Three-way holding clamp

Abstract

The three-way holding clamp comprises a main shaft, a plurality of first clamping plates, a second clamping plate and a moving assembly, the first clamping plates are rotationally connected to the main shaft, the second clamping plate is connected to the first clamping plates through connecting pieces, and the moving assembly is used for driving the first clamping plates to rotate and get close to the second clamping plate. The first clamping plate and the second clamping plate form a three-opening holding clamp structure, the situation that when the first clamping plate and the second clamping plate are opened, motion interference is generated between the first clamping plate and the second clamping plate and the irregular surface of the glass bottle is reduced, production efficiency is improved, and then the application range of the holding clamp to special-shaped glass bottle production is widened.

Description

Technical Field

[0001] The present application relates to the field of row machines, and in particular to a three-opening clamp. Background Art

[0002] In the field of glass container manufacturing, the linear bottle making machine has been widely adopted by many glass manufacturing companies due to its low operating cost and high production efficiency, especially suitable for large-scale production of small-sized molded bottles. In the process of producing glass bottles, the linear machine needs to use a bottle-shaped mold, and a clamp is used to grab the mold. Chinese patent application number CN112062449B discloses a single-drop mold clamp for a row machine, comprising a fixed shaft, a connecting arm, and a clamping mechanism. The connecting arm is rotatably connected to the fixed shaft; the clamping mechanism comprises an upper clamping plate, a lower clamping plate, and a connecting assembly. Two upper and lower clamping plates are provided, each located on the connecting arm and abutting the mold; the connecting assembly is disposed on the connecting arm and is connected to the upper and lower clamping plates. This application has the effect of saving resources.

[0003] With the growing market demand for unusually shaped glass bottles (such as multi-faceted bottles and asymmetrical designs), mold structures are becoming increasingly complex and irregular. Traditional double-plate clamps have significant drawbacks when clamping these asymmetric molds: when the mold's outer contour has localized protrusions, depressions, or non-radially symmetrical features, the two halves of the clamp can easily interfere with the irregular surface of the glass bottle during production. This can lead to the clamps not opening smoothly after clamping, thus impacting production efficiency. Summary of the Invention

[0004] In order to improve the adaptability of the clamp to the production of special-shaped glass bottles and improve production efficiency, the present application provides a three-opening clamp.

[0005] The three-opening clamp provided in this application adopts the following technical solution: A three-opening clamp includes a main shaft, a first clamp, a second clamp, and a moving assembly. The first clamp is provided with several clamps, the first clamp is rotatably connected to the main shaft, and the second clamp is connected to the first clamp via a connecting piece. The moving assembly is used to drive the first clamp to rotate and move closer to or away from the second clamp, and the connecting piece is used to follow the movement of the first clamp and drive the second clamp closer to or away from the first clamp.

[0006] By adopting the above technical solution, when in use, the first clamp and the second clamp both clamp the mold, and the first clamp is driven to rotate by the moving component, and the second clamp follows the first clamp and moves close to the first clamp, forming a three-open clamp structure, reducing the situation where the first clamp and the second clamp have movement interference with the irregular surface of the glass bottle when the first clamp and the second clamp are opened, thereby improving production efficiency and further improving the adaptability of the clamp to the production of special-shaped glass bottles.

[0007] Optionally, the first clamping plate is provided with a mounting groove for placing the connecting member, and when the first clamping plate moves closer to or away from the second clamping plate, the connecting member is always located in the mounting groove.

[0008] By adopting the above technical solution, an installation groove is opened for placing the connector, so that the connector is always in the installation groove when the first splint approaches or moves away from the second splint, reducing the connector from external interference and improving the stability of the connector operation.

[0009] Optionally, the connecting member is a rotating rod, one end of which is hinged to the inner wall of the mounting groove, and the other end of which is hinged to the second clamping plate. The end of the rotating rod in contact with the inner wall of the mounting groove is provided with a plurality of first oil storage tanks, and the first oil storage tanks are used to store lubricating oil.

[0010] By adopting the above technical solution, when in use, the first clamping plate drives the rotating rod to move, and the rotating rod can flexibly connect the first clamping plate and the second clamping plate, so that the second clamping plate can follow the first clamping plate to move closer to or away from the first clamping plate, thereby realizing the opening and closing action of the clamp, and the first oil storage tank can store lubricating oil, reducing the friction between the rotating rod and the inner wall of the installation groove, reducing wear and extending the service life.

[0011] Optionally, the moving assembly includes a driving member, a mounting rod, and a connecting rod, wherein the driving member is used to drive the mounting rod to rotate, one end of the connecting rod is hinged to the mounting rod, and the other end of the connecting rod is hinged to the first clamping plate.

[0012] By adopting the above technical solution, when in use, the driving member drives the mounting rod to rotate, and the mounting rod drives the connecting rod to move, so that the connecting rod drives the first clamp to move, and drives the two first clamps to move closer to or away from each other, thereby facilitating the opening or closing of the clamp.

[0013] Optionally, the second splint is connected to the rotating rod through a support rod, and the rotating rod is hinged to the support rod. When in use, the support rod is always arranged in the installation groove, and a second oil storage tank is opened at the end of the support rod that contacts the inner wall of the installation groove, and the second oil storage tank is used to store lubricating oil.

[0014] By adopting the above technical solution, a second oil storage tank is added. When in use, lubricating oil can be stored in the second oil storage tank, which reduces the friction between the support rod and the inner wall of the installation groove, reduces wear and tear, and extends the service life.

[0015] Optionally, one end of the rotating rod is detachably connected to the inner wall of the mounting groove, and the other end of the rotating rod is detachably connected to the support rod.

[0016] By adopting the above technical solution, the two ends of the rotating rod can be detachably connected, which is convenient for maintenance and replacement of the second splint.

[0017] Optionally, a limiting groove is provided on the inner wall of the installation groove, and one end of the rotating rod is slidably engaged with the inner wall of the limiting groove. The rotating rod is slidably engaged with the inner wall of the limiting groove and drives the support rod to be embedded in or out of the installation groove.

[0018] By adopting the above technical solution, when disassembling the second splint, the rotating rod is removed from the installation groove, so that the rotating rod slides and fits in the limiting groove, and the rotating rod drives the support rod away from the installation groove, so that the support rod is arranged outside the installation groove, which is convenient for the operator to remove the support rod from the rotating rod. The addition of the limiting groove can minimize the situation where the rotating rod is separated from the inner wall of the installation groove. When installing the rotating rod, the rotating rod can move and reset along the length direction of the limiting groove, which facilitates the installation of the rotating rod.

[0019] Optionally, the rotating rod is connected to the limiting block, and the rotating rod is slidably engaged in the limiting groove through the limiting block, and the limiting block is slidably engaged with the inner wall of the limiting groove along the length direction of the limiting groove. The limiting block is slidably engaged with the rotating rod and drives the limiting block close to or away from the limiting groove.

[0020] By adopting the above technical solution, the surface of the rotating rod is severely worn after long-term use. When replacing the rotating rod, the rotating rod is removed from the inner wall of the installation groove, and the limit block is moved so that the limit block is away from the limit groove, thereby facilitating the removal of the rotating rod from the installation groove, and further facilitating the maintenance or replacement of the rotating rod.

[0021] Optionally, the rotating rod is provided with a movable groove, the length direction of the movable groove is consistent with the thickness direction of the rotating rod, the limit block is slidably connected in the movable groove along the thickness direction of the rotating rod, a spring is connected in the movable groove, the length direction of the spring is consistent with the thickness direction of the rotating rod, one end of the spring is connected to the inner wall of the movable groove, and the other end of the spring is connected to the limit block, the spring drives the limit block to abut against the inner wall of the limit groove, and the limit groove is provided with a push hole near one end of the second splint, and the depth direction of the push hole is consistent with the thickness direction of the rotating rod.

[0022] By adopting the above technical solution, when disassembling the rotating rod, the rotating rod is removed from the inner wall of the installation groove, and the rotating rod is moved along the length direction of the limit groove so that the limit opening is close to the pushing hole. When the limit block is close to the pushing hole, the limit block is pushed along the length direction of the moving groove so that the limit block is away from the limit groove, thereby facilitating the removal of the rotating rod from the installation groove, and the limit block is connected to the inner wall of the moving groove by a spring. When in use, the spring drives the limit block to abut against the limit groove, so that when in use, the limit block is stably set in the limit groove, and the rotating rod is stably set in the rotating rod.

[0023] Optionally, the first clamping plate is provided with a first cooling channel, and the second clamping plate is provided with a second cooling channel, and both the first cooling channel and the second cooling channel are used for cooling medium to pass through.

[0024] By adopting the above technical solution and adding the first cooling channel and the second cooling channel, the first splint and the second splint can be cooled and reduced in temperature, thereby minimizing damage to the first splint and the second splint caused by long-term operating temperature increase, and improving the service life and working stability of the first splint and the second splint.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. During use, the first and second clamps both hold the mold, and the first clamp is driven to rotate by the moving assembly. The second clamp follows the first clamp and moves closer to it, forming a three-open clamp structure. This reduces the possibility of the first and second clamps interfering with the irregular surface of the glass bottle when they are opened, thereby improving production efficiency and further expanding the clamp's adaptability to the production of special-shaped glass bottles. 2. During use, the first clamping plate drives the rotating rod to move, and the rotating rod can flexibly connect the first clamping plate and the second clamping plate, so that the second clamping plate can follow the first clamping plate and move closer to or away from the first clamping plate to realize the opening and closing of the clamp. The first oil storage tank can store lubricating oil, reducing friction between the rotating rod and the inner wall of the mounting groove, reducing wear and extending service life; 3. During use, the driving member drives the mounting rod to rotate, and the mounting rod drives the connecting rod to move, so that the connecting rod drives the first clamping plate to move, and drives the two first clamping plates to move closer to or away from each other, thereby facilitating the opening or closing of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional structural diagram of Example 1 of the present application.

[0027] Figure 2 This is a three-dimensional structural diagram of Example 1 of the present application.

[0028] Figure 3 It is a top view of Example 1 of the present application.

[0029] Figure 4 This is Example 1 of the present application Figure 3 Cross-sectional view along the AA axis.

[0030] Figure 5 It is a three-dimensional structural diagram of the rotating rod and the second splint in Example 1 of the present application.

[0031] Figure 6 This is a three-dimensional structural diagram of Example 2 of the present application.

[0032] FIG7 is a cross-sectional view of Example 2 of the present application, used to show the support rod and the rotating rod.

[0033] Figure 8 This is Example 2 of the present application Figure 7 Magnified view of part B.

[0034] FIG9 is a cross-sectional view of Example 3 of the present application, used to show the first cooling channel.

[0035] Figure 10 It is a cross-sectional view of Example 4 of the present application, used to show the first connecting channel and the second connecting channel.

[0036] Explanation of reference numerals: 100, first splint; 110, ring; 120, second groove; 130, second hole; 140, second pin; 141, positioning rod; 150, clamping groove; 160, first positioning groove; 161, first positioning block; 162, first bolt; 163, first cooling channel; 170, mounting groove; 171, limiting groove; 172, pushing hole; 180, third hole; 190, third pin; 200 , second clamping plate; 210, second positioning groove; 211, second cooling channel; 220, second positioning block; 221, second bolt; 230, second communicating channel; 240, second water inlet pipe; 241, second sealing cover; 250, second water outlet pipe; 251, second mounting cover; 300, clamping cavity; 400, rotating rod; 410, supporting rod; 411, second oil storage tank; 420, first oil storage tank; 430, communicating hole; 431, moving groove; 432, spring; 440, stopper; 441, connecting hole; 442, moving ring; 500, moving assembly; 510, driving member; 511, first gear; 512, second gear; 513, first motor; 520, mounting rod; 521, rotating hole; 522, connecting groove; 523, first locking bolt; 524, first locking nut; 525, clearance hole; 530, connecting rod; 540 , rotating shaft; 550, first groove; 551, first hole; 552, first pin shaft; 600, main shaft; 700, locking piece; 710, second locking bolt; 720, second locking nut; 800, clamping part; 810, connecting part; 820, slot; 830, third bolt; 900, first connecting channel; 910, first water inlet pipe; 911, first sealing cover; 920, first water outlet pipe; 921, first installation cover. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-10 This application is described in further detail.

[0038] The embodiment of the present application discloses a three-opening clamp. Figure 1 and Figure 2A three-opening clamp comprises a first clamp 100 and a second clamp 200. Two first clamps 100 are provided, and the second clamp 200 is provided between the two first clamps 100. The second clamp 200 and the two first clamps 100 are spaced apart to form a clamping cavity 300 for placing the mold. Connectors are connected to both ends of the second clamp 200, and each connector is connected to each first clamp 100 respectively. The connector is used to move with the first clamp 100 and drive the second clamp 200 close to the first clamp 100. The first clamps 100 are connected to a moving assembly 500, and the moving assembly 500 is used to drive the first clamp 100 to rotate and drive the first clamp 100 close to the second clamp 200. The first clamp 100 and the second clamp 200 form a three-open clamp structure, and the moving component 500 and the connecting part can flexibly drive the first clamp 100 and the second clamp 200 to move, reducing the motion interference between the first clamp 100 and the second clamp 200 and the irregular surface of the glass bottle when the first clamp 100 and the second clamp 200 are opened, thereby improving production efficiency and further improving the adaptability of the clamp to the production of special-shaped glass bottles.

[0039] Reference Figure 1 and Figure 2 A spindle 600 is disposed between the two first clamping plates 100. A ring 110 is connected to one end of each of the first clamping plates 100. The ring 110 is rotatably sleeved on the spindle 600, with the central axis of the spindle 600 being collinear with the central axis of the first clamping plates 100. The moving assembly 500 comprises a driving member 510, a mounting rod 520, and a connecting rod 530. A rotation hole 521 is defined at one end of the mounting rod 520. The depth of the rotation hole 521 coincides with the thickness of the mounting rod 520. A rotating shaft 540 is connected within the rotation hole 521. The length of the rotating shaft 540 coincides with the thickness of the mounting rod 520. The mounting rod 520 is provided with a connecting groove 522, which is communicated with the rotating hole 521, and the mounting rod 520 is connected with a first locking bolt 523 and a first locking nut 524. The first locking bolt 523 passes through the inner wall on the opposite side of the connecting groove 522 and is threadedly connected to the first locking nut 524. The first locking bolt 523 is connected to the first locking nut 524, driving the inner walls on the opposite sides of the connecting groove 522 closer to each other.

[0040] Reference Figure 1 and Figure 2 The driving member 510 includes a first gear 511, a second gear 512, and a first motor 513. The first gear 511 is sleeved on the rotating shaft 540, and the central axis of the first gear 511 is collinear with the central axis of the rotating shaft 540. The second gear 512 is connected to the output shaft of the first motor 513, and the central axis of the output shaft of the first motor 513 is collinear with the central axis of the second gear 512. The first gear 511 and the second gear 512 are meshed.

[0041] Reference Figure 1 and Figure 2 The mounting rod 520 has a first slot 550 defined at one end away from the rotating shaft 540. One end of the connecting rod 530 is disposed within the first slot 550. One end of the connecting rod 530 is hinged to the inner wall of the first slot 550, while the other end of the connecting rod 530 is hinged to the first clamping plate 100. The mounting rod 520 has a first hole 551 defined therein. The depth of the first hole 551 coincides with the thickness of the mounting rod 520. The first hole 551 extends through the mounting rod 520 along its length and communicates with the first slot 550. A first pin 552 is connected to the mounting rod 520. The first pin 552 extends through the first hole 551 and connects to the connecting rod 530 along the thickness of the mounting rod 520.

[0042] Reference Figure 1 and Figure 2 , both ends of the mounting rod 520 in the thickness direction are provided with a clearance hole 525, the depth direction of the clearance hole 525 is consistent with the thickness direction of the mounting rod 520, the clearance hole 525 is connected to the first groove 550, the length direction of the clearance hole 525 is consistent with the length direction of the mounting rod 520, and one end of the length direction of the clearance hole 525 is connected to the first hole 551.

[0043] Reference Figure 2 and Figure 3 The mounting rod 520 is connected to two locking members 700, each of which is connected to the inner wall of each clearance hole 525. The locking members 700 include a second locking bolt 710 and a second locking nut 720. The locking members 700 are located at the end of the clearance hole 525 near the first hole 551. The second locking bolt 710 passes through the inner wall opposite the clearance hole 525 and is connected to the second locking nut 720. When the second locking bolt 710 and the second locking nut 720 are connected, the inner walls of the corresponding sides of the clearance hole 525 are close to each other.

[0044] Reference Figure 1 and Figure 2The first splint 100 has a second slot 120 at one end near the rotating shaft 540, and the connecting rod 530 is hinged to the inner wall of the second slot 120 at one end away from the mounting rod 520. The first splint 100 has a second hole 130. The depth of the second hole 130 is consistent with the thickness of the first splint 100, and the middle of the second hole 130 is connected to the second slot 120. A second pin 140 is disposed in the second hole 130. The length of the second pin 140 is consistent with the thickness of the first splint 100. The second pin 140 passes through the second hole 130 and the connecting rod 530 along the length direction. A snap-fitting slot 150 is disposed at the top of the first splint 100, and the snap-fitting slot 150 is connected to the second hole 130. A positioning rod 141 is connected to the circumference of the second pin 140. The positioning rod 141 is plugged into the first splint 100 through the snap-fitting slot 150. During use, the first motor 513 drives the second gear 512 to rotate, and drives the first gear 511 to rotate, thereby driving the rotating shaft 540 to rotate, the rotating shaft 540 drives the mounting rod 520 to rotate, the mounting rod 520 drives the connecting rod 530 to move, and the connecting rod 530 drives the first splint 100 to move and drives the two first splints 100 to move closer to or away from each other.

[0045] Reference Figure 1 and Figure 2 The first clamping plate 100 has an end surface near the clamping cavity 300 that is curved, and the concave surface of the end surface near the clamping cavity 300 is facing the clamping cavity 300. A first positioning groove 160 is provided on the top of the first clamping plate 100. The first positioning groove 160 is curved, and the concave surface of the first positioning groove 160 is facing the clamping cavity 300. A first positioning block 161 is provided in the first positioning groove 160. The first positioning block is detachably connected to the inner wall of the first positioning groove 160 by a first bolt 162. The first bolt 162 passes through the first positioning block 161 along the thickness direction of the first clamping plate 100 and is threadedly connected to the inner wall of the first positioning groove 160.

[0046] Reference Figure 1 and Figure 4 The first clamping plate 100 has a mounting groove 170 at one end near the clamping cavity 300, and a connecting member is a rotating rod 400. One end of the rotating rod 400 is hinged to the inner wall of the mounting groove 170, and the other end of the rotating rod 400 is hinged to a support rod 410. The support rod 410 is detachably connected to the rotating rod 400, and the end of the support rod 410 away from the rotating rod 400 is connected to the end of the second clamping plate 200 away from the clamping cavity 300. When in use, the rotating rod 400 and the support rod 410 are always located in the mounting groove 170. Both ends of the rotating rod 400 along the thickness direction of the first clamping plate 100 are in contact with the inner wall of the mounting groove 170, and both ends of the support rod 410 along the thickness direction of the first clamping plate 100 are in contact with the inner wall of the mounting groove 170.

[0047] Reference Figure 4 and Figure 5The rotating rod 400 is provided with a plurality of first oil storage tanks 420 at both ends along the thickness direction of the first splint 100. The first oil storage tanks 420 are used to store lubricating oil. The supporting rod 410 is provided with a plurality of second oil storage tanks 411 at both ends along the thickness direction of the first splint 100. The second oil storage tanks 411 are used to store lubricating oil.

[0048] Reference Figure 1 and Figure 4 The first clamping plate 100 defines a third hole 180, the length of which coincides with the thickness of the first clamping plate 100. The middle portion of the third hole 180 communicates with the mounting slot 170. The rotating rod 400 defines a connecting hole 430, the depth of which coincides with the thickness of the first clamping plate 100. The connecting hole 430 communicates with the mounting slot 170. The first clamping plate 100 is connected to a third pin 190, the length of which coincides with the thickness of the first clamping plate 100. The third pin 190 passes through the third hole 180 and the connecting hole 430 along its length. When the first clamping plate 100 rotates, it drives the connecting rod 530 to move, and the second clamping plate 200 follows the connecting rod 530, thereby moving the second clamping plate 200 closer to or farther from the first clamping plate 100, thereby facilitating the opening or closing of the clamp.

[0049] Reference Figure 1 and Figure 2 The second clamping plate 200 has an arc-shaped end surface near one end of the clamping cavity 300, and the concave arc surface of the end surface of the second clamping plate 200 near one end of the clamping cavity 300 is facing the clamping cavity 300. A second positioning groove 210 is formed on the top of the second clamping plate 200. The second positioning groove 210 is an arc-shaped groove, and the concave arc surface of the second positioning groove 210 is facing the clamping cavity 300. A second positioning block 220 is provided in the second positioning groove 210. The second positioning block is detachably connected to the inner wall of the second positioning groove 210 by a second bolt 221. The second bolt 221 passes through the second positioning block 220 along the thickness direction of the second clamping plate 200 and is threadedly connected to the inner wall of the second positioning groove 210.

[0050] The working principle of this embodiment is as follows: during use, the driving member 510 drives the mounting rod 520 to rotate, which in turn drives the connecting rod 530 to move, which drives the first clamping plate 100 to rotate, bringing the two first clamping plates 100 closer to each other. The movement of the first clamping plate 100 drives the rotating rod 400 to move, which pushes the second clamping plate 200 closer to the first clamping plate 100, thereby closing the clamp. To open the clamp, the driving member 510 drives the mounting rod 520 to rotate, which in turn drives the connecting rod 530 and the first clamping plate 100, moving the two first clamping plates 100 away from each other and the first clamping plate 100 away from the second clamping plate 200, thereby opening the clamp. The first clamp 100 and the second clamp 200 form a three-open clamp structure, thereby reducing the motion interference between the first clamp 100 and the second clamp 200 and the irregular surface of the glass bottle when the first clamp 100 and the second clamp 200 are opened, thereby improving production efficiency and further improving the adaptability of the clamp to the production of special-shaped glass bottles.

[0051] Example 2 The difference between this embodiment and embodiment 1 is that: Reference Figure 6 The first clamping plate 100 includes a clamping portion 800 and a connecting portion 810. The clamping portion 800 is used to clamp the mold and is connected to the connecting portion 810. The connecting portion 810 has a slot 820, and the clamping portion 800 is inserted into the connecting portion 810 through the slot 820. The clamping portion 800 and the connecting portion 810 are detachably connected by a third bolt 830. The third bolt 830 passes through the inner wall of one end of the slot 820 and is threadedly connected to the clamping portion 800 and the connecting portion 810.

[0052] Reference Figure 7 and Figure 8 The mounting groove 170 is provided with limiting grooves 171 on the inner walls at both ends along the thickness direction of the first splint 100. The length direction of the limiting groove 171 is consistent with the radial direction of the third hole 180, and one end of the limiting groove 171 is connected to the third hole 180, and the other end of the limiting groove 171 is arranged close to the clamping cavity 300.

[0053] Reference Figure 7 and Figure 8 The rotating rod 400 is connected to cylindrical limit blocks 440 at both ends along the thickness direction of the first clamping plate 100. The limit blocks 440 slide along the length of the limit groove 171 and fit within the inner wall of the limit groove 171. The limit blocks 440 define a connecting hole 441, the length of which aligns with the thickness direction of the first clamping plate 100. The limit blocks 440 slide along the thickness direction of the first clamping plate 100 and fit within the connecting hole 430.

[0054] Reference Figure 7 and Figure 8Two movable grooves 431 are provided on the inner wall of the connecting hole 430. The length direction of the movable grooves 431 is consistent with the length direction of the connecting hole 430, and the movable grooves 431 are annular grooves. The two movable grooves 431 are spaced apart along the length direction of the connecting hole 430. The limiting block 440 is provided with a movable ring 442. The central axis of the movable ring 442 is collinear with the central axis of the limiting block 440. Each movable ring 442 is respectively provided in each movable groove 431. The movable ring 442 slides along the length direction of the movable groove 431 and fits on the inner wall of the movable groove 431. A spring 432 is connected to the movable groove 431. The length direction of the spring 432 is consistent with the thickness direction of the first splint 100. One end of the spring 432 is connected to the inner wall of the movable groove 431, and the other end of the spring 432 is connected to the movable ring 442. A push hole 172 is provided on the limiting groove 171 near one end of the clamping cavity 300. The depth direction of the push hole 172 is consistent with the thickness direction of the rotating rod 400. The diameter of the pushing hole 172 is greater than or equal to the diameter of the limiting block 440 .

[0055] The implementation principle of this embodiment is as follows: the surface of the rotating rod 400 is prone to wear after long-term use. When replacing the rotating rod, the third pin 190 is removed from the third hole 180, so that the rotating rod 400 is removed from the inner wall of the mounting groove 170, and the rotating rod 400 is moved along the length direction of the limiting groove 171 so that the limiting block 440 is close to the pushing hole 172. When the limiting block 440 is close to the pushing hole 172, the operator pushes the limiting block 440 through the pushing hole 172, and the limiting block 440 moves along the thickness direction of the first splint 100 and away from the limiting groove 171, thereby facilitating the removal of the rotating rod 400 from the mounting groove 170. When installing the rotating rod 400, press the limit block 440, so that the spring 432 is squeezed and deformed, so that the rotating rod 400 can be embedded in the rotating rod 400, so that the rotating rod 400 can be embedded in the installation groove 170. When the rotating rod 400 is close to the limit groove 171, the spring 432 restores its shape and pushes the limit block 440 to embed into the limit groove 171, and moves the rotating rod 400 along the length direction of the limit groove 171, so that the connecting hole 441 is connected to the third hole 180, so that the third pin shaft 190 can pass through the rotating rod 400 and the first splint 100, so as to facilitate the installation of the rotating rod 400 and the installation of the rotating rod.

[0056] Example 3 The difference between this embodiment and the above embodiment is that: Reference Figure 9 A first cooling channel 163 is defined within the inner wall of the first positioning groove 160. The depth of the first cooling channel 163 is aligned with the thickness of the first clamping plate 100, and both ends of the first cooling channel 163 are open. A plurality of first cooling channels 163 are provided, spaced apart along the length of the first positioning groove 160.

[0057] Reference Figure 9 A second cooling channel 211 is defined within the inner wall of the second positioning groove 210. The depth of the second cooling channel 211 coincides with the thickness of the second clamping plate 200, and both ends of the second cooling channel 211 are open. A plurality of second cooling channels 211 are provided, spaced apart along the length of the second positioning groove 210. A fan may be provided beneath the first clamping plate 100 and the second clamping plate 200 to blow air into the first cooling channel 163 and the second cooling channel 211.

[0058] The implementation principle of this embodiment is: a first cooling channel 163 and a second cooling channel 211 are added. When in use, a fan can be used to blow air from under the first splint 100 and the second splint 200. The cooling air passes through the first cooling channel 163 and the second cooling channel 211, thereby cooling the first splint 100 and the second splint 200, and minimizing damage to the first splint 100 and the second splint 200 due to increased temperature over a long period of operation, thereby improving the service life and working stability of the first splint 100 and the second splint 200.

[0059] Example 4 The difference between this embodiment and the above embodiment is that: Reference Figure 10 A first connecting channel 900 is provided in the first splint 100, and the first connecting channel 900 is arranged in an S shape. The end of the first splint 100 away from the clamping cavity 300 is connected to a first water inlet pipe 910, and the first water inlet pipe 910 is communicated with the first connecting channel 900. The end of the first water inlet pipe 910 away from the first connecting channel 900 is threadedly provided with a first sealing cover 911, and the first sealing cover 911 is used to seal the first water inlet pipe 910.

[0060] Reference Figure 10 The first splint 100 is connected to a first water outlet pipe 920 at one end away from the clamping cavity 300. The first water outlet pipe 920 is connected to the first communication channel 900. A first mounting cap 921 is threadedly sleeved on the end away from the first communication channel 900. The first mounting cap 921 is used to seal the first water outlet pipe 920.

[0061] Reference Figure 10 A second connecting channel 230 is provided in the second splint 200, and the second connecting channel 230 is arranged in an S shape. The second splint 200 is connected to the second water inlet pipe 240 at one end away from the clamping cavity 300. The second water inlet pipe 240 is connected to the second connecting channel 230. A second sealing cover 241 is threadedly provided on the end of the second water inlet pipe 240 away from the second connecting channel 230. The second sealing cover 241 is used to seal the second water inlet pipe 240.

[0062] Reference Figure 10The second clamping plate 200 is connected to a second water outlet pipe 250 at one end away from the clamping cavity 300. The second water outlet pipe 250 is in communication with the second connecting channel 230. A second mounting cap 251 is threadedly mounted on the end of the second water outlet pipe 250 away from the second connecting channel 230. The second mounting cap 251 is used to seal the second water outlet pipe 250. The first connecting channel 900 and the second connecting channel 230 are used to store cooling water.

[0063] The implementation principle of this embodiment is: a first connecting channel and a second connecting channel 230 are added. When in use, cooling water is provided in the first connecting channel 900 and the second connecting channel 230, so as to cool down the first splint 100 and the second splint 200, and try to avoid damage to the first splint 100 and the second splint 200 due to long-term working temperature increase, thereby improving the service life and working stability of the first splint 100 and the second splint 200.

[0064] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A three-opening clamp, characterized by: The invention comprises a main shaft (600), a first splint (100), a second splint (200), and a moving assembly (500), wherein the first splint (100) is provided with a plurality of splints, wherein the first splint (100) is rotatably connected to the main shaft (600), and the second splint (200) is connected to the first splint (100) through a connecting piece, and the moving assembly (500) is used to drive the first splint (100) to rotate and move closer to or away from the second splint (200), and the connecting piece is used to follow the movement of the first splint (100) and drive the second splint (200) to move closer to or away from the first splint (100).

2. The three-opening clamp according to claim 1, characterized in that: The first clamping plate (100) is provided with a mounting groove (170) for placing a connecting member, and when the first clamping plate (100) moves closer to or away from the second clamping plate (200), the connecting member is always located in the mounting groove (170).

3. The three-opening clamp according to claim 2, characterized in that: The connecting member is a rotating rod (400), one end of the rotating rod (400) is hinged to the inner wall of the installation groove (170), and the other end of the rotating rod (400) is hinged to the second clamping plate (200). The end of the rotating rod (400) in contact with the inner wall of the installation groove (170) is provided with a plurality of first oil storage grooves (420), and the first oil storage grooves (420) are used to store lubricating oil.

4. The three-opening clamp according to claim 3, characterized in that: The moving assembly (500) comprises a driving member (510), a mounting rod (520), and a connecting rod (530). The driving member (510) is used to drive the mounting rod (520) to rotate. One end of the connecting rod (530) is hinged to the mounting rod (520), and the other end of the connecting rod (530) is hinged to the first clamping plate (100).

5. The three-opening clamp according to claim 3, characterized in that: The second clamping plate (200) is connected to the rotating rod (400) via a support rod (410), and the rotating rod (400) is hinged to the support rod (410). When in use, the support rod (410) is always arranged in the installation groove (170), and a second oil storage groove (411) is provided at one end of the support rod (410) that contacts the inner wall of the installation groove (170). The second oil storage groove (411) is used to store lubricating oil.

6. The three-opening clamp according to claim 5, characterized in that: One end of the rotating rod (400) is detachably connected to the inner wall of the mounting groove (170), and the other end of the rotating rod (400) is detachably connected to the support rod (410).

7. The three-opening clamp according to claim 6, characterized in that: A limiting groove (171) is provided on the inner wall of the installation groove (170), and one end of the rotating rod (400) is slidably engaged with the inner wall of the limiting groove (171). The rotating rod (400) is slidably engaged with the inner wall of the limiting groove (171) and drives the support rod (410) to be embedded in or detached from the installation groove (170).

8. The three-opening clamp according to claim 7, characterized in that: The rotating rod (400) is connected to the limiting block (440), and the rotating rod (400) is slidably engaged in the limiting groove (171) through the limiting block (440). The limiting block (440) is slidably engaged with the inner wall of the limiting groove (171) along the length direction of the limiting groove (171). The limiting block (440) is slidably engaged with the rotating rod (400) and approaches or moves away from the limiting groove (171).

9. The three-opening clamp according to claim 8, characterized in that: The rotating rod (400) is provided with a movable groove (431), the length direction of the movable groove (431) is consistent with the thickness direction of the rotating rod (400), the limiting block (440) is slidably connected to the movable groove (431) along the thickness direction of the rotating rod (400), and a spring (432) is connected to the movable groove (431), the length direction of the spring (432) is consistent with the thickness direction of the rotating rod (400), one end of the spring (432) is connected to the inner wall of the movable groove (431), and the other end of the spring (432) is connected to the limiting block (440), and the spring (432) drives the limiting block (440) to abut against the inner wall of the limiting groove (171), and the limiting groove (171) is provided with a pushing hole (172) at one end close to the second splint (200), and the depth direction of the pushing hole (172) is consistent with the thickness direction of the rotating rod (400).

10. The three-opening clamp according to claim 6, characterized in that: The first clamping plate (100) is provided with a first cooling channel (163), and the second clamping plate (200) is provided with a second cooling channel (211). Both the first cooling channel (163) and the second cooling channel (211) are used for cooling medium to pass through.

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