Compatible locking mechanism

Abstract

The utility model discloses a compatible locking mechanism which comprises a Z shaft walking on a base, a base plate is arranged on the outer wall of the Z shaft, an end plate is arranged at the top of the base plate, two limiting seats which are symmetrically distributed are arranged at the end, away from the end plate, of the end face of the base plate, a pressing plate is arranged below the two limiting seats, and sliding rods are arranged at the two ends of the top of the pressing plate; the ends, away from the pressing plate, of the two sliding rods penetrate through the two limiting seats correspondingly and extend to the positions above the limiting seats. According to the compatible locking mechanism, the position of the screw chuck can be automatically changed according to the length of a screw, and the position of a screwdriver bit is not affected by the Z axis and walking of the base plate; the situation that screws with different lengths can be locked only by repeatedly adjusting the position of the screwdriver bit due to the fact that the screwdriver bit moves along with the Z shaft and the base plate is avoided, the trouble that the walking stroke of the Z shaft needs to be adjusted is also avoided, time and labor are saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw locking equipment, in particular to a compatible locking mechanism. Background Art

[0002] The screw locking mechanism is an important device in mechanical engineering used to lock screws to a predetermined position. Its working principle is based on the friction of the thread and the principle of mechanical transmission. When the screw is fed into the locking mechanism, the mechanism will position it to the predetermined position of the workpiece. Then, by rotating the screw head (usually driven by a motor or cylinder), the screw gradually enters the screw hole of the workpiece under the action of the thread until the predetermined locking torque is reached. During this process, the locking mechanism will monitor the torque value in real time to ensure the locking quality of the screw. It is widely used in various industrial fields, such as automobile manufacturing, electronic equipment, and home appliance production, to improve production efficiency and product quality.

[0003] However, since screws come in different lengths, existing screw locking mechanisms require repeated adjustment of the Z-axis travel and the position of the screwdriver bit to ensure the tightening quality of screws of different lengths. This is time-consuming and labor-intensive, affecting work efficiency. Therefore, those skilled in the art have provided a compatible locking mechanism to address the problems raised in the above-mentioned background art. Utility Model Content

[0004] The purpose of the present invention is to provide a compatible locking mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The cam is secured to the upper and lower ends of the base plate so that the cam can slide freely in the lower portion of the base plate, thereby ensuring that the cam is securely attached to the base plate and that the cam is securely attached to the base plate. The cam is secured to the outside of the L-shaped deck and has a latching mechanism that engages the latching mechanism and is secured to the outside of the L-shaped deck when the cam is engaged.

[0007] Preferably, the end surface of the substrate is provided with a slide rail, and the backs of the L-shaped upper slide and the L-shaped lower slide are respectively provided with a first slider and a second slider. The L-shaped upper slide and the L-shaped lower slide are slidably installed on the end surface of the substrate through the cooperation of the first slider, the second slider and the slide rail.

[0008] Preferably, the side wall of the support plate is provided with a sensing sheet, and a U-shaped switch for sensing is provided at a position of the side wall of the base plate corresponding to the sensing sheet.

[0009] Preferably, a sliding hole is provided at a position of the limiting seat corresponding to the sliding rod, and the sliding rod is slidably installed inside the sliding rod through the sliding hole.

[0010] Preferably, a limiting plate is provided at one end of the slide rod located above the limiting seat, and the end surface area of ​​the limiting plate is larger than the opening area of ​​the slide hole.

[0011] Preferably, the inner cavity of the sleeve is provided with a partition, and the inner cavity of the sleeve is provided with a storage cavity on both sides of the partition, and the two extension rods are respectively slidably installed inside the storage cavity.

[0012] Preferably, an annular lug is provided at one end of the extension rod located inside the receiving cavity for defining its position, and the diameter of the annular lug is larger than the inner diameter of the opening of the receiving cavity.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] The L-shaped upper slide and the L-shaped lower slide are driven by the base to move downward, and the L-shaped upper slide and the L-shaped lower slide are driven by the base to move downward, so that the screw on the screw chuck moves into the through groove on the pressing plate and contacts the product. At the same time, the base continues to move downward following the movement of the Z-axis, and drives the L-shaped upper slide and the L-shaped lower slide mounted on the base to move downward, so that the L-shaped upper slide and the L-shaped lower slide, which have been pressed onto the product by the locking sleeve, the screwdriver head and the screw chuck, slide upward on the end surface of the base under their reaction force, press the extension rod into the sleeve and compress the second spring, so that the second spring is deformed, and then the L-shaped upper slide and the L-shaped lower slide are driven by the base to move downward. The slide presses the screw against the installation port of the product under the elastic force of the second spring, and finally drives the servo motor to rotate the locking sleeve installed thereon, and drives the screwdriver head connected to the locking sleeve to rotate, and installs the screw installed on the screw chuck into the installation port of the product, thereby completing the locking of the screw. The position of the screw chuck can be automatically changed according to the length of the screw, so that the screw chuck always presses the screw against the product under the elastic force of the second spring and moves downward with the tightening process of the screw, and the position of the screwdriver head is not affected by the movement of the Z-axis and the substrate. This not only avoids the situation where the position of the screwdriver head needs to be repeatedly adjusted to lock screws of different lengths due to the displacement of the screwdriver head following the movement of the Z-axis and the substrate, but also avoids the trouble of needing to adjust the travel stroke of the Z-axis, saving time and effort and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional schematic diagram of a compatible locking mechanism according to an embodiment of the present invention;

[0016] Figure 2 is a side view of a compatible locking mechanism according to an embodiment of the present invention;

[0017] Figure 3 is a three-dimensional schematic diagram of a substrate according to an embodiment of the present invention;

[0018] Figure 4 1 is a perspective schematic diagram of an L-shaped upper slide according to an embodiment of the present invention;

[0019] Figure 51 is a perspective schematic diagram of an L-shaped lower slide plate according to an embodiment of the present invention;

[0020] Figure 6 Schematic diagram of the connection between the sleeve and the extension rod according to one embodiment of the present invention.

[0021] In the figure: 1. Z-axis; 2. Base plate; 21. End plate; 22. Limit seat; 221. Slide hole; 23. Pressure plate; 231. Through slot; 24. Slide rod; 241. Limit plate; 25. First spring; 26. Slide rail; 27. U-shaped switch; 3. L-shaped upper slide; 31. Support plate; 32. Sleeve; 321. Storage cavity; 33. Partition; 34. Extension rod; 341. Annular ear; 35. Second spring; 36. First slide; 37. Sensor plate; 4. L-shaped lower slide; 41. Limit ear; 42. Second slide; 5. Servo motor; 51. Locking sleeve; 6. Screw chuck; 61. Screwdriver head. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variations thereof are intended to cover non-exclusive inclusions.

[0023] Combine Figures 1-6As shown, a compatible locking mechanism comprises: a Z axis 1 running on a base, a base plate 2 is provided on the outer wall of the Z axis 1, and an end plate 21 is provided on the top of the base plate 2, and two symmetrically distributed limit seats 22 are provided at one end of the end surface of the base plate 2 away from the end plate 21, a pressure plate 23 is provided below the two limit seats 22, and sliding rods 24 are provided at both ends of the top of the pressure plate 23, and the ends of the two sliding rods 24 away from the pressure plate 23 respectively penetrate the two limit seats 22 and extend above them, and the pressure plate 23 is provided at the bottom of the two limit seats 22. A first spring 25 is provided between the upper end surface of the plate 23 and the lower end surface of the limit seat 22 and around the outside of the slide rod 24. In addition, the end surface of the base plate 2 is located between the end plate 21 and the limit seat 22 and is slidably installed with an L-shaped upper slide plate 3 and an L-shaped lower slide plate 4 distributed up and down. Among them, a support plate 31 is provided on the top of the L-shaped upper slide plate 3, and sleeves 32 are provided at both ends of the support plate 31. Two extension rods 34 are slidably installed inside the sleeve 32. The two extension rods 34 pass through the sleeve 32 and extend respectively. The second spring 35 is provided on the outside of the extension rod 34 and extends to the upper and lower ends thereof, and the end surface of the sleeve 32 surrounds the extension rod 34. The upper extension rod 34 and the second spring 35 are installed on the lower end surface of the end plate 21 at one end away from the sleeve 32. The lower extension rod 34 and the second spring 35 are installed on the upper end surface of the limit ears 41 on both sides of the L-shaped lower slide 4 at one end away from the sleeve 32. In addition, the end of the L-shaped lower slide 4 away from the L-shaped upper slide 3 is inserted between the two limit seats 22 and extends to the lower end thereof. On the other hand, a screw chuck 6 is provided at one end of the extension rod 34 below the limit seat 22, and a screwdriver head 61 is provided on the top of the screw chuck 6. A servo motor 5 is provided at a position corresponding to the end surface of the L-shaped upper slide 3 and the screwdriver head 61. A locking sleeve 51 is provided at the output end of the servo motor 5, and the other end of the locking sleeve 51 is installed on the top of the screwdriver head 61. A through groove 231 is opened at a position corresponding to the end surface of the pressure plate 23 and the screw chuck 6, and the screw chuck 6 is inserted into the inside of the through groove 231.

[0024] In one embodiment, when the pressure plate 23 is used to press the product, the Z-axis 1 is driven to move downward on the base, driving the substrate 2 installed thereon to move downward, and driving the pressure plate 23 installed under the substrate 2 to contact the product, so that the through groove 231 on the pressure plate 23 surrounds the outside of the product installation port. At the same time, the substrate 2 continues to move downward following the movement of the Z-axis 1, and then the limit seat 22 is allowed to slide on the outer wall of the slide rod 24 through the sliding hole 221 and press the first spring 25 to deform, so that the pressure plate 23 presses the product under the action of the elastic force of the first spring 25, completing the limitation of the product. The first spring 25 can buffer the force of the pressure plate 23 pressing the product, avoiding the damage to the product surface due to the large pressing force of the pressure plate 23, thereby achieving protection of the product.

[0025] In one embodiment, since the end face area of ​​the limiting plate 241 is larger than the opening area of ​​the sliding hole 221, when the pressure plate 23 is not in use, the limiting plate 241 can limit the sliding rod 24 to prevent the sliding rod 24 from detaching from the limiting seat 22, thereby avoiding the situation where the pressure plate 23 cannot be used due to the sliding rod 24 detaching from the limiting seat 22, thereby ensuring the use of the pressure plate 23.

[0026] In one embodiment, when the screw is pressed onto the product, the Z-axis 1 can be driven to move downward on the base, driving the substrate 2 mounted thereon to move downward, and driving the L-shaped upper slide 3 and the L-shaped lower slide 4 mounted on the substrate 2 to move downward, and then the L-shaped upper slide 3 and the L-shaped lower slide 4 in the downward displacement respectively drive the servo motor 5 and the screw chuck 6 mounted thereon to move downward, so that the screw mounted on the screw chuck 6 moves to the through slot 231 on the pressing plate 23 and contacts the product. At the same time, the substrate 2 continues to move downward following the movement of the Z-axis 1, and drives the L-shaped upper slide 3 and the L-shaped lower slide 4 mounted on the substrate 2 to move downward continuously, so that the L-shaped upper slide 3 and the L-shaped lower slide 4 that press the screw on the product through the locking sleeve 51, the screwdriver head 61 and the screw chuck 6 slide upward on the end surface of the substrate 2 under their reaction force, pressing the extension rod 34 into The sleeve 32 presses the second spring 35 to deform, so that the L-shaped upper slide plate 3 and the L-shaped lower slide plate 4 drive the locking sleeve 51, the screwdriver head 61 and the screw chuck 6 to press the screw to the installation port of the product under the elastic force of the second spring 35, thereby completing the installation of the screw, and can automatically change the position of the screw chuck 6 according to the length of the screw, so that the screw chuck 6 always presses the screw on the product under the elastic force of the second spring 35 and moves downward to tighten the screw as the screw is tightened, and the position of the screwdriver head 61 is not affected by the movement of the Z-axis 1 and the base plate 2. This not only avoids the situation where the position of the screwdriver head 61 needs to be repeatedly adjusted to lock screws of different lengths due to the displacement of the screwdriver head 61 following the movement of the Z-axis 1 and the base plate 2, but also avoids the trouble of needing to adjust the travel stroke of the Z-axis 1, saving time and effort and improving work efficiency.

[0027] In one embodiment, when the screw is locked on the product, the servo motor 5 can be driven to drive the locking sleeve 51 installed thereon to rotate, and drive the screwdriver head 61 connected to the locking sleeve 51 to rotate, so that the screw installed on the screw chuck 6 is installed into the installation opening of the product. At the same time, as the screw enters the product, the L-shaped upper slide 3 and the L-shaped lower slide 4 drive the locking sleeve 51, the screwdriver head 61 and the screw chuck 6 to move downward under the action of the elastic force of the second spring 35, so that the locking sleeve 51, the screwdriver head 61 and the screw chuck 6 always press the screw on the product until the screw is locked, thereby completing the locking work of the screw, and allowing the screw chuck 6 to move downward along with the tightening process of the screw and always press the screw, preventing the screw chuck 6 from disengaging from the screw, ensuring the progress of the screw locking work, and improving the locking quality of the screw.

[0028] In one embodiment, when the L-shaped upper slide 3 and the L-shaped lower slide 4 are restored to their original positions, the L-shaped upper slide 3 and the L-shaped lower slide 4 can be allowed to slide and restore to their original positions on the end surface of the base plate 2 through the cooperation of the first slider 36, the second slider 42 and the slide rail 26 under the elastic force of the second spring 35, and drive the extension rod 34 to slide to the outside of the sleeve 32. The position of the extension rod 34 is limited by the annular support ear 341 to prevent the extension rod 34 from escaping from the storage cavity 321 on both sides of the partition 33 inside the sleeve 32, thereby avoiding the situation where the L-shaped upper slide 3 is separated from the L-shaped lower slide 4 due to the extension rod 34 being separated from the sleeve 32, and ensuring the use of the servo motor 5, locking sleeve 51, screw chuck 6, and screwdriver head 61 installed on the L-shaped upper slide 3 and the L-shaped lower slide 4.

[0029] The working principle of the present invention is as follows: when locking the screw, the screw can be conveyed to the screw chuck 6 through the screw feeder, and the screw is limited by the screw chuck 6, and then the Z axis 1 is driven to move downward on the base to drive the substrate 2 installed thereon to move downward, and drive the pressure plate 23 installed under the substrate 2 to contact the product, so that the through groove 231 on the pressure plate 23 surrounds the outside of the product installation port, and at the same time, the substrate 2 continues to move downward following the movement of the Z axis 1, and then the limiting seat 22 is allowed to slide on the outer wall of the slide rod 24 through the sliding hole 221 and press the first spring 25 to deform, so that the pressure plate 23 presses the product under the action of the elastic force of the first spring 25, completing the limitation of the product, and at the same time, the L-shaped upper The slide plate 3 and the L-shaped lower slide plate 4 move downward, so that the downwardly displacing L-shaped upper slide plate 3 and L-shaped lower slide plate 4 respectively drive the servo motor 5 and the screw chuck 6 installed thereon to move downward, so that the screws installed on the screw chuck 6 move to the through slot 231 on the pressing plate 23 and contact the product, and then the base plate 2 continues to move downward following the movement of the Z-axis 1, and drives the L-shaped upper slide plate 3 and L-shaped lower slide plate 4 installed on the base plate 2 to continue to move downward, so that the L-shaped upper slide plate 3 and L-shaped lower slide plate 4 that press the screws on the product through the locking sleeve 51, the screwdriver head 61 and the screw chuck 6 slide upward on the end surface of the base plate 2 under their reaction force, and the induction piece 37 installed on the outer wall of the L-shaped upper slide plate 3 disengages from the U-shaped switch 27, so that the U-shaped switch 27 When the screw is in the non-sensing state, the extension rod 34 is pressed into the sleeve 32 and the second spring 35 is pressed to deform, so that the L-shaped upper slide 3 and the L-shaped lower slide 4 drive the locking sleeve 51, the screwdriver head 61 and the screw chuck 6 to press the screw to the installation port of the product under the elastic force of the second spring 35, and the screw is tightened. Finally, the servo motor 5 is driven to work and drive the locking sleeve 51 installed thereon to rotate, and drive the screwdriver head 61 connected to the locking sleeve 51 to rotate, and install the screw installed on the screw chuck 6 into the installation port of the product, and let the L-shaped upper slide 3 and the L-shaped lower slide 4 follow the progress of the screw under the elastic force of the second spring 35 to drive the locking sleeve 51, the screwdriver head 61 and the screw chuck 6 to move downward, so that the screw is tightened. The locking sleeve 51, the screwdriver head 61 and the screw chuck 6 always press the screw against the product until the screw is locked, thereby completing the screw locking work. The position of the screw chuck 6 can be automatically changed according to the length of the screw, so that the screw chuck 6 always presses the screw against the product under the elastic force of the second spring 35 and moves downward to tighten the screw as the screw is tightened, and the position of the screwdriver head 61 is not affected by the movement of the Z-axis 1 and the substrate 2. This not only avoids the situation where the position of the screwdriver head 61 needs to be repeatedly adjusted to lock screws of different lengths due to the displacement of the screwdriver head 61 following the movement of the Z-axis 1 and the substrate 2, but also avoids the trouble of needing to adjust the travel stroke of the Z-axis 1, saving time and effort and improving work efficiency.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A compatible locking mechanism, comprising: A Z axis (1) running on a base, characterized in that a base plate (2) is provided on the outer wall of the Z axis (1), and an end plate (21) is provided on the top of the base plate (2), and two symmetrically distributed limit seats (22) are provided at one end of the end face of the base plate (2) away from the end plate (21), a pressure plate (23) is provided below the two limit seats (22), and sliding rods (24) are provided at both ends of the top of the pressure plate (23), and the ends of the two sliding rods (24) away from the pressure plate (23) respectively pass through the two limit seats (22) and extend above them, and the upper end face of the pressure plate (23) is symmetrical with the end face of the base plate (2). A first spring (25) is provided between the lower end surfaces of the limiting seat (22) and around the outside of the sliding rod (24), and an L-shaped upper slide plate (3) and an L-shaped lower slide plate (4) are slidably installed between the end surface of the base plate (21) and the limiting seat (22), wherein a support plate (31) is provided on the top of the L-shaped upper slide plate (3), and sleeves (32) are provided at both ends of the support plate (31), and two extension rods (34) are slidably installed inside the sleeve (32), and the two extension rods (34) pass through the sleeve (32) and extend to the upper and lower ends thereof respectively, and The end surface of the sleeve (32) is surrounded by a second spring (35) on the outside of the extension rod (34), and the end of the extension rod (34) and the second spring (35) located above and away from the sleeve (32) is installed on the lower end surface of the end plate (21), and the end of the extension rod (34) and the second spring (35) located below and away from the sleeve (32) is installed on the upper end surface of the limiting ears (41) on both sides of the L-shaped lower slide (4), and the end of the L-shaped lower slide (4) away from the L-shaped upper slide (3) is inserted between the two limiting seats (22) and extends to the bottom thereof, and the extension rod ( 34) A screw chuck (6) is provided at one end below the limit seat (22), a screwdriver head (61) is provided on the top of the screw chuck (6), a servo motor (5) is provided at a position corresponding to the end surface of the L-shaped upper slide plate (3) and the screwdriver head (61), a locking sleeve (51) is provided at the output end of the servo motor (5), the other end of the locking sleeve (51) is installed on the top of the screwdriver head (61), and a through groove (231) is provided at a position corresponding to the end surface of the pressure plate (23) and the screw chuck (6), and the screw chuck (6) is inserted into the inside of the through groove (231).

2. A compatible locking mechanism according to claim 1, characterized in that: The end surface of the base plate (2) is provided with a slide rail (26), and the backs of the L-shaped upper slide plate (3) and the L-shaped lower slide plate (4) are respectively provided with a first slider (36) and a second slider (42), and the L-shaped upper slide plate (3) and the L-shaped lower slide plate (4) are slidably mounted on the end surface of the base plate (2) through the cooperation of the first slider (36), the second slider (42) and the slide rail (26).

3. A compatible locking mechanism according to claim 1, characterized in that: The side wall of the support plate (31) is provided with an induction sheet (37), and a U-shaped switch (27) for its induction is provided at a position on the side wall of the base plate (2) corresponding to the induction sheet (37).

4. A compatible locking mechanism according to claim 1, characterized in that: A sliding hole (221) is provided at a position corresponding to the position of the limiting seat (22) and the sliding rod (24), and the sliding rod (24) is slidably installed inside the sliding rod (24) through the sliding hole (221).

5. A compatible locking mechanism according to claim 4, characterized in that: A limiting plate (241) is provided at one end of the slide rod (24) located above the limiting seat (22), and the end surface area of ​​the limiting plate (241) is larger than the opening area of ​​the slide hole (221).

6. The compatible locking mechanism according to claim 1, characterized in that: The inner cavity of the sleeve (32) is provided with a partition (33), and the inner cavity of the sleeve (32) is provided with a receiving cavity (321) on both sides of the partition (33), and the two extension rods (34) are respectively slidably installed inside the receiving cavity (321).

7. A compatible locking mechanism according to claim 6, characterized in that: An annular support ear (341) for limiting its position is provided at one end of the extension rod (34) located inside the receiving cavity (321); the diameter of the annular support ear (341) is larger than the inner diameter of the opening of the receiving cavity (321).

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