Single-shaft material sucking and screw locking machine

Abstract

The utility model discloses a single-shaft material sucking and screw locking machine which comprises a base, a vertical box body is fixedly arranged on the base, a transverse sliding rail piece is arranged on the vertical box body, a transverse sliding block piece is arranged on the transverse sliding rail piece in a sliding mode, a vertical sliding rail piece is fixedly arranged on the transverse sliding block piece, and a vertical sliding block piece is arranged on the vertical sliding rail piece in a sliding mode. A mounting plate is fixedly arranged on the vertical sliding block part, a screw locking assembly is arranged on the mounting plate, the transverse sliding rail part and the vertical sliding rail part are combined, and the screwdriver bit part driven by a servo motor is combined, so that the multi-dimensional space positioning capacity is achieved, the screw locking requirements of different heights and positions can be met, and the applicability is improved; the screwdriver head part is allowed to be flexibly and finely adjusted in angle, the screwdriver head part is accurately matched with a complex workpiece or a screw hole position of a special-shaped structure, through full-process automation, manual intervention is reduced, the labor intensity and the risk of misoperation are reduced, the screwdriver head part is suitable for large-batch and repeated operation scenes, and the equipment maintenance and use cost is comprehensively reduced in combination with standardized spare parts.

Description

Technical Field

[0001] This utility model relates to the field of screw fastening machine technology, specifically a single-axis suction screw fastening machine. Background Technology

[0002] As described in the published patent CN209491503U, automatic screw fastening machines utilize various electric and pneumatic components to automatically feed, tighten, and inspect screws. This simplifies the screw fastening process, reducing manual labor and minimizing human error. It is a typical non-standard automated device. Automatic screw fastening machines are mainly categorized as handheld, multi-axis, and coordinate-type. They are primarily used for fastening M1-M8 screws. Due to their non-standard and customizable nature, they offer solutions for various screw-fastening products, making them widely applicable.

[0003] However, existing automatic screw fastening machines cannot tighten screws into screw holes with special angles.

[0004] In summary, existing automatic screw fastening machines suffer from inconvenient angle adjustment. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a single-axis suction screw fastening machine that can solve the above problems.

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

[0007] A single-axis suction screw fastening machine includes a base, a vertical box fixed on the base, a horizontal slide rail component on the vertical box, a horizontal slider component slidably mounted on the horizontal slide rail component, a vertical slide rail component fixed on the horizontal slider component, a vertical slider component slidably mounted on the vertical slide rail component, and a mounting plate fixed on the vertical slider component.

[0008] The mounting plate is provided with a screw fastening assembly, which includes a guide mounting plate fixed to the mounting plate, an abutment block and a guide slide rail fixed on the guide mounting plate, a first guide slider slidably mounted on the guide slide rail, a first connecting plate fixed on the first guide slider, a guide sliding hole opened on the first connecting plate, a guide post slidably mounted in the guide sliding hole, and the upper end of the guide post fixed on the abutment block.

[0009] A first spring is fitted on the guide post. The upper end of the first spring abuts against the abutting block, and the lower end of the first spring abuts against the first connecting plate.

[0010] A vertical second connecting plate is rotatably connected to the first connecting plate. A horizontal first bearing plate is fixed on the second connecting plate. A servo motor component is fixed on the first bearing plate. The working shaft of the servo motor component passes downward through the first bearing plate. A bit component is fixed on the working shaft of the servo motor component.

[0011] The lower end of the guide mounting plate is equipped with a steering adjustment assembly that fits into the bit fitting.

[0012] As a further embodiment of this utility model: the steering adjustment assembly includes a first steering plate fixed to the lower end of the guide mounting plate, a second steering plate for lateral adjustment slidably disposed on the first steering plate, a third steering plate for lateral arrangement rotatably connected to the lower end of the second steering plate, a screw positioning tube fixedly disposed on the third steering plate, a negative pressure air hole opened on the side wall of the screw positioning tube, and a screwdriver bit slidingly engaged in the screw positioning tube.

[0013] As a further embodiment of this utility model: a vertical steering adjustment groove is provided on the first steering plate, and through sliding adjustment grooves are provided on the left and right side walls of the steering adjustment groove respectively; a steering adjustment rod that slides in the sliding adjustment groove is fixed on the second steering plate.

[0014] The sliding adjustment groove is equipped with a second spring and a third spring. One end of the second spring is fixedly connected to the rear inner wall of the sliding adjustment groove, and the other end of the second spring is fixedly connected to the rear side of the steering adjustment rod. One end of the third spring is fixedly connected to the front inner wall of the sliding adjustment groove, and the other end of the third spring is fixedly connected to the front side of the steering adjustment rod.

[0015] As a further embodiment of this utility model: the end of the steering adjustment rod extends out of the sliding adjustment groove, the end of the steering adjustment rod is screwed with a first locking nut, and the other end of the steering adjustment rod is screwed with a second locking nut.

[0016] As a further embodiment of this utility model: a buffer mounting component is fixedly provided on the guide rail, and a fourth spring component is provided on the upper rear side of the second steering plate. One end of the fourth spring component is fixedly connected to the rear side of the second steering plate, and the other end of the fourth spring component is fixedly connected to the buffer mounting component.

[0017] As a further embodiment of this utility model: the front end face of the buffer mounting member is provided with an elastic element mounting hole, the fourth spring member is installed in the elastic element mounting hole, one end of the fourth spring member is fixedly connected to the inner bottom surface of the elastic element mounting hole, and the front end face of the second steering plate is provided with a second elastic element mounting hole that communicates with the elastic element mounting hole.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The combination of horizontal and vertical slide rail components (XZ axis movement), combined with the servo motor-driven bit component, forms a multi-dimensional spatial positioning capability, which can cover screw fastening needs at different heights and positions, thus improving applicability.

[0020] The linked design of the bit and the steering adjustment component allows for flexible and fine-tuning of the bit's angle, precisely adapting to the screw hole positions of complex workpieces or irregular structures. Through full-process automation, manual intervention is reduced, labor intensity and the risk of operational errors are lowered, making it particularly suitable for high-volume, repetitive operation scenarios. Combined with standardized spare parts, it comprehensively reduces equipment maintenance and usage costs. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural view of the present invention;

[0022] Figure 2 This is the left view of this utility model;

[0023] Figure 3 This is a front view of the present invention;

[0024] Figure 4 yes Figure 3 A cross-sectional view along the AA direction;

[0025] Figure 5 yes Figure 4 A partial view at point B in the middle;

[0026] Figure 6 yes Figure 4 A partial view at point C;

[0027] Figure 7 This is a three-dimensional view of the structure of the first steering plate 121 and the steering adjustment rod 128 in this utility model;

[0028] Figure 8 This is another three-dimensional view of the first steering plate 121 and the steering adjustment rod 128 in this utility model;

[0029] Figure 9 This is a schematic diagram of the operation of locking screws with a screwdriver bit in this utility model;

[0030] The reference numerals and names in the figure are as follows:

[0031] Base-100, Vertical housing-101, Horizontal slide rail-102, Horizontal slider-103, Vertical slide rail-104, Vertical slider-105, Mounting plate-106, Screw assembly-107, Guide mounting plate-108, Abutment block-109, Guide slide rail-110, First guide slider-111, First connecting plate-112, Guide slide hole-113, Guide post-114, First spring-115, Second connecting plate-116, First bearing plate-117, Servo motor-118, Screwdriver bit-118 -119, Steering adjustment assembly -120, First steering plate -121, Second steering plate -122, Third steering plate -123, Screw positioning tube -124, Negative pressure air hole -125, Steering adjustment groove -126, Sliding adjustment groove -127, Steering adjustment rod -128, Second spring component -129, Third spring component -130, First locking nut component -131, Second locking nut component -132, Buffer mounting component -133, Fourth spring component -134, Elastic component mounting hole -135, Second elastic component mounting hole -136. Detailed Implementation

[0032] 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.

[0033] Please see Figure 1-9 A single-axis suction screw fastening machine includes a base 100, a vertical box 101 fixed on the base 100, a horizontal slide rail 102 on the vertical box 101, a horizontal slider 103 slidably mounted on the horizontal slide rail 102, a vertical slide rail 104 fixed on the horizontal slider 103, a vertical slider 105 slidably mounted on the vertical slide rail 104, and a mounting plate 106 fixed on the vertical slider 105.

[0034] The mounting plate 106 is provided with a screw fastening assembly 107, which includes a guide mounting plate 108 fixed on the mounting plate 106. The guide mounting plate 108 is fixed with an abutment block 109 and a guide slide rail 110. A first guide slider 111 is slidably mounted on the guide slide rail 110. A first connecting plate 112 is fixed on the first guide slider 111. A guide sliding hole 113 is opened on the first connecting plate 112. A guide post 114 is slidably mounted in the guide sliding hole 113. The upper end of the guide post 114 is fixed on the abutment block 109.

[0035] A first spring 115 is fitted on the guide post 114. The upper end of the first spring 115 abuts against the abutting block 109, and the lower end of the first spring 115 abuts against the first connecting plate 112.

[0036] A vertical second connecting plate 116 is rotatably connected to the first connecting plate 112. A horizontal first bearing plate 117 is fixed on the second connecting plate 116. A servo motor component 118 is fixed on the first bearing plate 117. The working axis of the servo motor component 118 passes downward through the first bearing plate 117. A bit component 119 is fixed on the working axis of the servo motor component 118.

[0037] The lower end of the guide mounting plate 108 is provided with a steering adjustment assembly 120 that engages with the bit piece 119;

[0038] The combination of the horizontal slide rail 102 and the vertical slide rail 104 (XZ axis movement), combined with the servo motor driven bit 119, forms a multi-dimensional spatial positioning capability, which can cover screw fastening needs at different heights and positions, and improve applicability.

[0039] The linkage design between the bit part 119 and the steering adjustment assembly 120 allows the bit part 119 to be flexibly and finely adjusted in angle, precisely adapting to the screw hole positions of complex workpieces or irregular structures.

[0040] like Figure 9 As shown, for the inclined screw hole on the workpiece to be screwed, during the descent of the vertical slide rail 104, the bit 119 and the screw first partially enter the screw hole. As the vertical slide rail 104 continues to descend, the second connecting plate 116 can automatically adapt to the angle of the screw hole and tilt to align the bit with the axis of the screw hole, avoiding locking misalignment. In one embodiment, in order to adapt to the change of lateral distance during the rotation of the bit 119, the axis of the bit 119 and the screw is aligned with the right side of the screw hole.

[0041] The guide post 114 and the first spring 115 cooperate to form an elastic pressing system, which automatically compensates for height error during the locking process, applies pressure evenly, and prevents the screw from stripping, the workpiece surface from being marked, or the bit from being worn due to excessive pressure. The lower end of the guide post 114 is fixed with a limiting bolt that is sleeved in the guide sliding hole 113 to prevent the guide post 114 from disengaging from the guide sliding hole 113.

[0042] The servo motor directly drives the screwdriver bit 119, and the torque and speed can be adjusted programmably to ensure that the tightening depth and tightness of each screw are consistent, avoid human operation errors, and improve product yield.

[0043] The screw fastening assembly 107 adopts modular assembly, which facilitates quick change of bits or adjustment of parameters to adapt to the processing needs of screws of different specifications, reduce equipment changeover time, and improve production line flexibility.

[0044] The vertical housing 101 is integrated with the slide rail system, which reduces the equipment's footprint, while the compact movement path of the multi-directional slider is suitable for space-constrained production environments.

[0045] By automating the entire process, manual intervention is reduced, labor intensity and the risk of operational errors are lowered, making it especially suitable for large-volume, repetitive operation scenarios. Combined with standardized spare parts, it comprehensively reduces equipment maintenance and usage costs.

[0046] During use, the screw-locking assembly 107 can be adjusted horizontally by sliding the horizontal slider 103 on the horizontal slide rail 102, and the screw-locking assembly 107 can be adjusted vertically by sliding the vertical slider 105 on the vertical slide rail 104.

[0047] By rotating the second connecting plate 116, the angle of the first bearing plate 117 can be adjusted, and the angles of the servo motor component 118 and the bit component 119 can be adjusted, thereby facilitating the fastening of screws at different angles.

[0048] In this embodiment of the utility model, the steering adjustment assembly 120 includes a first steering plate 121 fixed to the lower end of the guide mounting plate 108, a second steering plate 122 slidably disposed on the first steering plate 121 for lateral adjustment, a third steering plate 123 rotatably connected to the lower end of the second steering plate 122, a screw positioning tube 124 fixedly disposed on the third steering plate 123, a negative pressure air hole 125 opened on the side wall of the screw positioning tube 124, and a screwdriver bit 119 slidingly engaged in the screw positioning tube 124.

[0049] The second steering plate 122 is rotated and slid on the first steering plate 121 for adjustment, and the third steering plate 123 is rotated and adjusted on the second steering plate 122 for adjustment. This adapts to inclined screw holes or curved workpieces, ensuring that the bit is aligned with the axis of the screw hole and avoiding misalignment during locking.

[0050] By linking the second steering plate 122 with the lateral translation and rotation on the first steering plate 121, screw holes at different angles can be precisely matched, reducing manual calibration time and improving screw tightening efficiency.

[0051] The negative pressure air hole 125 on the side wall of the screw positioning tube 124 uses airflow to attract the screw, preventing the screw from shifting or falling off during the fastening process. It is especially suitable for the stable gripping of small or irregularly shaped screws. The negative pressure adsorption force can be adjusted according to the weight of the screw and the working conditions.

[0052] The screwdriver bit 119 slides within the screw positioning tube 124, eliminating the risk of misalignment and improving locking accuracy. The combined structure of the first, second and third steering plates 123 can cover multi-angle adjustment requirements and is suitable for locking scenarios of non-flat workpieces such as uneven surfaces and inclined assembly surfaces.

[0053] The mechanical damping design of the sliding and rotating structure can buffer the effects of external vibrations or slight workpiece displacement, ensuring the stability of continuous operation;

[0054] The sliding surfaces and rotating bearings of the first, second, and third steering plates 123 are made of wear-resistant materials (such as chrome-plated steel or self-lubricating bushings) to reduce mechanical wear during long-term use. Each steering plate is connected by bolts, which supports quick disassembly and replacement, reducing downtime maintenance costs.

[0055] In this embodiment of the utility model, a vertical steering adjustment groove 126 is provided on the first steering plate 121, and through sliding adjustment grooves 127 are provided on the left and right side walls of the steering adjustment groove 126 respectively. A steering adjustment rod 128 that slides in the sliding adjustment groove 127 is fixed on the second steering plate 122.

[0056] The sliding adjustment groove 127 is equipped with a second spring 129 and a third spring 130. One end of the second spring 129 is fixedly connected to the rear inner wall of the sliding adjustment groove 127, and the other end of the second spring 129 is fixedly connected to the rear side of the steering adjustment rod 128. One end of the third spring 130 is fixedly connected to the front inner wall of the sliding adjustment groove 127, and the other end of the third spring 130 is fixedly connected to the front side of the steering adjustment rod 128.

[0057] The second spring 129 (rear side) and the third spring 130 (front side) act on both ends of the steering adjustment rod 128 respectively, forming a symmetrical elastic support. When the second steering plate 122 slides laterally under the action of external force, the springs on both sides provide a counterforce through compression or tension to achieve dynamic balance, avoid the adjustment rod from shifting due to inertia or vibration, and ensure the precise alignment of the bit 119 with the screw hole during the locking process.

[0058] After the external force is removed, the elastic potential energy of the double springs drives the steering adjustment rod 128 to quickly return to its initial position (centering state), reducing manual reset intervention and improving continuous operation efficiency. The damping characteristics of the springs can absorb the vibration energy transmitted from the equipment operation or external sources, preventing the screwdriver bit from shifting due to slight vibration. The steering adjustment groove 126 and the sliding adjustment groove 127 are integrated into one design, replacing the traditional pneumatic or electric adjustment mechanism with physical limit (groove wall) and elastic reset (spring), simplifying the structure and reducing the failure rate.

[0059] By adjusting the length of the sliding adjustment groove 127 or the spring stiffness, it can be adapted to different locking scenarios (such as heavy screw locking which requires increased spring preload). Operators can quickly calibrate the angle by manually pushing the third steering plate 123 without relying on a complex electronic control system, thus reducing the debugging threshold.

[0060] In this embodiment of the present invention, the end of the steering adjustment rod 128 extends out of the sliding adjustment groove 127, the end of the steering adjustment rod 128 is screwed with a first locking nut 131, and the other end of the steering adjustment rod 128 is screwed with a second locking nut 132.

[0061] After the screw positioning tube 124 and the bit part 119 are adjusted to the predetermined angle by rotating the third steering plate 123, the steering adjustment rod 128 is fixedly locked onto the first steering plate 121 by tightening the first locking nut part 131 and the second locking nut part 132, thereby maintaining the adjusted angle of the screw positioning tube 124 and the bit part 119, which is convenient for subsequent repeated operations.

[0062] In this embodiment of the utility model, a buffer mounting member 133 is fixedly provided on the guide slide rail 110, and a fourth spring member 134 is provided on the rear side of the upper end of the second steering plate 122. One end of the fourth spring member 134 is fixedly connected to the rear side of the second steering plate 122, and the other end of the fourth spring member 134 is fixedly connected to the buffer mounting member 133.

[0063] By setting the fourth spring 134, the steering adjustment process of the second steering plate 122 is made smoother;

[0064] When the second steering plate 122 slides laterally in the sliding adjustment groove 127, the fourth spring provides longitudinal auxiliary force by stretching or compressing to suppress the swaying caused by inertia or sudden load changes and ensure the linearity of the movement trajectory of the second steering plate 122.

[0065] The preload of the fourth spring 134 can limit the lateral sliding limit position of the second steering plate 122, preventing damage to the components caused by mechanical hard collisions.

[0066] In this embodiment of the utility model, the front end face of the buffer mounting member 133 is provided with an elastic element mounting hole 135, the fourth spring member 134 is installed in the elastic element mounting hole 135, one end of the fourth spring member 134 is fixedly connected to the inner bottom surface of the elastic element mounting hole 135, and the front end face of the second steering plate 122 is provided with a second elastic element mounting hole 136 that communicates with the elastic element mounting hole 135.

[0067] The fourth spring 134 is hidden inside the elastic element mounting hole 135 and the second elastic element mounting hole 136, avoiding external space occupation and reducing the risk of interference with surrounding moving parts, which is especially suitable for compact equipment layouts.

[0068] During disassembly, simply loosen the fixing bolt of the second elastic element mounting hole 136 at the front end of the second steering plate 122 to pull out the spring along with the buffer mounting piece 133 as a whole. The connecting structure of the elastic element mounting hole 135 and the second elastic element mounting hole 136 provides a visual operation window, which is convenient for checking the spring status or injecting lubricant.

[0069] The mounting hole 135 of the elastic element forms a semi-closed cavity, which can be equipped with a dustproof rubber ring or covered with a flexible protective sleeve to prevent dust and oil from entering the inside of the spring and avoid elastic failure caused by foreign objects getting stuck.

[0070] 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 single-axis pick-and-place screw locking machine, characterized in that, Includes a base (100), a vertical box (101) fixed on the base (100), a horizontal slide rail (102) on the vertical box (101), a horizontal slider (103) slidably mounted on the horizontal slide rail (102), a vertical slide rail (104) fixed on the horizontal slider (103), a vertical slider (105) slidably mounted on the vertical slide rail (104), and a mounting plate (106) fixed on the vertical slider (105). The mounting plate (106) is provided with a screw fastening assembly (107). The screw fastening assembly (107) includes a guide mounting plate (108) fixed on the mounting plate (106). The guide mounting plate (108) is fixed with an abutment block (109) and a guide slide rail (110). The guide slide rail (110) is slidably provided with a first guide slider (111). The first guide slider (111) is fixed with a first connecting plate (112). The first connecting plate (112) is provided with a guide sliding hole (113). The guide sliding hole (113) is slidably provided with a guide post (114). The upper end of the guide post (114) is fixed on the abutment block (109). A first spring member (115) is sleeved on the guide post (114). The upper end of the first spring member (115) abuts against the abutting block (109), and the lower end of the first spring member (115) abuts against the first connecting plate (112). A vertical second connecting plate (116) is rotatably connected to the first connecting plate (112). A horizontal first bearing plate (117) is fixed on the second connecting plate (116). A servo motor component (118) is fixed on the first bearing plate (117). The working shaft of the servo motor component (118) passes downward through the first bearing plate (117). A bit component (119) is fixed on the working shaft of the servo motor component (118). The lower end of the guide mounting plate (108) is provided with a steering adjustment assembly (120) that engages with the bit (119).

2. A single spindle pick and place screw locking machine according to claim 1 wherein, The steering adjustment assembly (120) includes a first steering plate (121) fixed to the lower end of the guide mounting plate (108), a second steering plate (122) for lateral adjustment slidably mounted on the first steering plate (121), a third steering plate (123) for lateral arrangement rotatably connected to the lower end of the second steering plate (122), a screw positioning tube (124) fixedly mounted on the third steering plate (123), a negative pressure air hole (125) opened on the side wall of the screw positioning tube (124), and a screwdriver bit (119) slidingly engaged in the screw positioning tube (124).

3. A single spindle pick and place screw locking machine according to claim 2 wherein, The first steering plate (121) has a vertical steering adjustment groove (126), and the left and right side walls of the steering adjustment groove (126) have through sliding adjustment grooves (127). The second steering plate (122) has a steering adjustment rod (128) that slides in the sliding adjustment groove (127). The sliding adjusting groove (127) is internally provided with a second spring member (129) and a third spring member (130). One end of the second spring member (129) is fixedly connected with the rear inner wall of the sliding adjusting groove (127), and the other end of the second spring member (129) is fixedly connected with the rear side of the steering adjusting rod (128). One end of the third spring member (130) is fixedly connected with the front inner wall of the sliding adjusting groove (127), and the other end of the third spring member (130) is fixedly connected with the front side of the steering adjusting rod (128).

4. A single spindle pick and place screw locking machine according to claim 3 wherein, The end of the steering adjusting rod (128) extends out of the sliding adjusting groove (127), and the end of the steering adjusting rod (128) is screwed with a first locking nut member (131). The other end of the steering adjusting rod (128) is screwed with a second locking nut member (132).

5. A single spindle pick and place screw locking machine according to claim 4 wherein, The guiding slide rail (110) is fixedly provided with a buffer mounting member (133). The upper end of the second steering plate (122) is provided with a fourth spring member (134). One end of the fourth spring member (134) is fixedly connected with the rear side of the second steering plate (122), and the other end of the fourth spring member (134) is fixedly connected with the buffer mounting member (133).

6. A single spindle pick and place screw locking machine according to claim 5 wherein, The front end face of the buffer mounting member (133) is provided with an elastic member mounting hole (135). The fourth spring member (134) is mounted in the elastic member mounting hole (135). One end of the fourth spring member (134) is fixedly connected with the inner bottom face of the elastic member mounting hole (135). The front end face of the second steering plate (122) is provided with a second elastic member mounting hole (136) which is in communication with the elastic member mounting hole (135).

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