Cylindrical material self-adaptive holding and clamping mechanism for AGV (Automatic Guided Vehicle)

Abstract

The utility model relates to the technical field of material holding and clamping, in particular to a cylindrical material self-adaptive holding and clamping mechanism for an AGV (Automatic Guided Vehicle), which comprises two fixed seats, support arms hinged to the bottoms of the fixed seats, clamping blocks hinged to the bottoms of the support arms, a double-thread screw rod mounted above the support arms, shaft seats sleeved at two ends of the double-thread screw rod, and a clamping block mounted on the shaft seats, a sliding sleeve is in threaded connection with the double-thread lead screw, the bottom of the sliding sleeve is hinged to the supporting arm, a second chain wheel is installed on the double-thread lead screw, a rack is installed on the side edge of the double-thread lead screw, a motor is installed on the rack, a first chain wheel is installed at the output end of the motor, and the first chain wheel and the second chain wheel are sleeved with a transmission chain. The clamping blocks are installed in a hinged mode, the effect that the clamping blocks are pulled outwards to be opened or pushed inwards to be clamped is achieved through movement of the sliding sleeves and connection of the connecting rods, the clamping blocks are hinged to the supporting arms, when cylindrical materials with different diameters are clamped, the position and the angle can be adjusted in a self-adaptive mode, and active adjustment is not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to material embrace and clamp technical field, concretely relates to a cylindrical material self -adaptation embrace and clamp mechanism for AGV. BACKGROUND

[0002] AGV is automatic guiding transport vehicle, is equipped with automatic guiding system, can automatic travel or tow cargo platform to specified place according to setting route, realizes the automatic loading and unloading and the conveyance of material unmanned transport equipment.AGV transports the material type to have a variety, and the cylindrical material is one kind of material shape commonly seen.

[0003] At present, the embrace and clamp structure type of cylindrical material has a variety, but basically all utilize lever principle to realize the embrace and clamp action of cylindrical material, and clamp the material by this, since lever needs to rotate, and before embracing and clamping, the jaw also needs to open, when embracing and clamping the cylindrical material of different diameters, the embrace and clamp mechanism needs to carry out corresponding adjustment at present, to ensure that the jaw can stably or maximally contact with the cylindrical material, to obtain the stable clamping effect, this active adjustment consumes a certain time, and if not classifying the cylindrical material of different diameters in advance, when transporting uniformly, then needs frequent adjustment. INVENTION CONTENTS

[0004] The utility model discloses in order to realize the above-mentioned purpose specifically adopts the following technical scheme:

[0005] A cylindrical material self-adaptive embrace and clamp mechanism for AGV, including two fixed seats, the bottom of fixed seat is hinged with support arm, the bottom of support arm is hinged with clamping block, the upper portion of support arm is installed with double thread screw rod, both ends of double thread screw rod are sleeved with shaft seat, the threaded connection of double thread screw rod has sliding sleeve, the bottom of sliding sleeve is hinged with support arm, the installation of double thread screw rod has sprocket no.

[0006] Further, the bottom end of fixed seat is installed with connecting rod, the top end of connecting rod is penetrated with pin no. 1 with the bottom end of fixed seat, the bottom end of connecting rod is fixed with support arm, the bottom end of support arm is installed with clamping block, the upper portion of clamping block is provided with through hole no. 1, and the bottom end of support arm is penetrated with sleeve shaft, the outside of sliding sleeve is installed with U-shaped seat, the bottom end of U-shaped seat is installed with connecting rod, the top end of connecting rod is penetrated with pin no. 2 with the bottom end of U-shaped seat, and the bottom end of connecting rod is hinged with the bottom end of connecting rod.

[0007] Further, the inside of two fixed seats is penetrated with double thread screw rod, and the double thread of double thread screw rod is located at both ends, and the screw direction of both ends is opposite, and sprocket no. 2 is installed in the middle of double thread screw rod.

[0008] Further, the outer side of the clamping block has three protrusions, and a through hole one is arranged on one of the protrusions.

[0009] Further, a crossbar is mounted on the support arm above the sleeve shaft by bolts, and an ear is welded and fixed on the top of the clamping block, and the ear and the crossbar are provided with a tension spring.

[0010] Further, two through holes two are arranged on the remaining two protrusions of the clamping block, the diameter of the through hole two is smaller than that of the through hole one, rollers are mounted on the clamping blocks on both sides of the through hole two, and a pin three penetrates the through hole two in the middle of the rollers.

[0011] Further, the fixing seat is provided with two groups, the inner sides of the two groups of fixing seats are penetrated by double-threaded screws, and the rack is located at the middle position of the two double-threaded screws.

[0012] Further, a sleeve ring is further sleeved on the sleeve shaft between the clamping blocks and the support arm.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model discloses a clamping block is installed in the mode of hinging, and the effect that the clamping block is pulled outward to open or is pushed inward to clamp is realized by the movement of the sliding sleeve and the connection of the connecting rod, which is convenient for use, and the clamping block and the support arm are hinged, can rotate freely within the hinged range, and when clamping cylindrical materials of different diameters, the position and the angle can be adjusted adaptively without active adjustment.

[0015] 2. In the utility model, the top of the clamping block is pulled by the tension spring, the bottom of the clamping block is forced obliquely upward, when clamping cylindrical materials, a certain supporting effect can be provided from the bottom of the cylindrical materials, and the stability during clamping is improved.

[0016] 3. In the utility model, two sliding sleeves are driven by the double-threaded screw at a time, and the two clamping blocks below can move relatively, so that clamping is facilitated.

[0017] 4. In the utility model, three protrusions are arranged on the clamping block, which facilitates adjustment according to the surfaces of cylindrical materials of different diameters, and rollers are arranged on two of the protrusions, which can reduce the damage to the surface of the cylindrical material. DRAWINGS

[0018] Figure 1 It is the perspective view of the utility model;

[0019] Figure 2 It is the setting schematic view of the clamping block in the utility model;

[0020] Figure 3 It is the setting schematic view of the tension spring in the utility model;

[0021] Figure 4 This is a schematic diagram of the roller arrangement in this utility model;

[0022] Figure 5 This is a schematic diagram of the motor configuration in this utility model;

[0023] Figure 6 This is a schematic diagram of the clamping action of this utility model.

[0024] Reference numerals in the attached diagram: 1. Fixed seat; 2. Double threaded screw; 3. Connecting rod; 4. Support arm; 5. Clamping block; 6. U-shaped seat; 7. Sliding sleeve; 8. Connecting rod; 9. Pin one; 10. Pin two; 11. Sleeve shaft; 12. Collar; 13. Crossbar; 14. Tension spring; 15. Hanging lug; 16. Through hole one; 17. Through hole two; 18. Roller; 19. Pin three; 20. Shaft seat; 21. Frame; 22. Motor; 23. Sprocket one; 24. Sprocket two; 25. Transmission chain. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0026] This application provides an adaptive clamping mechanism for cylindrical materials in AGVs, and offers the following technical solution, which will be discussed below. Figures 1-6 Please provide a detailed explanation:

[0027] An adaptive clamping mechanism for cylindrical materials used in AGVs, such as Figures 1-5 As shown, it includes two fixed seats 1, and a double-threaded screw 2 passes through the inner side of the two fixed seats 1. The two ends of the double-threaded screw 2 are sleeved with shaft seats 20. The double threads of the double-threaded screw 2 are located at both ends, and the helical directions of the threads at both ends are opposite. A connecting rod 3 is installed at the bottom end of the fixed seat 1. A pin 9 passes through the top end of the connecting rod 3 and the bottom end of the fixed seat 1. A support arm 4 is welded and fixed to the bottom end of the connecting rod 3. A clamping block 5 is installed at the bottom end of the support arm 4. A through hole 16 is opened on the clamping block 5. A sleeve shaft 11 passes through the through hole 16 and the bottom end of the support arm 4.

[0028] The double thread screw rod 2 is threadedly connected with the sliding sleeve 7, the outer side of the sliding sleeve 7 is provided with the U-shaped seat 6 through bolt installation, the bottom end of the U-shaped seat 6 is provided with the connecting rod 8, the top end of the connecting rod 8 is penetrated by the pin 10, the bottom end of the connecting rod 8 is hingedly connected with the bottom end of the connecting rod 3, the middle of the double thread screw rod 2 is provided with the sprocket 24 through bolt installation, the side of the double thread screw rod 2 is provided with the rack 21, the rack 21 is provided with the motor 22 through bolt installation, the output end of the motor 22 is provided with the sprocket 23 through bolt installation, the sprocket 23 and the sprocket 24 are sleeved with the transmission chain 25.

[0029] Before use, the motor 22 is started, the output end of the motor 22 drives the sprocket 23 to rotate, the sprocket 23 and the sprocket 24 are sleeved with the transmission chain 25, the sprocket 24 is driven to rotate under the transmission of the transmission chain 25, the sprocket 24 is installed with the double thread screw rod 2, so that the double thread screw rod 2 is finally driven to rotate, at this time, the sliding sleeve 7 threadedly connected with the double thread screw rod 2 is driven to move linearly along the double thread screw rod 2 under the driving of the thread structure, the two threads of the double thread screw rod 2 are opposite, so that the movement of the two sliding sleeves 7 on the double thread screw rod 2 is relative movement, that is, the two sliding sleeves 7 are simultaneously close to each other or simultaneously far away from each other, the two sliding sleeves 7 are first controlled to be simultaneously far away from each other, so that the gap of the two clamping blocks 5 is expanded to ensure that the cylindrical material to be clamped can be accommodated.

[0030] At this time, the cylindrical material can be driven to move upward by other mechanisms, so that it enters between the two clamping blocks 5, when the two clamping blocks 5 are located below the widest position of the cylindrical material, the upward movement of the cylindrical material is stopped, at this time, the motor 22 is controlled to work again, at this time, the motor 22 is reversely driven to drive the two sliding sleeves 7 to be close to each other, as the two sliding sleeves 7 are continuously close to each other, the two clamping blocks 5 abut against the circumferential surface of the cylindrical material, at this time, the motor 22 continues to reverse, the two sliding sleeves 7 continue to be close to each other, under the continuous movement of the sliding sleeve 7, the connecting rod 8 pushes the connecting rod 3, so that it is pushed to the middle of the double thread screw rod 2, since the clamping block 5 has abutted against the cylindrical material at this time, the pushing force of the connecting rod 8 on the connecting rod 3 is finally applied to the cylindrical material by the clamping block 5, so that the clamping block 5 clamps the cylindrical material, when the running load of the motor 22 exceeds the safety range, the motor 22 is stopped, which indicates that the clamping block 5 has completely clamped the cylindrical material.

[0031] As shown in Figure 5 The outer side of the clamping block 5 has three protruding parts, the through hole 16 is formed in one of the protruding parts.

[0032] When the clamping block 5 approaches the cylindrical material, the remaining two protruding parts abut against the surface of the cylindrical material, the protruding of the protruding part is beneficial to clamping the surface of the cylindrical material, so as to ensure that there is a large enough contact surface, thereby improving the stability during clamping.

[0033] As Figure 3 shown, the support arm 4 above the sleeve shaft 11 is bolted with a crossbar 13, the top of the clamping block 5 is welded with a hanging lug 15, the hanging lug 15 and the crossbar 13 are installed with a tension spring 14, and the two ends of the tension spring 14 are hooked on the hanging lug 15 and the crossbar 13.

[0034] The tension spring 14 always pulls the top end of the clamping block 5, when the clamping block 5 is located below the widest position of the cylindrical material and starts to clamp the cylindrical material, the tension spring 14 pulls the clamping block 5, so that the protruding part at the bottom of the clamping block 5 is inclined upward, thereby stably abutting against the surface of the cylindrical material, and the cylindrical material is slightly lifted upward through the force direction from both sides to the middle of the two clamping blocks 5, which can balance a part of the gravity of the cylindrical material during the clamping and transporting, and if the cylindrical material falls, it not only needs to overcome the pressure applied by the lower clamping block 5 pushed by the connecting rod 8, but also needs to overcome the support of the protruding part at the bottom of the clamping block 5 to the cylindrical material pulled by the tension spring 14, so the difficulty of the cylindrical material falling is increased, and the reliability and stability of the clamping are improved.

[0035] As Figure 4 shown, the remaining two protruding parts of the clamping block 5 are provided with through holes two 17, the diameter of the through holes two 17 is smaller than the diameter of the through holes one 16, the clamping block 5 on both sides of the through holes two 17 is installed with a roller 18, and the middle of the roller 18 is penetrated with a pin three 19 in the through holes two 17.

[0036] The roller 18 can rotate under the support of the pin three 19, after the clamping operation once, the next clamping operation can be reset while controlling the motor 22 to work, so that the two clamping blocks 5 are opened, at this time the roller 18 can contact and roll on the surface of the cylindrical material until the clamping block 5 is located below the widest position of the cylindrical material for clamping, the reset of the two clamping blocks 5 can be performed at the same time when the entire clamping mechanism is reset, which saves the reset waiting time, and the roller 18 facilitates the contact with the surface of the cylindrical material. At the same time, if the cylindrical material is a material with a surface that is easy to damage, the roller 18 can avoid or reduce the damage to the surface of the cylindrical material.

[0037] As Figure 1 shown, the fixed seat 1 is provided with two groups of two, the inner sides of the two groups of fixed seats 1 are penetrated with double-threaded lead screws 2, and the rack 21 is located at the middle position of the two double-threaded lead screws 2.

[0038] According to the length of the cylindrical material, the two groups of fixed seats 1 can be set with different distances to realize the effect of clamping from both ends or positions close to both ends of the cylindrical material, so as to balance the cylindrical material, especially the cylindrical material with a certain size, and ensure the stable stress after clamping.

[0039] As Figure 3As shown, the sleeve ring 12 is sleeved on the sleeve shaft 11 between the two sides of the clamping block 5 and the support arm 4.

[0040] The sleeve ring 12 is used for stabilizing the clamping block 5 without affecting the movement between the clamping block 5 and the support arm 4.

[0041] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will accord with the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cylindrical material adaptive clamping mechanism for AGVs, comprising two fixed seats (1), characterized in that, A support arm (4) is hinged to the bottom of the fixed base (1), and a clamping block (5) is hinged to the bottom of the support arm (4). A double threaded screw (2) is installed above the support arm (4). A shaft seat (20) is sleeved at both ends of the double threaded screw (2). A sliding sleeve (7) is threaded on the double threaded screw (2). The bottom of the sliding sleeve (7) is hinged to the support arm (4). A sprocket (24) is installed on the double threaded screw (2). A frame (21) is installed on the side of the double threaded screw (2). A motor (22) is installed on the frame (21). A sprocket (23) is installed at the output end of the motor (22). A transmission chain (25) is sleeved on the sprocket (23) and the sprocket (24).

2. The cylindrical material adaptive clamping mechanism for AGV according to claim 1, characterized in that, A connecting rod (3) is installed at the bottom of the fixed seat (1). A pin (9) passes through the top of the connecting rod (3) and the bottom of the fixed seat (1). A support arm (4) is fixed at the bottom of the connecting rod (3). A clamping block (5) is installed at the bottom of the support arm (4). A through hole (16) is opened on the clamping block (5). A sleeve shaft (11) passes through the through hole (16) and the bottom of the support arm (4). A U-shaped seat (6) is installed on the outside of the sliding sleeve (7). A connecting rod (8) is installed at the bottom of the U-shaped seat (6). A pin (10) passes through the top of the connecting rod (8) and the bottom of the U-shaped seat (6). The bottom of the connecting rod (8) is hinged to the bottom of the connecting rod (3).

3. The cylindrical material adaptive clamping mechanism for AGV according to claim 2, characterized in that, The double-threaded screw (2) passes through the inner side of the two fixed seats (1). The double threads of the double-threaded screw (2) are located at both ends, and the double threads at both ends are in opposite directions. The second sprocket (24) is installed in the middle of the double-threaded screw (2).

4. The cylindrical material adaptive clamping mechanism for AGV according to claim 2, characterized in that, The clamp (5) has three protrusions on its outer side, and a through hole (16) is opened on one of the protrusions.

5. The cylindrical material adaptive clamping mechanism for AGV according to claim 4, characterized in that, A horizontal stop bar (13) is bolted to the support arm (4) above the sleeve shaft (11), and a hanging ear (15) is welded to the top of the clamping block (5). A tension spring (14) is installed on the hanging ear (15) and the horizontal stop bar (13).

6. The cylindrical material adaptive clamping mechanism for AGV according to claim 4, characterized in that, The remaining two protrusions of the clamping block (5) are provided with through holes two (17). The diameter of through hole two (17) is smaller than that of through hole one (16). Rollers (18) are installed on the clamping blocks (5) on both sides of through hole two (17). Pin three (19) passes through the middle of roller (18) and through hole two (17).

7. A cylindrical material adaptive clamping mechanism for AGV according to any one of claims 1-6, characterized in that, The fixed seat (1) is provided in two groups of two, and the inner side of each fixed seat (1) is penetrated by a double threaded screw (2). The frame (21) is located in the middle of the two double threaded screws (2).

8. The cylindrical material adaptive clamping mechanism for AGV according to claim 2, characterized in that, A collar (12) is also sleeved on the sleeve shaft (11) between the two sides of the clamping block (5) and the support arm (4).

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