A robot gripping mechanism for Bluetooth PCBA board testing
By rotating the threaded assembly on the side wall of the mounting shell of the robot and using the constraint assembly to fix it limit, the problem of loose threaded assembly during the long swing of the robot is solved, and the reliability of Bluetooth PCBA board testing is improved.
Patent Information
- Application Number
- CN202420923142.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the long swing of existing robots, the bolts used to fix the electric jaws are easily loosened, affecting the test work of the Bluetooth PCBA board.
A robotic gripping mechanism is designed, including a robotic hand and an electric clamping jaw. By rotating the threaded assembly on the side wall of the mounting shell, and limiting the threaded assembly is used to ensure that the threaded assembly is not easy to loosen during the long swing of the robotic hand.
It effectively avoids the problem of threaded components loose during long swing of the robot hand, ensures the stable fixation of the electric jaws, and improves the reliability of Bluetooth PCBA board testing.
Smart Images
Figure CN222741462U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of Bluetooth PCBA board testing, in particular to a robot arm grasping mechanism for Bluetooth PCBA board testing. Background Art
[0002] PCB board, also known as printed circuit board, is an important electronic component and the support of electronic components. Robot arm is an automatic operating device that can imitate certain movements and functions of human hands and arms, and is used to grab, move objects or operate tools according to fixed procedures. It is characterized by being able to complete various expected operations through programming, and has the advantages of both human and robot in terms of structure and performance. Therefore, when testing PCB boards, it is usually necessary to cooperate with robot arms and electric grippers to grab the Bluetooth PCBA boards that need to be tested. Existing electric grippers are usually fixed to the end of the robot arm with bolts, but during the long-term swinging of the robot arm, the bolts used to fix the electric grippers may become loose, which has an adverse effect on the testing of Bluetooth PCBA boards. Utility Model Content
[0003] The purpose of the utility model is to provide a robot gripping mechanism for Bluetooth PCBA board testing to solve the problems raised in the above background technology.
[0004] The technical solution of the utility model is: a robot gripping mechanism for Bluetooth PCBA board testing, comprising a robot and an electric clamp, the end of the robot is fixedly connected to a mounting shell, a threaded component is rotatably connected to the side wall of the mounting shell, a vertical plate is symmetrically threadedly connected to the threaded component, a fixing rod is symmetrically fixedly connected to one side of two groups of vertical plates close to each other, a limiting rod is symmetrically fixedly connected between the side walls at both ends of the inner cavity of the mounting shell, a limiting block is symmetrically fixedly connected at both ends of the vertical plate, and the limiting block is slidably arranged on the limiting rod, a mounting plate is fixedly connected to the side wall of the mounting shell, a constraint component that is mutually clamped with the threaded component is slidably arranged on the mounting plate, four groups of positioning frames are fixedly connected in an array on one side of the mounting shell away from the end of the robot, a mounting block is fixedly connected to the top of the electric clamp, and fixing grooves are symmetrically provided on the side walls at both ends of the mounting block.
[0005] Based on the above technical features: when in use, the mounting block on the top of the electric clamp is placed between the four groups of positioning frames, at this time, the fixing groove on the side wall of the mounting block is aligned with the fixing rod; the staff pulls the constraint assembly to slide, so that the constraint end of the constraint assembly is separated from the threaded assembly, so as to release the limiting fixation of the threaded assembly by the constraint assembly; the staff twists the threaded assembly to rotate, and the two symmetrically arranged vertical plates move towards each other along the thread direction of the threaded assembly. During this process, the set limit block slides on the limit rod, and the set limit rod limits the vertical plate during movement; the set vertical plate drives the fixing rod to be inserted into the fixing groove, and when the fixing rod is completely inserted into the fixing groove, the staff stops twisting the threaded assembly, and then the staff loosens the constraint assembly, and the constraint end of the set constraint assembly is re-engaged with the threaded assembly under the action of its own elastic force, so as to restore the limiting fixation of the threaded assembly by the constraint assembly; this device uses the constraint assembly to limit and fix the threaded assembly, so that after the robot arm swings for a long time, the set threaded assembly is not easy to loosen.
[0006] Preferably, the threaded assembly includes a bidirectional screw rod rotatably connected to the side wall of the mounting shell, and the vertical plate is threadedly connected to the bidirectional screw rod, and a toothed plate is fixedly connected to the rod body of the bidirectional screw rod.
[0007] Based on the above technical features: the staff turns the bidirectional screw to rotate it, and the two symmetrically arranged groups of vertical plates move towards each other along the thread direction of the bidirectional screw. During this process, the set limit blocks slide on the limit rods, and the set limit rods limit the vertical plates during the movement.
[0008] Preferably, a screw head is fixedly connected to one side of the bidirectional screw rod located outside the mounting shell.
[0009] Based on the above technical features: the provided screw head facilitates the staff to turn the bidirectional screw rod for rotation.
[0010] Preferably, a plurality of groups of grooves are provided at equal angles on the outer ring surface of the screw head.
[0011] Based on the above technical features: the provided groove increases the friction between the palm of the staff and the screw head.
[0012] Preferably, the constraint assembly includes a constraint rod slidably arranged on the mounting plate, a circular plate is fixedly connected to the constraint rod body, a spring is wound around the constraint rod body, and the spring is connected between the circular plate and the bottom of the mounting plate, and a tooth block is fixedly connected to the bottom of the constraint rod and is engaged with the tooth plate.
[0013] Based on the above technical features: when in use, the mounting block on the top of the electric clamp is placed between the four groups of positioning frames, at this time, the fixing groove on the side wall of the mounting block is aligned with the fixing rod; the staff pulls the constraint rod to slide, and the set constraint rod drives the tooth block to separate from the tooth plate, so as to release the limit fixation of the two-way screw rod by the tooth block; the set vertical plate drives the fixing rod to be inserted into the fixing groove, and when the fixing rod is completely inserted into the fixing groove, the staff stops twisting the two-way screw rod, and then the staff loosens the constraint rod, and the set constraint rod drives the tooth block to re-engage with the tooth plate under the action of the spring force, so as to restore the limit fixation of the two-way screw rod by the tooth block; this device uses the constraint assembly to limit and fix the threaded assembly, so that after the robot arm swings for a long time, the set threaded assembly is not easy to loosen.
[0014] Preferably, a clamping plate is rotatably connected to the top of the restraining rod, a clamping block is fixedly connected to one side of the bottom of the clamping plate, a transverse plate is fixedly connected to the side wall of the mounting shell, and a clamping groove is provided on one side of the top of the transverse plate.
[0015] Based on the above technical features: after the tooth block is separated from the tooth plate, the staff will connect the card block to the card slot and use the cross plate to limit and fix the card plate, constraint rod and tooth block.
[0016] The utility model provides a robot gripping mechanism for Bluetooth PCBA board testing through improvement. Compared with the prior art, the utility model has the beneficial effect that when the utility model is used, the mounting block on the top of the electric clamp is placed between the four groups of positioning frames, the staff pulls the constraint component to slide, so that the constraint end of the constraint component is separated from the threaded component, the staff twists the threaded component to rotate, and the two symmetrically arranged groups of vertical plates move toward each other along the thread direction of the threaded component. The arranged vertical plates drive the fixing rod to be inserted into the fixing groove. When the fixing rod is completely inserted into the fixing groove, the staff stops twisting the threaded component, and then the staff loosens the constraint component, and the constraint end of the set constraint component is re-engaged with the threaded component under the action of its own elastic force, so as to restore the limiting fixation of the threaded component by the constraint component; this device uses the constraint component to limit and fix the threaded component, so that after the robot arm swings for a long time, the set threaded component is not easy to loosen. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:
[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0019] Figure 2 It is a schematic diagram of the installation shell structure of the utility model;
[0020] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure of part A;
[0021] Figure 4 It is a schematic diagram of the structure of the electric clamp of the utility model.
[0022] Description of reference numerals:
[0023] 1. Robot arm; 2. Electric gripper; 3. Mounting shell; 4. Threaded assembly; 41. Bidirectional screw rod; 42. Tooth plate; 5. Vertical plate; 6. Fixed rod; 7. Limit rod; 8. Limit block; 9. Mounting plate; 10. Constraint assembly; 101. Constraint rod; 102. Round plate; 103. Spring; 104. Tooth block; 11. Positioning frame; 12. Mounting block; 13. Fixed slot; 14. Card plate; 15. Card block; 16. Horizontal plate; 17. Card slot. DETAILED DESCRIPTION
[0024] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figures 1 to 4 As shown, the utility model provides a robot gripping mechanism for Bluetooth PCBA board testing, including a robot 1 and an electric gripper 2, an installation shell 3 is fixedly connected to the end of the robot 1, a threaded component 4 is rotatably connected to the side wall of the installation shell 3, a vertical plate 5 is symmetrically threadedly connected to the threaded component 4, a fixing rod 6 is symmetrically fixedly connected to the side where two groups of vertical plates 5 are close to each other, a limiting rod 7 is symmetrically fixedly connected between the side walls at both ends of the inner cavity of the installation shell 3, a limiting block 8 is symmetrically fixedly connected at both ends of the vertical plate 5, and the limiting block 8 is slidably arranged on the limiting rod 7, a mounting plate 9 is fixedly connected to the side wall of the installation shell 3, a constraint component 10 that is mutually clamped with the threaded component 4 is slidably arranged on the mounting plate 9, four groups of positioning frames 11 are fixedly connected in an array on one side of the installation shell 3 away from the end of the robot 1, a mounting block 12 is fixedly connected to the top of the electric gripper 2, and fixing grooves 13 are symmetrically opened on the side walls at both ends of the mounting block 12.
[0026] Furthermore, the threaded assembly 4 includes a bidirectional screw rod 41 rotatably connected to the side wall of the mounting shell 3, and the vertical plate 5 is threadedly connected to the bidirectional screw rod 41, and a toothed plate 42 is fixedly connected to the rod body of the bidirectional screw rod 41. When a staff member turns the bidirectional screw rod 41 to rotate it, the two symmetrically arranged groups of vertical plates 5 move toward each other along the thread direction of the bidirectional screw rod 41. During this process, the set limit block 8 slides on the limit rod 7, and the set limit rod 7 limits the vertical plate 5 during the movement.
[0027] Among them, the bidirectional screw rod 41 is fixedly connected to a screw head on one side outside the mounting shell 3, and the screw head is provided to facilitate the staff to turn the bidirectional screw rod 41 for rotation; a plurality of groups of grooves are provided at equal angles on the outer ring surface of the screw head, and the grooves increase the friction between the staff's palm and the screw head.
[0028] Furthermore, the restraint assembly 10 includes a restraint rod 101 slidably arranged on the mounting plate 9, a circular plate 102 is fixedly connected to the rod body of the restraint rod 101, a spring 103 is wound around the rod body of the restraint rod 101, and the spring 103 is connected between the circular plate 102 and the bottom of the mounting plate 9, and a tooth block 104 that is mutually engaged with the tooth plate 42 is fixedly connected to the bottom of the restraint rod 101. When in use, the mounting block 12 at the top of the electric clamp 2 is placed between the four groups of positioning frames 11, at this time, the fixing groove 13 on the side wall of the mounting block 12 is aligned with the fixing rod 6; the staff pulls the restraint rod 101 to slide, and the set restraint rod 101 drives the tooth block 104 and the tooth plate 42 is separated, thereby releasing the limit fixation of the tooth block 104 on the bidirectional screw rod 41; the set vertical plate 5 drives the fixing rod 6 to be inserted into the fixing groove 13. When the fixing rod 6 is completely inserted into the fixing groove 13, the staff stops twisting the bidirectional screw rod 41, and then the staff loosens the constraint rod 101. The set constraint rod 101 drives the tooth block 104 to re-engage with the tooth plate 42 under the action of the elastic force of the spring 103, thereby restoring the limit fixation of the tooth block 104 on the bidirectional screw rod 41; this device uses the constraint component 10 to limit and fix the threaded component 4, so that after the robot hand 1 swings for a long time, the set threaded component 4 is not easy to loosen.
[0029] Furthermore, a card plate 14 is rotatably connected to the top of the restraining rod 101, a card block 15 is fixedly connected to one side of the bottom of the card plate 14, a cross plate 16 is fixedly connected to the side wall of the mounting shell 3, and a card slot 17 is provided on one side of the top of the cross plate 16. After the tooth block 104 is separated from the tooth plate 42, the staff will card the card block 15 into the card slot 17, and use the cross plate 16 to limit and fix the card plate 14, the restraining rod 101 and the tooth block 104.
[0030] Working principle: when in use, place the mounting block 12 on the top of the electric clamp 2 between the four groups of positioning frames 11, at which time the fixing groove 13 on the side wall of the mounting block 12 is aligned with the fixing rod 6; then the staff pulls the constraint rod 101 to slide, and the set constraint rod 101 drives the tooth block 104 to separate from the tooth plate 42, so as to release the limit fixation of the two-way screw rod 41 by the tooth block 104; after the tooth block 104 is separated from the tooth plate 42, the staff will clamp the clamping block 15 into the clamping groove 17, and use the cross plate 16 to limit and fix the clamping plate 14, the constraint rod 101 and the tooth block 104; then the staff twists the two-way screw rod 41 to rotate, and the two symmetrically arranged vertical plates 5 move toward each other along the thread direction of the two-way screw rod 41. In this process The limit block 8 is set to slide on the limit rod 7, and the limit rod 7 is set to limit and constrain the vertical plate 5 during the movement; the vertical plate 5 drives the fixing rod 6 to be inserted into the fixing groove 13. When the fixing rod 6 is completely inserted into the fixing groove 13, the staff stops twisting the bidirectional screw rod 41, and then the staff moves the clamping block 15 out of the clamping groove 17 and loosens the constraint rod 101. The constraint rod 101 drives the tooth block 104 to re-engage with the tooth plate 42 under the action of the elastic force of the spring 103, so as to restore the limit fixation of the tooth block 104 to the bidirectional screw rod 41; this device uses the constraint component 10 to limit and fix the threaded component 4, so that after the robot hand 1 swings for a long time, the set threaded component 4 is not easy to loosen.
[0031] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A robot gripping mechanism for testing a Bluetooth PCBA board, comprising a robot (1) and an electric gripper (2), characterized in that: The end of the robot arm (1) is fixedly connected to a mounting shell (3), a threaded assembly (4) is rotatably connected to the side wall of the mounting shell (3), a vertical plate (5) is symmetrically threadedly connected to the threaded assembly (4), a fixing rod (6) is symmetrically fixedly connected to the sides of the two groups of vertical plates (5) close to each other, a limiting rod (7) is symmetrically fixedly connected between the side walls at both ends of the inner cavity of the mounting shell (3), a limiting block (8) is symmetrically fixedly connected to the two ends of the vertical plate (5), and the limiting block (8) is slidably arranged on the limiting rod (7), a mounting plate (9) is fixedly connected to the side wall of the mounting shell (3), and a constraint assembly (10) that is mutually engaged with the threaded assembly (4) is slidably arranged on the mounting plate (9), four groups of positioning frames (11) are fixedly connected in an array on the side of the mounting shell (3) away from the end of the robot arm (1), a mounting block (12) is fixedly connected to the top of the electric clamp (2), and fixing grooves (13) are symmetrically opened on the side walls at both ends of the mounting block (12).
2. According to claim 1, a robot gripping mechanism for Bluetooth PCBA board testing is characterized in that: The threaded assembly (4) comprises a bidirectional screw rod (41) rotatably connected to the side wall of the mounting shell (3), and the vertical plate (5) is threadedly connected to the bidirectional screw rod (41), and a tooth plate (42) is fixedly connected to the rod body of the bidirectional screw rod (41).
3. The robot gripping mechanism for Bluetooth PCBA board testing according to claim 2, characterized in that: A screw head is fixedly connected to one side of the bidirectional screw rod (41) located outside the mounting shell (3).
4. The robot gripping mechanism for Bluetooth PCBA board testing according to claim 3 is characterized in that: The outer ring surface of the screw head is provided with a plurality of grooves at equal angles.
5. The robot gripping mechanism for Bluetooth PCBA board testing according to claim 2, characterized in that: The constraint assembly (10) comprises a constraint rod (101) slidably arranged on a mounting plate (9); a circular plate (102) is fixedly connected to the rod body of the constraint rod (101); a spring (103) is wound around the rod body of the constraint rod (101); and the spring (103) is connected between the circular plate (102) and the bottom of the mounting plate (9); and a tooth block (104) which is mutually engaged with a tooth plate (42) is fixedly connected to the bottom of the constraint rod (101).
6. The robot gripping mechanism for Bluetooth PCBA board testing according to claim 5, characterized in that: The top of the restraining rod (101) is rotatably connected to a clamping plate (14), one side of the bottom of the clamping plate (14) is fixedly connected to a clamping block (15), the side wall of the mounting shell (3) is fixedly connected to a transverse plate (16), and one side of the top of the transverse plate (16) is provided with a clamping groove (17).