An inner support type clamping device for a tire

Abstract

The present invention provides an inner support type clamping device for a tire, belonging to the technical field of tire processing equipment. It includes a clamping fixed seat, on which a lifting mechanism and a clamping mechanism are provided. The clamping mechanism includes a first cylinder, a cylinder connecting plate is fixed on the piston rod of the first cylinder, and three lifting screw rods are fixed at the lower end of the cylinder connecting plate. A clamping vertical shaft is fixed at the bottom of the clamping fixed seat, and the clamping vertical shaft is parallel to the lifting screw rods. A plurality of sliding plates are slidably arranged on the clamping vertical shaft, and a plurality of short joints are evenly distributed on the sliding plates. A vertical shaft fixing plate is arranged below each sliding plate, and long joints corresponding to the short joints up and down are evenly distributed on the vertical shaft fixing plate by means of hinging. The end of each short joint and the end of each long joint are both hinged to the same inner support plate, and the hinged end of the short joint and the inner support plate is located above the hinged end of the long joint and the inner support plate. The present invention has the advantages of improving the tire grasping efficiency and the placement accuracy rate, etc.

Description

Technical Field

[0001] The present invention belongs to the technical field of tire processing equipment, and particularly refers to an inner support type clamping device for tires. Background Art

[0002] With the development of mechanization, the traditional manual production and processing methods have gradually been replaced by machinery, which operates or is controlled automatically through the set programs or instructions.

[0003] For the traditional grasping of tires, manual taking and placing are adopted. However, there are relatively large defects in both the efficiency of taking and the accuracy of placing positions in the manual method, which affects the overall production efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and to provide an inner support type clamping device for tires, which can effectively improve the grasping efficiency of tires and the accuracy of placing, and improve the production efficiency.

[0005] The purpose of the present invention is achieved as follows:

[0006] An inner support type clamping device for tires includes a clamping fixing seat. A lifting mechanism and a clamping mechanism are arranged on the clamping fixing seat. The clamping mechanism includes a first cylinder fixed on the clamping fixing seat. A cylinder connecting plate is fixed on the piston rod of the first cylinder. Three lifting screw rods with a regular triangular cross-section distribution are fixed at the lower end of the cylinder connecting plate. A clamping vertical shaft located at the center of the three lifting screw rods is fixed at the bottom of the clamping fixing seat. The clamping vertical shaft is parallel to the lifting screw rods. A plurality of sliding plates are slidably arranged on the clamping vertical shaft. The three lifting screw rods are fixed on each vertical shaft sliding plate. A plurality of short joints are evenly distributed on the sliding plates by means of hinging. A vertical shaft fixing plate fixed on the clamping vertical shaft is arranged below each sliding plate. Long joints corresponding to the short joints up and down are evenly distributed on the vertical shaft fixing plate by means of hinging. The ends of each short joint and the ends of the long joints are all hinged to the same inner support plate, and the hinged end of the short joint and the inner support plate is located above the hinged end of the long joint and the inner support plate. When the first cylinder drives the piston rod to move downward, the lifting screw rods and the vertical shaft sliding plates move downward, and the inner support plate expands outward along with the short joints and the long joints.

[0007] The present invention is further arranged such that a vertical shaft linear bearing is slidably arranged on the clamping vertical shaft, and the inner wall of the vertical shaft sliding plate abuts against the outer wall of the vertical shaft linear bearing.

[0008] The present invention is further configured such that a number of cylinder support columns are fixed on the clamping and fixing base. The top of the support column is provided with a cylinder fixing plate for fixing the first cylinder. The piston rod of the first cylinder penetrates through the cylinder fixing plate, and a cylinder connecting plate is fixed to the bottom of the piston rod. Three sliding shafts with a regular triangular cross-section distribution are fixed to the lower end of the cylinder connecting plate. The sliding shafts penetrate through the clamping and fixing base, and the bottom of the sliding shafts is fixedly connected to the lifting screw rod through sliding connecting rods.

[0009] The present invention is further configured such that a sliding shaft linear bearing is provided between the sliding shaft and the clamping and fixing base.

[0010] The present invention is further configured such that a shaft clamp is provided at the upper end of the outer wall of the vertical shaft linear bearing, and a sliding support plate is provided at the lower end of the outer wall of the vertical shaft linear bearing.

[0011] The present invention is further configured such that the lifting mechanism includes a lifting fixing plate provided on one side of the clamping and fixing base. The lifting fixing plate is arranged on one side of the clamping and fixing base in a manner of sliding along a transverse slide rail. A second cylinder for driving the clamping and fixing base to slide horizontally is provided on one side of the lifting fixing plate. A number of longitudinally sliding sliders and helical gears for longitudinal sliding are fixed on one side of the lifting fixing plate. A servo motor is provided on the lifting fixing plate, and the helical gear is in transmission connection with the servo motor through a differential.

[0012] The present invention is further configured such that a lifting connecting plate is fixed on one side of the lifting fixing plate. The second cylinder is horizontally fixed on the lifting connecting plate, and the end of the second cylinder is fixedly connected to the clamping and fixing base.

[0013] The present invention is further configured such that a buffer slide rail is horizontally provided on the lifting fixing plate. A buffer slider is adapted to the buffer slide rail. A buffer fixing plate is fixed on the buffer slider. The end of the second cylinder is fixed on the buffer fixing plate. A buffer seat is formed on the facing surface of the clamping and fixing base and the lifting fixing plate. A buffer shaft penetrates through the buffer seat. One end of the buffer shaft is fixedly connected to the buffer fixing plate. A return spring is sleeved on the buffer shaft between the buffer fixing plate and the buffer seat.

[0014] The present invention is further configured such that the second cylinder is a double-shaft cylinder.

[0015] The present invention is further configured such that the clamping and fixing base has an L-shaped structure.

[0016] The prominent and beneficial technical effects of the present invention compared with the prior art are:

[0017] 1. The provided inner support type clamping device of the present invention has a clamping mechanism that can drive the opening and gathering of the inner support plate through the first cylinder, meeting the inner support type clamping of the entire tire, causing little damage to the tire, and having higher handling efficiency. The lifting mechanism facilitates the up and down movement and left and right sliding of the clamping fixing seat, and also realizes the left and right and up and down movement of the entire tire.

[0018] 2. The present invention further sets a vertical axis linear bearing on the vertical axis to effectively reduce friction when the vertical axis sliding plate slides, making it easy for long-term use and extending the service life.

[0019] 3. The present invention further has the first cylinder supported by a cylinder support column to ensure stability and make the opening and closing of the inner support plate more stable.

[0020] 4. The provided lifting mechanism of the present invention provides a good buffering effect during left and right adjustment, and at the same time, by using the slider method, the horizontal and vertical sliding is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention;

[0022] Figure 2 is a schematic structural diagram of the clamping mechanism of the present invention;

[0023] Figure 3 is a partial structural schematic diagram of the clamping mechanism of the present invention;

[0024] Figure 4 is a schematic structural diagram when the clamping mechanism of the present invention is unfolded;

[0025] Figure 5 is a schematic structure of the lifting mechanism of the present invention Figure 1 ;

[0026] Figure 6 is a schematic structure of the lifting mechanism of the present invention Figure 2 ;

[0027] Figure 7 is a partial exploded schematic diagram of the lifting mechanism of the present invention;

[0028] Figure 8 is a schematic diagram of another embodiment of the present invention;

[0029] Reference Signs:

[0030] 1 - Clamping fixing seat; 10 - Buffer seat; 100 - Buffer shaft; 101 - Return spring;

[0031] 2 - Lifting mechanism; 20 - Lifting fixed plate; 200 - Longitudinal slider; 201 - Helical gear; 202 - Buffer slide rail; 203 - Buffer slider; 204 - Buffer fixed plate; 21 - Second cylinder; 22 - Servo motor; 220 - Differential; 23 - Lifting connecting plate;

[0032] 3 - Gripping mechanism; 30 - First cylinder; 300 - Piston rod; 31 - Cylinder connecting plate; 310 - Sliding shaft; 311 - Sliding connecting rod; 312 - Linear bearing for sliding shaft; 32 - Lifting screw; 33 - Gripping vertical shaft; 330 - Linear bearing for vertical shaft; 331 - Shaft clamp; 332 - Sliding support plate; 34 - Vertical shaft sliding plate; 340 - Short joint; 35 - Vertical shaft fixed plate; 350 - Long joint; 36 - Inner support plate; 37 - Cylinder support column; 370 - Cylinder fixed plate. Detailed implementation mode

[0033] The present invention will be further described below with reference to the accompanying drawings in specific embodiments:

[0034] As Figure 1 shown, an inner support type gripping device for a tire includes a gripping fixed seat 1. A lifting mechanism 2 and a gripping mechanism 3 are provided on the upper part of the gripping fixed seat 1. The gripping mechanism 3 includes a first cylinder 30 fixed to the gripping fixed seat 1. A cylinder connecting plate 31 is fixed on the piston rod 300 of the first cylinder 30. Three lifting screws 32 with a regular triangular cross - section distribution are fixed at the lower end of the cylinder connecting plate 31. A gripping vertical shaft 33 located at the center of the three lifting screws 32 is fixed at the bottom of the gripping fixed seat 1. The gripping vertical shaft 33 is parallel to the lifting screws 32. A plurality of vertical shaft sliding plates 34 are slidably arranged on the gripping vertical shaft 33. The three lifting screws 32 are fixed to each vertical shaft sliding plate 34. A plurality of short joints 340 are evenly distributed on each vertical shaft sliding plate 34 by means of hinge. A vertical shaft fixed plate 35 fixed to the gripping vertical shaft 33 is provided below each vertical shaft sliding plate 34. A plurality of long joints 350 corresponding to the short joints 340 up and down are evenly distributed on the vertical shaft fixed plate 35 by means of hinge. The end of each short joint 340 and the end of each long joint 350 are both hinged to the same inner support plate 36, and the hinged end of the short joint 340 and the inner support plate 36 is above the hinged end of the long joint 350 and the inner support plate 36. When the first cylinder 30 drives the piston rod 300 to move downward, the lifting screws 32 and the vertical shaft sliding plates 34 move downward, and the inner support plate 36 expands outward along with the short joints 340 and the long joints 350.

[0035] As Figures 1 - 4As shown, the clamping mechanism 3 specifically implements the clamping operation of the tire in the following manner: the inner support plate 36 extends into the inner ring of the entire tire, and the first cylinder 30 drives the piston rod 300 to move downward. At this time, the connected cylinder connecting plate 31 moves downward, pushing the clamping sliding shaft 310 to move downward, and then also driving the lifting screw 32 downward. Because the vertical axis sliding plate 34 is fixedly connected to the lifting screw 32, the fixed connection principle is that the thread on the screw and the vertical axis sliding plate 34 want to be locked, so the vertical axis sliding plate 34 moves downward. During the movement, while the inner end of the short joint 340 bends downward, the outer end of the short joint 340 will expand outward to maintain the balance of force; and because the distance between the vertical axis sliding plate 34 and the vertical axis fixed plate 35 becomes shorter, the outer end of the long joint 350 also expands outward, so that the hinged inner support plate 36 expands outward, and under the action of multiple vertical axis sliding plates and multiple vertical axis fixed plates, the inner support plate 36 is more stably expanded.

[0036] It is worth mentioning that, according to the principle of three-point circle determination, the three lifting screws 32 can firmly open the tire and stably clamp it while ensuring that the tire does not deform as much as possible.

[0037] Preferably, a vertical axis linear bearing 330 is slidably disposed on the clamping vertical axis 33, and the inner wall of the vertical axis sliding plate 34 abuts against the outer wall of the vertical axis linear bearing 330. Since the clamping vertical axis 33 will rub back and forth with the vertical axis sliding plate, the vertical axis linear bearing 330 can effectively reduce the friction between the two, ensure smooth sliding, and extend the service life.

[0038] Preferably, a plurality of cylinder support columns 37 are fixed on the clamping fixing seat 1, and a cylinder fixing plate 370 for fixing the first cylinder 30 is provided at the top of the cylinder support column 37, and the piston rod 300 of the first cylinder 30 passes through the cylinder fixing plate 370, and the cylinder connecting plate 31 is fixed at the bottom of the piston rod 300, and three sliding shafts 310 with a regular triangle cross-section are fixed at the lower end of the cylinder connecting plate 31, and the sliding shaft 310 passes through the clamping fixing seat 1, and the bottom of the sliding shaft 310 is fixedly connected to the lifting screw 32 through a sliding connecting rod 311.

[0039] Preferably, a sliding shaft linear bearing 312 is provided between the sliding shaft 310 and the clamping fixing seat 1 .

[0040] Similarly, in the above-mentioned embodiment, the thread of the lifting screw 32 must not generate excessive friction with the clamping and fixing seat 1 to avoid thread slippage and damage, so a sliding shaft 310 is used as a replacement, and a sliding shaft linear bearing 312 is also provided at the connection of the clamping and fixing seat 1 to reduce friction.

[0041] In the above structure, the upper end of the sliding connecting rod 311 is plugged into the sliding shaft 311, and the lower end thereof is screwed into the top of the lifting screw.

[0042] Preferably, the upper end of the outer wall of the vertical axis linear bearing 330 is provided with an axis clamp 331, and the lower end of the outer wall of the vertical axis linear bearing 330 is provided with a sliding support plate 332. The purpose of the axis clamp 331 and the sliding support plate 332 is to effectively limit the up and down travel distance of the vertical axis sliding plate, and play a good role in limiting protection.

[0043] like Figures 5 - 7 As shown, preferably, the lifting mechanism includes a lifting and fixing plate 20 arranged on one side of the clamping and fixing seat 1, the lifting and fixing plate 20 is arranged on one side of the clamping and fixing seat 1 by means of a transverse slide rail, one side of the lifting and fixing plate 20 is provided with a second cylinder 21 for driving the clamping and fixing seat 1 to slide transversely, one side of the lifting and fixing plate 20 is fixed with a plurality of longitudinal sliding blocks 200 for longitudinal sliding and a bevel gear 201 for longitudinal sliding, a servo motor 22 is arranged on the lifting and fixing plate 20, and the bevel gear 201 is transmission-connected to the servo motor 22 through a differential 220.

[0044] In realizing the lifting function, the servo motor 22 is used to drive the differential 220 to drive the rotation of the bevel gear 201. A screw rod matched with the bevel gear 201 is set in the frame where the device is placed. At the same time, a slide rail matched with the longitudinal slider 200 is provided, so that the servo motor can drive the entire device to move up and down.

[0045] In realizing the function of left-right translation, the second cylinder 21 is pushed so that the clamping fixing seat 1 and the lifting fixing plate 20 can move horizontally through the horizontal slide rail.

[0046] Preferably, a lifting connection plate 23 is fixed to one side of the lifting fixing plate 20 , the second cylinder 21 is transversely fixed to the lifting connection plate 23 , and the end of the second cylinder 21 is fixedly connected to the clamping fixing seat 1 .

[0047] Preferably, a buffer rail 202 is laterally arranged on the lifting and fixing plate 20, a buffer slide rail 202 is adapted to be provided with a buffer slider 203, a buffer fixing plate 204 is fixed on the buffer slider 203, the end of the second cylinder 21 is fixed on the buffer fixing plate 204, a buffer seat 10 is fixed on the facing surfaces of the clamping fixing seat 1 and the lifting and fixing plate 20, a buffer shaft 100 is passed through the buffer seat 10, one end of the buffer shaft 100 is fixedly connected to the buffer fixing plate 204, and a reset spring 101 is sleeved on the buffer shaft 100 located between the buffer fixing plate 204 and the buffer seat 10.

[0048] In the above structure, the buffering function not only protects each component, but also plays a certain reset role, facilitating further changes in the clamping position.

[0049] Preferably, the second cylinder 21 is a double-axis cylinder. During the output process, the double-cylinder cylinder has stronger power support and is more stable.

[0050] Preferably, the clamping and fixing seat 1 has an L-shaped structure. The L-shaped clamping and fixing seat 1 includes a vertical plate and a horizontal plate. The vertical plate is for the lifting mechanism, and the horizontal plate is for the clamping mechanism.

[0051] As Figure 8 shown, in this embodiment, the inner support plate 36 is only composed of a small number of vertical shaft sliding plates and vertical shaft fixing plates, and the longitudinal length of the inner support plate 36 is relatively short. In actual assembly, the more the combination number of the vertical shaft sliding plates and the vertical shaft fixing plates is set, the longer the length that the inner support plate 36 can be set.

[0052] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An inner support type clamping device for a tire, characterized in that, The invention comprises a clamping fixed seat (1), a lifting mechanism (2) and a clamping mechanism (3) are arranged on the clamping fixed seat (1), the clamping mechanism (3) comprises a first cylinder (30) fixed on the clamping fixed seat (1), a cylinder connecting plate (31) is fixed on the piston rod (300) of the first cylinder (30), three lifting screws (32) with cross-sections in the shape of a regular triangle are fixed at the lower end of the cylinder connecting plate (31), a clamping vertical shaft (33) located at the center of the three lifting screws (32) is fixed at the bottom of the clamping fixed seat (1), the clamping vertical shaft (33) is parallel to the lifting screws (32), a plurality of vertical shaft sliding plates (34) are slidably arranged on the clamping vertical shaft (33), and the three lifting screws (32) are fixed to each vertical shaft sliding plate ( 34), a plurality of short joints (340) are evenly distributed on the vertical axis sliding plate (34) by means of hinge connection, a vertical axis fixing plate (35) fixed on the clamping vertical axis (33) is arranged below each of the vertical axis sliding plates (34), long joints (350) corresponding to the upper and lower parts of the short joints (340) are evenly distributed on the vertical axis fixing plate (35) by means of hinge connection, the end of each short joint (340) and the end of the long joint (350) are hinged on the same inner support plate (36), and the hinged end of the short joint (340) and the inner support plate (36) is located above the hinged end of the long joint (350) and the inner support plate (36), when the first cylinder (30) drives the piston rod (300) downward, the lifting screw (32) and the vertical axis sliding plate (34) are lifted and lowered, and the lifting screw (32) and the vertical axis sliding plate (34) are lifted and lowered. The plate (34) moves downward, and the inner support plate (36) expands outward along with the short joint (340) and the long joint (350). A plurality of cylinder support columns (37) are fixed on the clamping fixed seat (1). The top of the cylinder support column (37) is provided with a cylinder fixing plate (370) for fixing the first cylinder (30). The piston rod (300) of the first cylinder (30) passes through the cylinder fixing plate (370), and the cylinder connecting plate (31) is fixed at the bottom of the piston rod (300). The lower end of the cylinder connecting plate (31) is fixed with three sliding shafts (310) with a regular triangle cross section. The sliding shafts (310) pass through the clamping fixed seat (1), and the bottom of the sliding shafts (310) is connected to the lifting screw through a sliding connecting rod (311). The lifting mechanism comprises a lifting fixed plate (20) arranged on one side of the clamping fixed seat (1); the lifting fixed plate (20) is arranged on one side of the clamping fixed seat (1) by sliding a transverse slide rail; a second cylinder (21) for driving the clamping fixed seat (1) to slide transversely is arranged on one side of the lifting fixed plate (20); a plurality of longitudinal sliding blocks (200) for longitudinal sliding and a bevel gear (201) for longitudinal sliding are fixed on one side of the lifting fixed plate (20); a servo motor (22) is arranged on the lifting fixed plate (20); the bevel gear (201) is connected to the servo motor (22) by transmission through a differential (220); a buffer slide rail (202) is arranged transversely on the lifting fixed plate (20);A buffer slider (203) is adapted on the buffer slide rail (202), and a buffer fixing plate (204) is fixed on the buffer slider (203). The end of the second cylinder (21) is fixed on the buffer fixing plate (204). A buffer seat (10) is fixed on the facing surfaces of the clamping fixing seat (1) and the lifting fixing plate (20). A buffer shaft (100) is inserted into the buffer seat (10). One end of the buffer shaft (100) is fixedly connected to the buffer fixing plate (204), and a return spring (101) is sleeved on the buffer shaft (100) between the buffer fixing plate (204) and the buffer seat (10).

2. The inner support type clamping device for a tire according to claim 1, characterized in that, A vertical shaft linear bearing (330) is slidably provided on the clamping vertical shaft (33), and the inner wall of the vertical shaft sliding plate (34) abuts against the outer wall of the vertical shaft linear bearing (330).

3. The inner support type clamping device for a tire according to claim 1, characterized in that, A sliding shaft linear bearing (312) is provided between the sliding shaft (310) and the clamping fixed seat (1).

4. The inner support type clamping device for a tire according to claim 2, characterized in that, A shaft clamp (331) is provided at the upper end of the outer wall of the vertical shaft linear bearing (330), and a sliding support plate (332) is provided at the lower end of the outer wall of the vertical shaft linear bearing (330).

5. The inner support type clamping device for a tire according to claim 1, characterized in that, A lifting connection plate (23) is fixed to one side of the lifting fixed plate (20), the second cylinder (21) is horizontally fixed on the lifting connection plate (23), and the end of the second cylinder (21) is fixedly connected to the clamping fixed seat (1).

6. The inner support type clamping device for a tire according to claim 1, characterized in that, The second cylinder (21) is a double-shaft cylinder.

7. The inner support type clamping device for a tire according to claim 1, characterized in that, The clamping fixed seat (1) has an L-shaped structure.

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