Forming die for cold-drawn steel

Abstract

The forming die comprises a machine tool, a supporting frame, a rotating circular plate and a connecting circular plate, the supporting frame is arranged on the top face of the machine tool, a rotating shaft is horizontally arranged on the supporting frame, the rotating circular plate is vertically and rotatably connected to the rotating shaft, and the connecting circular plate is arranged on the rotating shaft. A plurality of connecting openings are formed in the rotating circular plate in the circumferential direction, one connecting circular plate is arranged in each connecting opening, cold broaching holes are formed in the connecting circular plates, and a rotating assembly used for driving the rotating circular plate to rotate is arranged on the machine tool. The cold drawing device has the effects that the production efficiency of cold drawing steel is improved, and the applicable machining range of the cold drawing device is widened.

Description

Technical Field

[0001] The present application relates to the technical field of cold drawing of steel materials, and in particular to a forming die for cold drawing steel. Background Art

[0002] Cold drawing is a process used for workpiece processing, usually in the processing of metals and steel. Under normal temperature conditions, the material is stretched by applying a tensile stress exceeding the yield strength of the raw material to cause plastic deformation. This deformation process can improve the yield strength of the material and save materials. During the cold drawing process, the material will experience a cold drawing strengthening effect, that is, after the tensile stress exceeds the yield strength of the material, it is unloaded and the yield strength of the material is increased to the level when the stress is unloaded.

[0003] At present, cold-drawn steel can be stretched into steel with corresponding cross-sectional shapes according to the shape of the cold-drawn hole on the forming die. Since cold-drawn steel needs to be processed with dies of different shapes according to the different cross-sectional shapes, a cold-drawn hole cross-sectional die of a specific shape can only be used for the production of one type of cold-drawn steel.

[0004] According to the above-mentioned related technologies, if other shapes of cold-drawn steel are to be produced during the production process, corresponding dies need to be installed on the cold-drawing device. The replacement process is complicated and time-consuming, which reduces the processing efficiency of cold-drawn steel. Utility Model Content

[0005] In order to improve the production efficiency of cold-drawn steel and expand the applicable processing range of cold-drawn equipment, the present application provides a forming die for cold-drawn steel.

[0006] The present application provides a forming die for cold drawn steel using the following technical solution:

[0007] A forming die for cold-drawn steel comprises a machine tool, a support frame, a rotating circular plate and a connecting circular plate, wherein the support frame is arranged on the top surface of the machine tool, a rotating shaft is horizontally arranged on the support frame, the rotating circular plate is vertically rotatably connected to the rotating shaft, a plurality of connecting openings are opened on the rotating circular plate along the circumferential direction, and the connecting circular plate is provided with one in each of the connecting openings, a cold-drawing hole is opened on the connecting circular plate, and a rotating component for driving the rotating circular plate to rotate is arranged on the machine tool.

[0008] By adopting the above technical solution, when cold drawing is performed, the rotating circular plate is rotated to a suitable position under the action of the rotating assembly, so that the corresponding cold drawing hole is rotated to the vicinity of the top surface of the machine tool, which is convenient for cold drawing in subsequent operations. Through the mutual cooperation of the machine tool, the support frame, the rotating circular plate, the connecting circular plate and the rotating assembly, the cold drawing die is quickly switched, which has the effect of improving the production efficiency of cold drawn steel and expanding the applicable processing range of the cold drawing device.

[0009] Optionally, a driving through slot is provided on the machine tool, and the edge of the rotating circular plate passes through the machine tool through the driving through slot. The rotating assembly includes a driving motor, a driving gear and a driving gear ring. The driving motor is arranged below the machine tool, and the driving gear is transmission-connected to the driving motor. The driving gear ring is coaxially connected to one side of the rotating circular plate, and the driving gear is meshingly connected to the driving gear ring.

[0010] By adopting the above technical solution, the driving motor drives the driving gear to rotate, and the rotating circular plate rotates under the drive of the driving gear, thereby realizing automatic driving of the rotating circular plate.

[0011] Optionally, the machine tool is provided with a clamping assembly, the clamping assembly includes a mounting block and a clamping plate, the mounting block is arranged below the machine tool, a mounting groove is provided on a side of the mounting block close to the rotating circular plate, the edge of the rotating circular plate extends into the mounting groove, two clamping plates are slidingly arranged in the mounting groove, the two clamping plates are arranged on opposite sides of the rotating circular plate, and a driving member for driving the clamping plate to move is provided on the mounting block.

[0012] By adopting the above technical solution, when the rotating circular plate rotates to a suitable position, the two clamping plates move towards each other under the drive of the driving member until the rotating circular plate is clamped, thereby fixing the rotating circular plate and reducing the possibility of the rotating circular plate rotating during the cold drawing process.

[0013] Optionally, the support frame includes a vertically arranged support column and a top plate connected to the top of the support column, the top plate is located above the rotating circular plate, and a group of the clamping components are arranged on the bottom surface of the top plate.

[0014] By adopting the above technical solution, two groups of clamping components clamp and fix the two ends of the rotating circular plate at the same time, thereby improving the stability of the rotating circular plate during the fixing process.

[0015] Optionally, the connecting circular plate is rotatably arranged in the connecting opening, a connecting ear plate is arranged on the edge of the connecting circular plate, the thickness of the connecting ear plate is less than the thickness of the rotating circular plate, a plurality of push-in blind grooves are arranged on one side of the rotating circular plate, a plurality of the push-in blind grooves correspond one-to-one with a plurality of the connecting openings and are connected, a plurality of rotating slide grooves are arranged inside the rotating circular plate, a plurality of the rotating slide grooves correspond one-to-one with a plurality of connecting openings, and the rotating slide grooves are connected with the bottom ends of the push-in blind grooves and the connecting openings.

[0016] By adopting the above technical solution, when installing the connecting circular plate, the connecting circular plate is first matched with the connecting opening, and the connecting ear plate is pushed into the corresponding push-in blind groove. The connecting circular plate is rotated, and the connecting ear plate slides into the rotating slide groove, thereby realizing a detachable connection between the connecting circular plate and the rotating circular plate, which is convenient for operators to load, unload and repair the connecting circular plate.

[0017] Optionally, a plurality of groups of connecting components are provided on the rotating circular plate, and a plurality of the connecting components are arranged in one-to-one correspondence with a plurality of the connecting openings. The connecting components include a positioning pin, and the positioning pin is slidably inserted on the rotating circular plate. The end of the positioning pin extends into the rotating slide groove, and a positioning hole corresponding to the positioning pin is opened on the connecting ear plate.

[0018] By adopting the above technical solution, when the connecting ear plate rotates into the rotating slide groove, the positioning pin is inserted into the positioning hole in the connecting ear plate through the rotating circular plate, thereby realizing the positioning of the connecting ear plate and reducing the possibility of the connecting circular plate rotating during the cold drawing process.

[0019] Optionally, the connecting assembly also includes a tension spring and a positioning top block, the positioning top block is connected to one end of the positioning pin located outside the rotating circular plate, the tension spring is sleeved on the positioning pin, one end of the tension spring is connected to the positioning top block, and the other end is connected to the rotating circular plate, and the positioning pin is inserted into the positioning hole of the connecting ear plate under the action of the tension spring.

[0020] By adopting the above technical solution, when installing the connecting circular plate, the positioning top block is pulled in the direction away from the rotating circular plate, and when the positioning pin corresponds to the positioning hole, the positioning top block is released, and the positioning pin is ejected into the positioning hole under the action of the tension spring. The tension spring enables the positioning pin to be always inserted in the positioning hole, reducing the possibility of the positioning pin coming out of the positioning hole during the connection process.

[0021] Optionally, a sensor transmitting end is provided on the support frame, and a plurality of sensor receiving ends are connected circumferentially on the rotating circular plate, and the plurality of sensor receiving ends are arranged in a one-to-one correspondence with a plurality of connecting circular plates. When the rotating circular plate rotates to the position where the sensor transmitting end corresponds to the sensor receiving end, the connecting circular plate corresponding to the sensor receiving end rotates to above the machine tool.

[0022] By adopting the above technical solution, when the cold drawing die is replaced, the sensor receiving end rotates with the rotating circular plate. When the corresponding sensor receiving end rotates to the position corresponding to the sensor transmitting end, the sensor receiving end receives the signal, and the driving motor stops driving the rotating circular plate, thereby realizing the precise adjustment of the position of the rotating circular plate.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Through the cooperation of the machine tool, the support frame, the rotating circular plate, the connecting circular plate and the rotating assembly, the rapid switching of the cold drawing die is realized, which has the effect of improving the production efficiency of cold drawn steel and expanding the applicable processing range of the cold drawing device;

[0025] 2. The setting of the connecting assembly realizes the detachable connection between the connecting circular plate and the rotating circular plate, which facilitates the operator to load, unload and repair the connecting circular plate;

[0026] 3. The setting of the sensor transmitting end and the sensor receiving end realizes the precise adjustment of the position of the rotating circular plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of a forming die for cold-drawn steel according to an embodiment of the present application.

[0028] Figure 2 It is a partial cross-sectional view used to illustrate the clamping assembly in the embodiment of the present application.

[0029] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0030] Figure 4 It is a partial cross-sectional view used to illustrate the connection component in the embodiment of the present application.

[0031] Explanation of the reference numerals: 1. machine tool; 101. driving through groove; 2. support frame; 21. support column; 22. top plate; 23. connecting rod; 3. mounting plate; 4. rotating circular plate; 41. connecting opening; 42. push-in blind groove; 43. rotating slide groove; 5. rotating assembly; 51. rotating shaft; 52. driving motor; 53. driving gear; 54. driving gear ring; 6. connecting assembly; 61. positioning pin; 62. tension spring; 63. positioning top block; 7. clamping assembly; 71. mounting block; 711. mounting groove; 72. clamping plate; 73. anti-slip pad; 74. bidirectional screw; 75. clamping motor; 8. connecting circular plate; 81. cold-drawn hole; 82. connecting ear plate; 83. positioning hole; 9. sensor transmitting end; 10. sensor receiving end. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 The present application is further described in detail. The present application provides a forming die for cold-drawn steel, which has the effect of improving the production efficiency of cold-drawn steel and expanding the applicable processing range of the cold-drawing device.

[0033] Reference Figure 1-3 A forming die for cold-drawn steel includes a machine tool 1, a support frame 2, a rotating circular plate 4, a rotating assembly 5, a connecting assembly 6 and a clamping assembly 7. The support frame 2 is arranged on the top surface of the machine tool 1, and the support frame 2 includes a support column 21, a top plate 22 and a connecting rod 23. A plurality of support columns 21 are vertically fixedly connected on the top surface of the machine tool 1, and the top plate 22 is horizontally fixedly connected to the top of the support column 21. Two connecting rods 23 are provided, and the connecting rods 23 are horizontally fixedly connected between two corresponding support columns 21 along the width direction of the top plate 22. The rotating circular plate 4 is vertically arranged between the top plate 22 and the machine tool 1, and the rotating circular plate 4 can be rotated between the top plate 22 and the machine tool 1 through the rotating assembly 5.

[0034] Reference Figure 2 and Figure 3 The rotating assembly 5 includes a rotating shaft 51, a driving motor 52, a driving gear 53 and a driving ring gear 54. The rotating shaft 51 is fixedly connected between the two connecting rods 23 along the length direction of the top plate 22, and the rotating circular plate 4 is vertically rotatably sleeved on the rotating shaft 51 and is coaxially arranged therewith. A driving through groove 101 is provided on the machine tool 1, and the edge of the rotating circular plate 4 extends to the bottom of the machine tool 1 through the driving through groove 101. The driving motor 52 is connected to the bottom surface of the machine tool 1, and the output shaft of the driving motor 52 is horizontally arranged and transmission-connected with the driving gear 53. The driving ring gear 54 is coaxially fixedly connected to the side of the rotating circular plate 4 close to the driving motor 52, and the driving gear 53 is meshingly connected with the driving ring gear 54.

[0035] Reference Figure 2 and Figure 3A group of clamping components 7 are provided under the machine tool 1 and on the bottom surface of the top plate 22, and the clamping components 7 include a mounting block 71, a clamping plate 72, an anti-skid pad 73, a bidirectional screw 74 and a clamping motor 75. The mounting block 71 in the clamping component 7 located under the machine tool 1 is fixedly connected to the bottom surface of the machine tool 1. A mounting groove 711 is provided on the side of the mounting block 71 close to the rotating circular plate 4, and the edge of the rotating circular plate 4 extends into the mounting groove 711. Two clamping plates 72 are provided in parallel and sliding in the mounting groove 711, and one side of the clamping plate 72 is slidably fitted with the inner bottom wall of the mounting groove 711. The two clamping plates 72 are arranged on opposite sides of the rotating circular plate 4 and are arranged parallel to the rotating circular plate 4, and an anti-skid pad 73 is provided on each side of the two clamping plates 72 close to each other. The clamping motor 75 is connected to the mounting block 71, and the bidirectional screw rod 74 is rotatably arranged on the mounting block 71, and one end of the bidirectional screw rod 74 is drivingly connected to the output shaft of the clamping motor 75. A portion of the bidirectional screw rod 74 is located in the mounting groove 711, and two threaded sections with opposite rotation directions are arranged on the bidirectional screw rod 74, and the two threaded sections are arranged one by one corresponding to the two clamping plates 72 and are threadedly connected.

[0036] Reference Figure 2-4 A plurality of connecting openings 41 are provided on the rotating circular plate 4 at equal angular intervals along the circumferential direction, and a connecting circular plate 8 is provided in each connecting opening 41. The thickness of the connecting circular plate 8 is equal to that of the rotating circular plate 4, and a cold-drawn hole 81 with a specific shape is provided on each connecting circular plate 8. A connecting ear plate 82 is fixedly connected to the edge of the connecting circular plate 8, and the thickness of the connecting ear plate 82 is less than the thickness of the connecting circular plate 8. A push-in blind groove 42 corresponding to the shape of the connecting ear plate 82 is provided on one side of the rotating circular plate 4, and the push-in blind groove 42 is connected to the connecting opening 41. A rotating slide groove 43 is provided inside the rotating circular plate 4, and the rotating slide groove 43 is connected to the bottom end of the push-in blind groove 42 and the connecting opening 41 at the same time.

[0037] Reference Figure 3 and Figure 4 , the connecting assembly 6 is arranged on the rotating circular plate 4, and the connecting assembly 6 includes a positioning pin 61, a tension spring 62 and a positioning top block 63. The positioning pin 61 is slidably inserted into the rotating circular plate 4, one end of the positioning pin 61 extends into the rotating slide groove 43, and the positioning top block 63 is fixedly connected to one end of the positioning pin 61 located outside the rotating circular plate 4. The tension spring 62 is sleeved on the positioning pin 61, one end of the tension spring 62 is fixedly connected to the positioning top block 63, and the other end is fixedly connected to the rotating circular plate 4. A positioning hole 83 corresponding to the positioning pin 61 is opened on the connecting ear plate 82. When the connecting ear plate 82 rotates into the rotating slide groove 43, the end of the positioning pin 61 is inserted into the positioning hole 83 under the action of the tension spring 62.

[0038] Reference Figure 2 and Figure 3, a sensor transmitting end 9 is provided on one side of a connecting rod 23 close to the rotating circular plate 4, and a plurality of sensor receiving ends 10 are connected to the side of the rotating circular plate 4 close to the sensor receiving end 10. The plurality of sensor receiving ends 10 correspond to the plurality of connecting circular plates 8 one by one, and when the sensor transmitting end 9 corresponds to one of the sensor receiving ends 10, the connecting circular plate 8 corresponding to the sensor receiving end 10 moves to the vicinity of the top surface of the machine tool 1. The sensor transmitting end 9 and the sensor receiving end 10 are electrically connected to the clamping assembly 7 and the rotating assembly 5 at the same time.

[0039] Reference Figure 3 and Figure 4 Before cold drawing, a plurality of commonly used connecting circular plates 8 are connected to the rotating circular plate 4 through the connecting assembly 6, and a cold drawing hole 81 of a desired shape is opened on the connecting circular plate 8. When installing the connecting circular plate 8, the connecting circular plate 8 is aligned with the connecting opening 41, and the connecting ear plate 82 is pressed into the corresponding push-in blind groove 42. The connecting circular plate 8 is rotated, and the connecting ear plate 82 is rotated and inserted into the rotating slide groove 43. The positioning top block 63 is pulled in the direction away from the rotating circular plate 4. When the positioning pin 61 corresponds to the position of the positioning hole 83, the positioning top block 63 is released, and the positioning pin 61 is ejected into the positioning hole 83 under the action of the tension spring 62, so as to realize the positioning of the connecting ear plate 82, and reduce the possibility of the connecting circular plate 8 rotating in the connecting opening 41 during the cold drawing process. The setting of the tension spring 62 enables the positioning pin 61 to be always inserted in the positioning hole 83 during the positioning process, thereby improving the stability of the connection process. The setting of the connecting assembly 6 realizes the detachable connection between the connecting circular plate 8 and the rotating circular plate 4. The operator can install the commonly used connecting circular plate 8 on the rotating circular plate 4 as needed, and it also facilitates the loading, unloading and maintenance of the connecting circular plate 8.

[0040] Reference Figure 2 and Figure 3 , the connecting circular plate 8 with the cold-drawn hole 81 of the desired shape is located near the top surface of the machine tool 1, and the raw material is cold-drawn through the cold-drawn hole 81 under the action of the driving device (not shown in the figure). When the mold needs to be replaced, the driving motor 52 starts to drive the driving gear 53 to rotate, and the driving gear ring 54 and the rotating circular plate 4 rotate under the drive of the driving gear 53. When the corresponding sensor receiving end 10 rotates with the rotating circular plate 4 to correspond to the sensor transmitting end 9, the sensor receiving end 10 receives the signal from the sensor transmitting end 9, and the control system receives the signal and stops the driving motor 52 from operating, and stops driving the rotating circular plate 4.

[0041] Reference Figure 2 and Figure 3At the same time, the clamping motor 75 starts to drive the bidirectional screw 74 to rotate, and the two clamping plates 72 move toward each other under the driving of the bidirectional screw 74 and the limiting guidance of the inner wall of the installation groove 711. The two clamping plates 72 clamp the rotating circular plate 4, reducing the possibility of the rotating circular plate 4 rotating during the cold drawing process. The provision of the anti-slip pad 73 increases the friction between the clamping plate 72 and the rotating circular plate 4, and the provision of the two sets of clamping components 7 increases the structural stability of the clamping process.

[0042] The implementation principle of a forming die for cold-drawn steel in the embodiment of the present application is as follows: before cold-drawing, a plurality of commonly used connecting circular plates 8 are connected to the rotating circular plate 4 through a connecting assembly 6, and a cold-drawing hole 81 of a desired shape is opened on the connecting circular plate 8. The setting of the connecting assembly 6 realizes a detachable connection between the connecting circular plate 8 and the rotating circular plate 4, and the operator can install the commonly used connecting circular plate 8 on the rotating circular plate 4 as needed.

[0043] When the mold needs to be replaced, the driving motor 52 drives the rotating circular plate 4 to rotate. When the corresponding sensor receiving end 10 rotates with the rotating circular plate 4 to correspond to the sensor transmitting end 9, the driving motor 52 stops operating and stops driving the rotating circular plate 4. At the same time, the clamping motor 75 is started, and the two clamping plates 72 move toward each other, and the two clamping plates 72 clamp the rotating circular plate 4, reducing the possibility of the rotating circular plate 4 rotating during the cold drawing process.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A forming die for cold drawn steel, characterized in that: The invention comprises a machine tool (1), a support frame (2), a rotating circular plate (4) and a connecting circular plate (8), wherein the support frame (2) is arranged on the top surface of the machine tool (1), a rotating shaft (51) is horizontally arranged on the support frame (2), the rotating circular plate (4) is vertically rotatably connected to the rotating shaft (51), a plurality of connecting openings (41) are opened on the rotating circular plate (4) along the circumferential direction, one connecting circular plate (8) is arranged in each of the connecting openings (41), a cold drawing hole (81) is opened on the connecting circular plate (8), and a rotating component (5) for driving the rotating circular plate (4) to rotate is arranged on the machine tool (1).

2. A forming die for cold drawn steel according to claim 1, characterized in that: The machine tool (1) is provided with a driving slot (101), and the edge of the rotating circular plate (4) passes through the machine tool (1) through the driving slot (101). The rotating assembly (5) comprises a driving motor (52), a driving gear (53) and a driving ring gear (54). The driving motor (52) is arranged below the machine tool (1), the driving gear (53) is drivingly connected to the driving motor (52), the driving ring gear (54) is coaxially connected to one side of the rotating circular plate (4), and the driving gear (53) is meshingly connected to the driving ring gear (54).

3. A forming die for cold drawn steel according to claim 1, characterized in that: The machine tool (1) is provided with a clamping assembly (7), the clamping assembly (7) comprising a mounting block (71) and a clamping plate (72), the mounting block (71) being arranged below the machine tool (1), a mounting groove (711) being provided on a side of the mounting block (71) close to the rotating circular plate (4), an edge of the rotating circular plate (4) extending into the mounting groove (711), two clamping plates (72) being slidably arranged in the mounting groove (711), the two clamping plates (72) being arranged on opposite sides of the rotating circular plate (4), and a driving member for driving the clamping plates (72) to move being arranged on the mounting block (71).

4. A forming die for cold drawn steel according to claim 3, characterized in that: The support frame (2) comprises a vertically arranged support column (21) and a top plate (22) connected to the top of the support column (21); the top plate (22) is located above the rotating circular plate (4); and a group of the clamping components (7) are arranged on the bottom surface of the top plate (22).

5. The forming die for cold drawn steel according to claim 1, characterized in that: The connecting circular plate (8) is rotatably arranged in the connecting opening (41); a connecting ear plate (82) is arranged on the edge of the connecting circular plate (8); the thickness of the connecting ear plate (82) is smaller than the thickness of the rotating circular plate (4); a plurality of push-in blind grooves (42) are arranged on one side of the rotating circular plate (4); the plurality of push-in blind grooves (42) correspond to and are connected with the plurality of connecting openings (41); a plurality of rotating slide grooves (43) are arranged inside the rotating circular plate (4); the plurality of rotating slide grooves (43) correspond to the plurality of connecting openings (41) in a one-to-one manner; the rotating slide grooves (43) are connected with the bottom ends of the push-in blind grooves (42) and the connecting opening (41).

6. A forming die for cold drawn steel according to claim 5, characterized in that: A plurality of connection components (6) are arranged on the rotating circular plate (4), and the plurality of connection components (6) are arranged in one-to-one correspondence with the plurality of connection openings (41). The connection components (6) include a positioning pin (61), and the positioning pin (61) is slidably inserted on the rotating circular plate (4). The end of the positioning pin (61) extends into the rotating sliding groove (43), and a positioning hole (83) corresponding to the positioning pin (61) is opened on the connecting ear plate (82).

7. A forming die for cold drawn steel according to claim 6, characterized in that: The connecting assembly (6) further comprises a tension spring (62) and a positioning top block (63), wherein the positioning top block (63) is connected to one end of the positioning pin (61) located outside the rotating circular plate (4), the tension spring (62) is sleeved on the positioning pin (61), one end of the tension spring (62) is connected to the positioning top block (63), and the other end is connected to the rotating circular plate (4), and the positioning pin (61) is inserted into the positioning hole (83) of the connecting ear plate (82) under the action of the tension spring (62).

8. A forming die for cold drawn steel according to claim 1, characterized in that: The support frame (2) is provided with a sensor transmitting end (9), and the rotating circular plate (4) is connected with a plurality of sensor receiving ends (10) along the circumferential direction. The plurality of sensor receiving ends (10) are arranged in a one-to-one correspondence with the plurality of connecting circular plates (8). When the rotating circular plate (4) rotates to a position where the sensor transmitting end (9) corresponds to the sensor receiving end (10), the connecting circular plate (8) corresponding to the sensor receiving end (10) rotates to the top of the machine tool (1).

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