A clamping mechanism for processing cast iron profiles

Abstract

The present invention provides a clamping mechanism for processing cast iron profiles, which relates to the technical field of profile clamping, and includes: a support frame, a loading frame and a cutting frame; the support frame is slidably connected with a clamping frame, the clamping frame is slidably connected with two transmission plates, the clamping frame is fixedly connected with a first linear driver for driving the transmission plate to move, the side wall of the transmission plate is provided with a clamping assembly, the clamping assembly is used to position the profile while clamping the profile; the clamping assembly includes a clamping shell, the clamping shell is slidably connected with a clamping plate, and a compression spring is connected between the clamping shell and the clamping plate; the support frame is connected with a driving assembly and a second linear driver, the driving assembly is used to drive the clamping frame to reciprocate between the loading frame and the cutting frame, and the driving shaft of the second linear driver is fixedly connected with a material discharge block. The present invention has the effect of reducing the probability of deflection and inclination of the profile and improving the accuracy of the reference surface cut by the milling cutter on the profile.

Description

Technical Field

[0001] The invention relates to the technical field of profile clamping, and in particular to a clamping mechanism for processing cast iron profiles. Background Art

[0002] The oil block in the hydraulic system, also known as the valve block or valve island, is a key component used to adapt, transition, convert, expand, expand the hydraulic oil circuit interface and simplify the pipeline. Usually, the square solid ductile iron profile is cut into a rectangular block of a certain size, and then a series of machine tool processing is performed to obtain the hydraulic valve block.

[0003] When processing hydraulic valve blocks, existing equipment needs to place ductile iron profiles on a double-sided milling machine, mill out two surfaces as reference surfaces, and then use these two surfaces as reference surfaces to mill the remaining surfaces. In order to improve milling efficiency, four profiles are usually arranged in two rows and two columns. After being positioned by a positioning device on the side, the hydraulic system presses the blank and starts milling the reference surface.

[0004] For example, the Chinese patent for a tool for processing profiles with the authorization announcement number CN217832793U and the name thereof is a tool for processing profiles. The tool for processing profiles places the profile between the upper clamp and the lower clamp, starts the motor to drive the first gear to rotate, drives the second gear to rotate through the meshing connection between the first gear and the second gear, drives the third gear to rotate through the meshing connection between the second gear and the third gear, drives the pull rod to move up and down through the meshing connection between the second gear and the rack, performs movement and limit processing on the pull rod through the sliding connection between the pull rod and the limit groove, drives the upper clamp to clamp the profile through the pull rod, thereby achieving clamping of the profile.

[0005] With regard to the above-mentioned related technologies, due to the inconsistency of the sizes of the blanks, when the splint is used to position multiple profiles, when the splint is in contact with the larger profile for positioning, it is difficult for the splint to be in contact with the smaller profile for positioning, so that the smaller profile is not squeezed and there is a probability that it will deflect and tilt. The milling cutter cuts the inclined profile. When the cutting depth of the milling cutter is small, the milling cutter abuts against the inclined side wall of the profile. At this time, it is difficult for the milling cutter to completely cut off the inclined side wall of the profile, and thus it is impossible to mill out a complete reference surface. When the cutting depth of the milling cutter is large and the inclined side wall of the profile is completely cut off, there is a probability that the end of the profile with a larger thickness of the waste material cut off is greater than the cutting margin reserved for the profile, thereby making the profile after cutting too small to be cut into a hydraulic valve block. In summary, the deflection and tilt of the profile makes it difficult to determine the position of the profile, thereby interfering with the cutting depth of the profile to cut out the reference surface, which is not conducive to the production of the profile into a hydraulic valve block. Summary of the invention

[0006] In view of this, the present invention provides a clamping mechanism for processing cast iron profiles, aiming to solve the problem that the deflected profile is difficult to position, making it difficult to determine the position of the profile, thereby interfering with the cutting depth of the profile cut out of the reference surface.

[0007] To solve the above technical problems, the present invention provides a clamping mechanism for processing cast iron profiles, including a supporting frame, a loading frame and a cutting frame; the supporting frame is slidably connected to a clamping frame, the clamping frame is slidably connected to two transmission plates, the clamping frame is fixedly connected to a first linear driver for driving the transmission plate to move, a clamping shell is arranged on the side wall of the transmission plate, the clamping shell is slidably connected to a clamping plate, an extrusion spring is connected between the clamping shell and the clamping plate; the supporting frame is connected to a driving assembly and a second linear driver, the driving assembly is used to drive the clamping frame to reciprocate between the loading frame and the cutting frame, the driving shaft of the second linear driver is fixedly connected to a unloading block, the unloading block is used to push the profile in the clamping frame to the cutting frame.

[0008] By adopting the above technical scheme, the number of clamping plates is set according to the number of a group of profiles, so that the clamping plates facing each other on both sides of the clamping frame fasten one profile, and at the same time, the extrusion spring is adapted to the profiles of different volumes in a group and compressed to different lengths, so that while the clamping plates fasten the profiles for loading, each profile can be moved by the clamping plates to the middle of the two transmission plates for positioning, which reduces the probability of deflection and tilt of the profile, improves the accuracy of the reference surface cut by the milling cutter for the profile, and is conducive to the subsequent processing of the profile into a hydraulic valve block.

[0009] Optionally, the clamping plate is rotatably connected to a transmission shaft, the transmission shaft is fixedly connected with a clamping roller capable of abutting against the profile, the side wall of the transmission shaft is circumferentially provided with a plurality of locking grooves, the clamping plate is slidably connected with a locking ring, the inner side wall of the locking ring is fixedly connected with locking teeth capable of engaging with the locking grooves, and a control mechanism for controlling the rotation state of the clamping roller is provided on the transmission plate.

[0010] Optionally, the control mechanism includes a transmission tube fixedly connected to the support frame, the transmission tube is filled with hydraulic oil, a first piston is slidably connected to one end of the transmission tube, the first piston is fixedly connected to the locking ring, a second piston is slidably connected to one end of the transmission tube away from the first piston, and the second piston is fixedly connected to a transmission block and a return spring.

[0011] By adopting the above technical solution, the clamping roller is unlocked by moving the blanking block downward, so that the clamping roller can rotate on its own, making it easy for the blanking block to push the profile away from the clamping roller. When the blanking block moves upward, the locking ring can automatically reset to engage the locking tooth with the locking groove, so that the clamping roller is locked and continues to tighten the profile.

[0012] Optionally, the transmission block is provided with a transmission cone surface, and the material discharge block can abut against the transmission cone surface when moving downward.

[0013] By adopting the above technical solution, the material discharge block moves downward to abut the transmission cone surface, and the material discharge block continues to move downward through the transmission cone surface to push the transmission block to move close to the transmission tube. The transmission block pushes the second piston to move axially toward the inside of the transmission tube, and the second piston pushes the first piston to move outside the transmission tube through hydraulic oil.

[0014] Optionally, the driving assembly includes a transmission rack fixedly connected to the supporting frame, the clamping frame is fixedly connected to a rotation source, and the driving shaft of the rotation source is fixedly sleeved with a transmission gear that can mesh with the transmission rack.

[0015] Optionally, the inner wall of the transmission plate is hinged with a first pin, the outer wall of the clamping shell is hinged with a second pin, the first pin and the second pin are hinged with a connecting block, the first pin and the second pin are perpendicular to each other, and a support spring is fixedly connected between the transmission plate and the clamping shell.

[0016] By adopting the above technical solution, when the profile surface is arc-shaped, when the clamping roller abuts against the side wall of the profile, in order to adapt to the shape of the profile surface, the clamping shell rotates around the first pin and the second pin, thereby improving the fit between the clamping roller and the profile surface, and thereby improving the firmness of the clamping roller in clamping the profile.

[0017] Optionally, the top wall of the loading rack is rotatably connected to a supporting roller for supporting the profile.

[0018] Optionally, the top wall of the supporting roller is higher than the top wall of the cutting frame.

[0019] Optionally, a plurality of the second linear drivers are arranged along the axial direction of the transmission rack.

[0020] By adopting the above technical solution, the cutting frame receives multiple groups of profiles along the axial direction of the transmission rack, and each second linear drive drives the blanking block to press the profile downward, so that the milling cutter can move along the axial direction of the transmission rack to cut multiple groups of profiles, thereby improving the efficiency of processing the reference surface of the profile.

[0021] Optionally, the cavity inside the locking ring is unicycle-shaped, the locking teeth are fixedly connected to the arc-shaped inner wall of the locking ring, the transmission shaft can rotate inside the locking ring, and the transmission shaft can move axially along the cavity inside the locking ring.

[0022] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects:

[0023] 1. The number of clamping plates is set according to the number of profiles in a group, so that the clamping plates facing each other on both sides of the clamping frame fasten one profile, and at the same time, the extrusion spring is adapted to the profiles of different sizes in a group and compressed to different lengths, so that while the clamping plates fasten the profiles for feeding, each profile can be moved to the middle of the two transmission plates by the clamping plates for positioning, which improves the accuracy of the profile position, reduces the probability of the profile deflection and tilt, and improves the accuracy of the milling cutter cutting the reference surface for the profile, which is conducive to the subsequent processing of the profile into a hydraulic valve block.

[0024] 2. The clamping roller is unlocked by moving the material block downward, so that the clamping roller can rotate, which makes it easier for the material block to push the profile away from the clamping roller. At the same time, the wear of the clamping roller is reduced, which is conducive to maintaining the positioning accuracy of the clamping roller on the profile. When the material block moves upward, the locking ring can automatically reset to make the locking teeth fit into the locking groove, so that the clamping roller is locked and continues to tighten the profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of a clamping shell and a clamping plate according to an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the internal structure of a clamping frame according to an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the internal structure of the clamping shell according to an embodiment of the present invention;

[0029] Figure 5 is a schematic diagram of a second linear actuator and a transmission block according to an embodiment of the present invention;

[0030] Figure 6 Schematic diagram of a second piston and a return spring according to an embodiment of the present invention;

[0031] Figure 7 For the embodiment of the present invention Figure 6 A partial enlarged view of the middle area A;

[0032] Figure 8 Schematic diagram of the first pin shaft, the second pin shaft and the connecting block according to an embodiment of the present invention.

[0033] Explanation of the accompanying drawings: 1. Support frame; 11. Loading frame; 111. Support roller; 12. Cutting frame; 2. Clamping frame; 21. Transmission plate; 22. First linear drive; 23. Clamping shell; 24. Clamping plate; 25. Extrusion spring; 26. Transmission shaft; 27. Clamping roller; 271. Locking groove; 28. Locking ring; 281. Locking tooth; 3. Profile; 41. Transmission rack; 42. Rotation source; 43. Transmission gear; 5. Second linear drive; 51. Unloading block; 6. Transmission pipe; 61. First piston; 62. Second piston; 63. Transmission block; 631. Transmission cone; 64. Reset spring; 7. First pin; 71. Second pin; 72. Connecting block; 73. Support spring. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 8 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0035] This embodiment provides a clamping mechanism for processing cast iron profiles. Figure 1 , Figure 2 and Figure 3 A clamping mechanism for processing cast iron profiles includes a support frame 1, a loading frame 11, a cutting frame 12, a clamping frame 2, a transmission plate 21, a first linear drive 22, a clamping assembly, a driving assembly, a second linear drive 5 and a blanking block 51. The loading frame 11 is used to receive profiles 3, and the profiles 3 are arranged in groups of four in two rows and two columns. The top wall of the loading frame 11 is rotatably connected to a support roller 111 for supporting the profiles 3, and the top wall of the support roller 111 is higher than the top wall of the cutting frame 12. The profiles 3 are transported from the loading frame 11 to the cutting frame 12, and the milling machine cuts the profiles 3 on the cutting frame 12.

[0036] Reference Figure 2 , Figure 3 and Figure 4 The clamping frame 2 is slidably connected to the support frame 1 along the length direction, the transmission plate 21 is slidably connected to the clamping frame 2, and the sliding direction of the transmission plate 21 is perpendicular to the sliding direction of the clamping frame 2, and the two transmission plates 21 are evenly distributed on both sides of the clamping frame 2. The first linear actuator 22 is fixedly connected to the clamping frame 2, and two first linear actuators 22 are provided and arranged on both sides of the clamping frame 2, and the driving shaft of each first linear actuator 22 is fixedly connected to a transmission plate 21.

[0037] Reference Figure 2 , Figure 3 and Figure 4 There are eight clamping assemblies, and every four clamping assemblies are connected to a transmission plate 21. The clamping assemblies on both sides of the clamping frame 2 are arranged opposite to each other, and the two clamping assemblies arranged opposite to each other on both sides of the clamping frame 2 clamp a profile 3 together. The clamping assembly includes a clamping shell 23, a clamping plate 24 and a compression spring 25. The clamping shell 23 is connected to the inner side wall of the transmission plate 21, the clamping plate 24 is slidably connected to the clamping shell 23, and the compression spring 25 is fixedly connected between the clamping shell 23 and the clamping plate 24.

[0038] Reference Figure 1 and Figure 5 The driving assembly is arranged on the support frame 1, and the driving assembly is used to drive the clamping frame 2 to reciprocate between the loading frame 11 and the cutting frame 12. The second linear actuator 5 is fixedly connected to the support frame 1, and the driving shaft of the second linear actuator 5 is fixedly connected to the unloading block 51, and the unloading block 51 is used to push the profile 3 in the clamping frame 2 downward to the cutting frame 12.

[0039] The processing personnel place the profiles 3 in a pile on the loading rack 11, and the first linear actuator 22 drives the transmission plate 21 to move so that the two transmission plates 21 are away from each other. The driving assembly drives the clamping frame 2 to move to the top of the loading rack 11, and the transmission plates 21 move synchronously with the clamping frame 2 to the two sides of the profile 3. The first linear actuator 22 drives the two transmission plates 21 to move closer to each other, and the transmission plate 21 drives the clamping plate 24 to move closer to the profile 3 through the clamping shell 23 and the extrusion spring 25, so that the clamping plate 24 clamps and fixes the profile 3. At this time, the profile 3 pushes the clamping plate 24 to compress the clamping shell 23.

[0040] The driving assembly drives the support frame 1 to move from the loading frame 11 to the cutting frame 12, and the profile 3 moves synchronously with the support frame 1 to separate from the loading frame 11. At this time, the support roller 111 abuts against the profile 3, and the support roller 111 rotates with the movement of the profile 3 to reduce the friction between the profile 3 and the loading frame 11. The profile 3 moves to the cutting frame 12 with the support frame 1, and the second linear actuator 5 pushes the profile 3 downward through the unloading block 51. When the profile 3 moves downward, the extrusion spring 25 continuously squeezes the profile 3 through the clamping plate 24, and the unloading block 51 separates the profile 3 from the clamping plate 24 and falls to the cutting frame 12. The second linear actuator 5 continues to press the profile 3 on the cutting frame 12 downward through the unloading block 51, so that the profile 3 on the cutting frame 12 is tightened, and the milling cutter moves along the length direction of the support frame 1 to process the reference surface of the profile 3.

[0041] The number of clamping plates 24 is set according to the number of profiles 3 in a group, so that the clamping plates 24 facing each other on both sides of the clamping frame 2 fasten one profile 3, and at the same time, the extrusion springs 25 are adapted to the profiles 3 of different volumes in a group and are compressed to different lengths, so that while the clamping plates 24 fasten the profiles 3 for loading, each profile 3 can be moved by the clamping plates 24 to the middle of the two transmission plates 21 for positioning, which improves the position accuracy of the profile 3 and reduces the probability of the profile 3 deflecting and tilting, thereby improving the accuracy of the milling cutter cutting the reference surface for the profile 3, which is beneficial to the subsequent processing of the profile 3 into a hydraulic valve block.

[0042] Reference Figure 4 Each clamping plate 24 is rotatably connected to four transmission shafts 26, and a clamping roller 27 is fixedly connected between two transmission shafts 26 facing each other in the horizontal direction. The clamping roller 27 can abut against the profile 3, and the two clamping rollers 27 are arranged in the vertical direction. The clamping roller 27 is a flexible roller. Specifically, the material of the clamping roller 27 is rubber. The clamping roller 27 is used to clamp the profile 3, and when the clamping roller 27 clamps the profile 3, the contact part between the clamping roller 27 and the profile 3 is squeezed to produce local deformation. Due to the low manufacturing precision of the profile 3, the shape of the surface of the profile 3 is difficult to determine. When the surface of the profile 3 is arc-shaped, two clamping rollers 27 are used to abut against the side wall of the profile 3 instead of the clamping plate 24 abutting against the side wall of the profile 3. At the same time, the contact part between the clamping plate 24 and the profile 3 is locally deformed, so that the contact form between the single clamping plate 24 and the profile 3 is surface contact, thereby improving the stability of the clamped profile 3.

[0043] Reference Figure 4 , Figure 6 and Figure 7 The side wall of the transmission shaft 26 is provided with a plurality of locking grooves 271 along the circumferential direction. The clamping plate 24 is slidably connected with a locking ring 28, the cavity inside the locking ring 28 is a monoid, and the arc-shaped inner side wall of the locking ring 28 is fixedly connected with a locking tooth 281 that can be engaged with the locking groove 271. The transmission shaft 26 can rotate in the locking ring 28, and the transmission shaft 26 can move along the axial direction of the cavity inside the locking ring 28. A control mechanism for controlling the rotation state of the clamping roller 27 is provided on the transmission plate 21.

[0044] Reference Figure 3 and Figure 6 The control mechanism includes a transmission tube 6, a first piston 61, a second piston 62, a transmission block 63 and a return spring 64. The transmission tube 6 is fixedly connected to the support frame 1, and the transmission tube 6 is filled with hydraulic oil. The first piston 61 is slidably connected to one end of the transmission tube 6, the first piston 61 is fixedly connected to the locking ring 28, the second piston 62 is slidably connected to one end of the transmission tube 6 away from the first piston 61, the transmission block 63 and the return spring 64 are fixedly connected to both sides of the second piston 62, and the return spring 64 is arranged in the transmission tube 6.

[0045] Reference Figure 5 and Figure 7 The transmission block 63 is provided with a transmission cone surface 631 , and the material discharge block 51 can abut against the transmission cone surface 631 when moving downward.

[0046] When the locking teeth 281 are engaged with the locking grooves 271, the locking ring 28 limits the rotation of the clamping roller 27 through the transmission shaft 26, and the clamping roller 27 moves synchronously with the clamping plate 24 to abut against the profile 3, so that the clamping roller 27 clamps the profile 3 on the loading rack 11. When the profile 3 is moved to the top of the cutting rack 12, the second linear actuator 5 drives the unloading block 51 to push the profile 3 downward, and the unloading block 51 moves downward to abut against the transmission cone 631. The unloading block 51 continues to move downward and pushes the transmission block 63 to move close to the transmission tube 6 through the transmission cone 631. The transmission block 63 pushes the second piston 62 to move axially toward the inside of the transmission tube 6. The second piston 62 pushes the first piston 61 to move toward the outside of the transmission tube 6 through the hydraulic oil. The first piston 61 pushes the locking ring 28 to move away from the transmission tube 6, so that the locking teeth 281 are disengaged from the locking grooves 271, and the transmission shaft 26 and the clamping roller 27 are unlocked. At this time, the return spring 64 is compressed.

[0047] The second linear drive 5 continues to drive the blanking block 51 to move downward, so that the blanking block 51 pushes the profile 3 downward. The movement of the profile 3 drives the clamping roller 27 to rotate. The rotation of the clamping roller 27 reduces the friction between the clamping roller 27 and the profile 3, and at the same time makes it easy for the blanking block 51 to push the profile 3 downward, so that the profile 3 is separated from the clamping roller 27 and moves to the cutting frame 12. During this period, the blanking block 51 continues to abut against the transmission cone surface 631.

[0048] The profile 3 moves to the cutting frame 12, the second linear actuator 5 drives the blanking block 51 to move upward, the compressed return spring 64 drives the second piston 62 to move outside the transmission tube 6, the second piston 62 drives the transmission block 63 to move away from the transmission tube 6 and reset, and at the same time, the second piston 62 drives the first piston 61 to move inside the transmission tube 6 and reset through the hydraulic oil, and the first piston 61 drives the locking ring 28 to move, so that the locking tooth 281 is engaged with the locking groove 271.

[0049] The clamping roller 27 is unlocked by moving the material block 51 downward, so that the clamping roller 27 can rotate, making it easier for the material block 51 to push the profile 3 away from the clamping roller 27, while reducing the wear of the clamping roller 27, which is conducive to maintaining the positioning accuracy of the clamping roller 27 on the profile 3. When the material block 51 moves upward, the locking ring 28 can automatically reset to make the locking teeth 281 engage with the locking groove 271, so that the clamping roller 27 is locked and continues to tighten the profile 3.

[0050] Reference Figure 1The driving assembly includes a transmission rack 41, a rotation source 42 and a transmission gear 43. The transmission rack 41 is fixedly connected to the top wall of the support frame 1, and the two ends of the transmission rack 41 are respectively arranged near the loading frame 11 and the cutting frame 12, the rotation source 42 is fixedly connected to the clamping frame 2, and the transmission gear 43 is fixedly sleeved on the driving shaft of the rotation source 42, and the transmission gear 43 can mesh with the transmission rack 41. The second linear actuator 5 is provided with a plurality of transmission racks 41 along the axial direction.

[0051] The rotation source 42 drives the transmission gear 43 to rotate, and the transmission gear 43 meshes with the transmission rack 41, so that the transmission gear 43 drives the clamping frame 2 to reciprocate between the loading frame 11 and the cutting frame 12 along the axial direction of the transmission rack 41, thereby the profile 3 at the loading frame 11 is moved to the cutting frame 12, and then the clamping frame 2 at the cutting frame 12 moves to the loading frame 11 to reset. The clamping frame 2 transports multiple groups of profiles 3 on the cutting frame 12 along the axial direction of the transmission rack 41 through the clamping shell 23, the clamping plate 24 and the clamping roller 27. Each second linear drive 5 drives the unloading block 51 to press the profile 3 downward, so that the milling cutter can cut multiple groups of profiles 3 by moving along the axial direction of the transmission rack 41, thereby improving the efficiency of processing the reference surface of the profile 3.

[0052] Reference Figure 4 and Figure 8 The inner wall of the transmission plate 21 is hinged with a first pin shaft 7, the outer wall of the clamping shell 23 is hinged with a second pin shaft 71, the first pin shaft 7 and the second pin shaft 71 are hinged with a connecting block 72, the first pin shaft 7 and the second pin shaft 71 are perpendicular to each other, and a supporting spring 73 is fixedly connected between the transmission plate 21 and the clamping shell 23.

[0053] When the surface of the profile 3 has an inclined angle, when the clamping roller 27 abuts against the side wall of the profile 3, in order to adapt to the shape of the surface of the profile 3, the clamping shell 23 rotates around the first pin 7 and the second pin 71, thereby improving the fit between the clamping roller 27 and the surface of the profile 3, thereby improving the firmness of the clamping roller 27 clamping the profile 3.

[0054] The implementation principle of a clamping mechanism for processing cast iron profiles in an embodiment of the present invention is as follows: the processing personnel place the profiles 3 in a pile on the loading rack 11, and the first linear driver 22 drives the two transmission plates 21 to move away from each other. The rotation source 42 drives the clamping rack 2 to move to the loading rack 11 through the transmission gear 43 and the transmission rack 41. The first linear driver 22 drives the two transmission plates 21 to move closer to each other, and the transmission plate 21 drives the clamping plate 24 to move closer to the profile 3 through the clamping shell 23 and the extrusion spring 25, and the clamping roller 27 moves synchronously with the clamping plate 24 to clamp and fix the profile 3.

[0055] The driving assembly drives the support frame 1 to move from the loading frame 11 to the cutting frame 12, and the profile 3 moves with the support frame 1 to the cutting frame 12. The second linear drive 5 pushes the profile 3 downward through the unloading block 51. The unloading block 51 moves downward to unlock the clamping roller 27. The unloading block 51 continues to move downward to make the profile 3 fall to the cutting frame 12. The second linear drive 5 presses the profile 3 on the cutting frame 12 downward through the unloading block 51, so that the profile 3 on the cutting frame 12 is tightened, and the milling cutter moves along the length direction of the support frame 1 to process the reference surface of the profile 3.

[0056] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A clamping mechanism for processing cast iron profiles, comprising a support frame, a loading frame and a cutting frame, characterized in that: The support frame is slidably connected to a clamping frame, the clamping frame is slidably connected to two transmission plates, the clamping frame is fixedly connected to a first linear actuator for driving the transmission plate to move, a clamping shell is arranged on the side wall of the transmission plate, the clamping shell is slidably connected to a clamping plate, and a compression spring is connected between the clamping shell and the clamping plate; The support frame is connected with a driving assembly and a second linear actuator, the driving assembly is used to drive the clamping frame to reciprocate between the loading frame and the cutting frame, the driving shaft of the second linear actuator is fixedly connected with a blanking block, and the blanking block is used to push the profile in the clamping frame to the cutting frame; The clamping plate is rotatably connected to a transmission shaft, the transmission shaft is fixedly connected to a clamping roller capable of abutting against the profile, and the transmission plate is provided with a control mechanism for controlling the rotation state of the clamping roller; The side wall of the transmission shaft is provided with a plurality of locking grooves along the circumferential direction, the clamping plate is slidably connected with a locking ring, and the inner side wall of the locking ring is fixedly connected with locking teeth that can be engaged with the locking grooves; The control mechanism comprises a transmission tube fixedly connected to the support frame, the transmission tube is filled with hydraulic oil, one end of the transmission tube is slidably connected to a first piston, the first piston is fixedly connected to the locking ring, the end of the transmission tube away from the first piston is slidably connected to a second piston, and the second piston is fixedly connected to a transmission block and a return spring; The transmission block is provided with a transmission cone surface, and the material discharge block can abut against the transmission cone surface when it moves downward; The inner side wall of the transmission plate is hinged with a first pin, the outer side wall of the clamping shell is hinged with a second pin, the first pin and the second pin are hinged with a connecting block, the first pin and the second pin are perpendicular to each other, and a supporting spring is fixedly connected between the transmission plate and the clamping shell; The cavity inside the locking ring is unicycle-shaped, the locking teeth are fixedly connected to the arc-shaped inner wall of the locking ring, the transmission shaft can rotate inside the locking ring, and the transmission shaft can move axially along the cavity inside the locking ring.

2. A clamping mechanism for processing cast iron profiles according to claim 1, characterized in that: The driving assembly comprises a transmission rack fixedly connected to the supporting frame, the clamping frame is fixedly connected to a rotation source, and a driving shaft of the rotation source is fixedly sleeved with a transmission gear that can mesh with the transmission rack.

3. The clamping mechanism for processing cast iron profiles according to claim 1, characterized in that: The top wall of the loading rack is rotatably connected with a supporting roller for supporting the profile.

4. A clamping mechanism for processing cast iron profiles according to claim 3, characterized in that: The top wall of the supporting roller is higher than the top wall of the cutting frame.

5. The clamping mechanism for processing cast iron profiles according to claim 2, characterized in that: A plurality of second linear actuators are arranged along the axial direction of the transmission rack.

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