Clamping adjusting device

Abstract

A clamping adjusting device comprises a machine base. The first adjusting and clamping mechanism is arranged on one side of the machine base and comprises a first sliding block guide rail assembly, a first limiting piece, a second limiting piece and a first clamping part, the first limiting piece and the second limiting piece are distributed at the two ends of the first sliding block guide rail assembly, and the first clamping part is connected to the first sliding block guide rail assembly; the second adjusting and clamping mechanism is arranged on the other side of the machine base and comprises a second sliding block guide rail assembly, a third limiting piece, a fourth limiting piece and a second clamping part, the third limiting piece and the fourth limiting piece are distributed at the two ends of the second sliding block guide rail assembly, and the second clamping part is connected to the second sliding block guide rail assembly; and the driving mechanism is connected between the first clamping part and the second clamping part and used for controlling the first clamping part to move between the first limiting piece and the second limiting piece and controlling the second clamping part to move in the third limiting piece and the fourth limiting piece. The clamping device is simple in structure and low in manufacturing cost, large-size materials on a conveying line can be clamped, positioned in the middle and positioned on the two sides, and the clamping opening and closing range can be adjusted at will.

Description

TECHNICAL FIELD

[0001] The utility model relates to material clamping technical field, especially a clamping adjusting device. BACKGROUND

[0002] In many automated production and processing processes, accurate positioning of materials is the key to ensure the smooth progress of subsequent operations. Especially on high-precision, high-speed production lines, the stability and accurate positioning of materials directly affect production efficiency, product quality and the normal operation of equipment. However, due to the variety of materials and different shapes, it is often difficult to maintain a stable position during material transmission. Especially in a more complex automated production environment, how to quickly and accurately position the material to the predetermined position is a problem to be solved.

[0003] Traditional clamping devices are usually composed of multiple components, such as clamping jaws, support frames, pneumatic or electric drive devices, multiple adjustment mechanisms, etc. These components need to be precisely matched to achieve clamping and positioning functions. However, such clamping devices have the following defects: (1) They contain multiple moving parts, which are complex to design, operate and maintain, for example, adjustment of clamping jaws, adjustment of pneumatic cylinders, etc. Multiple pneumatic cylinders need to be designed, resulting in complex structure, high manufacturing cost and cumbersome operation. Moreover, multiple components can cause more failure points, and when the equipment malfunctions, the workload of repairing and replacing components is large; (2) The existing material centering positioning method mostly uses pneumatic cylinders to push the material to the center for positioning, which has poor positioning accuracy and cannot be applied to materials of different sizes, with poor adaptability. SUMMARY

[0004] The utility model aims at overcoming the above-mentioned deficiencies of prior art and providing a clamping adjusting device with simple structure, low manufacturing cost, high positioning accuracy and adjustable clamping opening and closing range, which can realize clamping, centering positioning and two-side positioning of large-size materials on a conveying line.

[0005] The technical scheme of the utility model is: a clamping adjusting device, comprising:

[0006] a machine base;

[0007] a first adjusting and clamping mechanism arranged on one side of the machine base, comprising a first sliding block guide rail assembly, first and second limit pieces distributed at both ends of the first sliding block guide rail assembly, and a first clamping part connected to the first sliding block guide rail assembly;

[0008] a second adjusting and clamping mechanism arranged on the other side of the machine base, comprising a second sliding block guide rail assembly, third and fourth limit pieces distributed at both ends of the second sliding block guide rail assembly, and a second clamping part connected to the second sliding block guide rail assembly;

[0009] The driving mechanism is connected between the first clamping part and the second clamping part, and is used to control the first clamping part to move between the first limiter and the second limiter, and to control the second clamping part to move within the third limiter and the fourth limiter.

[0010] Furthermore, the first and second limiting members are fixed to one side of the base via a connection method with adjustable spacing; and the third and fourth limiting members are fixed to the other side of the base via a connection method with adjustable spacing.

[0011] Furthermore, the first clamping part and the second clamping part have the same structure, both including a front end plate, a rear baffle and a side plate connected therebetween; the height of the rear baffle is greater than that of the front end plate, the rear baffle is used to clamp the conveyed material, and the front end plate is used to connect the driving mechanism.

[0012] Furthermore, a screw rod is provided between the first clamping part and the second clamping part, the working end of the driving mechanism is connected to one end of the screw rod, and the fixed end of the driving mechanism and the other end of the screw rod are respectively connected to the front end plates of the two clamping parts; a hole for passing the screw rod is provided on the front end plate connected to the screw rod, and the screw rod is limited by a limit nut after passing through the hole; the distance between the first clamping part and the second clamping part is adjusted by the position of the limit nut on the screw rod.

[0013] Furthermore, the driving mechanism is a driving cylinder, the piston end of the driving cylinder is connected to one end of the screw rod; the driving cylinder is an air cylinder, an oil cylinder or an electric cylinder; a floating joint is also provided between the screw rod and the piston end of the driving cylinder.

[0014] Furthermore, the first slider guide rail assembly includes a linear guide rail arranged on the machine base and a slider capable of sliding along the linear guide rail; the slider is arranged between the first limiting portion and the second limiting portion; the first clamping portion moves on the linear guide rail through the slider; the structure of the second slider guide rail assembly is the same as that of the first slider guide rail assembly.

[0015] Furthermore, the first limit member and the second limit member each include two limit blocks, which are distributed on both sides of the linear guide rail; a plurality of threaded holes are provided on the machine base along the adjustable path of the first limit member and / or the second limit member, and the locking bolts pass through the connecting holes on the limit blocks and are fixedly connected to the threaded holes of the machine base; the distance between the first limit member and the second limit member is adjusted by corresponding the connecting holes of the limit blocks to different threaded holes on the machine base; the spacing adjustment structure of the third limit member and the fourth limit member is the same as that of the first limit member and the second limit member.

[0016] Furthermore, the connection hole on the limit block is a long slotted hole, and the slotted hole is connected to at least two threaded holes on the machine base; at least two locking bolts pass through the slotted hole and are locked in the threaded holes of the machine base.

[0017] Furthermore, the first to fourth limit members are used to enable the first clamping part and the second clamping part to move the farthest distance when the distance between the first limit member and the second limit member plus the distance between the third limit member and the fourth limit member is equal to the maximum stroke of the driving mechanism; they are also used to enable the material between the first clamping part and the second clamping part to be pushed to the center position to complete the center positioning when the distance between the first limit member and the second limit member is equal to the distance between the third limit member and the fourth limit member and they are centered and symmetrical; and they are also used to enable the material between the first clamping part and the second clamping part to be pushed to the eccentric side to complete the eccentric positioning when the distance between the first limit member and the second limit member is equal to the distance between the third limit member and the fourth limit member and they are eccentrically arranged.

[0018] Furthermore, the screw rod is used to adjust the distance between the two clamping parts by adjusting the position of the limit nut on the screw rod when the distance between the first limit member and the second limit member plus the distance between the third limit member and the fourth limit member is less than the maximum stroke of the driving mechanism to adapt to materials of different sizes.

[0019] Beneficial effects of the utility model:

[0020] (1) By arranging the clamping part between two adjacent limiting parts and adjusting the distance between the limiting parts, various requirements such as centering and eccentric positioning of the material can be achieved; further adding a screw rod and a limiting nut can achieve the clamping and positioning of materials of different sizes;

[0021] (2) The clamping part does not need to be set as a clamping claw structure, and only one driving cylinder is required. The overall structure is simple, the manufacturing cost is low, and it is easy to operate and maintain. It can realize the clamping, centering and two-side positioning of large-sized materials on the conveyor line, and the clamping opening and closing range can be adjusted arbitrarily, with high positioning accuracy. When the material needs to be centered, it can effectively solve the eccentricity problem in the material conveying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the clamping device according to an embodiment of the present utility model;

[0023] Figure 2 yes Figure 1 a top view of the illustrated embodiment;

[0024] Figure 3 yes Figure 1 a side view of the illustrated embodiment;

[0025] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the embodiment shown;

[0026] Figure 5 yes Figure 4A schematic diagram of the specific structure of the first slider and guide rail assembly of the illustrated embodiment;

[0027] Figure 6 yes Figure 4 An enlarged structural diagram of the first adjusting and clamping mechanism of the illustrated embodiment;

[0028] Figure 7 yes Figure 4 An enlarged structural diagram of the second adjustment clamping mechanism of the illustrated embodiment.

[0029] Description of reference numerals:

[0030] 1. Machine base; 2. First adjustment clamping mechanism; 3. Second adjustment clamping mechanism; 4. Driving cylinder; 5. Screw; 6. Limit nut; 7. Floating joint;

[0031] 11. Threaded hole; 21. First slider guide rail assembly; 22. First stopper; 23. Second stopper; 24. First clamping portion; 31. Second slider guide rail assembly; 32. Third stopper; 33. Fourth stopper; 34. Second clamping portion;

[0032] 211. Linear guide rail; 212. Slider; 221. Limit block; 222. Locking bolt; 223. Slot hole; 241. Front end plate; 242. Rear baffle; 243. Side plate. DETAILED DESCRIPTION

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

[0034] like Figures 1-7 As shown: A clamping and adjusting device includes a machine base 1 and a first adjusting clamping mechanism 2 and a second adjusting clamping mechanism 3 respectively arranged on both sides of the machine base 1, and a driving cylinder 4 and a screw rod 5 are connected between the first adjusting clamping mechanism 2 and the second adjusting clamping mechanism 3.

[0035] Specifically, the first adjusting clamping mechanism 2 comprises a first sliding block guide rail assembly 21, first and second limiters 22 and 23 distributed at two ends of the first sliding block guide rail assembly, and a first clamping part 24 fixed on the first sliding block guide rail assembly. The first and second limiters 22 and 23 are connected to the base 1 in a distance-adjustable manner. The second adjusting clamping mechanism 3 comprises a second sliding block guide rail assembly 31, third and fourth limiters 32 and 33 distributed at two ends of the second sliding block guide rail assembly, and a second clamping part 34 connected to the second sliding block guide rail assembly. The first and second sliding block guide rail assemblies 21 and 31 have the same structure, the four limiters have the same structure, and the first and second clamping parts 24 and 34 have the same structure. Therefore, only the first adjusting clamping mechanism 2 is described in detail, and the second adjusting clamping mechanism has the same structure as the first adjusting clamping mechanism.

[0036] In the embodiment, the first sliding block guide rail assembly 21 comprises a linear guide rail 211 and a sliding block 212 slidable along the linear guide rail, and the first clamping part 24 moves on the linear guide rail 211 through the sliding block. The linear guide rail 211 is connected to the base 1. The first limiter 22 is arranged at one end of the linear guide rail 211, and the second limiter 23 is arranged at the other end of the linear guide rail 211. The first and second limiters 22 and 23 have the same structure and each comprises two limit blocks 221 distributed at two sides of the end of the linear guide rail 211 and connected to the base 1. In the embodiment, the connection refers to connecting one structural part to another structural part in a certain connection manner to ensure firm combination and prevent loosening or falling off during use. The connection manner can be screw connection, buckle connection, etc., and preferably detachable connection. Preferably, the linear guide rail and the limiters in the embodiment are connected to the base by bolts.

[0037] In the embodiment, the distance between the first and second limiters 22 and 23 is adjustable. One preferred adjusting structure is that the first and second limiters 22 and 23 have the same structure and each comprises two limit blocks 221 distributed at two sides of the linear guide rail 211. The base 1 is provided with a plurality of threaded holes 11 along the adjustable path of each limit block 221, for example, six threaded holes 11 corresponding to each limit block 221. A locking bolt 222 is fixedly connected to the threaded hole 11 of the base 1 through the connecting hole of the limit block 221. The distance between the first and second limiters 22 and 23 is adjusted by corresponding the connecting hole of the limit block 221 to the different threaded holes of the base 1.

[0038] The connection holes on the limit block 221 are elongated slots 223. The limit block 221 is a rectangular parallelepiped structure, and the slots 223 extend along the length of the limit block 221, forming an elongated strip. Each slot 223 is equipped with two locking bolts 222, which correspond to two adjacent threaded holes 11 on the base 1. The locking bolts 222 pass through the slots 223 and lock into the threaded holes 11 in the base 1. When the position of the first limit member 22 needs to be adjusted, the locking bolt 222 used to fix the limit block 221 is first loosened to allow the limit block 221 to move freely. After the locking bolt 222 is loosened, the limit block 221 moves the target distance toward the desired path, so that the slot 223 of the limit block 221 is connected to the two adjacent threaded holes 11 of the next group. After the rear position is determined, the locking bolt 222 is tightened again to fix the limit block 221 in the new target position. The distance adjustment of the second limit member 23 is similar to that of the first limit member 22 and will not be described in detail here. By adjusting the relative distance between the first limit member 22 and the second limit member 23 in this way, the movement distance of the first clamping portion 24 under different working conditions is limited. The adjustment method of the third limit member 32 and the fourth limit member 33 is similar to that of the first limit member 22 and the second limit member 23 and will not be described in detail here.

[0039] Another preferred adjustment structure for the first and second stoppers 22, 23 is as follows: the first stopper is non-adjustable, while the second stopper is adjustable. Specifically, six threaded holes 11 are provided on the base 1 along the adjustable path of each stopper block of the second stopper 23, while two threaded holes 11 are provided at each stopper block of the first stopper 22. This allows each stopper block of the first stopper to be secured by two locking bolts, while each stopper block of the second stopper can be adjusted along the six threaded holes 11.

[0040] In this embodiment, the first clamping portion 24 and the second clamping portion 34 are both locked to the corresponding slider 212, also using bolts. The first and second clamping portions 24 and 34 have identical structures, each comprising a front plate 241, a rear plate 242, and two side plates 243 connected therebetween. The rear plate 242 is taller than the front plate 241. The rear plates 242 of the two clamping portions clamp the conveyed material and, during this process, push the material to the target location. The rear plates 242 are designed to be taller so that the material can be clamped by them when conveyed to the clamping portion.

[0041] In this embodiment, the piston end of the driving cylinder 4 is connected to one end of the screw rod 5, the fixed end of the driving cylinder 4 and the other end of the screw rod 5 are respectively connected to the two clamping parts. The driving cylinder 4 is used to control the moving distance between the two clamping parts; the other end of the screw rod 5 is connected to one clamping part through the limiting nut 6, and the moving distance of the two clamping parts is adjusted through the position of the limiting nut 6 on the screw rod 5, so as to be suitable for different sizes of materials.

[0042] Preferably, the fixed end of the driving cylinder 4 is locked on the front end plate 241 of the first clamping part 24, the piston end of the driving cylinder 4 is connected to one end of the screw rod 5, and the other end of the screw rod 5 passes through the front end plate of the second clamping part 34 and is adjustably fixed through the limiting nut 6. For example, the fixed end of the driving cylinder 4 is fixed on the front end plate 241 of the first clamping part 24 through four bolts, and the piston end of the driving cylinder 4 is connected to the screw rod 5 through a shaft; wherein the middle part of the front end plate is provided with a circular hole for passing through the screw rod 5, and the screw rod 5 is limited through at least two limiting nuts 6 after passing through the circular hole. In order to ensure the stability and positioning accuracy of the screw rod 5, 4-6 limiting nuts 6 are preferably arranged in this embodiment, which are respectively arranged on both sides of the circular hole of the front end plate of the second clamping part 34 and are screwed on the screw rod 5, for example, 2-3 limiting nuts 6 are arranged on the front of the front end plate 241, and 2-3 limiting nuts 6 are also arranged on the back, so as to fix the screw rod 5. By arranging the limiting nut 6, the moving distance between the left and right second clamping parts 34 can be further adjusted by adjusting the position of the second clamping part 34.

[0043] In this embodiment, a floating joint 7 is further arranged between the screw rod 5 and the piston end of the driving cylinder 4, so as to reduce the assembly accuracy and machining size requirement. That is, since there may be a small error in the connection position of the screw rod 5 and the driving cylinder 4, the floating joint 7 can compensate for these errors, and the floating joint 7 can provide a certain degree of freedom, so that the screw rod 5 and the piston end of the driving cylinder 4 can work normally even if they are not centered or slightly deviated. For example, the piston end of the driving cylinder 4 and the screw rod 5 are connected into one body by using a floating coupling in this embodiment.

[0044] The working principle of this embodiment is as follows:

[0045] The entire clamping device can be installed on a conveyor line to correct the eccentricity of the conveyed material. For example, in this embodiment, the clamping device is installed on a roller conveyor line. During installation, it is necessary to ensure that the two rear baffles can clamp the material during transportation. For example, the installation height of the clamping device's base 1, drive cylinder 4, and screw 5 can be made smaller than the height of the rollers, so that when the material is transported between the two rear baffles, there is a gap between the components of the drive cylinder 4. Preferably, space is reserved on the conveyor line for installing the clamping device, so that rollers are provided on both sides of the clamping device, and the base 1, drive cylinder 4, and screw 5 are located below the rollers. The material is transported from the roller on one side of the clamping device to between the two rear baffles, positioned by the rear baffle 242, and then discharged from the roller on the other side of the clamping device.

[0046] The distance between the first limiting member 22 and the second limiting member 23 is adjustable, and the distance between the third limiting member 32 and the fourth limiting member 33 is adjustable. When the distance between the first limiting member 22 and the second limiting member 23 plus the distance between the third limiting member 32 and the fourth limiting member 33 is equal to the maximum stroke of the driving cylinder 4, the movement distance of the first clamping part 24 and the second clamping part 34 is the farthest; when the distance between the first limiting member 22 and the second limiting member 23 is equal to the distance between the third limiting member 32 and the fourth limiting member 33 and they are centered and symmetrical, the material between the clamping parts will be pushed to the center position to complete the center positioning; when the distance between the first limiting member 22 and the second limiting member 23 is equal to the distance between the third limiting member 32 and the fourth limiting member 33, the material between the clamping parts will be pushed to the center position to complete the center positioning; When the distance between the first and second limiting members 22 and 23 plus the distance between the third and fourth limiting members 32 and 33 is less than the maximum stroke of the drive cylinder 4, the position of the second clamping member 34 can be adjusted by adjusting the position of the limiting nut 6 on the screw rod 5, thereby changing the travel distance between the two clamping members to accommodate materials of different sizes. Furthermore, the length of the material is less than the minimum distance between the two rear baffles 242, so that when adjusting the position of the material, it can be adjusted within the controllable range of the clamping device.

[0047] In this embodiment, the distance between the two clamping parts is adjusted according to whether the material needs to be centered or eccentric. For example, when the material is centered, the distance between the four limiters is first adjusted so that the distance between the first limiter 22 and the second limiter 23 is equal to the distance between the third limiter 32 and the fourth limiter 33 and they are centered and symmetrical, that is, the distance between the second limiter 23 and the third limiter 32 and the center position is the same, and the distance between the first limiter 22 and the fourth limiter 33 and the center position is the same. The distance between the first stopper 22 and the second stopper 23 defines the range of motion of the first clamping portion 24. The third and fourth stoppers 32 and 33 limit the range of motion of the second clamping portion 34. When the first clamping portion 24 moves toward the second stopper 23 until it is stopped by the second stopper 23, and the second clamping portion 34 moves toward the third stopper 32 until it is stopped by the third stopper 32, the relative motion of the first and second clamping portions 24 and 34 gradually pushes the material toward the center, achieving centering. For example, after the material is conveyed between the clamping portions, the material pauses, and the control drive cylinder 4 retracts. After the second clamping portion 34 moves toward the third stopper 32 and is stopped by the third stopper 32, the first clamping portion 24 resumes its motion, moving toward the first stopper 22 until it is stopped by the first stopper 22, thereby pushing the material to the center. It can be said that this embodiment is symmetrical in the center by setting the limit members on the left and right sides, so the clamping part will also push the material to be centered under the restriction of the limit members. Therefore, the contraction or expansion of the clamping part is controlled by the driving cylinder 4, and the two clamping parts are guided by the limit members, so that no matter how eccentric the material is, it can be automatically centered when clamping. The function of the driving cylinder 4 is to drive the clamping part to move within the range of the limit member and guide the material to the center position, thereby realizing the precise positioning of the material.

[0048] Furthermore, the term "connection" should be interpreted broadly. For example, it can include fixed connection, detachable connection, or integral connection; it can include direct connection, indirect connection through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0050] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A clamping and adjusting device, characterized in that: include: base; The first adjusting and clamping mechanism is provided on one side of the machine base, and includes a first slider guide rail assembly, a first limiting member and a second limiting member distributed at both ends of the first slider guide rail assembly, and a first clamping portion connected to the first slider guide rail assembly; The second adjusting clamping mechanism is provided on the other side of the machine base, and includes a second slider guide rail assembly, a third limiter and a fourth limiter distributed at both ends of the second slider guide rail assembly, and a second clamping portion connected to the second slider guide rail assembly; The driving mechanism is connected between the first clamping part and the second clamping part, and is used to control the first clamping part to move between the first limiter and the second limiter, and to control the second clamping part to move within the third limiter and the fourth limiter.

2. The clamping and adjusting device according to claim 1, characterized in that: The first and second limiting members are fixed to one side of the base through a connection method with adjustable spacing; and the third and fourth limiting members are fixed to the other side of the base through a connection method with adjustable spacing.

3. The clamping and adjusting device according to claim 1, characterized in that: The first clamping part and the second clamping part have the same structure, both including a front end plate, a rear baffle and a side plate connected therebetween; the height of the rear baffle is greater than that of the front end plate, the rear baffle is used to clamp the conveyed material, and the front end plate is used to connect the driving mechanism.

4. The clamping and adjusting device according to claim 3, characterized in that: A screw rod is also provided between the first clamping part and the second clamping part, the working end of the driving mechanism is connected to one end of the screw rod, and the fixed end of the driving mechanism and the other end of the screw rod are respectively connected to the front end plates of the two clamping parts; a hole for passing the screw rod is provided on the front end plate connected to the screw rod, and the screw rod is limited by a limit nut after passing through the hole; the distance between the first clamping part and the second clamping part is adjusted by the position of the limit nut on the screw rod.

5. The clamping and adjusting device according to claim 4, characterized in that: The driving mechanism is a driving cylinder, the piston end of which is connected to one end of a screw rod; the driving cylinder is an air cylinder, an oil cylinder or an electric cylinder; a floating joint is further provided between the screw rod and the piston end of the driving cylinder.

6. The clamping and adjusting device according to any one of claims 1 to 5, characterized in that: The first slider guide rail assembly includes a linear guide rail arranged on the machine base and a slider capable of sliding along the linear guide rail; the slider is arranged between the first limiting portion and the second limiting portion; the first clamping portion moves on the linear guide rail through the slider; the structure of the second slider guide rail assembly is the same as that of the first slider guide rail assembly.

7. The clamping and adjusting device according to claim 6, characterized in that: The first limit member and the second limit member each include two limit blocks, which are distributed on both sides of the linear guide rail; a plurality of threaded holes are provided on the machine base along the adjustable path of the first limit member and / or the second limit member, and the locking bolts pass through the connecting holes on the limit blocks and are fixedly connected to the threaded holes of the machine base; the distance between the first limit member and the second limit member is adjusted by corresponding the connecting holes of the limit blocks to different threaded holes on the machine base; the spacing adjustment structure of the third limit member and the fourth limit member is the same as that of the first limit member and the second limit member.

8. The clamping and adjusting device according to claim 7, characterized in that: The connection hole on the limit block is a long slotted hole, and the slotted hole is connected to at least two threaded holes on the machine base; at least two locking bolts pass through the slotted hole and are locked in the threaded holes of the machine base.

9. The clamping and adjusting device according to any one of claims 1 to 5, characterized in that: The first to fourth limit members are used to enable the first clamping part and the second clamping part to move the farthest distance when the distance between the first limit member and the second limit member plus the distance between the third limit member and the fourth limit member is equal to the maximum stroke of the driving mechanism; they are also used to push the material between the first clamping part and the second clamping part to the central position to complete the central positioning when the distance between the first limit member and the second limit member is equal to the distance between the third limit member and the fourth limit member and they are centered and symmetrical; and they are also used to push the material between the first clamping part and the second clamping part to the eccentric side to complete the eccentric positioning when the distance between the first limit member and the second limit member is equal to the distance between the third limit member and the fourth limit member and they are eccentrically arranged.

10. The clamping and adjusting device according to claim 4 or 5, characterized in that: The screw rod is used to adjust the distance between the two clamping parts by adjusting the position of the limit nut on the screw rod when the distance between the first limit member and the second limit member plus the distance between the third limit member and the fourth limit member is less than the maximum stroke of the driving mechanism to adapt to materials of different sizes.

Images