the panel 82. At this time, the clamping block 62 overcomes the external force through its elastic properties and moves slowly until the lower inclined surface 622 precisely abuts the upper edge of the panel 82. As the lower inclined surface 622 of the clamping block 62 contacts the upper edge of the panel 82, the panel 82 is firmly clamped between the clamping plate 3 and the clamping block 62, preventing the panel 82 from sliding or loosening.

[0031] This design optimizes the clamp's adaptability, ensuring that panel 82 is securely and firmly fixed to base plate 81. The elastic connection allows for fine-tuning of clamp block 62 to accommodate varying thicknesses of panel 82, providing greater flexibility and preventing loosening of panel 82 due to improper installation. Furthermore, the beveled design of clamp block 62 smoothes the securing process for panel 82, reducing friction and damage during operation and improving assembly efficiency and quality.

[0032] like Figure 7 As shown, the clamping plate 3 is provided with threaded holes 31 arranged at equal intervals along its length direction, and the clamping seat 61 is provided with bolts 611 passing through it. The bolts 611 pass through the clamping seat 61 and are threadedly connected to the threaded holes 31.

[0033] By threading adjustment bolts 611 into threaded holes 31 at various locations, the position of clamping base 61 on base plate 81 can be precisely adjusted, allowing the initial position of clamping block 62 on clamping plate 3 to be flexibly adjusted based on actual assembly requirements. This design provides a high degree of adjustability and adaptability to meet the needs of various assembly tasks, ensuring that the clamp always maintains optimal working condition under various working conditions.

[0034] Specifically, the threaded holes 31 on the clamp 3 are arranged at equal intervals, ensuring that they can provide a precise and uniform adjustment range during the use of the clamp. By connecting the bolts 611 to different threaded holes 31, the operator can quickly adjust the specific position of the clamp 61 without disassembling or resetting the clamp. This adjustment method greatly improves assembly flexibility, allowing the clamp 62 to be precisely aligned to the predetermined position of the panel 82 or other workpiece according to actual needs. Whether increasing the spacing between the clamps 61 to accommodate thicker panels 82 or reducing the spacing to accommodate thinner materials, the operation can be completed quickly and efficiently, thereby reducing adjustment time and labor costs.

[0035] like Figure 6As shown, the flip frame 1 is provided with two drive plates 11 that can move toward each other and a clamping driver for driving the two drive plates 11 to move toward each other. The clamping plate 3 is located between the two drive plates 11, and an elastic connection component is provided between the drive plate 11 and its adjacent clamping plate 3.

[0036] The tilting frame 1 is designed with two drive plates 11 that can move toward each other and a clamping actuator specifically designed to drive these two drive plates 11 toward each other. This actuator drives the two drive plates 11 to move synchronously or independently along a specific track or direction, thereby adjusting the position of the clamping plate 3. The clamping plate 3 is positioned between the two drive plates 11, ensuring a stable and uniform clamping effect during operation of the tilting frame 1.

[0037] To improve the system's adaptability and operational precision, elastic connectors are installed between the drive plate 11 and its adjacent clamping plate 3. These connectors, which can be springs, airbags, or other types of elastic materials, automatically adjust the force applied to and position of the clamping plate 3 during the movement of the drive plate 11. These connectors provide a necessary buffer between the clamping plate 3 and the drive plate 11, preventing damage to the clamping plate 3 or the drive plate 11 from excessive force. This effectively reduces wear and tear on the system, particularly during high-speed operation or under significant load fluctuations, and improves its service life.

[0038] Specifically, the elastic connection assembly not only ensures smoother relative movement between the drive plate 11 and the clamping plate 3, but also allows the clamping plate 3 to more precisely adhere to the target workpiece surface during the flipping process, providing a uniform clamping force. Furthermore, the presence of the elastic assembly enables the system to maintain a stable clamping effect even with slight variations in workpiece size or shape, further enhancing its ability to adapt to tolerances during assembly.

[0039] like Figure 6 As shown, the elastic connection assembly includes a connecting rod 131 and a connecting spring 132. The connecting rod 131 is arranged at equal intervals on the side of the splint 3 facing the driving plate 11. The connecting rod 131 extends along the width direction of the splint 3 and slides through the driving plate 11. A limiting ring 133 is provided at one end of the connecting rod 131 passing through the driving plate 11; the connecting spring 132 is sleeved on the connecting rod 131, and the connecting spring 132 is located between the driving plate 11 and the splint 3.

[0040] The connecting rods 131 are arranged at equal intervals on a side of the clamping plate 3 facing the driving plate 11 . The connecting rods 131 extend along the width direction of the clamping plate 3 and slide through the driving plate 11 .

[0041] Each connecting rod 131 is provided with a limit ring 133 at one end that passes through the drive plate 11. This limit ring 133 is designed to prevent the connecting rod 131 from falling off or shifting during sliding, ensuring that the connecting rod 131 remains stably positioned. Through mechanical engagement or elastic fit, the limit ring 133 effectively limits the range of motion of the connecting rod 131, preventing it from exceeding a predetermined sliding range.

[0042] Connecting spring 132 is mounted on connecting rod 131 and positioned between drive plate 11 and clamping plate 3. Its primary function is to provide elastic restoring force. When clamping plate 3 and drive plate 11 are displaced relative to each other, connecting spring 132 adjusts its elastic force by compressing or stretching to ensure that clamping plate 3 quickly returns to the optimal clamping position after the drive plate 11 moves. This elastic connection not only provides the necessary buffering effect, reducing damage to the system caused by external impact forces, but also ensures precise fit between clamping plate 3 and drive plate 11 through the spring's elastic adjustment.

[0043] like Figure 8 and Figure 9 As shown, the clamping drive includes a sliding plate 121, a swing arm 122, a linear drive 123 and a driving arm 124. The sliding plate 121 is slidingly arranged on the driving plate 11 along the length direction of the driving plate 11. There are two swing arms 122. The two swing arms 122 are arranged in parallel between the inner side of the flip frame 1 and the sliding plate 121. The two ends of the swing arm 122 are respectively rotatably connected to the inner side of the flip frame 1 and the sliding plate 121. The linear drive 123 is arranged in the flip frame 1 and has an output rod. The two ends of the driving arm 124 are respectively rotatably connected to one of the swing arms 122 and the output rod.

[0044] When the linear actuator 123 is activated, its output rod drives one end of the swing arm 122 to slide via the drive arm 124, causing the swing arm 122 to swing about its pivot point inside the tilting frame 1. This motion is transmitted to the drive plate 11 via the sliding plate 121 connected to the swing arm 122, causing the sliding plate 121 to slide smoothly along the length of the drive plate 11. The sliding plate 121 moves freely within the tilting frame 1, driving the clamping plate 3 to precisely clamp the substrate 81, achieving an efficient and stable clamping operation. To ensure a smooth sliding process, a sliding connection structure is used between the sliding plate 121 and the drive plate 11 to reduce friction and motion errors.

[0045] The clamping drive design consists of a sliding plate 121, a swing arm 122, a linear actuator 123, and a drive arm 124, providing a high degree of flexibility and precision. The two swing arms 122 are arranged parallel to each other between the inner side of the turning frame 1 and the sliding plate 121, and are pivotally connected to the inner side of the turning frame 1 and the sliding plate 121, respectively. The linear actuator 123 is connected to the drive arm 124 via an output rod. The ends of the drive arm 124 are pivotally connected to the swing arm 122 and the output rod, respectively, ensuring a smooth and efficient drive process. This design not only enables precise clamping adjustment, but also allows the clamping force and position to be adjusted according to actual needs, improving the flexibility and efficiency of the automated production line.

[0046] like Figure 3 As shown, the bracket 5 includes a lifting plate 51 elastically arranged at the bottom of the flip frame 1 along the longitudinal direction, and the top of the lifting plate 51 is provided with a supporting plate 52 arranged at equal intervals along the length direction of the splint 3. The two sides of the supporting plate 52 have inclined surfaces, and the top of the supporting plate 52 abuts against the bottom end of the splint 3. The flip frame 1 is flipped after the bottom edge abuts against the inclined surface of the supporting plate 52.

[0047] The bracket 5 includes a lifting plate 51 elastically arranged along the longitudinal direction at the bottom of the flip frame 1. Multiple support plates 52 are evenly arranged on the top of the lifting plate 51. These support plates 52 are evenly spaced along the length of the clamping plate 3 to ensure that the clamping plate 3 can be firmly supported and clamped. Each support plate 52 has inclined surfaces on both sides, which serve as guidance and support. When the top of the support plate 52 is in close contact with the bottom of the clamping plate 3, it provides a stable support force, ensuring that the clamping plate 3 remains accurately positioned during the flipping process. When the flip frame 1 flips, after the edge of the bottom end of the flip frame 1 contacts the inclined surface of the support plate 52, appropriate force is transmitted, causing the support plate 52 to overcome the elastic force and move downward. After the flip frame 1 flips 180 degrees, the support plate 52 is re-adapted to the bottom end of the flip frame 1 under the action of the elastic force, preventing the fixed substrate 81 from being disengaged from the clamping plate 3.

[0048] like Figure 3 As shown, the positioning fixture also includes a base plate 7, the flip frame 1 is rotatably set on the top of the base plate 7, and the bottom end of the lifting plate 51 is provided with a positioning column 53 that slides downward and penetrates the base plate 7. The positioning column 53 is sleeved with an elastic abutment element 54, and the elastic abutment element 54 is located between the base plate 7 and the lifting plate 51.

[0049] The positioning fixture also includes a base plate 7, with the flip frame 1 pivotally attached to the top of the base plate 7, ensuring smooth movement during rotation. A positioning post 53 slides downward through the bottom of the lifting plate 51, providing effective guidance and support between the lifting plate 51 and the base plate 7. Elastic abutment elements 54 mounted on the positioning post 53 further enhance the fixture's stability. These elastic elements ensure precise adjustment of the lifting plate 51 during operation and provide additional cushioning during rotation of the flip frame 1, mitigating impacts caused by violent movement. Furthermore, during rotation, the support plate 52 maintains close contact with the bottom of the flip frame 1, providing stable support for the substrate 81. After the flip frame 1 rotates 180 degrees, the support plate 52 accurately re-supports the substrate 81, preventing it from dislodging during the flipping motion. This process significantly enhances stability and safety, ensuring the substrate 81 remains securely clamped, minimizing potential misoperation or damage.

[0050] like Figure 6 As shown, the end positioning assembly 4 includes an abutment seat 41 and a transmission connecting rod 42. The abutment seat 41 is slidingly arranged between the two splints 3 along the length direction of the splint 3. There are two transmission connecting rods 42. The ends of the two transmission connecting rods 42 are rotatably connected to the ends of the splint 3 and the abutment seat 41 respectively.

[0051] When the two substrates 81 move toward each other, the transmission link 42 ensures that the abutment seat 41 can firmly and accurately contact the short side of the substrate 81, thereby achieving precise positioning of the substrate 81. The transmission link 42, which is rotatably connected to the substrate 81, can effectively transmit the motion to the abutment seat 41, ensuring the stability and accuracy of the substrate 81 during the clamping process.

[0052] The abutment seat 41 slides along the length of the clamping plates 3 and is positioned between the two clamping plates 3, ensuring that it can adjust smoothly to the movement of the clamping plates 3. There are two transmission links 42, each connected to the end of the clamping plate 3 and the abutment seat 41 through a rotational connection. This structural design allows the transmission links 42 to synchronously act on the abutment seat 41 as the clamping plates 3 move, precisely controlling their motion trajectory and ensuring that each clamping operation accurately positions the substrate 81.

[0053] like Figure 6 As shown, a pressure seat 43 capable of moving along the length direction of the clamping plate 3 is further provided at the end of the abutting seat 41 , and an elastic buffer element 44 is provided between the pressure seat 43 and the abutting seat 41 .

[0054] To prevent the rigid force from scratching or deforming the base plate 81 during operation, the end of the abutment seat 41 is equipped with a pressure seat 43 that can move along the length of the clamping plate 3. The pressure seat 43 and the abutment seat 41 are connected by an elastic buffer element 44, so that the pressure seat 43 can accurately abut the short side of the base plate 81 in an elastic manner, avoiding damage caused by hard contact.

[0055] The elastic buffer element 44 not only absorbs and mitigates external force impacts but also adjusts appropriately to slight positional changes in the substrate 81, ensuring that the pressure seat 43 does not apply excessive or insufficient force when contacting the substrate 81. This elastic design provides a flexible contact for the pressure seat 43, thus avoiding potential problems associated with a rigid connection, such as scratching or deformation of the substrate 81 surface. This elastic design provides additional protection, especially when handling delicate or fragile substrates 81.

[0056] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the appended claims.

Claims

1. A quick positioning fixture for a handle guard plate used in smart lock assembly, used to fix the base plate in the handle guard plate while fixing the panel in the handle guard plate, characterized in that: The cam is secured to the chassis and has two members, one of which is a member of a two-piece construction, the other of which is a member of a two-piece construction, the other of which is a member of a two-piece construction, the other of which is a member of a two-piece construction, the other of which is a member of a two-piece construction, the other of which is a member of a two-piece construction, the other of which is a member of a two-piece construction, the The flip frame is provided with two drive plates capable of moving toward each other and a clamping driver for driving the two drive plates to move toward each other, the clamping plate is located between the two drive plates, and an elastic connection component is provided between the drive plate and the adjacent clamping plate; The elastic connection assembly includes a connecting rod and a connecting spring, wherein the connecting rods are arranged at equal intervals on the side of the clamping plate facing the driving plate, the connecting rods extend along the width direction of the clamping plate and slide through the driving plate, and a limiting ring is provided at one end of the connecting rod passing through the driving plate; the connecting spring is sleeved on the connecting rod and is located between the driving plate and the clamping plate; The bracket includes a lifting plate elastically arranged at the bottom of the flip frame along the longitudinal direction, and the top of the lifting plate is provided with supporting plates arranged at equal intervals along the length direction of the clamping plate. Both sides of the supporting plates have inclined surfaces, and the top of the supporting plate abuts the bottom end of the clamping plate. The flip frame flips after the bottom edge abuts on the inclined surface of the supporting plate.

2. A quick positioning fixture for a handle guard plate for assembling a smart lock according to claim 1, characterized in that: The clamping drive includes a sliding plate, a swing arm, a linear drive and a driving arm. The sliding plate is slidably arranged on the driving plate along the length direction of the driving plate. There are two swing arms, which are arranged in parallel between the inner side of the flip frame and the sliding plate. The two ends of the swing arm are respectively rotatably connected to the inner side of the flip frame and the sliding plate. The linear drive is arranged in the flip frame and has an output rod. The two ends of the driving arm are respectively rotatably connected to one of the swing arms and the output rod.

3. A quick positioning fixture for a handle guard plate for assembling a smart lock according to claim 1, characterized in that: The positioning fixture also includes a base plate, the flip frame is rotatably arranged on the top of the base plate, the bottom end of the lifting plate is provided with a positioning column that slides downward and penetrates the base plate, and the positioning column is sleeved with an elastic abutment element, which is located between the base plate and the lifting plate.

4. A quick positioning fixture for a handle guard plate for assembling a smart lock according to claim 1, characterized in that: The end positioning assembly includes an abutment seat and a transmission connecting rod. The abutment seat is slidably arranged between the two clamping plates along the length direction of the clamping plates. There are two transmission connecting rods, and the ends of the two transmission connecting rods are respectively rotatably connected to the ends of the clamping plates and the abutment seat.

5. A quick positioning fixture for a handle guard plate for assembling a smart lock according to claim 4, characterized in that: A pressure seat that can move along the length direction of the clamping plate is further provided at the end of the abutting seat, and an elastic buffer element is provided between the pressure seat and the abutting seat.

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