A screw slide device for a robot

Abstract

The present invention discloses a screw slide device for a manipulator, comprising: a mounting frame. The present invention realizes that a drive motor drives a screw and a second clamping column simultaneously by means of a pulley and a transmission belt, thereby causing the extension screw and the screw to rotate at the same speed and in the same direction, facilitating the subsequent docking between the first movable sleeve and the second movable sleeve and the screw and the extension screw, respectively. The screw drives the plug-in plate and the triangular bar to move through the second movable sleeve. When the plug-in plate moves, the U-shaped connecting plate is pushed and pulled through the inner concave plate, and the plug-in plate is automatically engaged and disengaged with the inner concave plate under the action of the arc edge limit plate and the triangular bar, thereby adjusting and changing the position of the U-shaped connecting plate and the extension screw in the connecting inner groove. After the extension screw is extended outside the connecting inner groove, the sliding distance of the slide is increased by the movement of the second movable sleeve docking on the extension screw. The moving size of the slide can be flexibly adjusted within a certain range according to the processing requirements of the manipulator, thereby improving the flexibility of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of a manipulator screw rod slide, and in particular to a manipulator screw rod slide device. Background Art

[0002] The lead screw slide is a commonly used linear motion device, widely used in automation, mechanical manufacturing, CNC processing, robotics and other fields. It uses the rotational motion of the lead screw to convert into linear motion, with high precision and high load capacity. The main components are lead screw, nut, slide, slide rail and bracket. The lead screw slide device of the manipulator is an important drive, commonly used in robots, automation equipment and various mechanical devices to achieve high-precision linear motion.

[0003] In the existing screw slide, the moving distance of the slide is mainly determined by the length of the screw. Since the length of the screw in the screw slide is fixed and cannot be adjusted, the moving distance of the slide cannot be adjusted according to the processing requirements of the robot. The fixed moving range of the slide leads to poor flexibility in the use of the screw slide. Summary of the Invention

[0004] The purpose of the present invention is to provide a screw slide device for a robot, which solves the problem that the moving distance of the slide in the traditional screw slide device is mainly determined by the length of the screw. Since the length of the screw in the screw slide is fixed and cannot be adjusted, the moving distance of the slide cannot be adjusted to a certain extent according to the processing requirements of the robot. The fixed moving range of the slide leads to poor flexibility in the use of the screw slide.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions, which include:

[0006] A mounting frame, wherein a connecting inner groove is provided inside the mounting frame, a driving motor is provided on one side of the mounting frame, a screw rod is rotated on the other side of the mounting frame, and a first movable sleeve is connected to the external thread of the screw rod;

[0007] A slide, the slide is arranged above the mounting frame, the first movable sleeve is located inside the slide, and the slide is used to support other mechanical components and bear the workload;

[0008] A path extension member is arranged inside the connecting inner groove, and the path extension member is used to increase the sliding path of the slide. The path extension member includes a support plate arranged on one side of the mounting frame and a second movable sleeve fixed under the first movable sleeve. Two U-shaped connecting plates are fixed on one side of the support plate, and both of the U-shaped connecting plates slide inside the connecting inner groove. An extension screw is rotated on one side of the support plate.

[0009] Preferably, a card slot is provided inside the extension screw rod and the screw rod, and a first card column and a second card column are respectively slid inside the two card slots, one end of the first card column extends to one side of the support plate, and one end of the second card column extends to one side of the mounting frame, and the second card column is passed through the interior of the second movable sleeve.

[0010] Preferably, two opposite groove bodies are provided inside the connecting inner groove, and the exteriors of the two U-shaped connecting plates are movably connected with a plurality of balls, and the plurality of balls are movably connected to the interior of the groove bodies.

[0011] Preferably, a path self-pushing and pulling member is provided below the second movable sleeve, and the path self-pushing and pulling member is used to help the path extension member automatically move in and out of the connecting inner groove to change its position.

[0012] Preferably, the path self-pushing and pulling member includes a hollow mounting block fixed under the second movable sleeve, an arc edge limiting plate fixed inside the connecting inner groove, and an inner concave plate fixed on one side of the two U-shaped connecting plates. A sliding plate is sliding inside the hollow mounting block, and multiple springs are fixed above the sliding plate. Two plug-in plates and triangular bars are fixed below the sliding plate. The two plug-in plates and the triangular bars extend to the bottom of the hollow mounting block, and two opposite limiting grooves are opened inside the connecting inner groove. The two U-shaped connecting plates slide inside the two limiting grooves respectively through sliders.

[0013] Preferably, two relative initial positioning grooves and two relative final positioning grooves are provided inside the connecting inner groove, and rubber strips are fixed to the outsides of the two inner concave plates.

[0014] Preferably, a co-driving member is provided on one side of the mounting bracket, and the co-driving member is used to help the driving motor to simultaneously drive the lead screw and the extension lead screw to rotate.

[0015] Preferably, the co-drive component includes two pulleys rotating on one side of the mounting frame, a transmission belt is provided between the two pulleys, one end of the screw rod and one end of the second clamping column are respectively fixed on one side of the two pulleys, and one end of the output shaft of the drive motor is fixedly connected to one of the pulleys.

[0016] Preferably, two opposite vertical slots are provided on the inner side of the slide, and two connecting arms are fixed to the outside of the first movable sleeve, with one end of the two connecting arms sliding inside the two vertical slots respectively.

[0017] Preferably, support grooves are provided above the two U-shaped connecting plates, two transverse grooves are provided above the mounting frame, the two support grooves are respectively connected to the two transverse grooves, and the bottom of the slide slides inside the two support grooves through two connecting feet.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The drive motor drives the screw rod and the second clamping column at the same time through the provided pulley and transmission belt, so that the extended screw rod and the screw rod rotate at the same speed and in the same direction, which is convenient for the later first movable sleeve and the second movable sleeve to dock with the screw rod and the extended screw rod respectively. The screw rod drives the plug-in plate and the triangular bar to move through the second movable sleeve. When the plug-in plate moves, the U-shaped connecting plate is pushed and pulled through the inner concave plate, and the plug-in plate is automatically engaged and disengaged with the inner concave plate under the action of the arc edge limit plate and the triangular bar, so as to adjust and change the position of the U-shaped connecting plate and the extended screw rod in the connecting inner groove. After the extended screw rod is extended to the outside of the connecting inner groove, the sliding distance of the slide is increased by relying on the movement of the second movable sleeve docking on the extended screw rod. The moving size of the slide can be flexibly adjusted within a certain range according to the processing requirements of the manipulator, thereby improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 for Figure 1 Partial split cross-sectional view;

[0022] Figure 3 It is a schematic diagram of the structure of the path extension member after extension in the present invention;

[0023] Figure 4 for Figure 3 Exploded cross-sectional view;

[0024] Figure 5 for Figure 4 A magnified schematic diagram of part A in the middle;

[0025] Figure 6 for Figure 4 Enlarged schematic diagram of part B in the middle.

[0026] 1. Mounting frame; 2. Connecting inner groove; 3. Driving motor; 4. Screw; 5. First moving sleeve; 6. Slide;

[0027] 7. Path extension member; 71. Support plate; 72. Second movable sleeve; 73. U-shaped connecting plate; 74. Extension screw; 75. Slot; 76. First clamping column; 77. Second clamping column; 78. Ball bearing; 79. Hollow mounting block; 710. Arc edge limiter; 711. Inner concave plate; 712. Sliding plate; 713. Spring; 714. Connecting plate; 715. Triangular strip; 716. Rubber strip; 717. Pulley; 718. Transmission belt;

[0028] 8. Trough body; 9. Limiting groove; 10. Initial positioning groove; 11. Final positioning groove; 12. Vertical groove; 13. Connecting arm; 14. Support groove; 15. Horizontal groove. DETAILED DESCRIPTION

[0029] The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

[0030] The present invention provides a technical solution: a raw material dissolving device for veterinary drug production, such as Figure 1-6 As shown, it includes a mounting frame 1, a slide 6, a path extension member 7, a path self-pushing and pulling member and a co-driving member. A connecting inner groove 2 is provided inside the mounting frame 1. A driving motor 3 is provided on one side of the mounting frame 1. The driving motor 3 is connected to an external control switch through existing technology. A screw rod 4 is rotated on the other side of the mounting frame 1. The external thread of the screw rod 4 is connected to a first movable sleeve 5. The slide 6 is provided above the mounting frame 1. The first movable sleeve 5 is located on the inner side of the slide 6. The slide 6 is used to support other mechanical components and carry the workload. Two opposite vertical slots 12 are provided on the inner side of the slide 6. Two connecting arms 13 are fixed to the outside of the first movable sleeve 5. One end of the two connecting arms 13 slides inside the two vertical slots 12 respectively. The weight of the bearing components above the slide 6 will only be applied to the mounting frame 1 and the two U-shaped connecting plates 73, and will not directly put pressure on the first movable sleeve 5 and the screw rod 4, thereby slowing down the bending time of the screw rod 4.

[0031] The path extension member 7 is arranged inside the connecting inner groove 2. The path extension member 7 is used to increase the sliding path of the slide 6. The maximum moving distance of the slide 6 is increased, which enables the screw slide device to handle larger workpieces or complete more complex tasks, thereby improving the application flexibility of the screw slide device. The path extension member 7 includes a support plate 71 arranged on one side of the mounting frame 1 and a second movable sleeve 72 fixed below the first movable sleeve 5. A plurality of mounting holes are provided below the support plate 71, and round balls are movably installed in the mounting holes. When the two U-shaped connecting plates 73 move in and out of the connecting inner groove 2, the round balls under the support plate 71 roll, making it easier for the U-shaped connecting plates 73 to move in and out. Two U-shaped connecting plates 73 are fixed on one side of the support plate 71. The two U-shaped The openings of the connecting plates 73 are arranged relative to each other, and the two U-shaped connecting plates 73 both slide inside the connecting inner groove 2. An extension screw rod 74 is rotated on one side of the support plate 71, and the extension screw rod 74 is located directly below the screw rod 4. When the two U-shaped connecting plates 73 slide out of the connecting inner groove 2, the extension screw rod 74 is extended to one end of the screw rod 4. When the two U-shaped connecting plates 73 are in the connecting inner groove 2, the extension screw rod 74 and the screw rod 4 correspond to each other up and down, and the extension screw rod 74 is shorter than the screw rod 4. Support grooves 14 are provided above the two U-shaped connecting plates 73, and two transverse grooves 15 are provided above the mounting frame 1. The two support grooves 14 are respectively connected to the two transverse grooves 15, and the bottom of the slide 6 slides inside the two support grooves 14 through two connecting feet.

[0032] The interior of the extended screw rod 74 and the interior of the screw rod 4 are both provided with a card slot 75, and the interior of the two card slots 75 are respectively slid with a first card column 76 and a second card column 77. One end of the first card column 76 extends to one side of the support plate 71. When the support plate 71 is away from the mounting bracket 1, the first card column 76 will move out from the screw rod 4, maintaining the rotational connection between one end of the screw rod 4 and the support plate 71, maintaining the support point of the screw rod 4, and one end of the second card column 77 extends to one side of the mounting bracket 1. Similarly, when the support plate 71 is away from the mounting bracket 1, the second card column 77 will slide out from the extended screw rod 74, keeping the extended screw rod 74 The rotational connection between one end and the mounting frame 1 maintains the support point of the extension screw rod 74. The second clamping column 77 is passed through the interior of the second movable sleeve 72. Since the second clamping column 77 is thinner than the extension screw rod 74, it will not cause any obstruction or impact on the second movable sleeve 72. Two opposing groove bodies 8 are opened inside the connecting inner groove 2. The outsides of the two U-shaped connecting plates 73 are movably connected with multiple ball bearings 78. The ball bearings 78 installed on the two U-shaped connecting plates 73 are lined up in a row, and the ball bearings 78 on one U-shaped connecting plate 73 correspond to one groove body 8. Multiple ball bearings 78 are movably connected to the inside of the groove body 8.

[0033] The path self-pushing and pulling member is arranged below the second movable sleeve 72. The path self-pushing and pulling member is used to help the path extension member 7 automatically enter and exit the connecting inner groove 2 to change its position. When the screw rod 4 is driven, as the first movable sleeve 5 and the second movable sleeve 72 move, the path self-pushing and pulling member completes the pushing and pulling work of the two U-shaped connecting plates 73. The path self-pushing and pulling member includes a hollow mounting block 79 fixed below the second movable sleeve 72, an arc edge limiting piece 710 fixed to the inside of the connecting inner groove 2, and an inner concave plate 711 fixed to one side of the two U-shaped connecting plates 73. The upper part of the inner concave plate 711 is opened The cam 712 is fixed on the top of the hollow mounting block 79, and a plurality of springs 713 are fixed on the top of the sliding plate 712. One end of each of the plurality of springs 713 is fixed on the top of the inner wall of the hollow mounting block 79. The spring 713 plays the role of automatically resetting the sliding plate 712. When the spring 713 is at its original length, the bottom of the sliding plate 712 is tightly attached to the bottom of the inner wall of the hollow mounting block 79. Two plug-in plates 714 and triangular bars 71 are fixed on the bottom of the sliding plate 712. 5. The triangular bar 715 is located between the two plug-in plates 714. The two plug-in plates 714 and the triangular bar 715 extend to the bottom of the hollow mounting block 79. The two plug-in plates 714 are respectively arranged above the two inner concave plates 711. Two relative limit grooves 9 are opened inside the inner groove 2. The two U-shaped connecting plates 73 slide in the two limit grooves 9 through the sliders. The limit grooves 9 are used to limit the sliding range (i.e., the sliding path length and position) of the U-shaped connecting plate 73. The inner groove 2 is connected to the interior of the groove 2 and has two relative initial positioning grooves 10 and two relative When the locking cam 73 is in the closed position, the locking cam 73 is in the closed position, and the locking cam 73 is in the closed position, so that the U-shaped locking cam 73 is in the closed position.

[0034] The co-drive component is arranged on one side of the mounting frame 1. The co-drive component is used to help the driving motor 3 to simultaneously drive the screw rod 4 and the extension screw rod 74 to rotate. The co-drive component includes two pulleys 717 rotating on one side of the mounting frame 1. A transmission belt 718 is provided between the two pulleys 717. One end of the screw rod 4 and one end of the second clamping column 77 are respectively fixed to one side of the two pulleys 717. One end of the output shaft of the driving motor 3 is fixedly connected to one of the pulleys 717. A hidden shell is provided on the outside of the two pulleys 717 to hide and block the pulley 717 and the transmission belt 718. The driving motor 3 drives the pulley 717 connected to it, and the pulley 717 drives the other pulley 717 to rotate together through the transmission belt 718, thereby driving the screw rod 4 and the second clamping column 77 to rotate in the same direction at the same time, and the second clamping column 77 drives the extension screw rod 74 and the screw rod 4 to rotate in the same direction at the same time.

[0035] When in use, the driving motor 3 is started to drive the pulley 717 connected thereto to rotate, and the pulley 717 drives the screw rod 4 and the second clamping column 77 to rotate in the same direction at the same time through the transmission belt 718 and another pulley 717. The second clamping column 77 drives the extension screw rod 74 to rotate in the same direction as the screw rod 4. When the screw rod 4 rotates, the first movable sleeve 5 and the second movable sleeve 72 move along the screw rod 4 at the same time. The first movable sleeve 5 drives the slide 6 to move through the two connecting arms 13. At the same time, the second movable sleeve 72 The second movable sleeve 72 drives the hollow mounting block 79 to move, and the hollow mounting block 79 pushes the U-shaped connecting plate 73 to slide in the limiting groove 9 through the plug-in plate 714 inserted in the inner concave plate 711, thereby pushing the extension screw 74 outward to the connecting inner groove 2. When the triangular bar 715 moves to the position where the arc edge limiting piece 710 is located, the arc edge limiting piece 710 pushes the inclined surface of the triangular bar 715, causing the triangular bar 715 to gradually slide into the hollow mounting block 79 and push the sliding plate When the plug-in plate 714 is moved out of the inner concave plate 711, the rubber strip 716 is inserted into the corresponding end positioning groove 11 to limit the position of the U-shaped connecting plate 73, thereby preventing the U-shaped connecting plate 73 from moving easily. At this time, the position of the extension screw rod 74 is fixed, and the second movable sleeve 72 continues to move with the movement of the first movable sleeve 5 on the screw rod 4, driving the hollow mounting block 79 to move. The triangular strip 715 passes through the arc edge limit piece 710. After that, the extrusion on the sliding plate 712 is released, and the plug-in plate 714 and the triangular bar 715 are reset under the elastic force of the spring 713. When the second movable sleeve 72 continues to move, it is correspondingly inserted into one end of the extension screw rod 74 that has stopped extending outward. When the extension screw rod 74 and the screw rod 4 rotate in the same direction and speed, the second movable sleeve 72 will move along the extension screw rod 74, and the first movable sleeve 5 will be separated from the screw rod 4. The slide 6 slides into the support groove 14 and is supported by the connecting foot.

[0036] When the driving motor 3 rotates in the opposite direction, the extension screw rod 74 and the screw rod 4 are reversed, and the second movable sleeve 72 moves on the extension screw rod 74 toward the screw rod 4. When the first movable sleeve 5 contacts one end of the screw rod 4, as the second movable sleeve 72 moves and the screw rod 4 and the extension screw rod 74 rotate at the same speed, they are reconnected to the outside of the screw rod 4. The second movable sleeve 72 is separated from the extension screw rod 74 and is pushed into the hollow mounting block 79 again when the triangular bar 715 moves to the arc edge limit piece 710, thereby lifting the plug plate 714 upward to above the inner concave plate 711. When the triangular bar 715 passes the arc edge limit piece 710, the sliding plate 71 2 is squeezed out, and when the plug-in plate 714 moves to the corresponding groove above the inner concave plate 711, it is pushed by the spring 713 to re-engage the groove. At this time, the second movable sleeve 72 will pull the U-shaped connecting plate 73 back to the inner groove 2 under the drive of the first movable sleeve 5. The moving distance of the slide 6 can be adjusted to a certain extent, and when the slide 6 moves, it can automatically push out and pull in the extension screw rod 74 located in the inner groove 2. When the screw slide device is transported, the slide 6 is adjusted to the side close to the drive motor 3, which reduces the size of the device to a minimum, prevents it from occupying a large space, and can help increase the number of screw slides that can be transported.

[0037] The above description is merely a preferred embodiment of the present invention and is intended to be illustrative rather than restrictive of the present invention. Those skilled in the art will appreciate that many changes, modifications, and even equivalents may be made to the present invention within the spirit and scope of the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A screw slide device for a robot, characterized in that: include: A mounting frame (1), wherein a connecting inner groove (2) is provided inside the mounting frame (1), a driving motor (3) is provided on one side of the mounting frame (1), a screw rod (4) is rotated on the other side of the mounting frame (1), and a first movable sleeve (5) is connected to the outer thread of the screw rod (4); A slide (6), the slide (6) being arranged above the mounting frame (1), the first movable sleeve (5) being located on the inner side of the slide (6), and the slide (6) being used to support other mechanical components and bear a workload; A path extension member (7), the path extension member is arranged inside the connecting inner groove (2), the path extension member (7) is used to increase the sliding path of the slide (6), the path extension member (7) includes a support plate (71) arranged on one side of the mounting frame (1) and a second movable sleeve (72) fixed below the first movable sleeve (5), two U-shaped connecting plates (73) are fixed on one side of the support plate (71), both of the two U-shaped connecting plates (73) slide inside the connecting inner groove (2), and support grooves (14) are provided above the two U-shaped connecting plates (73), and the bottom of the slide (6) slides inside the two support grooves (14) respectively through two connecting legs, and an extension screw (74) is rotated on one side of the support plate (71); A slot (75) is provided inside the extension screw rod (74) and the screw rod (4), and a first clamping column (76) and a second clamping column (77) are respectively slid inside the two clamping slots (75), one end of the first clamping column (76) extends to one side of the support plate (71), and one end of the second clamping column (77) extends to one side of the mounting frame (1), and the second clamping column (77) is passed through the interior of the second movable sleeve (72), and the second clamping column (77) drives the extension screw rod (74) and the screw rod (4) to rotate simultaneously in the same direction, and the second movable sleeve (72) moves along the extension screw rod (74); A path self-pushing and pulling member is provided below the second movable sleeve (72), and the path self-pushing and pulling member is used to help the path extension member (7) automatically move in and out of the connecting inner groove (2) to change its position.

2. The screw slide device of a manipulator according to claim 1, characterized in that: Two opposing groove bodies (8) are provided inside the connecting inner groove (2), and the exteriors of the two U-shaped connecting plates (73) are movably connected to a plurality of balls (78), and the plurality of balls (78) are movably connected to the interior of the groove bodies (8).

3. The screw slide device of a manipulator according to claim 2, characterized in that: The path self-pushing and pulling member comprises a hollow mounting block (79) fixed below the second movable sleeve (72), an arc-edge limiting plate (710) fixed inside the connecting inner groove (2), and an inner concave plate (711) fixed on one side of two U-shaped connecting plates (73); a sliding plate (712) is slid inside the hollow mounting block (79); a plurality of springs (713) are fixed above the sliding plate (712); two plug-in plates (714) and a triangular bar (715) are fixed below the sliding plate (712); the two plug-in plates (714) and the triangular bar (715) both extend to the bottom of the hollow mounting block (79); two opposing limiting grooves (9) are provided inside the connecting inner groove (2); and the two U-shaped connecting plates (73) slide inside the two limiting grooves (9) respectively through sliders.

4. The screw slide device of a manipulator according to claim 3, characterized in that: Two opposing initial positioning grooves (10) and two opposing final positioning grooves (11) are provided inside the connecting inner groove (2), and rubber strips (716) are fixed to the outsides of the two inner concave plates (711).

5. The screw slide device of a robot according to claim 1, characterized in that: A co-driving member is provided on one side of the mounting frame (1), and the co-driving member is used to help the driving motor (3) to simultaneously drive the screw rod (4) and the extension screw rod (74) to rotate.

6. The screw slide device of a robot according to claim 5, characterized in that: The co-drive component comprises two pulleys (717) rotating on one side of the mounting frame (1), a transmission belt (718) is sleeved between the two pulleys (717), one end of the screw rod (4) and one end of the second clamping column (77) are respectively fixed to one side of the two pulleys (717), and one end of the output shaft of the drive motor (3) is fixedly connected to one of the pulleys (717).

7. The screw slide device of a manipulator according to claim 1, characterized in that: Two opposite vertical slots (12) are provided on the inner side of the slide (6), and two connecting arms (13) are fixed to the outside of the first movable sleeve (5), with one end of the two connecting arms (13) sliding inside the two vertical slots (12) respectively.

8. The screw slide device of a manipulator according to claim 7, characterized in that: Two transverse grooves (15) are provided above the mounting frame (1), and the two supporting grooves (14) are respectively connected to the two transverse grooves (15).

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