Screw locking mechanism and adsorption type full-automatic screw locking machine

Abstract

The screw locking mechanism comprises a vertical screw locking mechanism, the vertical screw locking mechanism comprises a vertical guide rail, a vertical movable seat is arranged on the vertical guide rail, a first vertical air cylinder is fixedly arranged on the vertical movable seat, a first servo motor is vertically arranged on the vertical movable seat in a sliding mode, and a second servo motor is arranged on the first servo motor in a sliding mode. A buffer assembly is connected between the first servo motor and a working shaft of the first vertical air cylinder, the first vertical air cylinder drives the first servo motor to move up and down through the buffer assembly, a bit part is installed on the working shaft of the first servo motor, an auxiliary positioning mechanism is arranged at the lower end of the vertical movable seat, and the bit part downwards penetrates through the auxiliary positioning mechanism. According to the screw locking mechanism, through precise design and reasonable structural layout, efficient, precise and flexible screw locking operation is achieved, meanwhile, the service life of equipment is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of screw fastening machine technology, specifically to a screw fastening mechanism and an adsorption-type fully automatic screw fastening machine. Background Technology

[0002] Fully automatic screw fastening machines, also known as fully automatic screw fastening machines or automatic screw feeders, are machines used to replace traditional manual screw tightening. Fully automatic screw fastening machines are divided into two main categories: three-axis fully automatic screw fastening machines and multi-axis fully automatic screw fastening machines. Three-axis fully automatic screw fastening machines are further divided into suction-type and pneumatic-type fully automatic screw fastening machines based on their feeding method. The suction-type fully automatic screw fastening machine uses the suction force generated by compressed air from the electric screwdriver bit on the vertical screw fastening mechanism to pick up a single screw, then positions it on the product's hole, and the electric screwdriver automatically fastens it onto the product. The suction type is generally suitable for screws that are relatively short, lightweight, and cannot be tightened by air-blowing methods. Simultaneously, the upper surface of the screw head can form a certain degree of airtightness with the vacuum suction head cavity of the electric screwdriver, making it suitable for most screws, especially those that do not meet the length-to-diameter ratio requirements.

[0003] As described in the published patent CN206169617U, "A Novel Automatic Screw-Locking Robot", the current tightening action of hexagonal screws is mainly carried out by manual operation and special equipment operation. Manual operation requires a large number of personnel, is labor-intensive, has a long continuous operation time, and has low production efficiency. Existing special equipment is costly, has poor versatility, and cannot meet the tightening needs of screws of different specifications.

[0004] In summary, existing automatic screw fastening machines have the problem of not being able to meet the tightening requirements of screws of different specifications during use. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution for a fully automatic suction screw fastening machine that can solve the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A screw-locking mechanism, including a vertical screw-locking mechanism;

[0008] The vertical screw-locking mechanism includes a vertical guide rail, a vertical movable seat is provided on the vertical guide rail, a first vertical cylinder is fixed on the vertical movable seat, a first servo motor is vertically slidably provided on the vertical movable seat, and a buffer assembly is connected between the first servo motor and the working shaft of the first vertical cylinder.

[0009] The first vertical cylinder drives the first servo motor to move up and down through the buffer assembly, and a bit is installed on the working shaft of the first servo motor.

[0010] The lower end of the vertical movable seat is equipped with an auxiliary positioning mechanism, through which the bit passes downward.

[0011] As a further embodiment of this utility model: the buffer assembly includes a buffer mounting plate fixed on the working shaft of the first vertical cylinder, buffer mounting rods are respectively sleeved on the left and right sides of the buffer mounting plate, the upper end of the buffer mounting rod extends upward through the buffer mounting plate, a limiting block is fixed at the upper end of the buffer mounting rod and fits into the upper end face of the buffer mounting plate, and a motor mounting seat is fixed at the lower end of the buffer mounting rod.

[0012] An elastic element is fitted onto the buffer mounting rod. The upper end of the elastic element abuts against the lower end face of the buffer mounting plate, and the lower end of the elastic element abuts against the upper end face of the motor mounting base. The first servo motor is fixed on the motor mounting base.

[0013] As a further embodiment of this utility model: a vertical buffer guide rail is fixed on the vertical movable seat, the motor mounting seat slides on the buffer guide rail, a motor mounting plate is fixed on the motor mounting seat, the first servo motor is fixed on the motor mounting plate, and the working axis of the first servo motor passes downward through the motor mounting plate.

[0014] As a further embodiment of this utility model: the auxiliary positioning mechanism includes an auxiliary mounting plate fixed to the lower end of the vertical movable seat, an auxiliary mounting groove is provided on the auxiliary mounting plate, an L-shaped auxiliary function plate is installed in the auxiliary mounting groove, and limiting fixing holes communicating with the auxiliary mounting groove are respectively provided on the left and right sides of the auxiliary mounting plate, and auxiliary limiting bolts for abutting and limiting the L-shaped auxiliary function plate are installed in the limiting fixing holes.

[0015] The rear end face of the L-shaped auxiliary function plate is slidably mounted on the buffer guide rail. The auxiliary mounting plate is provided with a vertical guide mounting hole, and a guide post is fixed on the L-shaped auxiliary function plate that slides up and down in the guide mounting hole.

[0016] The L-shaped auxiliary function plate has a vertical through-hole for the bit to pass through downwards.

[0017] As a further embodiment of this utility model: a guide mounting tube communicating with the auxiliary function hole is installed below the auxiliary function hole, an adsorption air tube communicating with the inside of the guide mounting tube is installed on the outer wall of the guide mounting tube, the lower end of the bit is accommodated in the guide mounting tube, and a screw receiving position is preset between the lower end of the bit and the lower opening of the guide mounting tube.

[0018] As a further embodiment of this utility model: the auxiliary functional hole is provided with a first, second, third and fourth mounting groove from top to bottom, the cross-sectional diameter of the third mounting groove is larger than that of the fourth mounting groove, and the cross-sectional diameter of the second mounting groove is larger than that of the first mounting groove and the third mounting groove.

[0019] The second, third, and fourth mounting slots are respectively equipped with second, third, and fourth air inlet limiting components. The second, third, and fourth air inlet limiting components are respectively provided with second, third, and fourth air inlet holes. The bit protrudes downward from the second, third, and fourth air inlet holes. The inner walls of the second, third, and fourth air inlet holes are arranged obliquely upward in sequence.

[0020] As a further embodiment of this utility model: a mounting chuck for mounting bit parts is fixedly installed on the working shaft of the first servo motor.

[0021] An adsorption-type fully automatic screw fastening machine includes a base, a horizontal support on the base, a horizontal guide rail on the horizontal support, a horizontal movable seat on the horizontal guide rail, and a screw fastening mechanism as described above on the horizontal movable seat. The vertical guide rail is disposed on the horizontal movable seat.

[0022] As a further embodiment of this utility model: a longitudinal guide rail is provided on the base, and a longitudinal movable seat is provided on the longitudinal guide rail, and the product to be processed is fixed on the longitudinal movable seat.

[0023] As a further embodiment of this utility model: a screw feeding mechanism is provided on the base. The screw feeding mechanism includes a feeding machine box fixed on the base. The feeding machine box is provided with a screw feeding assembly and a screw positioning groove. A positioning turntable is installed in the screw positioning groove. A plurality of screw receiving grooves are evenly provided around the periphery of the positioning turntable. A feeding opening that aligns with the screw receiving groove is opened on the side wall of the screw positioning groove. The screw feeding assembly includes a feeding track. The feeding opening aligns with the feeding track.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] This utility model screw-locking mechanism, through precise design and reasonable structural layout, achieves efficient, accurate and flexible screw-locking operation, while also helping to extend the service life of the equipment and reduce maintenance costs. It solves the problem that existing automatic screw-locking machines cannot meet the screw-locking requirements of different specifications during use. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural view of the screw-locking machine of this utility model;

[0027] Figure 2 This is a three-dimensional structural view of the vertical screw-locking mechanism in this utility model;

[0028] Figure 3 yes Figure 2 A partial view at point A in the middle;

[0029] Figure 4 yes Figure 2 A partial view at point B in the middle;

[0030] Figure 5 This is a left view of the vertical screw-locking mechanism in this utility model;

[0031] Figure 6 yes Figure 5 A cross-sectional view along the CC direction;

[0032] Figure 7 yes Figure 6 A partial view at point D;

[0033] Figure 8 This is a top view of the screw-locking machine in this utility model;

[0034] Figure 9 yes Figure 8 A partial view at point E in the middle;

[0035] The reference numerals and names in the figure are as follows:

[0036] Vertical screw-locking mechanism - 100, vertical guide rail - 101, vertical movable seat - 102, first vertical cylinder - 103, first servo motor - 104, buffer assembly - 105, screwdriver bit - 106, auxiliary positioning mechanism - 107, buffer mounting plate - 108, buffer mounting rod - 109, limit block - 110, motor mounting seat - 111, elastic element - 112, buffer guide rail - 113, motor mounting plate - 114, auxiliary mounting plate - 115, auxiliary mounting groove - 116, L-shaped auxiliary function plate - 117, limit fixing hole - 118, guide mounting hole - 119, guide post - 120, auxiliary function hole - 121, guide mounting tube - 122, adsorption air tube - 123, screw receiving position - 124, the first Mounting slot 1-125, mounting slot 2-126, mounting slot 3-127, mounting slot 4-129, second air inlet limiter-130, third air inlet limiter-131, fourth air inlet limiter-132, second air inlet-133, third air inlet-134, fourth air inlet-135, mounting chuck-136, base-137, transverse support-138, transverse guide rail-139, transverse movable seat-140, longitudinal guide rail-141, longitudinal movable seat-142, screw feeding mechanism-143, feeding machine housing-144, screw feeding assembly-145, screw positioning slot-146, positioning turntable-147, screw receiving slot-148, feeding opening-149, feeding track-150. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] Please see Figure 1-9 A screw-locking mechanism, comprising a vertical screw-locking mechanism 100;

[0039] The vertical screw-locking mechanism 100 includes a vertical guide rail 101, a vertical movable seat 102 is provided on the vertical guide rail 101, a first vertical cylinder 103 is fixed on the vertical movable seat 102, a first servo motor 104 is vertically slidably provided on the vertical movable seat 102, and a buffer assembly 105 is connected between the working shaft of the first servo motor 104 and the first vertical cylinder 103.

[0040] The first vertical cylinder 103 drives the first servo motor 104 to move up and down through the buffer assembly 105. A bit 106 is installed on the working shaft of the first servo motor 104.

[0041] The lower end of the vertical movable seat 102 is provided with an auxiliary positioning mechanism 107, and the bit part 106 passes downward through the auxiliary positioning mechanism 107;

[0042] like Figure 2 As shown, the combination of the vertical movable seat 102 on the vertical guide rail 101, the first servo motor 104 and the bit 106 set thereon can achieve precise control of the screw. The auxiliary positioning mechanism 107 further ensures the accurate position of the screw during the locking process and improves the overall screw locking accuracy.

[0043] The combined use of the first vertical cylinder 103 and the buffer assembly 105 enables the first servo motor 104 to move up and down smoothly. The buffer assembly 105 helps to reduce vibration and impact, protect the equipment, ensure operational stability, and enhance the operational flexibility of the entire device.

[0044] Thanks to its automated design, the first servo motor 104 can directly drive the screwdriver bit 106 to tighten screws, reducing the need for manual intervention and greatly improving the efficiency of screw tightening.

[0045] The buffer assembly 105 not only helps reduce vibration during operation, but also reduces wear between mechanical parts, thereby helping to extend the service life of the entire screw-locking mechanism;

[0046] This design can adjust the position of the vertical movable seat 102 according to different application scenarios, and adjust the height of the screwdriver bit 106 through the vertical movable seat 102. The stroke of screw tightening is controlled by the first vertical cylinder 103. It has strong adaptability and flexibility and is suitable for the tightening needs of screws of different specifications.

[0047] This utility model screw-locking mechanism, through precise design and reasonable structural layout, achieves efficient, accurate and flexible screw-locking operation, while also helping to extend the service life of the equipment and reduce maintenance costs. It solves the problem that existing automatic screw-locking machines cannot meet the screw-locking requirements of different specifications during use.

[0048] In this embodiment of the present invention, the buffer assembly 105 includes a buffer mounting plate 108 fixed on the working shaft of the first vertical cylinder 103. Buffer mounting rods 109 are respectively sleeved on the left and right sides of the buffer mounting plate 108. The upper end of the buffer mounting rod 109 extends upward through the buffer mounting plate 108. A limiting block 110 is fixed at the upper end of the buffer mounting rod 109 and engages with the upper end surface of the buffer mounting plate 108. A motor mounting seat 111 is fixed at the lower end of the buffer mounting rod 109.

[0049] An elastic element 112 is sleeved on the buffer mounting rod 109. The upper end of the elastic element 112 abuts against the lower end face of the buffer mounting plate 108, and the lower end of the elastic element 112 abuts against the upper end face of the motor mounting base 111. The first servo motor 104 is fixed on the motor mounting base 111.

[0050] like Figure 3 As shown, by setting buffer mounting rods 109 on the left and right sides of the buffer mounting plate 108 respectively, and sleeve elastic elements 112 on the buffer mounting rods 109, stable support and shock absorption can be provided when the first vertical cylinder 103 drives the first servo motor 104 to move up and down, which helps to reduce the damage to the equipment caused by vibration or impact and ensures the stability during the screw tightening operation.

[0051] The design of the limiting block 110 and the upper end face of the buffer mounting plate 108 limiting and abutting each other can effectively prevent the buffer mounting rod 109 from moving excessively, thereby ensuring the precise control of the position of the first servo motor 104 and the bit 106 on it during operation and improving the precision of screw tightening.

[0052] The presence of the elastic element 112 not only absorbs vertical vibrations but also mitigates direct collisions between mechanical parts, reducing wear. This design helps protect critical components from damage, thereby extending the service life of the entire device.

[0053] Depending on the different load requirements, the elastic force of the elastic element 112 can be adjusted to meet the needs of various working conditions. This makes the screw-locking mechanism more adaptable and flexible, enabling it to maintain efficient operation in different application scenarios.

[0054] Thanks to the modular design, components such as the buffer mounting plate 108, buffer mounting rod 109, and elastic element 112 are easy to disassemble and replace, simplifying the maintenance process and reducing maintenance costs.

[0055] In this embodiment of the utility model, a vertical buffer guide rail 113 is fixed on the vertical movable seat 102, the motor mounting seat 111 slides on the buffer guide rail 113, a motor mounting plate 114 is fixed on the motor mounting seat 111, the first servo motor 104 is fixed on the motor mounting plate 114 and the working axis of the first servo motor 104 passes downward through the motor mounting plate 114.

[0056] like Figure 2 As shown, by setting a vertical buffer guide rail 113 on the vertical movable seat 102 and allowing the motor mounting seat 111 to slide on it, the first servo motor 104 can be ensured to move more smoothly and accurately when moving up and down. This design reduces unnecessary swaying or offset and improves the accuracy of screw tightening position;

[0057] The motor mounting base 111 is connected to the vertical movable base 102 via the buffer guide rail 113, making the entire structure more stable. This not only helps prevent displacement caused by external factors (such as vibration), but also ensures long-term stable operation of the equipment and reduces the failure rate.

[0058] The motor mounting plate 114 serves as a fixed support point for the first servo motor 104. Its design ensures that the working shaft of the servo motor can pass directly and effectively downwards, thereby accurately transmitting power to the bit 106. This design optimizes the force transmission path and improves work efficiency.

[0059] During use, the position of the motor mounting base 111 on the buffer guide rail 113 can be adjusted according to actual needs to adapt to different working requirements and space constraints, so that the equipment can be used in a variety of application scenarios, increasing its practicality.

[0060] Because the use of buffer guide rail 113 to guide the movement of motor mounting base 111, coupled with the shock absorption provided by elastic element 112, reduces wear between mechanical parts, which helps to extend the service life of the equipment and reduce maintenance costs.

[0061] In this embodiment of the utility model, the auxiliary positioning mechanism 107 includes an auxiliary mounting plate 115 fixed to the lower end of the vertical movable seat 102. An auxiliary mounting groove 116 is provided on the auxiliary mounting plate 115. An L-shaped auxiliary function plate 117 is installed in the auxiliary mounting groove 116. Limiting and fixing holes 118 communicating with the auxiliary mounting groove 116 are respectively provided on the left and right sides of the auxiliary mounting plate 115. An auxiliary limiting bolt for abutting and limiting the L-shaped auxiliary function plate 117 is installed in the limiting and fixing holes 118.

[0062] The rear end face of the L-shaped auxiliary function plate 117 is slidably mounted on the buffer guide rail 113. The auxiliary mounting plate 115 is provided with a vertical guide mounting hole 119. The L-shaped auxiliary function plate 117 is fixed with a guide post 120 that slides up and down in the guide mounting hole 119.

[0063] The L-shaped auxiliary function plate 117 has a vertical through-hole 121, through which the bit part 106 extends downward.

[0064] like Figure 2 and Figure 4 As shown, by opening an auxiliary mounting groove 116 on the auxiliary mounting plate 115 and installing an L-shaped auxiliary function plate 117, and by using the guide post 120 to cooperate with the vertical guide mounting hole 119, the accuracy and stability of the L-shaped auxiliary function plate 117 when moving up and down are ensured. The bit 106 passes through the auxiliary function hole 121 downwards, making the screw more accurately positioned during the tightening process.

[0065] The auxiliary mounting plate 115 has limit fixing holes 118 on its left and right sides respectively. By adjusting the auxiliary limit bolts, the L-shaped auxiliary function plate 117 is engaged and limited. The vertical position of the L-shaped auxiliary function plate 117 can be easily adjusted to accommodate screws or workpieces of different sizes and types, thus improving the flexibility and adaptability of the entire device.

[0066] The sliding installation design of the rear end face of the L-shaped auxiliary function plate 117 on the buffer guide rail 113, as well as the use of the limiting fixing hole 118 and the auxiliary limiting bolt, simplifies the installation and disassembly process of the L-shaped auxiliary function plate 117, facilitates daily maintenance and replacement of parts, and reduces maintenance costs and time.

[0067] The guide post 120 slides up and down within the guide mounting hole 119, which not only provides additional support and guidance, but also increases the stability and reliability of the L-shaped auxiliary function plate 117 during operation, reducing the occurrence of offset or instability caused by external factors.

[0068] In this embodiment of the utility model, a guide mounting tube 122 communicating with the auxiliary functional hole 121 is installed below the auxiliary functional hole 121. An adsorption air tube 123 communicating with the inside of the guide mounting tube 122 is installed on the outer wall of the guide mounting tube 122. The lower end of the bit 106 is accommodated in the guide mounting tube 122, and a screw receiving position 124 is preset between the lower end of the bit 106 and the lower end opening of the guide mounting tube 122.

[0069] like Figure 6 As shown, the design of the guide mounting tube 122 ensures that the bit 106 has a more precise guide path when performing screw tightening operations. This helps to keep the screw accurately aligned when entering the target hole and reduces operation failures caused by offset or misalignment.

[0070] By installing an adsorption air tube 123 connected to the interior on the outer wall of the guide mounting tube 122, the screw can be stably adsorbed in the screw receiving position 124 between the lower end of the bit 106 and the lower opening of the guide mounting tube 122 using the principle of negative pressure. This method not only improves the screw gripping efficiency but also ensures the stability of the screw during movement, avoiding the problem of screws falling or being lost.

[0071] Because the screws can be firmly held in the predetermined position, the time and effort required to manually adjust the screw position are reduced, thereby significantly improving the overall efficiency of screw tightening. In addition, the precise positioning also reduces the possibility of retrying, further speeding up the workflow.

[0072] This design allows the system to adapt to screws of different lengths and types. By simply adjusting the pressure of the adsorption tube 123 and the size of the guide tube 122, it can meet the needs of various application scenarios, increasing the versatility and flexibility of the system.

[0073] Using the adsorption tubing 123 to fix the screws reduces the need for manual operation and lowers the labor intensity of the operators.

[0074] In this embodiment of the utility model, the auxiliary functional hole 121 is provided with first, second, third and fourth mounting grooves 129 from top to bottom. The cross-sectional diameter of the third mounting groove 127 is larger than that of the fourth mounting groove 129, and the cross-sectional diameter of the second mounting groove 126 is larger than that of the first mounting groove 125 and the third mounting groove 127.

[0075] The second, third, and fourth mounting slots 129 are respectively equipped with second, third, and fourth air inlet limiting members 132. The second, third, and fourth air inlet limiting members 132 are respectively provided with second, third, and fourth air inlet holes 135. The bit 106 extends downward through the second, third, and fourth air inlet holes 135. The inner walls of the second, third, and fourth air inlet holes 135 are arranged obliquely upward in sequence.

[0076] like Figure 6 As shown, by installing second, third, and fourth air inlet limiting members 132 in the second, third, and fourth mounting slots 129 respectively, the second, third, and fourth air inlets 135 can form a gradually contracting airflow channel, which helps to better control the airflow in the auxiliary function hole 121, thereby helping to more accurately control the adsorption airflow in the guide mounting tube 122, ensuring that the screw can be accurately adsorbed and positioned on the bit 106, thereby improving the accuracy of the screw tightening operation. Correspondingly, if the adsorption airflow in the guide mounting tube 122 is controlled only by the adsorption air pipe 123, there will be a problem of limited adjustment range of the adsorption airflow size.

[0077] The second, third, and fourth mounting slots 129 of different diameters, in conjunction with the corresponding second, third, and fourth air inlet limiters 132, allow the second, third, and fourth air inlets 135 to be adjusted according to actual needs, thereby adjusting the airflow within the guide mounting tube 122. This flexible airflow control helps to adapt to the needs of screws of different types and sizes.

[0078] Each air intake limiting component is independently installed in its corresponding mounting slot. Since the cross-sectional diameter of the second mounting slot 126 is larger than that of the first mounting slot 125 and the third mounting slot 127, the second air intake limiting component 130 can be limited and installed within the second mounting slot 126. The second air intake limiting component 130 can also abut and limit the third and fourth air intake limiting components 132, thus facilitating disassembly and replacement. If a component malfunctions or requires cleaning, repair or maintenance can be performed quickly without affecting the normal operation of other parts, reducing maintenance costs and time consumption.

[0079] In one embodiment, the second air intake limiter 130 is made of silicone material for easy installation and removal.

[0080] In this embodiment of the utility model, a mounting chuck 136 for mounting the bit 106 is fixedly installed on the working shaft of the first servo motor 104.

[0081] like Figure 1 As shown, the design of the mounting chuck 136 makes bit replacement quick and easy. Operators can quickly change the corresponding bit according to different screw types or work requirements without complicated tools or long operation interruptions, thereby improving work efficiency.

[0082] Because it can quickly change different types of bits, this design increases the application range and flexibility of the equipment. Whether it is a flathead screw, a Phillips head screw or other special types of screws, you can complete the work by simply selecting the appropriate bit, which can meet the needs of a variety of application scenarios.

[0083] The mounting chuck 136 is typically designed with a precise fixing mechanism to ensure that the bit is securely mounted on the working shaft of the servo motor, reducing shaking or offset during operation. This helps to improve the accuracy of screw tightening and avoids problems such as screw damage or incomplete tightening caused by loose bit.

[0084] The secure installation method reduces the risk of the bit loosening or flying out during high-speed rotation, ensuring the safety of the operator.

[0085] In this embodiment of the utility model, an adsorption-type fully automatic screw fastening machine includes a base 137, a horizontal support 138 is provided on the base 137, a horizontal guide rail 139 is provided on the horizontal support 138, a horizontal movable seat 140 is provided on the horizontal guide rail 139, and the aforementioned screw fastening mechanism is provided on the horizontal movable seat 140. The vertical guide rail 101 is provided on the horizontal movable seat 140.

[0086] like Figure 1 and Figure 8 As shown, by setting a transverse support 138 on the base 137 and configuring a transverse guide rail 139 and a transverse movable seat 140 on the transverse support 138, the screw tightening operation is fully automated; this not only reduces the reliance on manual operation, but also improves the overall automation level of the production line.

[0087] The horizontal movable seat 140 can move freely on the horizontal guide rail 139. Combined with the design of the vertical guide rail 101 in the screw locking mechanism, the device can flexibly adjust its working position and is suitable for workpieces of different sizes and shapes, greatly enhancing the operational flexibility and application range of the device.

[0088] The automated horizontal and vertical movement mechanism, coupled with the efficient screw-locking mechanism, can significantly speed up screw tightening, reduce downtime, and thus greatly improve production efficiency.

[0089] The precision-designed guide rail system ensures that the components on the horizontal movable seat 140 and the vertical guide rail 101 can move accurately along a predetermined path, providing high-precision position control capabilities; this is especially important for screw tightening operations that require high precision, and helps to improve product quality.

[0090] The overall structure is reasonably designed, with each component clearly modularized, making it easy to install, disassemble, and maintain. At the same time, the use of automated design reduces the difficulty of operation, allowing even non-professionals to quickly get started.

[0091] Integrating the screw-locking mechanism into the transverse movable seat 140 effectively utilizes space, making the entire device more compact. This not only saves factory space but also facilitates layout adjustments or production line expansion according to actual needs.

[0092] In this embodiment of the utility model, a longitudinal guide rail 141 is provided on the base 137, and a longitudinal movable seat 142 is provided on the longitudinal guide rail 141, and the product to be processed is fixed on the longitudinal movable seat 142.

[0093] like Figure 1 As shown, the design of the longitudinal guide rail 141 and the longitudinal movable seat 142 enables precise position adjustment of the product to be processed. This design ensures that the product is in the optimal working position during processing, thereby improving the accuracy of operations such as screw tightening.

[0094] The longitudinal movable seat 142 can move freely on the longitudinal guide rail 141, enabling the equipment to adapt to products of different sizes and shapes. This flexibility means that the equipment can handle a variety of workpieces, increasing the applicability and versatility of the equipment.

[0095] The automated longitudinal movement mechanism reduces the need for manual intervention and speeds up the production line. Operators can quickly adjust the position of the longitudinal movable seat 142 through programming or control systems, thereby shortening preparation time and improving overall production efficiency.

[0096] In this embodiment of the present invention, a screw feeding mechanism 143 is provided on the base 137. The screw feeding mechanism 143 includes a feeding machine box 144 fixed on the base 137. The feeding machine box 144 is provided with a screw feeding assembly 145 and a screw positioning groove 146. A positioning turntable 147 is installed in the screw positioning groove 146. A plurality of screw receiving grooves 148 are evenly provided around the periphery of the positioning turntable 147. A feeding opening 149 is provided on the side wall of the screw positioning groove 146 to align with the screw receiving groove 148. The screw feeding assembly 145 includes a feeding track 150. The feeding opening 149 aligns with the feeding track 150.

[0097] like Figure 8 and Figure 9 As shown, in one embodiment, the screw feeding assembly 145 adopts a structure of vibratory feeder and linear vibration motor, which is a common structure in the prior art and will not be described in detail here.

[0098] The design of the screw positioning groove 146 and the positioning turntable 147, especially the multiple screw receiving grooves 148 evenly arranged around the periphery of the positioning turntable 147, ensures that each screw delivered can be accurately aligned with the bit part 106, reducing operation failures or errors caused by screw position deviations and improving the accuracy of operation.

[0099] The screw feeding assembly 145, together with the screw positioning groove 146 and the positioning turntable 147, achieves fully automated processing of screws from feeding to positioning, making it easy for the screwdriver bit 106 to pick up screws. This design simplifies the operator's workflow, reduces labor intensity, and allows even non-professionals to quickly get started.

[0100] By adjusting the number and layout of the screw receiving slots 148 on the positioning turntable 147, customized configurations can be made according to different screw sizes and types, enhancing the flexibility and adaptability of the equipment. Furthermore, the alignment and cooperation between the feed opening 149 and the discharge port of the screw feeding assembly 145 ensures a stable supply of screws of different specifications.

[0101] The feed opening 149 is aligned with the discharge port of the screw feeding assembly 145, so that the screw is fed into the screw receiving groove 148 through the feed opening 149. Then, the positioning turntable 147 rotates. With the cooperation of the positioning turntable 147 and the inner wall of the screw positioning groove 146, the screw is circumferentially transferred to the designated position. During the process of the screw being transferred in the screw positioning groove 146, the nut is placed above the screw receiving groove 148 to prevent the screw from falling off.

[0102] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A screw-locking mechanism, characterized in that, Includes a vertical screw-locking mechanism (100); The vertical screw-locking mechanism (100) includes a vertical guide rail (101), a vertical movable seat (102) is provided on the vertical guide rail (101), a first vertical cylinder (103) is fixed on the vertical movable seat (102), a first servo motor (104) is vertically slidably provided on the vertical movable seat (102), and a buffer assembly (105) is connected between the working shaft of the first servo motor (104) and the first vertical cylinder (103). The first vertical cylinder (103) drives the first servo motor (104) to move up and down through the buffer assembly (105), and a bit (106) is installed on the working shaft of the first servo motor (104). The lower end of the vertical movable seat (102) is provided with an auxiliary positioning mechanism (107), and the bit (106) passes downward through the auxiliary positioning mechanism (107).

2. The screw-locking mechanism according to claim 1, characterized in that, The buffer assembly (105) includes a buffer mounting plate (108) fixed on the working shaft of the first vertical cylinder (103). Buffer mounting rods (109) are respectively sleeved on the left and right sides of the buffer mounting plate (108). The upper end of the buffer mounting rod (109) extends upward through the buffer mounting plate (108). A limiting block (110) is fixed at the upper end of the buffer mounting rod (109) and engages with the upper end face of the buffer mounting plate (108). A motor mounting seat (111) is fixed at the lower end of the buffer mounting rod (109). An elastic element (112) is sleeved on the buffer mounting rod (109). The upper end of the elastic element (112) abuts against the lower end face of the buffer mounting plate (108), and the lower end of the elastic element (112) abuts against the upper end face of the motor mounting base (111). The first servo motor (104) is fixed on the motor mounting base (111).

3. A screw-locking mechanism according to claim 2, characterized in that, A vertical buffer guide rail (113) is fixed on the vertical movable seat (102), and the motor mounting seat (111) slides on the buffer guide rail (113). A motor mounting plate (114) is fixed on the motor mounting seat (111), and the first servo motor (104) is fixed on the motor mounting plate (114) and the working axis of the first servo motor (104) passes downward through the motor mounting plate (114).

4. A screw-locking mechanism according to claim 3, characterized in that, The auxiliary positioning mechanism (107) includes an auxiliary mounting plate (115) fixed at the lower end of the vertical movable seat (102). An auxiliary mounting groove (116) is provided on the auxiliary mounting plate (115). An L-shaped auxiliary function plate (117) is installed in the auxiliary mounting groove (116). Limiting and fixing holes (118) communicating with the auxiliary mounting groove (116) are respectively provided on the left and right sides of the auxiliary mounting plate (115). An auxiliary limiting bolt for abutting and limiting the L-shaped auxiliary function plate (117) is installed in the limiting and fixing hole (118). The rear end face of the L-shaped auxiliary function plate (117) is slidably mounted on the buffer guide rail (113). A vertical guide mounting hole (119) is provided on the auxiliary mounting plate (115). A guide post (120) is fixed on the L-shaped auxiliary function plate (117) and slides up and down in the guide mounting hole (119). The L-shaped auxiliary function plate (117) has a vertical through-hole (121) through which the bit (106) passes downward.

5. A screw-locking mechanism according to claim 4, characterized in that, A guide mounting tube (122) communicating with the auxiliary function hole (121) is installed below the auxiliary function hole (121). An adsorption gas tube (123) communicating with the inside of the guide mounting tube (122) is installed on the outer wall of the guide mounting tube (122). The lower end of the bit (106) is housed in the guide mounting tube (122), and a screw receiving position (124) is preset between the lower end of the bit (106) and the lower end opening of the guide mounting tube (122).

6. A screw-locking mechanism according to claim 5, characterized in that, The auxiliary function hole (121) is provided with first, second, third and fourth mounting grooves (129) from top to bottom. The cross-sectional diameter of the third mounting groove (127) is larger than that of the fourth mounting groove (129), and the cross-sectional diameter of the second mounting groove (126) is larger than that of the first mounting groove (125) and the third mounting groove (127). The second, third and fourth mounting slots (129) are respectively equipped with second, third and fourth air intake limiters (132), and second, third and fourth air intake holes (135) are respectively opened on the second, third and fourth air intake limiters (132). The bit (106) passes through the second, third and fourth air intake holes (135) downwards, and the inner walls of the second, third and fourth air intake holes (135) are arranged obliquely upwards in sequence.

7. A screw-locking mechanism according to any one of claims 1-5, characterized in that, A mounting chuck (136) for mounting a bit (106) is fixedly mounted on the working shaft of the first servo motor (104).

8. An adsorption-type fully automatic screw fastening machine, characterized in that, The device includes a base (137), on which a transverse support (138) is provided, on which a transverse guide rail (139) is provided, on which a transverse movable seat (140) is provided, and on which a screw-locking mechanism according to any one of claims 1-6 is provided, wherein the vertical guide rail (101) is provided on the transverse movable seat (140).

9. The adsorption-type fully automatic screw fastening machine according to claim 8, characterized in that, A longitudinal guide rail (141) is provided on the base (137), and a longitudinal movable seat (142) is provided on the longitudinal guide rail (141). The product to be processed is fixed on the longitudinal movable seat (142).

10. The adsorption-type fully automatic screw fastening machine according to claim 9, characterized in that, A screw feeding mechanism (143) is provided on the base (137). The screw feeding mechanism (143) includes a feeding machine box (144) fixed on the base (137). The feeding machine box (144) is provided with a screw feeding assembly (145) and a screw positioning groove (146). A positioning turntable (147) is installed in the screw positioning groove (146). A plurality of screw receiving grooves (148) are evenly provided around the periphery of the positioning turntable (147). A feeding opening (149) that aligns with the screw receiving groove (148) is opened on the side wall of the screw positioning groove (146). The screw feeding assembly (145) includes a feeding track (150). The feeding opening (149) aligns with the feeding track (150).

Images