Steel bar clamping device and clamping method

Abstract

The invention relates to the technical field of steel bar clamping, and discloses a steel bar clamping device and a clamping method.The steel bar clamping device comprises a clamping mechanism, a driving mechanism, a first guiding mechanism and a supporting mechanism; the clamping method comprises the steps that the driving air cylinder is used for pulling the distance between the first clamping block and the second clamping block, and the driving air cylinder is used for pulling the distance between the first clamping block and the second clamping block. By the adoption of the technical scheme, the steel bar clamping efficiency can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel bar clamping, and in particular to a steel bar clamping device and a clamping method. Background Art

[0002] At present, a steel bar clamping device is usually used to clamp the steel bar, so as to facilitate moving the steel bar to a pipe threading machine (an electric processing tool for pipe external threads) for external thread processing, so that the steel bar with external threads processed can be installed and used.

[0003] In the prior art, the utility model patent "A steel bar clamping and adjusting device for a threading machine" with the authorization announcement number CN217393970U discloses an adjusting seat, a slide rail, a clamping block, a clamping screw, and a rotating handle. By rotating the rotating handle, the two clamping blocks on the clamping screw can move relative to each other (for example, approach or depart) along the slide rail of the adjusting seat, thereby clamping or releasing the steel bar.

[0004] However, if there are multiple steel bars that need to be clamped, firstly, manually turning the rotating handle to achieve steel bar clamping is time-consuming and labor-intensive. Secondly, the reverse thread set on the surface of the clamping screw can make a pair of clamping blocks approach or move away, thereby clamping or releasing the steel bars. However, when there are multiple steel bars that need to be clamped, the multiple reciprocating movements between the clamping screw and the pair of clamping blocks will cause the external thread on the surface of the clamping screw to wear, which reduces the clamping accuracy of the steel bars (i.e., the clamping is not tight enough).

[0005] In summary, the existing steel bar clamping devices are time-consuming and labor-intensive to clamp, and have low clamping accuracy, that is, low clamping efficiency.

[0006] Therefore, there is an urgent need for a steel bar clamping device and a clamping method that can improve the clamping efficiency. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a steel bar clamping device and a clamping method. First, the driving cylinder can be used to realize automatic clamping, which makes the steel bar clamping save time and effort. Second, the connecting rod assembly can be used to realize tight clamping of the steel bar, which improves the clamping accuracy. In other words, the steel bar clamping efficiency is greatly improved.

[0008] Among them, the present invention provides a steel bar clamping device, characterized in that it comprises: a clamping mechanism for clamping steel bars, a driving mechanism fixedly connected to the clamping mechanism for driving the clamping mechanism, a first guide mechanism inserted in the clamping mechanism for guiding the clamping mechanism to move linearly, and a supporting mechanism; the supporting mechanism comprises a first supporting mechanism fixedly connected to the driving mechanism for supporting the driving mechanism, and a second supporting mechanism fixedly connected to the first supporting mechanism for supporting the clamping mechanism;

[0009] The clamping mechanism comprises a first clamping block for clamping the steel bar, a second clamping block for clamping the steel bar, and a connecting rod assembly arranged between the first clamping block and the second clamping block for pulling in or pulling out the distance between the first clamping block and the second clamping block.

[0010] The connecting rod assembly includes a first connecting block fixedly connected to the first clamping block, a first connecting rod hinged to the first connecting block, a second connecting rod hinged to the first connecting rod, a third connecting rod hinged to the second connecting rod, a second connecting block hinged to the third connecting rod, the second connecting block and the second clamping block are fixedly connected, a connecting shaft for transmitting thrust and arranged below the second connecting rod and hinged to the second connecting rod, and a bearing sleeve for reducing friction between the second connecting rod and the connecting shaft and absorbing vibration, and the connecting shaft is fixedly connected to the second supporting mechanism;

[0011] The driving mechanism includes a driving assembly fixedly connected to the first clamping block and used for driving the first clamping block to move. The driving assembly includes a driving cylinder, and the driving cylinder includes a driving rod.

[0012] The above-mentioned steel bar clamping device is characterized in that: the first guide mechanism includes a guide rod passing between the first clamping block and the second clamping block, a pair of mounting seats for mounting the guide rod and arranged on the outside of the first clamping block and the second clamping block and fixedly connected to the guide rod, the mounting seats include a first mounting seat arranged on the outside of the first clamping block, a second mounting seat arranged on the outside of the second clamping block, the first mounting seat is fixedly connected to the second support mechanism, and the second mounting seat is fixedly connected to the second support mechanism.

[0013] The above-mentioned steel bar clamping device is characterized in that: the first supporting mechanism includes a first supporting base fixedly arranged on one side of the driving cylinder, and the second supporting mechanism includes a second supporting base fixedly arranged below the first supporting base.

[0014] The above-mentioned steel bar clamping device is characterized in that it also includes a second guide mechanism arranged on the first connecting rod, the second connecting rod, and the third connecting rod for guiding the first connecting rod, the second connecting rod, and the third connecting rod to move in a horizontal direction, and the second guide mechanism includes a retaining spring.

[0015] The above-mentioned steel bar clamping device is characterized in that: the surfaces of the first clamping block and the second clamping block are both provided with jaws.

[0016] The present invention also provides a method for clamping steel bars using a steel bar clamping device, which is characterized by comprising:

[0017] Using a driving cylinder to close the distance between the first clamping block and the second clamping block, and using the driving cylinder to open the distance between the first clamping block and the second clamping block;

[0018] When the driving cylinder is used to pull the distance between the first clamping block and the second clamping block, the compressed air causes the air to enter the driving cylinder, and the driving cylinder drives the driving rod to push the first clamping block to move linearly in the direction of the second clamping block, and the first clamping block and the first connecting block move synchronously, the first connecting block pushes the first connecting rod, and the first connecting rod pulls the second connecting rod, and the connecting shaft arranged under the second connecting rod supports the second connecting rod and transmits the movement of the first connecting rod to the third connecting rod, and the bearing sleeve passing through the connecting shaft reduces the friction and vibration between the second connecting rod and the connecting shaft during the transmission movement, the second connecting rod pushes the third connecting rod, and the third connecting rod pulls the second connecting block, and the second connecting block and the second clamping block move linearly in the direction of the first clamping block synchronously under the action of the first guide mechanism;

[0019] When the driving cylinder is used to open the distance between the first clamping block and the second clamping block, the compressed air causes the air to enter the driving cylinder, and the driving cylinder drives the driving rod to pull the first clamping block to move linearly in a direction away from the second clamping block, and the first clamping block and the first connecting block move synchronously, the first connecting block pulls the first connecting rod, and the first connecting rod pushes the second connecting rod, the connecting shaft arranged under the second connecting rod supports the second connecting rod and transmits the movement of the first connecting rod to the third connecting rod, and the bearing sleeve passed through the connecting shaft reduces the friction and vibration between the second connecting rod and the connecting shaft during the transmission process, the second connecting rod pulls the third connecting rod, and the third connecting rod pushes the second connecting block, and the second connecting block and the second clamping block move synchronously in a linear direction away from the first clamping block under the action of the first guide mechanism.

[0020] The beneficial effect reasoning analysis is as follows:

[0021] In the prior art, if there are multiple steel bars that need to be clamped, firstly, manually turning the rotating handle to clamp the steel bars is time-consuming and labor-intensive. Secondly, the reverse thread provided on the surface of the clamping screw can make a pair of clamping blocks approach or move away, thereby clamping or releasing the steel bars. However, when there are multiple steel bars that need to be clamped, the multiple reciprocating motions between the clamping screw and the pair of clamping blocks will cause the external thread on the surface of the clamping screw to wear, that is, reduce the clamping accuracy of the steel bars.

[0022] In summary, the existing steel bar clamping devices are time-consuming and labor-intensive to clamp, and have low clamping accuracy, that is, low clamping efficiency.

[0023] In the technical solution provided by the present invention, firstly, the driving cylinder (specifically the driving rod) automatically pulls in or pulls out the distance between the first clamping block and the second clamping block, thereby saving the time and manpower required for clamping and releasing the steel bars. This avoids the time-consuming and labor-intensive situation in the prior art where there are multiple steel bars to be clamped and the steel bars are clamped and released manually.

[0024] Secondly, firstly, the connecting rods in the connecting rod assembly are hinged to each other, and the connecting shaft can realize the transmission of motion, so that the distance between the first clamping block and the second clamping block can be pulled in or pulled apart when the driving rod is driven (for example, shortened or extended). Secondly, since the bearing sleeve is inserted into the connecting shaft, the bearing sleeve can not only reduce the wear degree of the connecting shaft by reducing the contact area between the connecting shaft and the second connecting rod, but also reduce the vibration of the connecting shaft during the transmission process, so that when the distance between the first clamping block and the second clamping block is pulled in, the steel bar clamping accuracy is guaranteed (that is, the clamping is tighter). It avoids the situation in the prior art that the manual rotation of the rotating handle is required to drive the clamping screw to reciprocate multiple times, and then the external thread on the surface of the clamping screw is worn after the multiple reciprocating movements, resulting in low steel bar clamping accuracy (that is, the clamping force is weakened after the external thread is worn, or the clamping is loose).

[0025] It is precisely the setting of the driving cylinder and the connecting rod assembly that can not only save the time and manpower required for the steel bar clamp releasing process, but also greatly improve the steel bar clamping accuracy.

[0026] In summary, the technical solution of the present invention can greatly improve the steel bar clamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional structural diagram of a steel bar clamping device provided by the present invention;

[0028] Figure 2 for Figure 1 A three-dimensional structural diagram of the middle connecting rod assembly;

[0029] Figure 3 for Figure 1 A schematic diagram of the movement direction of each component when the distance between the first clamping block and the second clamping block is pulled in;

[0030] Figure 4 for Figure 1 A schematic diagram of the movement direction of each component when the distance between the first clamping block and the second clamping block is pulled apart;

[0031] Reference numerals:

[0032] First clamping block 1; second clamping block 2; first connecting block 3;

[0033] A first connecting rod 4; a second connecting rod 5; a third connecting rod 6;

[0034] A second connecting block 7; a connecting shaft 8; a driving cylinder 9;

[0035] Guide rod 10; first mounting seat 11; second mounting seat 12;

[0036] A first supporting base 13; a second supporting base 14;

[0037] Circlip 15; bearing sleeve 16; jaws 17. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0039] It should be noted that, in the absence of conflict, the features of the embodiments of the present invention may be combined with each other. The present invention will be described in detail below with reference to the embodiments and in conjunction with the accompanying drawings.

[0040] In the prior art, if there are multiple steel bars that need to be clamped, firstly, manually turning the rotating handle to achieve steel bar clamping is time-consuming and labor-intensive. Secondly, the reverse thread set on the surface of the clamping screw can make a pair of clamping blocks approach or move away, thereby achieving the clamping or release of the steel bar. However, when there are multiple steel bars that need to be clamped, the multiple reciprocating movements between the clamping screw and the pair of clamping blocks will cause the external thread on the surface of the clamping screw to wear, that is, reduce the clamping accuracy of the steel bar (that is, the clamping is not tight enough).

[0041] In summary, the existing steel bar clamping devices are time-consuming and labor-intensive to clamp, and have low clamping accuracy, that is, low clamping efficiency.

[0042] Based on this, the present invention provides a steel bar clamping device and a clamping method. First, the driving cylinder can be used to realize automatic clamping, which makes the steel bar clamping save time and effort. Second, the connecting rod assembly can be used to realize tight clamping of the steel bar, which improves the clamping accuracy. In other words, the steel bar clamping efficiency is greatly improved.

[0043] Figure 1 A three-dimensional structural diagram of a steel bar clamping device provided by the present invention, Figure 2 for Figure 1 The three-dimensional structure diagram of the middle connecting rod assembly. Figure 3 for Figure 1 Schematic diagram of the movement direction of each component when the distance between the first clamping block and the second clamping block is pulled in. Figure 4 for Figure 1 Schematic diagram of the movement direction of each component when the distance between the first clamping block and the second clamping block is pulled apart.

[0044] Combination Figure 1 and Figure 2 The present invention provides a steel bar clamping device, comprising: a clamping mechanism for clamping steel bars, a driving mechanism fixedly connected to the clamping mechanism for driving the clamping mechanism, a first guiding mechanism arranged in the clamping mechanism for guiding the clamping mechanism to move linearly, and a supporting mechanism; the supporting mechanism comprises a first supporting mechanism fixedly connected to the driving mechanism for supporting the driving mechanism, and a second supporting mechanism fixedly connected to the first supporting mechanism for supporting the clamping mechanism;

[0045] The clamping mechanism comprises a first clamping block 1 for clamping the steel bar, a second clamping block 2 for clamping the steel bar, and a connecting rod assembly arranged between the first clamping block 1 and the second clamping block 2 for pulling in or pulling out the distance between the first clamping block 1 and the second clamping block 2.

[0046] The connecting rod assembly includes a first connecting block 3 fixedly connected to the first clamping block 1, a first connecting rod 4 hinged to the first connecting block 3, a second connecting rod 5 hinged to the first connecting rod 4, a third connecting rod 6 hinged to the second connecting rod 5, a second connecting block 7 hinged to the third connecting rod 6, the second connecting block 7 is fixedly connected to the second clamping block 2, a connecting shaft 8 hinged to the second connecting rod 5 and used for transmitting thrust and arranged below the second connecting rod 5, and a bearing sleeve 16 passed through the connecting shaft 8 for reducing friction between the second connecting rod 5 and the connecting shaft 8 and absorbing vibration, and the connecting shaft 8 is fixedly connected to the second supporting mechanism;

[0047] The driving mechanism includes a driving assembly fixedly connected to the first clamping block 1 and used for driving the first clamping block 1 to move. The driving assembly includes a driving cylinder 9, and the driving cylinder 9 includes a driving rod.

[0048] In a specific implementation, the driving rod of the driving cylinder 9 can be extended and retracted. For example, when the driving rod is extended in the direction of the second clamping block 2, the first clamping block 1 fixedly connected to the driving rod moves in the direction of the second clamping block 2. For another example, when the driving rod is shortened, the first clamping block 1 fixedly connected to the driving rod moves in the direction opposite to the aforementioned direction.

[0049] See also Figure 3 , when the driving rod is extended (i.e., moves along the direction of the second clamping block 2, hereinafter referred to as the first direction).

[0050] First, the first clamping block 1 fixedly connected to the driving rod moves synchronously along the first direction, the first connecting block 3 fixedly connected to the first clamping block 1 moves synchronously along the first direction, and the first connecting rod 4 and one end hinged to the first connecting block 3 move along the first direction.

[0051] Second, one end of the first connecting rod 4 and the second connecting rod 5 hingedly moves in a direction away from the second clamping block 2 (i.e., a direction opposite to the first direction, i.e., a direction close to the first clamping block 1, hereinafter referred to as the second direction).

[0052] One end of the third connecting rod 5 and the second connecting rod 6 that is hingedly connected moves along the first direction.

[0053] The fourth and third connecting rods 6 move along the second direction at one end hinged to the second connecting block 7. At this time, the first connecting block 3 and the second connecting block 7 are close to each other, that is, the first clamping block 1 and the second clamping block 2 are close to each other, thereby achieving a strong clamping of the steel bar.

[0054] See also Figure 4 , when the driving rod is shortened (ie, moves along the direction of the first clamping block 1, hereinafter referred to as the second direction).

[0055] First, the first clamping block 1 fixedly connected to the driving rod moves synchronously along the second direction, the first connecting block 3 fixedly connected to the first clamping block 1 moves synchronously along the second direction, and the first connecting rod 4 moves along the second direction at one end hinged to the first connecting block 3. Second, the first connecting rod 4 moves along the direction close to the second clamping block 2 (i.e., the direction opposite to the second direction, i.e., the direction close to the second clamping block 2, hereinafter referred to as the first direction) at one end hinged to the second connecting rod 5. Third, the second connecting rod 5 moves along the second direction at one end hinged to the third connecting rod 6. Fourth, the third connecting rod 6 moves along the first direction at one end hinged to the second connecting block 7. At this time, the first connecting block 3 and the second connecting block 7 move away from each other, that is, the first clamping block 1 and the second clamping block 2 move away from each other, thereby achieving the release of the steel bars.

[0056] The beneficial effect reasoning analysis is as follows:

[0057] In the prior art, if there are multiple steel bars that need to be clamped, firstly, manually turning the rotating handle to clamp the steel bars is time-consuming and labor-intensive. Secondly, the reverse thread provided on the surface of the clamping screw can make a pair of clamping blocks approach or move away, thereby clamping or releasing the steel bars. However, when there are multiple steel bars that need to be clamped, the multiple reciprocating motions between the clamping screw and the pair of clamping blocks will cause the external thread on the surface of the clamping screw to wear, that is, reduce the clamping accuracy of the steel bars.

[0058] In summary, the existing steel bar clamping devices are time-consuming and labor-intensive to clamp, and have low clamping accuracy, that is, low clamping efficiency.

[0059] In the technical solution provided by the present invention, firstly, the driving cylinder 9 (specifically the driving rod) automatically pulls in or pulls out the distance between the first clamping block 1 and the second clamping block 2, thereby saving the time and manpower required for clamping and releasing the steel bars. This avoids the time-consuming and labor-intensive situation in the prior art where there are multiple steel bars to be clamped and the steel bars are clamped and released manually.

[0060] Secondly, firstly, the connecting rods in the connecting rod assembly are hinged to each other, and the connecting shaft 8 can realize the transmission of motion, so that the distance between the first clamping block 1 and the second clamping block 2 can be pulled in or pulled apart when the driving rod is driven (for example, shortened or extended). Secondly, since the bearing sleeve 16 is inserted into the connecting shaft 8, the bearing sleeve 16 can not only reduce the wear degree of the connecting shaft 8 by reducing the contact area between the connecting shaft 8 and the second connecting rod 5, but also reduce the vibration of the connecting shaft 8 during the transmission process, so that when the distance between the first clamping block 1 and the second clamping block 2 is pulled in, the steel bar clamping accuracy is guaranteed (that is, the clamping is tighter). It avoids the situation in the prior art that the manual rotation of the rotating handle is required to drive the clamping screw to reciprocate multiple times, and then the external thread on the surface of the clamping screw is worn after the multiple reciprocating movements, resulting in low steel bar clamping accuracy (that is, the clamping force is weakened after the external thread is worn, or the clamping is loose).

[0061] It is precisely by providing the driving cylinder 9 and the connecting rod assembly that not only the time and manpower required for the steel bar clamp release process can be saved, but also the steel bar clamping accuracy can be greatly improved.

[0062] In summary, the technical solution of the present invention can greatly improve the steel bar clamping efficiency.

[0063] In the above-mentioned embodiment, a steel bar clamping device is introduced. In another embodiment of the present invention, the specific structure of the first guide mechanism is introduced.

[0064] For example, the first guide mechanism includes a guide rod 10 inserted between the first clamping block 1 and the second clamping block 2, a pair of mounting seats for mounting the guide rod 10 and arranged on the outside of the first clamping block 1 and the second clamping block 2 and fixedly connected to the guide rod 10, the mounting seats include a first mounting seat 11 arranged on the outside of the first clamping block 1, a second mounting seat 12 arranged on the outside of the second clamping block 2, the first mounting seat 11 is fixedly connected to the second support mechanism, and the second mounting seat 12 is fixedly connected to the second support mechanism.

[0065] In a specific implementation, first, the first clamping block 1, the connecting rod assembly, and the second clamping block 2 are connected. Secondly, since the connecting rod assembly can be pulled apart along the direction of the clamping blocks, the first clamping block 1 and the second clamping block 2 can be pulled apart, and the guide rod 10 can be inserted into the first clamping block 1 and the second clamping block 2. Thirdly, a first mounting seat 11 is provided on the outside of the first clamping block 1, so that the guide rod 10 can be inserted into the first mounting seat 11. A second mounting seat 12 is provided on the outside of the second clamping block 2, so that the guide rod 10 can be inserted into the second mounting seat 12. It should be noted that an external thread is provided on the surface of the guide rod 10 in contact with the mounting seat, and an internal thread that matches the above-mentioned external thread is provided in the opening of the mounting seat. Fourthly, a pair of mounting seats are fixedly installed on the second support mechanism.

[0066] It can be understood that both ends of the guide rod 10 are external threads and the middle is a smooth surface, so that the first clamping block 1 and the second clamping block 2 can slide along the guide rod 10 easily.

[0067] In the above-mentioned embodiment, the specific structure of the first guide mechanism is introduced. In another embodiment of the present invention, the specific structure of the first support mechanism and the second support mechanism is introduced.

[0068] For example, the first supporting mechanism includes a first supporting base 13 fixedly disposed on one side of the driving cylinder 9 , and the second supporting mechanism includes a second supporting base 14 fixedly disposed below the first supporting base 13 .

[0069] Among them, the above-mentioned fixing settings can all be set using screws and nuts.

[0070] In the above-mentioned embodiment, the specific structures of the first supporting mechanism and the second supporting mechanism are introduced. In another embodiment of the present invention, a guide mechanism for limiting the movement direction of the three connecting rods of the connecting rod assembly within the horizontal plane (ie, preventing the connecting rods from moving vertically) is introduced.

[0071] For example, it also includes a second guide mechanism disposed on the first connecting rod 4 , the second connecting rod 5 , and the third connecting rod 6 for guiding the first connecting rod 4 , the second connecting rod 5 , and the third connecting rod 6 to move in a horizontal direction, and the second guide mechanism includes a retaining spring 15 .

[0072] In a specific implementation, the connecting rod assembly can transmit the power of the first clamping block 1 to the second clamping block 2, that is, when the three connecting rods of the connecting rod assembly work together, a retaining spring 15 can be set at both ends of the connecting rod so that the movement direction of the connecting rod is within the horizontal plane where the respective connecting rods are located, and does not move vertically.

[0073] In the above-mentioned embodiment, a guide mechanism is introduced for limiting the movement direction of the three connecting rods of the connecting rod assembly within the horizontal plane (i.e., preventing the connecting rods from moving vertically). In another embodiment of the present invention, a specific structure arranged on the surface of the clamping block for closely contacting the clamping block and the steel bar is introduced.

[0074] For example, the surfaces of the first clamping block 1 and the second clamping block 2 are both provided with jaws 17 .

[0075] In the above-mentioned embodiment, a specific structure arranged on the surface of the clamping block for making the clamping block and the steel bar in close contact is introduced. In another embodiment of the present invention, a method for clamping steel bars using the above-mentioned steel bar clamping device is introduced, and the method comprises:

[0076] The driving cylinder 9 is used to pull the distance between the first clamping block 1 and the second clamping block 2 closer, and the driving cylinder 9 is used to pull the distance between the first clamping block 1 and the second clamping block 2 farther apart;

[0077] The driving cylinder 9 is used to pull the distance between the first clamping block 1 and the second clamping block 2 closer, and the driving cylinder 9 is used to pull the distance between the first clamping block 1 and the second clamping block 2 farther apart;

[0078] When the driving cylinder 9 is used to pull the distance between the first clamping block 1 and the second clamping block 2, compressed air allows air to enter the driving cylinder 9, and the driving cylinder 9 drives the driving rod to push the first clamping block 1 to move linearly in the direction of the second clamping block 2, and the first clamping block 1 and the first connecting block 3 move synchronously, the first connecting block 3 pushes the first connecting rod 4, and the first connecting rod 4 pulls the second connecting rod 5. The connecting shaft 8 arranged below the second connecting rod 5 supports the second connecting rod 5 and transmits the movement of the first connecting rod 4 to the third connecting rod 6. The bearing sleeve 16 penetrated on the connecting shaft 8 reduces the friction and vibration between the second connecting rod 5 and the connecting shaft 8 during the transmission process. The second connecting rod 5 pushes the third connecting rod 6, and the third connecting rod 6 pulls the second connecting block 7. The second connecting block 7 and the second clamping block 2 move linearly synchronously in the direction of the first clamping block 1 under the action of the first guide mechanism;

[0079] When the driving cylinder 9 is used to open the distance between the first clamping block 1 and the second clamping block 2, compressed air allows air to enter the driving cylinder 9, and the driving cylinder 9 drives the driving rod to pull the first clamping block 1 to move linearly in the direction away from the second clamping block 2, and the first clamping block 1 and the first connecting block 3 move synchronously, the first connecting block 3 pulls the first connecting rod 4, and the first connecting rod 4 pushes the second connecting rod 5. The connecting shaft 8 arranged below the second connecting rod 5 supports the second connecting rod 5 and transmits the movement of the first connecting rod 4 to the third connecting rod 6. The bearing sleeve 16 passed through the connecting shaft 8 reduces the friction and vibration between the second connecting rod 5 and the connecting shaft 8 during the transmission movement. The second connecting rod 5 pulls the third connecting rod 6, and the third connecting rod 6 pushes the second connecting block 7. Under the action of the first guide mechanism, the second connecting block 7 and the second clamping block 2 move synchronously in a straight line in the direction away from the first clamping block 1.

[0080] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A steel bar clamping device, characterized in that: include: A clamping mechanism for clamping a steel bar, a driving mechanism fixedly connected to the clamping mechanism for driving the clamping mechanism, a first guide mechanism inserted in the clamping mechanism for guiding the clamping mechanism to move linearly, and a supporting mechanism; the supporting mechanism comprises a first supporting mechanism fixedly connected to the driving mechanism for supporting the driving mechanism, and a second supporting mechanism fixedly connected to the first supporting mechanism for supporting the clamping mechanism; The clamping mechanism comprises a first clamping block (1) for clamping the steel bar, a second clamping block (2) for clamping the steel bar, and a connecting rod assembly arranged between the first clamping block (1) and the second clamping block (2) for pulling the first clamping block (1) and the second clamping block (2) into or out of the distance between them. The connecting rod assembly comprises a first connecting block (3) fixedly connected to the first clamping block (1), a first connecting rod (4) hinged to the first connecting block (3), a second connecting rod (5) hinged to the first connecting rod (4), a third connecting rod (6) hinged to the second connecting rod (5), a second connecting block (7) hinged to the third connecting rod (6), the second connecting block (7) and the second clamping block (2) are fixedly connected, a connecting shaft (8) hinged to the second connecting rod (5) and used for transmitting thrust and arranged below the second connecting rod (5), and a bearing sleeve (16) passed through the connecting shaft (8) and used for reducing friction between the second connecting rod (5) and the connecting shaft (8) and absorbing vibration, and the connecting shaft (8) is fixedly connected to the second supporting mechanism; The driving mechanism comprises a driving assembly fixedly connected to the first clamping block (1) and used for driving the first clamping block (1) to move, the driving assembly comprises a driving cylinder (9), and the driving cylinder (9) comprises a driving rod.

2. A steel bar clamping device according to claim 1, characterized in that: The first guide mechanism comprises a guide rod (10) passing through the first clamping block (1) and the second clamping block (2), and a pair of mounting seats for mounting the guide rod (10) arranged on the outside of the first clamping block (1) and the second clamping block (2) and fixedly connected to the guide rod (10), the mounting seats comprising a first mounting seat (11) arranged on the outside of the first clamping block (1), and a second mounting seat (12) arranged on the outside of the second clamping block (2), the first mounting seat (11) being fixedly connected to the second support mechanism, and the second mounting seat (12) being fixedly connected to the second support mechanism.

3. A steel bar clamping device according to claim 1, characterized in that: The first supporting mechanism comprises a first supporting base (13) fixedly arranged on one side of the driving cylinder (9), and the second supporting mechanism comprises a second supporting base (14) fixedly arranged below the first supporting base (13).

4. A steel bar clamping device according to claim 1, characterized in that: It also includes a second guide mechanism arranged on the first connecting rod (4), the second connecting rod (5), and the third connecting rod (6) for guiding the first connecting rod (4), the second connecting rod (5), and the third connecting rod (6) to move in a horizontal direction, and the second guide mechanism includes a retaining spring (15).

5. A steel bar clamping device according to claim 1, characterized in that: The surfaces of the first clamping block (1) and the second clamping block (2) are both provided with jaws (17).

6. A method for clamping steel bars using the steel bar clamping device according to claim 1, characterized in that: include: Using a driving cylinder (9) to shorten the distance between the first clamping block (1) and the second clamping block (2), and using the driving cylinder (9) to lengthen the distance between the first clamping block (1) and the second clamping block (2); When the driving cylinder (9) is used to pull the distance between the first clamping block (1) and the second clamping block (2), the compressed air causes the air to enter the driving cylinder (9), and the driving cylinder (9) drives the driving rod to push the first clamping block (1) to move linearly in the direction of the second clamping block (2), and the first clamping block (1) and the first connecting block (3) move synchronously, the first connecting block (3) pushes the first connecting rod (4), and the first connecting rod (4) pulls the second connecting rod (5), and the connecting shaft arranged below the second connecting rod (5) (8) supporting the second connecting rod (5) and transmitting the movement of the first connecting rod (4) to the third connecting rod (6); a bearing sleeve (16) provided on the connecting shaft (8) reduces the friction and vibration between the second connecting rod (5) and the connecting shaft (8) during the transmission of the movement; the second connecting rod (5) pushes the third connecting rod (6); the third connecting rod (6) pulls the second connecting block (7); the second connecting block (7) and the second clamping block (2) move synchronously in a straight line along the direction of the first clamping block (1) under the action of the first guide mechanism; When the driving cylinder (9) is used to pull the distance between the first clamping block (1) and the second clamping block (2), the compressed air causes the air to enter the driving cylinder (9), and the driving cylinder (9) drives the driving rod to pull the first clamping block (1) to move linearly in a direction away from the second clamping block (2), and the first clamping block (1) and the first connecting block (3) move synchronously, the first connecting block (3) pulls the first connecting rod (4), and the first connecting rod (4) pushes the second connecting rod (5), and the connecting rod (5) arranged below the second connecting rod (5) The shaft (8) supports the second connecting rod (5) and transmits the movement of the first connecting rod (4) to the third connecting rod (6). The bearing sleeve (16) inserted into the connecting shaft (8) reduces the friction and vibration between the second connecting rod (5) and the connecting shaft (8) during the transmission process. The second connecting rod (5) pulls the third connecting rod (6), and the third connecting rod (6) pushes the second connecting block (7). Under the action of the first guide mechanism, the second connecting block (7) and the second clamping block (2) move synchronously in a straight line in a direction away from the first clamping block (1).

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