Cylindrical workpiece hole extruding machine

Abstract

The utility model belongs to the field of workpiece hole extruding machining, and particularly relates to a cylindrical workpiece hole extruding machine which comprises a rack, an axial power mechanism, a remodeling adjusting mechanism and a clamping tool. The axial power mechanism is arranged on the rack, and an execution part of the axial power mechanism is provided with a punch; the model changing adjusting mechanism comprises a linear adjusting limiting assembly and a sliding rail. The clamping tool comprises a first clamp fixedly arranged on the rack, a second clamp arranged on the sliding rail in a sliding mode and a sliding positioning seat arranged on the sliding rail in a sliding mode, and the sliding positioning seat is connected with the execution part of the linear adjustment limiting assembly and the first clamp. The linear adjusting limiting assembly pushes the second clamp and the sliding positioning seat to move along the sliding rail so as to adjust the distance between the first clamp and the second clamp in a stepless mode, one end of the cylindrical workpiece can penetrate through the positioning hole to abut against the linear adjusting limiting assembly, and the second clamp and the sliding positioning seat can move to any position of the sliding rail. Therefore, cylindrical workpieces with more length specifications can be adapted.

Description

Technical Field

[0001] This application belongs to the field of workpiece extrusion processing, specifically relating to an extrusion machine for cylindrical workpieces. Background Technology

[0002] In the machining of cylindrical workpieces such as studs, a hole extrusion machine is needed to machine hexagonal holes at the ends. A typical hole extrusion machine consists of a frame, an axial power mechanism (powered by a hydraulic cylinder or electric cylinder), a clamping fixture for fixing the workpiece, a shape-changing and adjusting mechanism, and a punch for forming hexagonal holes.

[0003] Existing extrusion machines, when processing workpieces of different lengths, mostly have a limited changeover mechanism that is only compatible with a few fixed lengths. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide a cylindrical workpiece extrusion machine with an optimized shape-changing adjustment mechanism, which can adapt to cylindrical workpieces of more length specifications.

[0005] This application provides a cylindrical workpiece extrusion machine, comprising:

[0006] frame;

[0007] An axial power mechanism is mounted on the frame, and the actuator of the axial power mechanism is equipped with a punch;

[0008] The type-changing adjustment mechanism includes a linear adjustment limiting component disposed on the frame opposite to the axial power mechanism, and a slide rail disposed between the axial power mechanism and the linear adjustment limiting component;

[0009] The clamping fixture includes a first clamp fixedly mounted on the frame, a second clamp slidably mounted on the slide rail, and a sliding positioning seat slidably mounted on the slide rail. The sliding positioning seat is connected to the actuator of the linear adjustment limit assembly and the first clamp. The sliding positioning seat has a positioning hole for engaging the end of a cylindrical workpiece. The plurality of clamps are used to clamp and fix the cylindrical workpiece.

[0010] Optionally, the linear adjustment limiting assembly includes a changing support fixedly mounted on the frame, a limiting rod threaded through the changing support, and a fastening nut threaded to the limiting rod. One end of the limiting rod is connected to the sliding positioning seat and aligned with the positioning hole.

[0011] Optionally, the replacement support includes a support body and a fixing nut disposed on one side of the support body opposite to the fastening nut, and the limiting top rod is screwed to the fixing nut.

[0012] Optionally, the fastening nut may be provided with a plurality of auxiliary handles on its peripheral wall.

[0013] Optionally, the clamping fixture further includes multiple support frames respectively disposed on the first fixture and the second fixture for transferring and placing the cylindrical workpiece after extrusion.

[0014] Optionally, the support frame has an outwardly extending and downwardly inclined surface and an upwardly blocking surface.

[0015] Optionally, the first clamp includes a fixed seat disposed on the frame, a first positioning seat disposed on the fixed seat, a first V-groove seat disposed on the first positioning seat, and a first pressing assembly disposed on the fixed seat. The first V-groove seat is used to position the cylindrical workpiece, and the first pressing assembly cooperates with the first V-groove seat to clamp one end of the cylindrical workpiece.

[0016] Optionally, the second clamp includes a sliding seat slidably disposed on the slide rail, a second positioning seat disposed on the sliding seat, a second V-groove seat disposed on the second positioning seat, and a second pressing assembly disposed on the sliding seat. The second V-groove seat is used to position the cylindrical workpiece, and the second pressing assembly cooperates with the second V-groove seat to clamp one end of the cylindrical workpiece.

[0017] Optionally, the first positioning seat has at least two first waist holes, and the first positioning seat is fixedly connected to the fixing seat by bolts passing through the first waist holes. The first V-groove seat and the first positioning seat are connected by a concave-convex structure and fixedly connected by screws.

[0018] Optionally, the second positioning seat has at least two second waist holes, the second positioning seat is fixedly connected to the sliding seat by bolts passing through the second waist holes, and the second V-groove seat and the second positioning seat are connected by a concave-convex structure and fixedly connected by screws.

[0019] Optionally, the first pressing assembly includes a first bracket disposed on the fixed base and a first linear telescoping device disposed on the first bracket. The actuating part of the first linear telescoping device is provided with a first pressure head. The first linear telescoping device drives the first pressure head to approach or move away from the first V-groove seat to clamp or release the cylindrical workpiece.

[0020] Optionally, the second pressing assembly includes a second bracket disposed on the sliding seat and a second linear telescoping device disposed on the second bracket. The actuating part of the second linear telescoping device is provided with a second pressure head. The second linear telescoping device drives the second pressure head to approach or move away from the second V-groove seat to clamp or release the cylindrical workpiece.

[0021] Optionally, a blocking and limiting member is provided on one side of the fixed base to prevent the actuator of the axial power mechanism from continuing to advance.

[0022] Optionally, a limiting plate is sleeved on the actuator of the axial power mechanism, and a displacement sensor that cooperates with the limiting plate is provided on the fixing part of the axial power mechanism to provide feedback on the forward distance of the actuator of the axial power mechanism.

[0023] The beneficial effect of this application is that the cylindrical workpiece extrusion machine provided by this application pushes the second clamp and the sliding positioning seat to move along the slide rail through the linear adjustment limiting component, so as to steplessly adjust the distance between the first clamp and the second clamp, so that one end of the cylindrical workpiece passes through the positioning hole and abuts against the linear adjustment limiting component, and the second clamp and the sliding positioning seat can be moved to any position on the slide rail, thus being able to adapt to cylindrical workpieces of more length specifications. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the extrusion machine for cylindrical workpieces provided in the embodiments of this application;

[0025] Figure 2 for Figure 1 Enlarged view of area A in the image;

[0026] Figure 3 for Figure 1 Enlarged view of area B in the image;

[0027] Figure 4 This is a schematic diagram of the support frame provided in an embodiment of this application.

[0028] In the diagram: 100, frame; 200, axial power mechanism; 210, actuator; 220, punch; 230, limit plate; 310, linear adjustment limit assembly; 311, change-of-type support; 3111, support body; 3112, fixing nut; 312, limit rod; 313, fastening nut; 314, auxiliary handle; 320, slide rail; 410, first clamp; 411, fixed seat; 412, first positioning seat; 4121, first waist hole; 413, first V-groove seat; 414, first pressing assembly; 4141, First bracket; 4142, First linear telescoping device; 4143, First pressure head; 415, Blocking and limiting component; 420, Second clamp; 421, Sliding seat; 422, Second positioning seat; 4221, Second waist hole; 423, Second V-groove seat; 424, Second pressing assembly; 4241, Second bracket; 4242, Second linear telescoping device; 4243, Second pressure head; 430, Sliding positioning seat; 440, Support frame; 441, Inclined surface; 442, Blocking surface; 500, Displacement sensor. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] like Figure 1-3 As shown, this application provides a cylindrical workpiece extrusion machine, comprising: a frame 100, an axial power mechanism 200, a shape-changing adjustment mechanism, and a clamping fixture; wherein, the axial power mechanism 200 is mounted on the frame 100, and the actuator 210 of the axial power mechanism 200 is provided with a punch 220; the shape-changing adjustment mechanism includes a linear adjustment limit assembly 310 mounted on the frame 100 opposite to the axial power mechanism 200, and a slide rail 320 mounted between the axial power mechanism 200 and the linear adjustment limit assembly 310; the clamping fixture includes a first clamp 410 fixedly mounted on the frame 100, a second clamp 420 slidably mounted on the slide rail 320, and a sliding positioning seat 430 slidably mounted on the slide rail 320, the sliding positioning seat 430 being connected to the actuator 210 of the linear adjustment limit assembly 310 and the first clamp 410, the sliding positioning seat 430 having a positioning hole for engaging the end of the cylindrical workpiece, and multiple clamps for clamping and fixing the cylindrical workpiece.

[0031] Compared with the prior art, the cylindrical workpiece extrusion machine provided in this application pushes the second clamp 420 and the sliding positioning seat 430 to move along the slide rail 320 through the linear adjustment limiting component 310, so as to steplessly adjust the distance between the first clamp 410 and the second clamp 420, so that one end of the cylindrical workpiece passes through the positioning hole and abuts against the linear adjustment limiting component 310, and the second clamp 420 and the sliding positioning seat 430 can move to any position of the slide rail 320, thus being able to adapt to cylindrical workpieces of more length specifications.

[0032] In one possible implementation, the linear adjustment limiting assembly 310 includes a changing support 311 fixedly mounted on the frame 100, a limiting rod 312 threaded through the changing support 311, and a fastening nut 313 threaded to the limiting rod 312. One end of the limiting rod 312 is connected to the sliding positioning seat 430 and aligned with the positioning hole. Specifically, by rotating the limiting rod 312, it moves linearly relative to the changing support 311, causing the sliding positioning seat 430 and the second clamp 420 to move along the slide rail 320 to a position matching the cylindrical workpiece. Then, the fastening nut 313 is rotated to fit against the changing support 311, thereby fastening the limiting rod 312 and fixing the sliding positioning seat 430 and the second clamp 420.

[0033] In one possible implementation, the changeover support 311 includes a support body 3111, a fixing nut 3112 disposed on one side of the support body 3111 opposite to the fastening nut 313, and a limiting rod 312 screwed to the fixing nut 3112. Specifically, the support body 3111 only needs to have a through hole instead of a screw hole. The limiting rod 312 is screwed to the fixing nut 3112. Rotating the limiting rod 312 drives the sliding positioning seat 430 and the second clamp 420 to move along the slide rail 320 to a position that matches the cylindrical workpiece. The fixing nut 3112 is smaller, reducing the processing difficulty. Moreover, when assembling the changeover support 311 and the limiting rod 312, the limiting rod 312 can be first inserted into the through hole of the support body 3111 for positioning and to support the limiting rod 312, reducing the assembly difficulty.

[0034] In one possible implementation, a plurality of auxiliary handles 314 are provided on the peripheral wall of the fastening nut 313. Specifically, the auxiliary handles 314 are in the shape of round bars and are fixed to the peripheral wall of the fastening nut 313 by welding or screwing, making it easier to turn the fastening nut 313.

[0035] In one possible implementation, such as Figure 2 and Figure 3 As shown, the clamping fixture also includes multiple support frames 440 respectively disposed on the first fixture 410 and the second fixture 420 for transferring and placing the cylindrical workpiece after extrusion. Specifically, the support frames 440 are fixedly connected to the first fixture 410 and the second fixture 420 by screws. A conveyor belt on the production line is set on one side of the cylindrical workpiece extrusion machine, transporting the cylindrical workpiece to be extruded. The cylindrical workpiece to be extruded is first placed on the support frame 440, and then the cylindrical workpiece that has been extruded on the cylindrical workpiece extrusion machine is placed on the conveyor belt and transferred to the subsequent process. Then, the cylindrical workpiece to be extruded is loaded onto the cylindrical workpiece extrusion machine for extrusion processing. This process is repeated continuously, reducing the time spent on transferring and stacking cylindrical workpieces, which helps to improve production efficiency.

[0036] In one possible implementation, such as Figure 4 As shown, the support frame 440 has an inclined surface 441 extending outward and downward toward the frame 100 and an upward blocking surface 442. Specifically, when a cylindrical workpiece is placed on the support frame 440, it will slide down along the inclined surface 441 to the blocking surface 442, preventing the cylindrical workpiece from falling, and it will land near the outside of the frame 100, making it easier to remove.

[0037] In one possible implementation, such as Figure 2As shown, the first clamp 410 includes a fixed seat 411 mounted on the frame 100, a first positioning seat 412 mounted on the fixed seat 411, a first V-groove seat 413 mounted on the first positioning seat 412, and a first pressing assembly 414 mounted on the fixed seat 411. The first V-groove seat 413 is used to position the cylindrical workpiece, and the first pressing assembly 414 cooperates with the first V-groove seat 413 to clamp one end of the cylindrical workpiece. Specifically, the fixed seat 411 is located near the axial power mechanism 200 and is fixed to the top of the frame 100 by bolts. The first positioning seat 412 is fixed to the top of the fixed seat 411 by bolts, and the first V-groove seat 413 is fixed to the top of the first positioning seat 412 by bolts. The first positioning seat 412 and the first V-groove seat 413 are separate and detachable, which facilitates the replacement of the model of the first V-groove seat 413 according to the diameter of the cylindrical workpiece.

[0038] In one possible implementation, the second clamp 420 includes a sliding seat 421 slidably disposed on the slide rail 320, a second positioning seat 422 disposed on the sliding seat 421, a second V-groove seat 423 disposed on the second positioning seat 422, and a second pressing assembly 424 disposed on the sliding seat 421. The second V-groove seat 423 is used to position the cylindrical workpiece, and the second pressing assembly 424 cooperates with the second V-groove seat 423 to clamp one end of the cylindrical workpiece. Specifically, the sliding seat 421 is close to the linear adjustment limit assembly 310 and fixed to the top of the frame 100 by bolts. The second positioning seat 422 is fixed to the top of the fixed seat 411 by bolts. The second V-groove seat 423 is fixed to the top of the second positioning seat 422 by bolts. The second positioning seat 422 and the second V-groove seat 423 are separate and detachable, which facilitates the replacement of the model of the second V-groove seat 423 according to the diameter of the cylindrical workpiece. The second V-groove seat 423 matches the first V-groove seat 413 to jointly support and position the cylindrical workpiece.

[0039] In one possible implementation, the first positioning seat 412 has at least two first waist holes 4121. The first positioning seat 412 is fixedly connected to the fixed seat 411 by bolts passing through the first waist holes 4121. The first V-groove seat 413 is connected to the first positioning seat 412 by a concave-convex structure and a screw. Specifically, the first positioning seat 412 can be adjusted laterally through the two first waist holes 4121 so that the center of the first V-groove seat 413 is on the same plane as the axis of the punch 220, which helps to improve the accuracy of the extrusion process.

[0040] In one possible implementation, the second positioning seat 422 has at least two second waist holes 4221. The second positioning seat 422 is fixedly connected to the sliding seat 421 by bolts passing through the second waist holes 4221. The second V-groove seat 423 is connected to the second positioning seat 422 by a concave-convex structure and a screw. Specifically, the second positioning seat 422 can be adjusted laterally through the two second waist holes 4221 so that the center of the second V-groove seat 423 is on the same plane as the axis of the punch 220, which helps to improve the accuracy of the extrusion process.

[0041] In one possible implementation, the first pressing assembly 414 includes a first bracket 4141 disposed on a fixed base 411 and a first linear telescoping device 4142 disposed on the first bracket 4141. The actuating part 210 of the first linear telescoping device 4142 is provided with a first pressure head 4143. The first linear telescoping device 4142 drives the first pressure head 4143 to approach or move away from the first V-groove seat 413 to clamp or release the cylindrical workpiece. Specifically, the first bracket 4141 is fixed to both sides of the fixed base 411 by bolts. The first linear telescoping device 4142 is mounted on the first bracket 4141 and located above the first V-groove seat 413. When a cylindrical workpiece is placed on the first V-groove seat 413, the first linear telescoping device 4142 drives the first pressure head 4143 to approach the first V-groove seat 413 to clamp the cylindrical workpiece. After the extrusion hole is completed, the first pressure head 4143 is driven away from the first V-groove seat 413 to release the cylindrical workpiece.

[0042] In some possible implementations, the first linear telescoping element 4142 can be an electric cylinder or a hydraulic cylinder.

[0043] In one possible implementation, the second pressing assembly 424 includes a second bracket 4241 disposed on the sliding seat 421 and a second linear telescoping device 4242 disposed on the second bracket 4241. The actuating part 210 of the second linear telescoping device 4242 is provided with a second pressure head 4243. The second linear telescoping device 4242 drives the second pressure head 4243 to approach or move away from the second V-groove seat 423 to clamp or release the cylindrical workpiece. Specifically, the second bracket 4241 is fixed to both sides of the sliding seat 421 by bolts. The second linear telescoping device 4242 is mounted on the second bracket 4241 and located above the second V-groove seat 423. When a cylindrical workpiece is placed on the second V-groove seat 423, the second linear telescoping device 4242 drives the second pressure head 4243 to approach the second V-groove seat 423 to clamp the cylindrical workpiece. After the extrusion hole is completed, the second pressure head 4243 is driven away from the second V-groove seat 423 to release the cylindrical workpiece.

[0044] In some possible implementations, the second linear telescoping member 4242 can be an electric cylinder or a hydraulic cylinder.

[0045] In one possible implementation, a blocking limiter 415 is provided on one side of the fixed base 411 to prevent the actuator 210 of the axial power mechanism 200 from continuing to advance. In this way, excessive advance of the actuator 210 of the axial power mechanism 200 can be avoided, which could damage the punch 220.

[0046] In one possible implementation, a limiting plate 230 is fitted onto the actuator 210 of the axial power mechanism 200, and a displacement sensor 500, which cooperates with the limiting plate 230, is provided on the fixing part of the axial power mechanism 200 to provide feedback on the forward distance of the actuator 210. Thus, the extrusion depth is adjusted by sensing the distance of the limiting plate 230 through the displacement sensor 500.

[0047] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0048] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A punching machine for cylindrical workpieces, characterized in that, include: Rack (100); An axial power mechanism (200) is mounted on the frame (100), and the actuator (210) of the axial power mechanism (200) is provided with a punch (220). The type-changing adjustment mechanism includes a linear adjustment limit assembly (310) disposed on the frame (100) opposite to the axial power mechanism (200) and a slide rail (320) disposed between the axial power mechanism (200) and the linear adjustment limit assembly (310). The clamping fixture includes a first clamp (410) fixedly mounted on the frame (100), a second clamp (420) slidably mounted on the slide rail (320), and a sliding positioning seat (430) slidably mounted on the slide rail (320). The sliding positioning seat (430) is connected to the actuator (210) of the linear adjustment limit assembly (310) and the first clamp (410). The sliding positioning seat (430) has a positioning hole for docking with the end of the cylindrical workpiece. The multiple clamps are used to clamp and fix the cylindrical workpiece.

2. The cylindrical workpiece extrusion machine according to claim 1, characterized in that, The linear adjustment limiting assembly (310) includes a change-up support (311) fixedly mounted on the frame (100), a limiting top rod (312) threaded through the change-up support (311), and a fastening nut (313) threaded to the limiting top rod (312). One end of the limiting top rod (312) is connected to the sliding positioning seat (430) and aligned with the positioning hole.

3. The cylindrical workpiece extrusion machine according to claim 2, characterized in that, The replacement support (311) includes a support body (3111) and a fixing nut (3112) disposed on one side of the support body (3111) opposite to the fastening nut (313). The limiting top rod (312) is screwed to the fixing nut (3112).

4. The cylindrical workpiece extrusion machine according to claim 3, characterized in that, The fastening nut (313) has multiple auxiliary handles (314) on its peripheral wall.

5. The cylindrical workpiece extrusion machine according to any one of claims 1-4, characterized in that, The clamping fixture also includes multiple support frames (440) respectively disposed on the first fixture (410) and the second fixture (420) for transferring and placing the cylindrical workpiece after extrusion.

6. The cylindrical workpiece extrusion machine according to claim 5, characterized in that, The support frame (440) has an inclined surface (441) extending outward and downward toward the frame (100) and an upward blocking surface (442).

7. The cylindrical workpiece extrusion machine according to any one of claims 1-4, characterized in that, The first clamp (410) includes a fixed seat (411) disposed on the frame (100), a first positioning seat (412) disposed on the fixed seat (411), a first V-groove seat (413) disposed on the first positioning seat (412), and a first pressing assembly (414) disposed on the fixed seat (411). The first V-groove seat (413) is used to position a cylindrical workpiece, and the first pressing assembly (414) cooperates with the first V-groove seat (413) to clamp one end of the cylindrical workpiece. And / or, the second clamp (420) includes a sliding seat (421) slidably disposed on the slide rail (320), a second positioning seat (422) disposed on the sliding seat (421), a second V-groove seat (423) disposed on the second positioning seat (422), and a second pressing assembly (424) disposed on the sliding seat (421). The second V-groove seat (423) is used to position the cylindrical workpiece, and the second pressing assembly (424) cooperates with the second V-groove seat (423) to clamp one end of the cylindrical workpiece.

8. The cylindrical workpiece extrusion machine according to claim 7, characterized in that, The first positioning seat (412) has at least two first waist holes (4121). The first positioning seat (412) is fixedly connected to the fixing seat (411) by bolts passing through the first waist holes (4121). The first V-groove seat (413) and the first positioning seat (412) are connected by a concave-convex structure and fixedly connected by screws. And / or, the second positioning seat (422) has at least two second waist holes (4221), the second positioning seat (422) is fixedly connected to the sliding seat (421) by bolts passing through the second waist holes (4221), and the second V-groove seat (423) is connected to the second positioning seat (422) by a concave-convex structure and by screws.

9. The cylindrical workpiece extrusion machine according to claim 8, characterized in that, The first pressing assembly (414) includes a first bracket (4141) disposed on the fixed base (411) and a first linear telescoping device (4142) disposed on the first bracket (4141). The actuator (210) of the first linear telescoping device (4142) is provided with a first pressure head (4143). The first linear telescoping device (4142) drives the first pressure head (4143) to approach or move away from the first V-groove seat (413) to clamp or release the cylindrical workpiece. And / or, the second pressing assembly (424) includes a second bracket (4241) disposed on the sliding seat (421) and a second linear telescoping device (4242) disposed on the second bracket (4241). The actuator (210) of the second linear telescoping device (4242) is provided with a second pressure head (4243). The second linear telescoping device (4242) drives the second pressure head (4243) to approach or move away from the second V-groove seat (423) to clamp or release the cylindrical workpiece. And / or, a blocking limit member (415) is provided on one side of the fixed seat (411) to block the actuator (210) of the axial power mechanism (200) from continuing to advance.

10. The cylindrical workpiece extrusion machine according to any one of claims 1-4, 6, 8, and 9, characterized in that, A limiting plate (230) is sleeved on the actuator (210) of the axial power mechanism (200), and a displacement sensor (500) that cooperates with the limiting plate (230) is provided on the fixing part of the axial power mechanism (200) to provide feedback on the forward distance of the actuator (210) of the axial power mechanism (200).

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