Efficient screw machine

Abstract

The invention relates to the field of mechanical equipment, and particularly discloses an efficient screw machine which comprises a screw machine body and a clamp mechanism, the clamp mechanism is composed of a rotating disc and a plurality of clamp units, and each clamp unit comprises a supporting table, a static V-shaped plate, a movable V-shaped plate and a plurality of vacuum suction cups. Through the optimally-designed clamp unit, particularly the movable V-shaped plate and the vacuum suction cup are used in cooperation, stable fixing and rapid positioning of different types of workpieces are achieved, and the working efficiency and precision of the screw machine are remarkably improved.

Description

Technical Field

[0001] The present application relates to the field of mechanical equipment, and in particular to a high-efficiency screw machine. Background Art

[0002] At present, screw fastening equipment is widely used in industrial production, especially in the fields of automobile manufacturing, electronic assembly, etc. The traditional manual tightening method is not only inefficient, but also prone to errors, resulting in unstable product quality. With the continuous development of automation technology, various automated screw machines have gradually become popular, significantly improving production efficiency and product consistency. These automated devices not only greatly reduce the need for manual operation, but also ensure higher assembly quality through precision control. However, existing automatic screw machines still have certain limitations when processing complex workpieces, especially in multi-station operations. How to quickly and accurately position and fix the parts to be processed has become a problem that needs to be solved urgently.

[0003] In the related art, in order to improve the working efficiency and precision of the screw machine, the prior art adopts a variety of methods to achieve the clamping and positioning of the workpiece. A common method is to customize a suitable fixture according to the shape of the workpiece, which is specifically used for clamping the workpiece.

[0004] The above-mentioned related technologies have the following defects: the above-mentioned clamps can only clamp workpieces of corresponding shapes. When different types of workpieces need to be clamped, the corresponding clamps need to be replaced, which greatly reduces the working efficiency of the screw machine. Summary of the invention

[0005] In order to improve the working efficiency of a screw machine, the present application provides a high-efficiency screw machine.

[0006] The present application provides a high-efficiency screw machine adopts the following technical solution: An efficient screw machine comprises a screw machine body and a clamp mechanism, wherein the clamp mechanism is mounted on a base of the screw machine body and is arranged opposite to a screwdriver on the screw machine body; The clamp mechanism comprises a turntable and a plurality of clamp units, the turntable is rotatably connected to the base, and the plurality of clamp units are distributed along the circumference of the turntable; The fixture unit comprises a support platform, a stationary V-shaped plate, a movable V-shaped plate and a plurality of vacuum suction cups, wherein the support platform is mounted on a side of the turntable facing the screwdriver; The stationary V-shaped plate and the movable V-shaped plate are respectively arranged on both sides of the rotating disk; The axis of the stationary V-shaped plate is parallel to the axis of the rotating disk, and one end of the stationary V-shaped plate is connected to the rotating disk; One end of the movable V-shaped plate is movably mounted on the rotating disk, and the other end is inclined toward the stationary V-shaped plate; In the axial direction of the turntable, a plurality of vacuum suction cups are telescopically mounted on a side of the turntable facing the screwdriver.

[0007] By adopting the above technical solution, when the clamp unit fixes the workpiece, after one side of the workpiece is against the stationary V-shaped plate, multiple vacuum suction cups are adaptively extended and retracted according to the shape of the bottom of the workpiece, and then multiple vacuum suction cups suck the workpiece against the bottom to fix the bottom of the workpiece. Then the movable V-shaped plate cooperates with the stationary V-shaped plate to clamp the workpiece, fix the circumference of the workpiece, and thus the workpiece as a whole can be stably limited. After the workpiece is limited by the clamp unit, the turntable rotates to move the workpiece to the processing position of the screwdriver, and then the screw machine body drives the screwdriver to tighten the screws on the workpiece. In summary, the present application can adaptively clamp different types of workpieces through the coordinated cooperation of the movable V-shaped plate, the stationary V-shaped plate and multiple vacuum suction cups. When processing different types of workpieces, there is no need to replace the clamp, which saves the time for replacing the clamp and improves the working efficiency of the screw machine.

[0008] Preferably, the fixture unit further comprises a first driving assembly, the first driving assembly comprises a ventilation box and an air pump, the ventilation box is mounted on the turntable, and the ventilation box is connected to the ventilation box; The vacuum suction cup is telescopically mounted on the ventilation box.

[0009] By adopting the above technical solution, the coordinated use of the ventilation box and the air pump can quickly change the working state of multiple vacuum suction cups, thereby improving work efficiency.

[0010] Preferably, a plurality of ventilation holes corresponding to the vacuum suction cups one by one and coaxially are provided on the wall of the ventilation box; The rotating disk is provided with a plurality of intermediate through holes which are coaxially corresponding to the plurality of ventilation holes one by one; The support platform is provided with a plurality of guide through holes which are coaxially corresponding to the plurality of ventilation holes one by one; A coaxial rigid tube is installed at the air outlet end of the vacuum suction cup. The rigid tube is located in the corresponding air exchange hole, the corresponding middle through hole and the corresponding guide through hole, and is dynamically sealed with the air exchange box.

[0011] By adopting the above technical solution, the rigid tube can be lifted and lowered inside the rigid tube while supporting the vacuum suction cup, realizing accurate gas exchange between the vacuum suction cup and the ventilation box, ensuring that the vacuum suction cup can operate effectively. The middle through hole and the middle through hole further limit the rigid tube to ensure that the rigid tube moves stably along the length direction of the ventilation hole.

[0012] Preferably, the side wall of the rigid tube is mounted with a side bracket located in the ventilation box; A telescopic piece arranged along the length direction of the rigid tube is connected between the side bracket and the inner wall of the ventilation box.

[0013] By adopting the above technical solution, the rigid tube is driven to move by the telescopic member to realize the telescopic movement of the vacuum suction cup.

[0014] Preferably, a pressure sensor is connected between the side bracket and the telescopic member.

[0015] By adopting the above technical solution, a pressure sensor is connected between the side bracket and the telescopic member, which can monitor the force of the rigid tube in real time during the movement. This helps to adjust the working parameters of the drive component in time, ensure that the vacuum suction cup can stably absorb the workpiece, and improve work efficiency and processing accuracy.

[0016] Preferably, a non-slip rubber pad is provided on a side of the movable V-shaped plate facing the stationary V-shaped plate.

[0017] By adopting the above technical solution, the provision of the anti-skid rubber pad can effectively increase the friction between the movable V-shaped plate and the workpiece, prevent the workpiece from sliding during the clamping process, and improve the clamping stability and processing accuracy. At the same time, the anti-skid rubber pad also has a certain buffering effect, which can reduce the damage to the workpiece surface caused by the clamping force and protect the surface quality of the workpiece.

[0018] Preferably, the plurality of vacuum suction cups are evenly spaced and distributed on the support platform.

[0019] By adopting the above technical solution, multiple vacuum suction cups are evenly spaced on the support table, which can ensure that the workpiece is evenly stressed when fixed, improve the clamping stability, and avoid deformation or damage of the workpiece due to excessive local pressure. At the same time, the evenly distributed vacuum suction cups can adapt to workpieces of different sizes and shapes, enhancing the scope of application and flexibility of the equipment.

[0020] Preferably, the fixture unit further comprises a second driving assembly, the second driving assembly comprising a slide rail and a slider slidably connected to the slide rail, the slide rail being mounted on the turntable along the radial direction of the support platform; The sliding block is connected to the movable V-shaped plate.

[0021] By adopting the above technical solution, the movable V-shaped plate can be accurately adjusted in position, ensuring that the workpiece is more stable and reliable during the clamping process. The design of the slide rail and the slider allows the movable V-shaped plate to move smoothly along the radius of the support, thereby adapting to workpieces of different sizes and shapes, and improving the scope of application and flexibility of the clamp. At the same time, this design also reduces the operator's manual adjustment time and improves work efficiency.

[0022] Preferably, a spring rod parallel to the slide rail is connected between one end of the movable V-shaped plate away from the stationary V-shaped plate and the turntable.

[0023] By adopting the above technical solution, the spring rod between the movable V-shaped plate and the turntable can provide a stable restoring force, ensuring that the movable V-shaped plate has good positioning accuracy and stability when clamping the workpiece. At the same time, the design of the spring rod parallel to the slide rail makes the movable V-shaped plate move more smoothly along the slide rail, reducing the friction resistance during the movement and improving the work efficiency and reliability.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. In the present application, the movable V-shaped plate, the stationary V-shaped plate and a plurality of vacuum suction cups cooperate with each other to adaptively clamp different types of workpieces. When processing different types of workpieces, there is no need to replace the fixture, which saves the time for replacing the fixture and improves the working efficiency of the screw machine.

[0025] 2. In this application, the telescopic member drives the rigid tube to move to achieve the telescopic movement of the vacuum suction cup. A pressure sensor is connected between the side bracket and the telescopic member to monitor the force of the rigid tube in real time during the movement. This helps to adjust the working parameters of the drive component in time, ensure that the vacuum suction cup can stably adsorb the workpiece, and improve work efficiency and processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is along Figure 1 Schematic diagram of the cross-sectional structure along the AA line; Figure 3 yes Figure 2 A magnified schematic diagram of part B; Figure 4 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Reference numerals: 1. Screw machine body; 10. Base; 11. Screwdriver; 2. Clamp mechanism; 21. Turntable; 2101. Middle through hole; 22. Clamp unit; 221. Support platform; 22101. Guide through hole; 222. Vacuum suction cup; 223. Stationary V-shaped plate; 224. Movable V-shaped plate; 225. Anti-skid rubber pad; 23. First drive assembly; 231. Ventilation box; 23101. Ventilation hole; 232. Rigid tube; 233. Side bracket; 234. Pressure sensor; 235. Telescopic member; 236. Air pump; 24. Second drive assembly; 241. Slide rail; 242. Sliding block; 243. Spring rod. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-4 This application is described in further detail.

[0030] The embodiment of the present application discloses a high-efficiency screw machine.

[0031] Reference Figure 1 and Figure 2 A high-efficiency screw machine includes a screw machine body 1 and a clamp mechanism 2, wherein the clamp mechanism 2 is mounted on a base 10 of the screw machine body 1 and is arranged opposite to a screwdriver 11 on the screw machine body 1. The screw machine body 1 is a prior art.

[0032] Reference Figure 2 , Figure 3 and Figure 4 The fixture mechanism 2 includes a turntable 21 and a plurality of fixture units 22. The turntable 21 is rotatably connected to the base 10, and the plurality of fixture units 22 are distributed along the circumference of the turntable 21. The fixture unit 22 includes a support 221, a stationary V-shaped plate 223, a movable V-shaped plate 224, and a plurality of vacuum suction cups 222. The support 221 is installed on the side of the turntable 21 facing the screwdriver 11. The stationary V-shaped plate 223 and the movable V-shaped plate 224 are respectively arranged on both sides of the turntable 21. The axis of the stationary V-shaped plate 223 is parallel to the axis of the turntable 21, and one end is connected to the turntable 21. One end of the movable V-shaped plate 224 is movably installed on the turntable 21, and the other end is inclined toward the stationary V-shaped plate 223. In the axial direction of the turntable 21, the plurality of vacuum suction cups 222 are telescopically installed on the side of the turntable 21 facing the screwdriver 11.

[0033] Reference Figure 2 , Figure 3 and Figure 4In the embodiment of the present application, when the fixture unit 22 fixes the workpiece, after one side of the workpiece is against the stationary V-shaped plate 223, the multiple vacuum suction cups 222 are adaptively extended and retracted according to the shape of the bottom of the workpiece, and then the multiple vacuum suction cups 222 suck the workpiece against the bottom to fix the bottom of the workpiece. Then the movable V-shaped plate 224 cooperates with the stationary V-shaped plate 223 to clamp the workpiece and fix the circumference of the workpiece, so that the workpiece as a whole can be stably limited. After the workpiece is limited by the fixture unit 22, the turntable 21 rotates to move the workpiece to the processing position of the screwdriver 11, and then the screw machine body 1 drives the screwdriver 11 to tighten the screws on the workpiece. In summary, the present application can adaptively clamp different types of workpieces through the coordinated cooperation of the movable V-shaped plate 224, the stationary V-shaped plate 223 and the multiple vacuum suction cups 222. When processing different types of workpieces, there is no need to replace the fixture, which saves the time of replacing the fixture and improves the working efficiency of the screw machine.

[0034] Reference Figure 2 , Figure 3 and Figure 4 The clamp unit 22 further includes a first drive assembly 23, the first drive assembly 23 includes a ventilation box 231 and an air pump 236, the ventilation box 231 is mounted on the turntable 21, and the ventilation box 231 is connected to the ventilation box 231. The vacuum suction cup 222 is retractably mounted on the ventilation box 231. In the embodiment of the present application, the coordinated use of the ventilation box 231 and the air pump 236 can quickly change the working state of multiple vacuum suction cups 222, thereby improving work efficiency.

[0035] Reference Figure 2 , Figure 3 and Figure 4 , a plurality of ventilation holes 23101 corresponding to the vacuum suction cup 222 are provided on the box wall of the ventilation box 231. A plurality of intermediate through holes 2101 corresponding to the plurality of ventilation holes 23101 are provided on the turntable 21. A plurality of guide through holes 22101 corresponding to the plurality of ventilation holes 23101 are provided on the support platform 221. A coaxial rigid tube 232 is installed at the air outlet end of the vacuum suction cup 222. The rigid tube 232 is located in the corresponding ventilation hole 23101, the corresponding intermediate through hole 2101 and the corresponding guide through hole 22101, and is dynamically sealed and connected to the ventilation box 231. In the embodiment of the present application, the rigid tube 232 can be lifted and lowered in the rigid tube 232 while supporting the vacuum suction cup 222, thereby realizing precise gas exchange between the vacuum suction cup 222 and the ventilation box 231, and ensuring that the vacuum suction cup 222 can operate effectively. The middle through hole 2101 and the middle through hole 2101 further limit the rigid tube 232 to ensure that the rigid tube 232 moves stably along the length direction of the ventilation hole 23101.

[0036] Reference Figure 2 , Figure 3and Figure 4 The side wall of the rigid tube 232 is installed with a side bracket 233 located in the ventilation box 231. A telescopic member 235 arranged along the length direction of the rigid tube 232 is connected between the side bracket 233 and the inner wall of the ventilation box 231. In the embodiment of the present application, the rigid tube 232 is driven to move by the telescopic member 235 to realize the telescopic movement of the vacuum suction cup 222.

[0037] Reference Figure 2 , Figure 3 and Figure 4 , a pressure sensor 234 is connected between the side bracket 233 and the telescopic member 235. In the embodiment of the present application, a pressure sensor 234 is connected between the side bracket 233 and the telescopic member 235, which can monitor the force of the rigid tube 232 in real time during the movement. This helps to adjust the working parameters of the drive assembly in time, ensure that the vacuum suction cup 222 stably absorbs the workpiece, and improve work efficiency and processing accuracy.

[0038] Reference Figure 2 , Figure 3 and Figure 4 , a non-slip rubber pad 225 is provided on one side of the movable V-shaped plate 224 facing the stationary V-shaped plate 223. In the embodiment of the present application, the provision of the non-slip rubber pad 225 can effectively increase the friction between the movable V-shaped plate 224 and the workpiece, prevent the workpiece from sliding during the clamping process, and improve the clamping stability and processing accuracy. At the same time, the non-slip rubber pad 225 also has a certain buffering effect, which can reduce the damage to the workpiece surface caused by the clamping force and protect the surface quality of the workpiece.

[0039] Reference Figure 2 , Figure 3 and Figure 4 , multiple vacuum suction cups 222 are evenly spaced and distributed on the support platform 221. In the embodiment of the present application, multiple vacuum suction cups 222 are evenly spaced and distributed on the support platform 221, which can ensure that the workpiece is evenly stressed when fixed, improve the clamping stability, and avoid deformation or damage of the workpiece due to excessive local pressure. At the same time, the evenly distributed vacuum suction cups 222 can adapt to workpieces of different sizes and shapes, enhancing the scope of application and flexibility of the equipment.

[0040] Reference Figure 2 , Figure 3 and Figure 4The clamp unit 22 also includes a second drive assembly 24, which includes a slide rail 241 and a slider 242 slidably connected to the slide rail 241, and the slide rail 241 is installed on the turntable 21 along the radial direction of the support platform 221. The slider 242 is connected to the movable V-shaped plate 224. In the embodiment of the present application, the precise position adjustment of the movable V-shaped plate 224 can be achieved to ensure that the workpiece is more stable and reliable during the clamping process. The design of the slide rail 241 and the slider 242 allows the movable V-shaped plate 224 to move smoothly along the radial direction of the support platform 221, thereby adapting to workpieces of different sizes and shapes, thereby improving the scope of application and flexibility of the clamp. At the same time, this design also reduces the operator's manual adjustment time and improves work efficiency.

[0041] Reference Figure 2 , Figure 3 and Figure 4 A spring rod 243 parallel to the slide rail 241 is connected between the end of the movable V-shaped plate 224 away from the stationary V-shaped plate 223 and the turntable 21. In the embodiment of the present application, the spring rod 243 between the movable V-shaped plate 224 and the turntable 21 can provide a stable restoring force, ensuring that the movable V-shaped plate 224 has good positioning accuracy and stability when clamping the workpiece. At the same time, the design of the spring rod 243 being parallel to the slide rail 241 makes the movable V-shaped plate 224 move more smoothly along the slide rail 241, reduces the friction resistance during the movement, and improves the work efficiency and reliability.

[0042] The implementation principle of an efficient screw machine in the embodiment of the present application is: When the clamp unit 22 fixes the workpiece, after one side of the workpiece is pressed against the stationary V-shaped plate 223, the multiple vacuum suction cups 222 are adaptively extended and retracted according to the shape of the bottom of the workpiece, and then the multiple vacuum suction cups 222 suck the workpiece against the bottom to fix the bottom of the workpiece. Then the movable V-shaped plate 224 cooperates with the stationary V-shaped plate 223 to clamp the workpiece and fix the circumference of the workpiece, so that the workpiece as a whole can be stably limited. After the workpiece is limited by the clamp unit 22, the turntable 21 rotates to move the workpiece to the processing position of the screwdriver 11, and then the screw machine body 1 drives the screwdriver 11 to tighten the screws on the workpiece.

[0043] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-efficiency screw machine, characterized by: It comprises a screw machine body (1) and a clamp mechanism (2), wherein the clamp mechanism (2) is mounted on a base (10) of the screw machine body (1) and is arranged opposite to a screwdriver (11) on the screw machine body (1); The clamp mechanism (2) comprises a rotating disk (21) and a plurality of clamp units (22), the rotating disk (21) being rotatably connected to the base (10), and the plurality of clamp units (22) being distributed along the circumference of the rotating disk (21); The clamp unit (22) comprises a support platform (221), a stationary V-shaped plate (223), a movable V-shaped plate (224), and a plurality of vacuum suction cups (222); the support platform (221) is mounted on a side of the turntable (21) facing the screwdriver (11); The stationary V-shaped plate (223) and the movable V-shaped plate (224) are respectively arranged on two sides of the rotating disk (21); The axis of the stationary V-shaped plate (223) is parallel to the axis of the rotating disk (21), and one end of the stationary V-shaped plate (223) is connected to the rotating disk (21); One end of the movable V-shaped plate (224) is movably mounted on the rotating disk (21), and the other end is inclined toward the stationary V-shaped plate (223); In the axial direction of the rotating disk (21), a plurality of vacuum suction cups (222) are telescopically mounted on a side of the rotating disk (21) facing the screwdriver (11).

2. A high-efficiency screw machine according to claim 1, characterized in that: The clamp unit (22) further comprises a first driving assembly (23), the first driving assembly (23) comprising a ventilation box (231) and an air pump (236), the ventilation box (231) being mounted on the turntable (21), the ventilation box (231) being connected to the ventilation box (231); The vacuum suction cup (222) is telescopically mounted on the ventilation box (231).

3. A high-efficiency screw machine according to claim 2, characterized in that: A plurality of ventilation holes (23101) are provided on the wall of the ventilation box (231) and are coaxially corresponding to the vacuum suction cups (222); The rotating disk (21) is provided with a plurality of middle through holes (2101) which are coaxially corresponding to the plurality of ventilation holes (23101); The support platform (221) is provided with a plurality of guide through holes (22101) which are coaxially corresponding to the plurality of ventilation holes (23101); A coaxial rigid tube (232) is installed at the air outlet end of the vacuum suction cup (222); the rigid tube (232) is located in the corresponding ventilation hole (23101), the corresponding intermediate through hole (2101), and the corresponding guide through hole (22101), and is dynamically sealed to the ventilation box (231).

4. A high-efficiency screw machine according to claim 3, characterized in that: A side bracket (233) located inside the ventilation box (231) is installed on the side wall of the rigid tube (232); A telescopic member (235) arranged along the length direction of the rigid tube (232) is connected between the side bracket (233) and the inner wall of the ventilation box (231).

5. A high-efficiency screw machine according to claim 4, characterized in that: A pressure sensor (234) is connected between the side bracket (233) and the telescopic member (235).

6. The high-efficiency screw machine according to claim 1, characterized in that: A non-slip rubber pad (225) is provided on one side of the movable V-shaped plate (224) facing the stationary V-shaped plate (223).

7. The high-efficiency screw machine according to claim 1, characterized in that: The plurality of vacuum suction cups (222) are evenly spaced and distributed on the support platform (221).

8. The high-efficiency screw machine according to claim 1, characterized in that: The clamp unit (22) further comprises a second driving assembly (24), the second driving assembly (24) comprising a slide rail (241) and a slider (242) slidably connected to the slide rail (241), the slide rail (241) being mounted on the turntable (21) along a radial direction of the support platform (221); The sliding block (242) is connected to the movable V-shaped plate (224).

9. The high-efficiency screw machine according to claim 8, characterized in that: A spring rod (243) parallel to the slide rail (241) is connected between one end of the movable V-shaped plate (224) away from the stationary V-shaped plate (223) and the rotating disk (21).

Images