A triangular milling device for a knitting circular knitting machine center group

Abstract

The present application discloses a triangular milling device for a center group of a large circular knitting machine, and relates to the technical field of milling devices, including a workbench, a tooling seat is slidably arranged on the workbench, and a lifting member is arranged on the workbench; a milling cutter is rotatably arranged on the workbench, and a driving member for driving the milling cutter to rotate is arranged on the workbench; a receiving groove is provided on the tooling seat, and a first clamping plate and a second clamping plate are slidably arranged on the tooling seat; a power member is arranged on the workbench, and the power member drives the first clamping plate and the second clamping plate to move in the middle position of the receiving groove; a positioning column is slidably arranged on the tooling seat; a plurality of mounting grooves are circumferentially arranged on the outer wall of the positioning column and away from the receiving groove, and the positioning column is provided with a positioning block that slides in the mounting groove; a control component, and the control component controls the positioning column to slide up and down; and a transmission component, when the positioning column slides into the receiving groove, the transmission component drives the positioning block to slide and protrude out of the mounting groove. The present application can improve the production speed of triangles.

Description

Technical Field

[0001] This application relates to the technical field of milling equipment, and in particular to a triangular milling equipment for a knitting circular knitting machine central unit group. Background Art

[0002] The cams used in the knitting circular knitting machine central unit group are one of the core parts of the knitting circular knitting machine, and their main function is to control the movement and movement form of the knitting needles and sinkers.

[0003] Currently, when producing cams, a milling machine is usually used. During production, the position of the workpiece is determined by a limit post, and then the workpiece is installed and fixed on the machine tool by a fixture. Then the machine tool is started, and the workpiece is milled by a milling cutter.

[0004] However, when producing cams, usually a single workpiece is fixed on the machine tool for milling. After milling is completed, the workpiece is replaced again for the production of the next cam, which relatively affects the production speed. Summary of the Invention

[0005] In order to improve the production speed of cams, this application provides a triangular milling equipment for a knitting circular knitting machine central unit group.

[0006] This application provides a triangular milling equipment for a knitting circular knitting machine central unit group, adopting the following technical solutions:

[0007] A triangular milling equipment for a knitting circular knitting machine central unit group includes a workbench, on which a tooling seat is slidably arranged, and the workbench is provided with a lifting member for driving the tooling seat to slide up and down;

[0008] A milling cutter is rotatably arranged on the workbench, and the workbench is provided with a driving member for driving the milling cutter to rotate;

[0009] A receiving groove is formed on the tooling seat, and a first clamping plate and a second clamping plate are slidably arranged on the tooling seat and located in the receiving groove. The first clamping plate and the second clamping plate are perpendicular to each other and adjacent to each other;

[0010] The workbench is provided with a power member, and the power member drives the first clamping plate and the second clamping plate to move towards the middle position of the receiving groove;

[0011] Positioning posts are slidably arranged up and down on the tooling seat and located in the receiving groove. There are multiple positioning posts and they are evenly spaced;

[0012] A plurality of installation grooves are circumferentially formed on the outer wall of the positioning post and away from the receiving groove, and the positioning post is provided with positioning blocks slidable in the installation grooves;

[0013] A control component is arranged on the tooling seat, and the control component controls the positioning column to slide up and down;

[0014] The transmission assembly drives the positioning block to slide and protrude out of the installation groove when the positioning column slides into the accommodating groove.

[0015] By adopting the above technical solution, when milling the triangle, first put multiple workpieces into the receiving groove one by one, so that the positioning column passes through the hole groove opened on the workpiece for the bolts and screws to pass through. Then drive the power piece so that the first clamping plate and the second clamping plate clamp the workpiece. Then control the positioning column to slide downward through the control component, and then transmit power through the transmission component to push the positioning block to protrude out of the installation groove, restrict the workpiece, and achieve the fixation of the workpiece. Finally, the milling equipment can be started, so that the milling cutter mills the workpiece to complete the processing of the triangle. The whole process is simple, and multiple workpieces can be processed continuously without frequent replacement of workpieces, which greatly improves the production speed of triangles.

[0016] Optionally, the transmission assembly includes a transmission column and an elastic rope;

[0017] The elastic rope is arranged in the positioning column, and the two ends of the elastic rope are respectively connected to the relative positioning blocks, and the elastic rope drives the relative positioning blocks to approach each other;

[0018] The transmission column slides up and down in the positioning column, the bottom of the transmission column protrudes out of the positioning column, and the positioning block is inclined away from the installation slot and has a transmission surface facing the transmission column;

[0019] When the positioning column slides downward, the transmission column slides on the transmission surface, pushing the relative positioning blocks away from each other, and at this time, the positioning blocks protrude out of the installation groove.

[0020] By adopting the above technical solution, the transmission assembly includes a transmission column and an elastic rope, and the elastic rope is connected between the positioning blocks to drive them closer to each other. When the positioning column slides downward, the transmission column slides on the transmission surface of the positioning block, pushing the positioning blocks away from each other, so that they protrude out of the installation groove. The extension and retraction of the positioning blocks can be achieved through a simple sliding action, which is easy to operate and stable and reliable.

[0021] Optionally, a curved surface structure is provided on the top of the transmission column.

[0022] By adopting the above technical solution, the design of the arc surface structure reduces the friction and resistance during the sliding process, improves the transmission efficiency, and at the same time prolongs the service life of the transmission column and the positioning block.

[0023] Optionally, a linkage plate is provided in the tooling seat for sliding up and down, and the positioning column is arranged on the linkage plate.

[0024] By adopting the above technical solution, a linkage plate that slides up and down is provided inside the tooling seat, and the positioning post is arranged on the linkage plate. The up and down sliding of the linkage plate drives the positioning post to move synchronously.

[0025] Optionally, the control assembly includes a control airbag, a storage airbag, a control board, and a control bolt;

[0026] A connecting post that slides in the tooling seat is arranged on one side of the linkage plate away from the positioning post. A connecting block is arranged on the outer peripheral side of the connecting post and away from the linkage plate, and the connecting block slides up and down in the tooling seat;

[0027] The control airbag is arranged around the connecting post. One outer wall of the control airbag abuts against the connecting block, and the other outer wall of the control airbag away from the connecting block abuts against the tooling seat;

[0028] The storage airbag is arranged inside the tooling seat, and the storage airbag is communicated with the control airbag;

[0029] The control board is slidably connected inside the tooling seat. The control bolt is threadedly connected to the tooling seat, and the control bolt is rotatably connected to the side of the control board away from the storage airbag.

[0030] By adopting the above technical solution, the control assembly includes a control airbag, a storage airbag, a control board, and a control bolt. The up and down sliding of the linkage plate is driven by the inflation and deflation of the control airbag, thereby controlling the movement of the positioning post. The control bolt is used to adjust the position of the control board, thereby controlling the inflation and deflation amount of the airbag.

[0031] Optionally, the positioning post includes an upper post and a lower post, and the upper post is located above the lower post and is rotatably connected;

[0032] The linkage plate is provided with a through hole for the lower post to pass through, and the diameter of the through hole is larger than the diameter of the lower post;

[0033] An upper limit ring located above the linkage plate is arranged on the outer wall of the lower post, and the diameter of the upper limit ring is larger than the diameter of the through hole;

[0034] A lower limit ring is arranged on the outer wall of the bottom of the lower post. A connecting ring slides up and down on the outer peripheral side wall of the lower post, and the diameter of the connecting ring is larger than the diameter of the through hole. The connecting ring is located below the linkage plate;

[0035] An expansion airbag is sleeved on the outer peripheral side of the lower post, and the outer wall of the expansion airbag is respectively connected to the connecting ring and the lower limit ring;

[0036] The positioning post is provided with a clamping assembly. When the upper post rotates relative to the lower post, the clamping assembly drives the expansion airbag to expand until the connecting ring and the upper limit ring clamp the linkage plate.

[0037] By adopting the above technical solution, the positioning post is composed of an upper post and a lower post, and the upper post can rotate relative to the lower post. The expansion airbag is driven to expand by the clamping assembly, so that the connecting ring and the upper limit ring clamp the linkage plate, realizing the fixation of the positioning post.

[0038] Optionally, the clamping assembly includes a power block, a power airbag, a power pipe, power teeth and limit teeth;

[0039] A power post is coaxially arranged at the bottom of the upper post, and a power arc groove surrounding the power post is formed in the lower post. The power block is arranged on the outer peripheral side of the power post and is slidably connected in the power arc groove;

[0040] The power airbag is arranged in the power arc groove, the power pipe penetrates through the lower post, and the power pipe connects the power airbag and the expansion airbag;

[0041] When the lower post rotates relative to the upper post, the power block squeezes the power airbag;

[0042] The power teeth are arranged on the outer wall of the power block, there are multiple limit teeth and they are evenly arranged on the groove wall of the power arc groove, and the power teeth are slidably connected with the limit teeth.

[0043] By adopting the above technical solution, when the upper post rotates relative to the lower post, the power block squeezes the power airbag, drives the expansion airbag to expand through the power pipe, and the sliding connection between the power teeth and the limit teeth ensures the stability and reliability of the clamping process.

[0044] Optionally, the power member is a power bolt, and the power bolt is threadedly connected to the tooling seat;

[0045] The power bolt is rotatably connected to the first clamping plate and the second clamping plate in a one-to-one correspondence.

[0046] By adopting the above technical solution, the power bolt is threadedly connected to the tooling seat and is rotatably connected to the first clamping plate and the second clamping plate. By rotating the power bolt, the clamping plate can be driven to move towards the middle of the receiving groove to clamp the workpiece.

[0047] In summary, the present application includes at least one of the following beneficial effects:

[0048] 1. During triangular milling, first place multiple workpieces one by one into the receiving grooves, such that the positioning posts pass through the holes and grooves provided on the workpieces for bolts and screws to pass through. Then drive the power component to clamp the workpieces with the first clamping plate and the second clamping plate. Then, restrict the workpieces by protruding the positioning blocks out of the installation grooves to achieve the fixation of the workpieces. Finally, start the milling equipment, such that the milling cutter mills the workpieces to complete the processing of the triangles. The whole process is simple, capable of continuously processing multiple workpieces, without the need to frequently replace the workpieces, greatly improving the production speed of the triangles;

[0049] 2. A linkage plate that slides up and down is provided inside the tooling seat, and the positioning posts are arranged on the linkage plate. The up and down sliding of the linkage plate drives the positioning posts to move synchronously. Description of the Drawings

[0050] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0051] Figure 2 is the internal cross-sectional schematic diagram of the embodiment of the present application;

[0052] Figure 3 is Figure 2 the enlarged schematic diagram of part A of

[0053] Figure 4 is the internal cross-sectional schematic diagram of the tooling seat in the embodiment of the present application;

[0054] Figure 5 is Figure 4 the enlarged schematic diagram of part B of

[0055] Figure 6 is the internal cross-sectional schematic diagram of the lower column in the embodiment of the present application;

[0056] Figure 7 is Figure 6 the enlarged schematic diagram of part C of

[0057] Reference numerals: 1, workbench; 11, lifting member; 12, milling cutter; 13, driving member; 2, tooling seat; 21, receiving groove; 211, sliding groove; 212, linkage groove; 213, connecting groove; 214, sliding groove; 22, first clamping plate; 23, second clamping plate; 24, power bolt; 25, linkage plate; 251, connecting column; 252, connecting block; 253, through hole; 3, positioning column; 31, mounting groove; 32, positioning block; 321, driving surface; 33, upper column; 331, power column; 34, lower column; 341, upper limit ring; 342, lower limit ring; 343, connecting ring; 344, expansion airbag; 345, power arc groove; 4, control assembly; 41, control airbag; 42, air storage bag; 43, control board; 44, control bolt; 5, transmission assembly; 51, transmission column; 52, elastic cord; 6, clamping assembly; 61, power block; 62, power airbag; 63, power pipe; 64, power tooth; 65, limit tooth. Detailed implementation manners

[0058] The following further Figure 1-7 describes the present application in detail with reference to the attached drawings.

[0059] The embodiment of the present application discloses a triangular milling device for a knitting circular knitting machine center group. Refer to Figure 1 and Figure 2 , the milling device includes a workbench 1, a driving frame is arranged on the workbench 1, a tooling seat 2 slidably connected to the driving frame is arranged on the workbench 1, and the tooling seat 2 can move along the length direction and the width direction of the workbench 1 on the driving frame. The workbench 1 is provided with a lifting member 11, and the lifting member 11 is a lifting hydraulic cylinder. The lifting hydraulic cylinder is fixedly connected to the workbench 1, and the top of the lifting hydraulic cylinder is fixed to the bottom of the driving frame. When in use, the lifting hydraulic cylinder drives the driving frame to slide up and down.

[0060] A milling cutter 12 is rotatably connected to the workbench 1, a driving member 13 is arranged on the workbench 1, the driving member 13 is a driving motor, the driving motor is fixed on the top of the workbench 1, the output shaft of the driving motor is rotatably connected to the workbench 1, and the output shaft of the driving motor is fixedly connected to the milling cutter 12. When in use, the driving motor is started to drive the milling cutter 12 to rotate, so as to mill the workpiece. In the present application, a control system is arranged on the workbench 1 to control the start of the driving motor and the movement track of the driving frame, so that the milling cutter can mill the workpiece according to a fixed track.

[0061] The tooling base 2 is provided with a receiving groove 21. During installation, the workpieces can be evenly placed horizontally and longitudinally in the receiving groove 21, and the adjacent workpieces are in contact with each other. A first clamping plate 22 and a second clamping plate 23 are slidably arranged on the tooling base 2. The first clamping plate 22 and the second clamping plate 23 are respectively located in the receiving groove 21. The first clamping plate 22 and the second clamping plate 23 are perpendicular to each other and adjacent to each other, and the first clamping plate 22 and the second clamping plate 23 are respectively located at the positions of the groove walls of the receiving groove 21.

[0062] The workbench 1 is provided with a power component, and the power component is a power bolt 24. There are two power bolts 24, which respectively correspond to the first clamping plate 22 and the second clamping plate 23 one by one. The end parts of the two power bolts 24 are respectively rotatably connected to one side of the first clamping plate 22 and the second clamping plate 23 away from the middle position of the receiving groove 21. When the workpieces are evenly placed horizontally and longitudinally into the receiving groove 21, the two power bolts 24 are respectively driven, so that the first clamping plate 22 and the second clamping plate 23 move towards the middle position of the receiving groove 21. At this time, the first clamping plate 22 and the second clamping plate 23 respectively cooperate with the groove walls of the receiving groove 21 to clamp the workpieces, so that multiple workpieces can be installed and fixed on the tooling base 2.

[0063] See Figure 2 And Figure 3 , a downward-extending sliding groove 211 is opened at the bottom of the receiving groove 21. There are multiple sliding grooves 211, which are evenly spaced, and the sliding grooves 211 correspond to the workpieces one by one. The tooling base 2 is provided with positioning columns 3, and the positioning columns 3 slide up and down in the sliding grooves 211. There are multiple positioning columns 3, which correspond to the sliding grooves 211 one by one. The diameter of the positioning columns 3 is adapted to the diameter of the hole grooves provided on the workpieces for bolts and screws to pass through.

[0064] See Figure 4 And Figure 5 , a linkage groove 212 is opened in the tooling base 2. The linkage groove 212 is located at the bottom of the sliding groove 211, and the sliding groove 211 is communicated with the linkage groove 212. The tooling base 2 is provided with a linkage plate 25, and the linkage plate 25 slides up and down in the linkage groove 212. The positioning columns 3 are arranged on the linkage plate 25. The milling equipment further includes a control component 4, and the control component 4 is arranged on the tooling base 2. During use, the positioning columns 3 are controlled to slide up and down through the control component 4.

[0065] The control component 4 includes a control airbag 41, an air storage bag 42, a control board 43 and a control bolt 44. A connecting groove 213 extending downward is formed in the bottom wall of the linkage groove 212 inside the tooling seat 2. A connecting column 251 is fixedly connected to the side of the linkage plate 25 away from the positioning column 3, and the connecting column 251 is slidably connected up and down in the connecting groove 213. A sliding groove 214 is formed in the tooling seat 2, and the sliding groove 214 is located on the side of the connecting groove 213 away from the linkage groove 212, and the sliding groove 214 communicates with the connecting groove 213. A connecting block 252 is fixedly connected to the outer peripheral side of the connecting column 251 and away from the linkage plate 25, and the connecting block 252 slides up and down in the sliding groove 214.

[0066] The control airbag 41 is connected end to end to form a ring structure. The control airbag 41 is arranged around the connecting column 251 and is located in the sliding groove 214. The bottom outer wall of the control airbag 41 is fixedly connected to the connecting block 252, and the outer wall of the control airbag 41 away from the connecting block 252 is fixedly connected to the top wall of the sliding groove 214.

[0067] An extrusion groove is formed in the tooling seat 2. The air storage bag 42 is installed in the extrusion groove. The air storage bag 42 is fixedly communicated with an air delivery pipe, and the side of the air delivery pipe away from the air storage bag 42 is fixedly communicated with the control airbag 41. The control board 43 is slidably connected in the extrusion groove. One side outer wall of the air storage bag 42 is fixedly connected to the side of the extrusion plate close to the control airbag 41, and the other side outer wall is fixedly connected to the groove wall of the extrusion groove close to the control airbag 41. The control bolt 44 is threadedly connected to the tooling seat 2, and the control bolt 44 is rotatably connected to the side of the control board 43 away from the air storage bag 42.

[0068] See Figure 5 And Figure 6 , when the control bolt 44 rotates forward, the control bolt 44 drives the control board 43 to extrude the air storage bag 42. At this time, the air in the air storage bag 42 flows into the control airbag 41 through the air delivery pipe. At this time, the control airbag 41 expands and pushes the connecting block 252 away from the receiving groove 21. At this time, the connecting column 251 drives the linkage plate 25 to move downward, so that the positioning column 3 moves downward. When the control bolt 44 rotates reversely, the extrusion plate moves away from the control airbag 41. At this time, the air storage bag 42 is released, so that the air flow in the control airbag 41 flows back into the air storage bag 42. The control airbag 41 drives the connecting block 252 to move towards the receiving groove 21, and the positioning column 3 slides out of the receiving groove 21.

[0069] See Figure 3 , an installation groove 31 extending in the circumferential direction is formed in the outer wall of the positioning column 3. There are two installation grooves 31 and they are arranged at an interval of 180 degrees in the circumferential direction. The installation groove 31 is located at the position of the positioning column 3 away from the receiving groove 21, and the two installation grooves 31 communicate with each other. The positioning column 3 is provided with positioning blocks 32. There are two positioning blocks 32 and they correspond to the installation grooves 31 one by one. The installation blocks slide in the installation grooves 31.

[0070] The milling equipment also includes a transmission component 5, which is arranged on the positioning column 3. When the positioning column 3 slides into the receiving groove 21, the transmission component 5 drives the positioning block 32 to slide and protrude out of the installation groove 31, so that the positioning block 32 abuts against the workpiece, limiting the positioning block 32 from moving out of the receiving groove 21.

[0071] The transmission assembly 5 includes a transmission column 51 and an elastic rope 52. The elastic rope 52 is located in the installation groove 31. The two ends of the elastic rope 52 are respectively fixedly connected to the opposite sides of the two relative positioning blocks 32. The elastic rope 52 is made of elastic material. When the elastic rope 52 is released, the two relative positioning blocks 32 are pulled closer to each other, and the two positioning blocks 32 slide into the installation groove 31 at the same time, so that the workpiece can be separated from the positioning column 3.

[0072] The transmission column 51 slides up and down in the positioning column 3. The top of the transmission column 51 is provided with an arc surface structure, and the bottom of the transmission column 51 protrudes out of the positioning column 3. The two positioning blocks 32 are inclined on the opposite sides to each other to open transmission surfaces 321, and the transmission surfaces 321 are arranged toward the transmission column 51. When the positioning column 3 slides downward, the bottom of the transmission column 51 abuts against the tooling seat 2, and then the transmission column 51 slides toward the positioning column 3. At this time, the top of the transmission column 51 slides on the transmission surface 321, pushing the two relative positioning blocks 32 away from each other, so that the two positioning blocks 32 protrude out of the mounting slot 31 respectively, and can limit the workpiece.

[0073] In order to adapt to workpieces of different lengths and widths, the diameter of the slide groove 211 is larger than the diameter of the positioning column 3. The positioning column 3 slides on the linkage plate 25 so that the position of the positioning column 3 can be adjusted.

[0074] The positioning column 3 includes an upper column 33 and a lower column 34. A power column 331 is coaxially fixed to the bottom of the upper column 33. The upper column 33 is located at the top of the lower column 34. The power column 331 is rotatably connected to the lower column 34 and is coaxially arranged. The transmission column 51 is slidably penetrated through the upper column 33, the lower column 34 and the power column 331. The linkage plate 25 is provided with a penetration hole 253. The lower column 34 is penetrated through the penetration hole 253. The diameter of the penetration hole 253 is larger than the diameter of the lower column 34. An upper limit ring 341 is fixedly connected to the outer wall of the lower column 34. The upper limit ring 341 is located above the linkage plate 25. The diameter of the upper limit ring 341 is larger than the diameter of the penetration hole 253.

[0075] The lower outer wall of the bottom of the lower column 34 is fixedly connected with a lower limit ring 342, and the outer peripheral side wall of the lower column 34 is slidably provided with a connecting ring 343, the diameter of which is larger than the diameter of the through hole 253, and the connecting ring 343 is located below the linkage plate 25. An expansion airbag 344 is sleeved on the outer peripheral side of the lower column 34, and the outer wall of the expansion airbag 344 is fixedly connected to the connecting ring 343 and the opposite side of the lower limit ring 342 respectively.

[0076] See alsoFigure 5 With Figure 7 , the positioning post 3 is provided with a clamping assembly 6. When the upper post 33 rotates relative to the lower post 34, the clamping assembly 6 drives the expansion airbag 344 to expand, so that the connecting ring 343 moves towards the upper limiting ring 341, driving the cooperation between the connecting ring 343 and the upper limiting ring 341 to clamp the linkage plate 25. At this time, the positioning post 3 enters a fixed state.

[0077] The clamping assembly 6 includes a power block 61, a power airbag 62, a power tube 63, a power tooth 64 and a limit tooth 65. The lower post 34 is provided with a power arc groove 345, which extends circumferentially on the horizontal plane and surrounds the power post 331. The power block 61 is fixedly connected to the outer peripheral side of the power post 331 and slidably connected in the power arc groove 345. The power airbag 62 is arranged in the power arc groove 345. One end of the power airbag 62 is fixedly connected to the groove wall of the power arc groove 345 away from the power block 61, and the other end of the power airbag 62 is fixedly connected to the outer wall of the power block 61. The power tube 63 penetrates through the lower post 34, and both ends of the power tube 63 are fixedly communicated with the power airbag 62 and the expansion airbag 344 respectively. The power tooth 64 is fixed to the outer wall of the power block 61, and there are multiple limit teeth 65 evenly fixed to the groove wall of the power arc groove 345. The power tooth 64 is slidably connected with the limit teeth 65. In the embodiment of the present application, the power tooth 64 and the limit teeth 65 are triangular tooth-like structures, and the power tooth 64 and the limit teeth 65 are made of materials capable of elastic deformation, such as plastics, stainless steel, etc.

[0078] See Figure 5 With Figure 6 , when the position of the positioning post 3 needs to be adjusted, first pass the positioning post 3 far from the first clamping plate 22 and the second clamping plate 23 through the workpiece, and abut the workpiece against the groove wall of the receiving groove 21 far from the first clamping plate 22 and the second clamping plate 23; then after taking out the workpiece, pinch the lower post 34 and rotate the upper post 33. At this time, the lower post 34 rotates relative to the upper post 33.

[0079] See Figure 5 With Figure 7 , when the lower post 34 rotates relative to the upper post 33, the power block 61 slides in the power arc groove 345, squeezing the power airbag 62. At the same time, the sliding tooth slides on the limit teeth 65 to limit the reverse sliding of the power block 61; when the power airbag 62 is squeezed, the air in the power airbag 62 flows into the expansion airbag 344 through the power tube 63, so that the connecting ring 343 and the upper limiting ring 341 cooperate to clamp the linkage plate 25, realizing the fixation of the positioning post 3; after the workpiece is cooperated with the already fixed positioning post 3 and placed in the receiving groove 21, the next workpiece is placed and the positioning post 3 is fixed according to the same steps until all the positioning posts 3 are fixed, and then the workpiece can be installed and fixed.

[0080] The implementation principle of a triangular milling device for a knitting circular knitting machine center group in an embodiment of the present application is as follows:

[0081] During triangular milling, first, a plurality of workpieces are placed one by one into the receiving groove 21, such that the positioning post 3 passes through the hole grooves provided on the workpieces for bolts and screws to pass through. Then, the power bolt 24 is rotated, such that the first clamping plate 22 and the second clamping plate 23 clamp the workpiece. Then, the control bolt 44 is driven to rotate, such that the control plate 43 squeezes the air storage bag 42, driving the control air bag 41 to expand. At this time, the linkage plate 25 moves away from the receiving groove 21, driving the positioning post 3 to move into the tooling seat 2, such that the transmission post 51 slides on the transmission surface 321, pushing the positioning block 32 to protrude out of the installation groove 31 to restrict the workpiece, realizing the fixation of the workpiece. Finally, the milling device can be started, such that the milling cutter mills the workpiece to complete the processing of the triangle.

[0082] The above are all the preferred embodiments of the present application. Without limiting the protection scope of the present application based on this, therefore: All equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A triangular milling device for the center group of a circular knitting machine, characterized in that: The workbench (1) comprises a workbench (1), on which a tooling seat (2) is slidably arranged, and the workbench (1) is provided with a lifting member (11) for driving the tooling seat (2) to slide up and down; A milling cutter (12) is rotatably arranged on the workbench (1), and a driving member (13) for driving the milling cutter (12) to rotate is arranged on the workbench (1); The tooling seat (2) is provided with a receiving groove (21), and a first clamping plate (22) and a second clamping plate (23) are slidably arranged on the tooling seat (2) and are located in the receiving groove (21), and the first clamping plate (22) and the second clamping plate (23) are perpendicular to each other and are arranged adjacent to each other; The workbench (1) is provided with a power member, and the power member drives the first clamping plate (22) and the second clamping plate (23) to move toward the middle position of the accommodating groove (21); The tooling seat (2) is provided with a positioning column (3) located in the receiving groove (21) for sliding up and down, and the positioning column (3) is provided in plurality and evenly spaced. A plurality of mounting grooves (31) are provided along the circumferential direction on the outer wall of the positioning column (3) and at a position away from the receiving groove (21); the positioning column (3) is provided with a positioning block (32) that slides in the mounting groove (31); A control component (4) is arranged on the tooling seat (2), and the control component (4) controls the positioning column (3) to slide up and down; A transmission assembly (5), wherein when the positioning column (3) slides into the receiving groove (21), the transmission assembly (5) drives the positioning block (32) to slide and protrude out of the installation groove (31); The transmission assembly (5) comprises a transmission column (51) and an elastic rope (52); The elastic rope (52) is arranged in the positioning column (3), and the two ends of the elastic rope (52) are respectively connected to the relative positioning block (32), and the elastic rope (52) drives the relative positioning block (32) to approach each other; The transmission column (51) slides up and down in the positioning column (3), the bottom of the transmission column (51) protrudes out of the positioning column (3), and the positioning block (32) is inclined at a side away from the notch of the installation groove (31) and is provided with a transmission surface (321) facing the transmission column (51); When the positioning column (3) slides downward, the transmission column (51) slides on the transmission surface (321), pushing the relative positioning block (32) away from each other, and at this time, the positioning block (32) protrudes out of the installation groove (31); A linkage plate (25) is provided in the tooling seat (2) to slide up and down, and the positioning column (3) is arranged on the linkage plate (25); The control assembly (4) comprises a control air bag (41), an air storage bag (42), a control panel (43) and a control bolt (44); A connecting column (251) that slides on the tooling seat (2) is provided on the side of the linkage plate (25) away from the positioning column (3), and a connecting block (252) is provided on the outer peripheral side of the connecting column (251) and away from the linkage plate (25), and the connecting block (252) slides up and down on the tooling seat (2); The control airbag (41) is arranged around the connecting column (251), one side outer wall of the control airbag (41) abuts against the connecting block (252), and the side outer wall of the control airbag (41) away from the connecting block (252) abuts against the tooling seat (2); The air storage bag (42) is arranged in the tooling seat (2), and the air storage bag (42) is connected to the control air bag (41); The control plate (43) is slidably connected to the tooling seat (2), the control bolt (44) is threadedly connected to the tooling seat (2), and the control bolt (44) is rotatably connected to a side of the control plate (43) away from the air storage bag (42).

2. A triangular milling device for a center group of a circular knitting machine according to claim 1, characterized in that: The top of the transmission column (51) is provided with a curved surface structure.

3. The triangular milling device for the center group of a circular knitting machine according to claim 1, characterized in that: The positioning column (3) comprises an upper column (33) and a lower column (34), wherein the upper column (33) is located above the lower column (34) and is rotatably connected; The linkage plate (25) is provided with a penetration hole (253) for the lower column (34) to penetrate, and the diameter of the penetration hole (253) is larger than the diameter of the lower column (34); An upper limit ring (341) located above the linkage plate (25) is provided on the outer wall of the lower column (34), and the diameter of the upper limit ring (341) is larger than the diameter of the penetration hole (253); The outer wall at the bottom of the lower column (34) is provided with a lower limiting ring (342); the outer peripheral side wall of the lower column (34) is provided with a connecting ring (343) which slides up and down; the diameter of the connecting ring (343) is larger than the diameter of the through hole (253); the connecting ring (343) is located below the linkage plate (25); An expansion air bag (344) is sleeved on the outer peripheral side of the lower column (34), and the outer wall of the expansion air bag (344) is respectively connected to the connecting ring (343) and the lower limiting ring (342); The positioning column (3) is provided with a clamping assembly (6), and when the upper column (33) and the lower column (34) rotate relative to each other, the clamping assembly (6) drives the expansion airbag (344) to expand until the connecting ring (343) and the upper limit ring (341) clamp the linkage plate (25).

4. A triangular milling device for a center group of a circular knitting machine according to claim 3, characterized in that: The clamping assembly (6) comprises a power block (61), a power airbag (62), a power tube (63), power teeth (64) and a limiting tooth (65); A power column (331) is coaxially arranged at the bottom of the upper column (33), the lower column (34) is provided with a power arc groove (345) surrounding the power column (331), and the power block (61) is arranged on the outer peripheral side of the power column (331) and is slidably connected in the power arc groove (345); The power airbag (62) is arranged in the power arc groove (345), the power tube (63) is passed through the lower column (34), and the power tube (63) connects the power airbag (62) and the expansion airbag (344); When the lower column (34) and the upper column (33) rotate relative to each other, the power block (61) squeezes the power airbag (62); The power teeth (64) are arranged on the outer wall of the power block (61), a plurality of the limiting teeth (65) are evenly arranged on the groove wall of the power arc groove (345), and the power teeth (64) are slidably connected to the limiting teeth (65).

5. The triangular milling device for the center group of a circular knitting machine according to claim 1, characterized in that: The power member is a power bolt (24), and the power bolt (24) is threadedly connected to the tooling seat (2); The power bolt (24) is rotatably connected to the first clamping plate (22) and the second clamping plate (23) in a one-to-one correspondence.

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