Elbow type three-way extruding machine

Abstract

The utility model discloses an elbow type three-way extruder, and relates to the technical field of extruders. Comprising a base which is provided with a workpiece. The clamping mechanism is arranged above the base and comprises an elbow type clamping mechanism and a movable plate, the movable plate is connected to the lower portion of the elbow type clamping mechanism, and the elbow type clamping mechanism can drive the movable plate to slide relative to the base in the vertical direction under the action of the driving mechanism so as to abut against the top of a workpiece; the extrusion mechanism is arranged below the base and comprises an elbow type extrusion mechanism and an extrusion piece; the elbow type extrusion mechanisms are symmetrically connected to the two sides of the base. The elbow type extrusion mechanism comprises a first positioning frame and a first connecting rod mechanism; the first positioning frame can vertically slide relative to the base through the driving device, one end of the first connecting rod mechanism is hinged to the first positioning frame, and the other end is connected with an extrusion part; under the action of the driving device, the first positioning frame drives the extrusion part through the first connecting rod mechanism to synchronously apply extrusion acting force to the two ends of the workpiece in the axis direction so as to press and mold the workpiece.

Description

Technical Field

[0001] The utility model belongs to the technical field of extruders, and in particular relates to an elbow-type three-way extruder. Background Art

[0002] The extruder is the primary equipment for producing light alloy (aluminum, copper, and magnesium alloy) tubes, rods, and profiles. When a workpiece is placed in a die on the base of the device, hydraulic cylinders on both sides of the extruder drive hydraulic rods to apply extrusion pressure to both ends of the workpiece's axis, causing the center of the workpiece to bulge outward in a cylindrical shape, forming a three-way pipe structure.

[0003] Existing three-way extruders all use hydraulic drive for cylinders, which requires a large hydraulic station, high equipment power, and large oil waste; it is also inconvenient to adjust and change the model, resulting in low production efficiency and low production yield; and the cylinders on both sides of the extruder need to extrude synchronously. Due to poor synchronization of the cylinders, it will further lead to reduced production efficiency and high scrap rate. Utility Model Content

[0004] The utility model provides an elbow-type three-way extruder to solve the problems that the existing extruder adopts the hydraulic drive mode of the oil cylinder, needs to set up a large hydraulic station, and the oil cylinders on both sides of the extruder have poor synchronization, resulting in low production efficiency and high scrap rate.

[0005] The technical solution adopted by this utility model is:

[0006] An elbow-type three-way extruder, comprising:

[0007] a base, on which a workpiece is mounted;

[0008] a clamping mechanism disposed above the base, comprising an elbow clamping mechanism and a movable plate, wherein the elbow clamping mechanism is disposed above the base, and a movable plate is connected below the elbow clamping mechanism, wherein the elbow clamping mechanism can drive the movable plate to slide vertically relative to the base under the action of a driving mechanism to press against the top of the workpiece;

[0009] The extrusion mechanism is arranged under the base and includes an elbow-type extrusion mechanism and an extrusion member; the elbow-type extrusion mechanism is symmetrically connected to both sides of the base; the elbow-type extrusion mechanism includes a first positioning frame and a first connecting rod mechanism; the first positioning frame can slide vertically relative to the base through a driving device, one end of the first connecting rod mechanism is hingedly connected to the first positioning frame, and the other end is connected to the extrusion member; under the action of the driving device, the first positioning frame drives the extrusion member through the first connecting rod mechanism to synchronously apply extrusion force at both ends along the axial direction of the workpiece to press the workpiece into shape.

[0010] The elbow-type three-way extruder of the utility model also has the following additional technical features:

[0011] The first connecting rod mechanism includes a first connecting rod, a second connecting rod and a third connecting rod; the first connecting rod is hingedly connected to the first positioning frame, the third connecting rod is hingedly connected to the extrusion member, and the second connecting rod is hingedly connected between the first connecting rod and the second connecting rod. The first connecting rod, the second connecting rod and the third connecting rod form a C-shaped structure surrounding the outside of the first positioning frame.

[0012] Both sides of the base are fixedly connected with fixing rods extending along the length direction of the base, and the fixing rods are hingedly connected to the middle position of the second connecting rod.

[0013] The extrusion mechanism also includes a support frame and a support seat; the support seat is connected to the bottom of the base; the support frame is symmetrically connected to both sides of the top of the base; the support frame is provided with an installation cavity for installing the extrusion component, and the extrusion component can slide relatively along the axial direction of the installation cavity to extrude the two ends of the workpiece in the axial direction.

[0014] The driving device includes a first driving member, a first screw, a first screw nut and a first bearing assembly; the first driving member is connected to the support seat, and the first screw is connected to the first driving member; the two ends of the first screw are rotatably connected to the support seat and the base through the first bearing assembly respectively; the first screw nut is connected to the first positioning frame; the first screw and the first screw nut are cooperatively connected.

[0015] The extrusion mechanism also includes a sliding device, which includes a guide rail and a slider; the guide rail is connected to the support seat, and the slider is slidably connected to the guide rail. The slider can be connected to the first positioning frame so that the first positioning frame slides vertically relative to the base.

[0016] The clamping mechanism also includes a fixed seat and a support; the fixed seat is connected to the top of the base through a plurality of guide columns; the support is connected between the fixed seat and the movable plate, and one end of the support can partially extend out of the fixed seat; the support is connected to a driving mechanism, and the elbow-type clamping mechanism is connected to both sides of the driving mechanism; the movable plate can slide relative to the base along the guide columns through the elbow-type clamping mechanism.

[0017] The elbow clamping mechanism includes a first fixed frame, a first connecting rod, a second connecting rod and a third connecting rod; the first fixed frame slides vertically relative to the base through a driving mechanism; one end of the first connecting rod is hingedly connected to the first fixed frame, and the other end of the first connecting rod can be hingedly connected to one end of the second connecting rod and the third connecting rod respectively, the other end of the second connecting rod is hingedly connected to the fixed seat, and the other end of the third connecting rod is hingedly connected to the movable plate.

[0018] The driving mechanism includes a driving member, a second lead screw, a second bearing assembly and a second lead screw nut; the driving member is connected to the support, and the second lead screw is connected to the driving member; both ends of the first lead screw are rotatably connected to the support through the second bearing assembly; the second lead screw nut is installed in the first fixing frame and is connected to the second lead screw.

[0019] The clamping mechanism also includes a sliding mechanism, which includes a sliding guide rail and a sliding block; the sliding guide rail is connected to the support, the sliding block is slidably connected to the sliding guide rail, and the first fixing frame is connected to the sliding block and slides vertically relative to the base through the sliding block.

[0020] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0021] The cam is provided with a plurality of movable members, and the movable members are provided with a plurality of movable members under the plurality of movable members, and the movable members are provided with a plurality of movable members under the plurality of movable members.

[0022] Among them, the extrusion mechanism includes an elbow-type extrusion mechanism and an extrusion piece; the elbow-type extrusion mechanism includes a first positioning frame and a first connecting rod mechanism; the first positioning frame can slide vertically relative to the base through a driving device, one end of the first connecting rod mechanism is hingedly connected to the first positioning frame, and the other end is connected to the extrusion piece; under the action of the driving device, the first positioning frame drives the extrusion piece through the first connecting rod mechanism to synchronously apply extrusion force at both ends of the axial direction of the workpiece to press the workpiece into shape; the vertical linear motion of the first positioning frame can be converted into horizontal motion of the extrusion piece along both ends of the workpiece through the first connecting rod mechanism, and the torque can be amplified, and the small input torque can be amplified to a large output torque, thereby realizing rapid response and precise control of the mechanical system.

[0023] 2. As a preferred embodiment of the present invention, the first connecting rod mechanism includes a first connecting rod, a second connecting rod and a third connecting rod; the first connecting rod is hingedly connected to the first positioning frame, the third connecting rod is hingedly connected to the extrusion piece, and the second connecting rod is hingedly connected between the first connecting rod and the second connecting rod. The first connecting rod, the second connecting rod and the third connecting rod form a C-shaped structure surrounding the outside of the first positioning frame.

[0024] The first connecting rod is connected to the first positioning member, and the second connecting rod is hingedly connected between the first connecting rod and the fixed seat, so that when the first connecting rod follows the first positioning frame to move vertically, it can drive the second connecting rod to rotate relative to the fixed seat, so that the third connecting rod can generate a torque rotating around the second connecting rod under the rotation action of the second connecting rod, so that the third connecting rod can still generate a large rotation in a very short path, thereby outputting a large rotational power. Since the third connecting rod is hingedly connected to the movable plate, it can generate a large output power relative to the movable plate. Compared with the traditional hydraulic cylinder driving the hydraulic rod to push the movable plate to move linearly, it can achieve a shorter stroke and output a greater force, saving time and effort, and improving the extrusion force and extrusion efficiency of the workpiece.

[0025] 3. As a preferred embodiment of the present invention, fixing rods extending along the length direction of the base are fixedly connected to both sides of the base, and the fixing rods are hingedly connected to the middle position of the second connecting rod.

[0026] Fixed rods are extended on both sides of the base. The purpose of the fixed rods is to be able to be hingedly connected to the second connecting rod, thereby providing a rotation fulcrum for the second connecting rod, so that the second connecting rod rotates around the middle part, and the rotation movement of the first connecting rod drives the second connecting rod to rotate. Since the third connecting rod is connected to the extrusion part, the extrusion part moves horizontally under the limiting action of the installation cavity described below, so that the extrusion parts on both sides can be synchronously extruded relative to the two ends of the axis of the workpiece.

[0027] 4. As a preferred embodiment of the present invention, the extrusion mechanism also includes a support frame and a support seat; the support seat is connected to the bottom of the base; the support frame is symmetrically connected to both sides of the top of the base; the support frame is provided with an installation cavity for inserting the extrusion piece, and the extrusion piece can slide relatively along the axial direction of the installation cavity to extrude the two ends of the axial direction of the workpiece.

[0028] The support seat of the extrusion mechanism is arranged below the base. The purpose of the support seat is to set a sliding device, which can further support the first positioning frame, so that the first positioning frame can move up and down relative to the base under the drive of the sliding device, which can not only guide the first positioning frame, but also further enhance the connection strength of the extrusion mechanism; the support frame is arranged on both sides of the top of the base, and an installation cavity for installing an extrusion piece is opened in the support frame, thereby limiting the radial movement of the extrusion piece and sliding axially along the installation cavity, thereby realizing synchronous extrusion of both ends of the workpiece. By setting the installation cavity to limit the movement of the extrusion piece in the horizontal direction, the rotational motion of the first connecting rod mechanism can be converted into linear movement of the extrusion piece, so that the extrusion piece obtains greater output power, and compared with the traditional oil cylinder drive, the control of the first connecting rod mechanism further improves the synchronization of the output power of the extrusion pieces on both sides.

[0029] 5. As a preferred embodiment of the present invention, the driving device includes a first driving member, a first screw, a first screw nut and a first bearing assembly; the first driving member is connected to the support seat, and the first screw is connected to the first driving member; the two ends of the first screw are rotatably connected to the support seat and the base through the first bearing assembly respectively; the first screw nut is connected to the first positioning frame; the first screw and the first screw nut are cooperatively connected.

[0030] The first driving member drives the first screw to rotate, and the first screw nut is fixed in the first positioning frame. Therefore, the first positioning frame follows the first screw nut and moves linearly along the first screw under the drive of the first screw nut, thereby driving the second connecting rod and the third connecting rod to work in conjunction to realize the linear movement of the extrusion member connected to the third connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0032] Figure 1 This is a schematic diagram of the overall structure of an elbow-type three-way extruder according to one embodiment of the present invention;

[0033] Figure 2This is a structural schematic diagram of an extrusion mechanism of an elbow-type three-way extruder according to one embodiment of the present invention;

[0034] Figure 3 This is a schematic structural diagram of an internal cross-section of an extrusion mechanism of an elbow-type three-way extruder according to one embodiment of the present invention;

[0035] Figure 4 This is a structural schematic diagram of a clamping mechanism of an elbow-type three-way extruder according to one embodiment of the present invention;

[0036] Figure 5 This is a schematic internal cross-sectional view of a clamping mechanism of an elbow-type three-way extruder according to one embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the left side structure of a clamping mechanism of an elbow-type three-way extruder according to one embodiment of the present invention;

[0038] in,

[0039] 1. Base;

[0040] 2. Elbow-type squeezing mechanism; 21. First positioning frame; 22. First connecting rod mechanism; 221. First connecting rod; 222. Second connecting rod; 223. Third connecting rod;

[0041] 3. Driving device; 31. First driving member; 32. First lead screw; 33. First lead screw nut; 34. First bearing assembly;

[0042] 4. Sliding device; 41. Guide rail; 42. Slider;

[0043] 5. Extrusion piece; 6. Support frame; 7. Support seat; 8. Fixing rod;

[0044] 9. Elbow clamping mechanism; 91. First fixing frame; 92. First connecting rod; 93. Second connecting rod; 94. Third connecting rod;

[0045] 10. Driving mechanism; 101. Second driving member; 102. Second lead screw; 103. Second lead screw nut; 104. Second bearing assembly;

[0046] 11. Sliding mechanism; 111. Sliding guide rail; 112. Sliding block;

[0047] 12. Fixed seat; 13. Support; 14. Positioning piece; 15. Guide column; 16. Movable plate. DETAILED DESCRIPTION

[0048] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0049] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "embodiment", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0052] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0053] The utility model relates to an elbow-type three-way extruder, such as Figure 1-6 Shown, including:

[0054] A base 1, wherein a workpiece is mounted on the base 1;

[0055] The clamping mechanism is arranged above the base 1 and includes an elbow clamping mechanism 9 and a movable plate 16. The elbow clamping mechanism 9 is arranged above the base 1, and the movable plate 16 is connected to the bottom of the elbow clamping mechanism 9. The elbow clamping mechanism 9 can drive the movable plate 16 to slide vertically relative to the base 1 under the action of the driving mechanism 10 to press against the top of the workpiece;

[0056] The extrusion mechanism is arranged below the base 1 and includes an elbow-type extrusion mechanism 2 and an extrusion member 5; the elbow-type extrusion mechanism 2 is symmetrically connected to both sides of the base 1; the elbow-type extrusion mechanism 2 includes a first positioning frame 21 and a first connecting rod mechanism 22; the first positioning frame 21 can slide vertically relative to the base 1 through the driving device 3, and one end of the first connecting rod mechanism 22 is hingedly connected to the first positioning frame 21, and the other end is connected to the extrusion member 5; under the action of the driving device 3, the first positioning frame 21 drives the extrusion member 5 through the first connecting rod mechanism 22 to synchronously apply extrusion force at both ends along the axial direction of the workpiece to press the workpiece into shape.

[0057] A clamping mechanism is provided above the base 1, which can clamp the top of the workpiece to achieve the positioning of the workpiece, and an extrusion mechanism is provided below the base 1, which includes an elbow-type extrusion mechanism 2 symmetrical to both sides of the workpiece, which can squeeze the two ends of the workpiece in the axial direction, so that the workpiece is press-formed into a three-way structure in the mold; wherein the clamping mechanism includes an elbow-type clamping mechanism 9 and a movable plate 16, the elbow-type clamping mechanism 9 is provided above the base 1, and a movable plate 16 is connected to the bottom of the elbow-type clamping mechanism 9, and the elbow-type clamping mechanism 9 can drive the movable plate 16 to slide vertically relative to the base 1 under the action of the driving mechanism 10 to press against the top of the workpiece; thereby, the elbow-type clamping mechanism 9 drives the movable plate 16 to realize the conversion of a smaller force into a larger force to achieve the extrusion of the workpiece, so that the workpiece is positioned, and the positioning deviation of the workpiece can be avoided. Compared with the traditional method of driving the hydraulic cylinder to squeeze the two ends of the workpiece, it is more time-saving and labor-saving;

[0058] During actual application, a lower mold is set above the base 1, and an upper mold is connected to the movable plate 16. When the upper mold and the lower mold are buckled together, the workpiece is positioned. First, the cylindrical steel pipe is placed in the cavity of the lower mold. The cavity of the lower mold is symmetrical with the cavity structure of the upper mold, and the shape of the cavity is a three-way pipe structure. When the round tube is placed in the cavity of the lower mold, the two ends of the workpiece in the axial direction can extend out of the lower mold. The movable plate 16 moves downward under the movement of the elbow clamping mechanism 9 so that the upper mold is buckled above the lower mold, and the elbow clamping mechanism 9 squeezes the top of the workpiece, thereby realizing the positioning of the workpiece. At this time, the two ends of the workpiece in the axial direction still extend outside the upper and lower molds, and then the elbow extrusion mechanism 2 is started to squeeze the two ends of the workpiece in the axial direction, so that the two ends of the workpiece are compressed inward, so that the compressed workpiece can change its shape in the cavity in the upper and lower molds and become a three-way pipe structure.

[0059] Among them, the extrusion mechanism includes an elbow-type extrusion mechanism 2 and an extrusion piece 5; the elbow-type extrusion mechanism 2 includes a first positioning frame 21 and a first connecting rod mechanism 22; the first positioning frame 21 can slide vertically relative to the base 1 through the driving device 3, and one end of the first connecting rod mechanism 22 is hingedly connected to the first positioning frame 21, and the other end is connected to the extrusion piece 5; under the action of the driving device 3, the first positioning frame 21 drives the extrusion piece 5 through the first connecting rod mechanism 22 to synchronously apply extrusion force at both ends of the axial direction of the workpiece to press the workpiece into shape; through the first connecting rod mechanism 22, the vertical linear motion of the first positioning frame 21 can be converted into horizontal motion of the extrusion piece 5 along both ends of the workpiece, and the torque can be amplified, and the small input torque can be amplified to a large output torque, thereby realizing rapid response and precise control of the mechanical system.

[0060] As a preferred embodiment, the first connecting rod mechanism 22 includes a first connecting rod 221, a second connecting rod 222 and a third connecting rod 223; the first connecting rod 221 is hingedly connected to the first positioning frame 21, the third connecting rod 223 is hingedly connected to the extrusion member 5, and the second connecting rod 222 is hingedly connected between the first connecting rod 221 and the second connecting rod 222. The first connecting rod 221, the second connecting rod 222 and the third connecting rod 223 form a C-shaped structure surrounding the outside of the first positioning frame 21.

[0061] The first connecting rod 221 is connected to the first positioning member 14, and the second connecting rod 222 is hingedly connected between the first connecting rod 221 and the fixed seat 12, so that when the first connecting rod 221 follows the first positioning frame 21 to move vertically, it can drive the second connecting rod 222 to rotate relative to the fixed seat 12, so that the third connecting rod 223 can generate a torque rotating around the second connecting rod 222 under the rotation action of the second connecting rod 222, so that in a very short path, the third connecting rod 223 can still generate a large rotation, thereby outputting a large rotational power. Since the third connecting rod 223 is hingedly connected to the movable plate 16, it can generate a large output power relative to the movable plate 16. Compared with the traditional hydraulic cylinder driving the hydraulic rod to push the movable plate 16 to move linearly, it can achieve a shorter stroke to output a greater force, saving time and effort, and improving the extrusion force and extrusion efficiency on the workpiece.

[0062] Furthermore, fixing rods 8 extending along the length direction of the base 1 are fixedly connected to both sides of the base 1 , and the fixing rods 8 are hingedly connected to the middle position of the second connecting rod 222 .

[0063] Fixed rods 8 are extended on both sides of the base 1. The purpose of the fixed rods 8 is to be able to be hingedly connected to the second connecting rod 222, thereby providing a rotation fulcrum for the second connecting rod 222, so that the second connecting rod 222 rotates around the middle, and the rotation of the first connecting rod 221 drives the second connecting rod 222 to rotate. Since the third connecting rod 223 is connected to the extrusion part 5, the extrusion part 5 moves horizontally under the limiting action of the installation cavity described below, so that the extrusion parts 5 on both sides can be synchronously extruded relative to the two ends of the axis of the workpiece.

[0064] As a preferred embodiment, the extrusion mechanism also includes a support frame 6 and a support seat 7; the support seat 7 is connected to the bottom of the base 1; the support frame 6 is symmetrically connected to both sides of the top of the base 1; the support frame 6 is provided with an installation cavity for wearing the extrusion member 5, and the extrusion member 5 can slide relatively along the axial direction of the installation cavity to extrude the two ends of the axial direction of the workpiece.

[0065] The support seat 7 of the extrusion mechanism is arranged below the base 1. The purpose of the support seat 7 is to set the sliding device 4, which can further support the first positioning frame 21, so that the first positioning frame 21 can move up and down relative to the base 1 under the drive of the sliding device 4, which can not only guide the first positioning frame 21, but also further enhance the connection strength of the extrusion mechanism; the support frame 6 is arranged on both sides of the top of the base 1, and an installation cavity for installing the extrusion member 5 is opened in the support frame 6, thereby limiting the radial movement of the extrusion member 5 and making it slide axially along the installation cavity to achieve synchronous extrusion of the two ends of the workpiece. By setting the installation cavity to limit the movement of the extrusion member 5 in the horizontal direction, the rotational movement of the first connecting rod mechanism 22 can be converted into linear movement of the extrusion member 5, so that the extrusion member 5 obtains greater output power, and the control of the first connecting rod mechanism 22 is compared with the traditional oil cylinder drive, and the synchronization of the output power of the extrusion members 5 on both sides is further improved.

[0066] As a preferred embodiment, the driving device 3 includes a first driving member 31, a first lead screw 32, a first lead screw nut 33 and a first bearing assembly 34; the first driving member 31 is connected to the support seat 7, and the first lead screw 32 is connected to the first driving member 31; the two ends of the first lead screw 32 are respectively rotatably connected to the support seat 7 and the base 1 through the first bearing assembly 34; the first lead screw nut 33 is connected to the first positioning frame 21; the first lead screw 32 and the first lead screw nut 33 are cooperatively connected.

[0067] like Figure 3As shown, the top end of the first lead screw 32 is rotatably connected to the base 1 through the first bearing assembly 34, and the bottom end of the first lead screw 32 is rotatably connected to the support seat 7 below the base 1 through the first bearing assembly 34. A first lead screw nut 33 is sleeved on the first lead screw 32, and the first lead screw nut 33 is installed in the accommodating cavity opened in the first positioning frame 21, so that the first lead screw nut 33 is fixedly connected to the first positioning frame 21.

[0068] The first driving member 31 drives the first screw 32 to rotate, and the first screw nut 33 is fixed in the first positioning frame 21. Therefore, the first positioning frame 21 follows the first screw nut 33 and moves linearly along the first screw 32 under the drive of the first screw nut 33, thereby driving the second connecting rod 222 and the third connecting rod 223 to work in conjunction to realize the linear movement of the extrusion member 5 connected to the third connecting rod 223.

[0069] As a preferred embodiment, the extrusion mechanism also includes a sliding device 4, which includes a guide rail 41 and a slider 42; the guide rail 41 is connected to the support seat 7, and the slider 42 is slidably connected to the guide rail 41. The slider 42 can be connected to the first positioning frame 21 so that the first positioning frame 21 slides vertically relative to the base 1.

[0070] like Figure 3 As shown, a plurality of guide rails 41 are vertically connected to at least one side of the support seat 7. In this embodiment, two guide rails 41 are connected to one side of the support seat 7. A slider 42 is slidably connected to the guide rail 41. The slider 42 can be fixedly connected to the first positioning frame 21, so that it can move vertically along the guide rail 41 when the first positioning frame 21 follows the first lead screw nut 33 to move linearly along the first lead screw 32, thereby further improving the stability of the vertical movement of the first positioning frame 21 and increasing the stability of the output power of the first connecting rod mechanism 22 to drive the extrusion member 5 to move.

[0071] As a preferred embodiment, the clamping mechanism also includes a fixed seat 12 and a support 13; the fixed seat 12 is connected to the top of the base 1 through a plurality of guide columns 15; the support 13 is connected between the fixed seat 12 and the movable plate 16, and one end of the support 13 can partially extend out of the fixed seat 12; the support 13 is connected to the driving mechanism 10, and the elbow clamping mechanism 9 is connected to both sides of the driving mechanism 10; the movable plate 16 can slide relative to the base 1 along the guide column 15 through the elbow clamping mechanism 9.

[0072] like Figure 4As shown, the fixed seat 12 is arranged parallel to the top of the movable plate 16, the support 13 is fixedly connected to the top of the fixed seat 12, and the fixed seat 12 and the base 1 are directly connected to a guide column 15 at the four corners. The movable plate 16 is arranged between the fixed seat 12 and the base 1 and can be slidably connected to the guide column 15; the fixed seat 12 is used to support the support 13, and the support 13 is used to support the connection drive mechanism 10; there are elbow clamping mechanisms 9 on both sides of the drive mechanism 10, and a movable plate 16 is connected to the bottom of the elbow clamping mechanism 9. The movable plate 16 is used to abut the top of the workpiece placed on the base 1 below, so that the workpiece can be positioned.

[0073] As a preferred embodiment, the elbow clamping mechanism 9 includes a first fixed frame 91, a first connecting rod 92, a second connecting rod 93 and a third connecting rod 94; the first fixed frame 91 slides vertically relative to the base 1 through the driving mechanism 10; one end of the first connecting rod 92 is hingedly connected to the first fixed frame 91, and the other end of the first connecting rod 92 can be hingedly connected to one end of the second connecting rod 93 and the third connecting rod 94 respectively, the other end of the second connecting rod 93 is hingedly connected to the fixed seat 12, and the other end of the third connecting rod 94 is hingedly connected to the movable plate 16.

[0074] like Figure 5 As shown, grooves are provided on both sides of the first fixing frame 91, and the first connecting rod 92 is rotatably connected to the groove via a pin. The bottom end of the first connecting rod 92 is rotatably connected to the second connecting rod 93 and one end of the third connecting rod 94 via a pin. The other end of the second connecting rod 93 is hingedly connected to the positioning member 14 connected to the bottom of the fixing seat 12. The other end of the third connecting rod 94 is hingedly connected to the top of the movable plate 16 via a pin and a mounting seat. The first fixing frame 91 is connected to the driving mechanism 10 so that the driving mechanism 10 drives the first fixing frame 91 to slide vertically. When the workpiece needs to be extruded, the first fixing frame 91 is driven downward by the driving mechanism 10, thereby driving the first connecting rod 92 downward, as shown in FIG. Figure 5 The second connecting rod 93 on the left side of the orientation shown rotates clockwise around the fixing seat 12. Figure 5 The second connecting rod 93 on the right side rotates counterclockwise around the fixed base 12, causing the second connecting rod 93 to transition from its initial nearly horizontal position to a continuously extended vertical position, thereby driving the third connecting rod 94 to rotate. The third connecting rod 94 continuously extends vertically, thereby driving the movable plate 16 downward until it abuts the top of the workpiece. When the workpiece is extruded, the movable plate 16 needs to be moved upward by driving the drive mechanism 10 in the opposite direction.

[0075] As a preferred embodiment, the driving mechanism 10 includes a second driving member 101, a second lead screw 102, a second bearing assembly 104 and a second lead screw nut 103; the second driving member 101 is connected to the support 13, and the second lead screw 102 is connected to the second driving member 101; both ends of the second lead screw 102 are rotatably connected to the support 13 through the second bearing assembly 104; the second lead screw nut 103 is installed in the first fixing frame 91 and is connected to the second lead screw 102.

[0076] like Figure 5 As shown, a mounting space for accommodating the first fixing frame 91 is provided in the middle of the fixing base 12, and a receiving cavity for accommodating the second lead screw nut 103 is provided inside the first fixing frame 91, so that the second lead screw nut 103 is fixedly connected to the first fixing frame 91; the second lead screw 102 is installed in the second lead screw nut 103, the top of the second lead screw 102 passes through the fixing base 12 and is connected to the support 13, the top of the second lead screw 102 is connected to the second driving member 101, and the bottom end of the second lead screw 102 can extend downward to the bottom of the support 13 The top end of the second lead screw 102 is rotatably connected to the top of the support 13 via the second bearing assembly 104, and the bottom end of the second lead screw 102 is rotatably connected to the bottom of the support 13 via the second bearing assembly 104. During operation, the second driving member 101 drives the second lead screw 102 to rotate. Since both ends of the second lead screw 102 are rotatably connected to the support 13, the second lead screw nut 103 threadedly connected to the second lead screw 102 moves linearly along the second lead screw 102, thereby driving the first fixing frame 91 to move linearly along the second lead screw 102. The second driving member 101 is a drive motor or a servo motor.

[0077] As a preferred embodiment, the clamping mechanism also includes a sliding mechanism 11, which includes a sliding guide rail 111 and a sliding block 112; the sliding guide rail 111 is connected to the support 13, the sliding block 112 is slidably connected to the sliding guide rail 111, and the first fixed frame 91 is connected to the sliding block 112 and slides vertically relative to the base 1 through the sliding block 112.

[0078] like Figure 5As shown, at least one side of the support 13 is connected to a sliding guide rail 111. In this embodiment, the number of sliding guide rails 111 located on one side of the support 13 is one, and a sliding block 112 is connected to the sliding guide rail 111. The sliding block 112 can be fixedly connected to one side of the first fixed frame 91, so that when the first fixed frame 91 is in the linear motion of the second lead screw nut 103, it can move vertically along the sliding guide rail 111, thereby achieving a guiding effect on the linear motion of the first fixed frame 91, so that the motion trajectory of the first fixed frame 91 will not be offset, thereby effectively ensuring the stable operation of the first fixed frame 91, and further achieving stable linkage between the first connecting rod 92, the second connecting rod 93 and the third connecting rod 94 driven by the first fixed frame 91, outputting stable power, so that the movable plate 16 can move up and down smoothly, achieving abutment against the top surface of the workpiece, ensuring the accuracy of the position of the workpiece, and facilitating the next step of squeezing the two ends of the workpiece.

[0079] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0080] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0081] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. An elbow-type three-way extruder, characterized in that: include: a base, on which a workpiece is mounted; a clamping mechanism disposed above the base, comprising an elbow clamping mechanism and a movable plate, wherein the movable plate is connected below the elbow clamping mechanism, and wherein the elbow clamping mechanism can drive the movable plate to slide vertically relative to the base under the action of a driving mechanism to press against the top of the workpiece; An extrusion mechanism is provided below the base and includes an elbow-type extrusion mechanism and an extrusion member; The elbow-type squeezing mechanism is symmetrically connected to both sides of the base; The elbow-type extrusion mechanism includes a first positioning frame and a first connecting rod mechanism; the first positioning frame can slide vertically relative to the base through a driving device, one end of the first connecting rod mechanism is hingedly connected to the first positioning frame, and the other end is connected to an extrusion member; under the action of the driving device, the first positioning frame drives the extrusion member through the first connecting rod mechanism to synchronously apply extrusion force at both ends along the axial direction of the workpiece to press the workpiece into shape.

2. The elbow-type three-way extruder according to claim 1, characterized in that: The first connecting rod mechanism includes a first connecting rod, a second connecting rod and a third connecting rod; the first connecting rod is hingedly connected to the first positioning frame, the third connecting rod is hingedly connected to the extrusion member, and the second connecting rod is hingedly connected between the first connecting rod and the second connecting rod. The first connecting rod, the second connecting rod and the third connecting rod form a C-shaped structure surrounding the outside of the first positioning frame.

3. The elbow-type three-way extruder according to claim 2, characterized in that: Both sides of the base are fixedly connected with fixing rods extending along the length direction of the base, and the fixing rods are hingedly connected to the middle position of the second connecting rod.

4. The elbow-type three-way extruder according to claim 1, characterized in that: The extrusion mechanism also includes a support frame and a support seat; the support seat is connected to the bottom of the base; the support frame is symmetrically connected to both sides of the top of the base; the support frame is provided with an installation cavity for installing the extrusion component, and the extrusion component can slide relatively along the axial direction of the installation cavity to extrude the two ends of the workpiece in the axial direction.

5. The elbow-type three-way extruder according to claim 4, characterized in that: The driving device includes a first driving member, a first screw, a first screw nut and a first bearing assembly; the first driving member is connected to the support seat, and the first screw is connected to the first driving member; the two ends of the first screw are rotatably connected to the support seat and the base through the first bearing assembly respectively; the first screw nut is connected to the first positioning frame; the first screw and the first screw nut are cooperatively connected.

6. The elbow-type three-way extruder according to claim 4, characterized in that: The extrusion mechanism also includes a sliding device, which includes a guide rail and a slider; the guide rail is connected to the support seat, and the slider is slidably connected to the guide rail. The slider can be connected to the first positioning frame so that the first positioning frame slides vertically relative to the base.

7. The elbow-type three-way extruder according to claim 1, characterized in that: The clamping mechanism further includes a fixing seat and a support; the fixing seat is connected to the upper portion of the base via a plurality of guide columns; the support is connected between the fixing seat and the movable plate, and one end of the support can partially extend out of the fixing seat; The support is connected to a driving mechanism, and the elbow-type clamping mechanism is connected to both sides of the driving mechanism; the movable plate can slide along the guide column relative to the base through the elbow-type clamping mechanism.

8. The elbow-type three-way extruder according to claim 7, characterized in that: The elbow clamping mechanism includes a first fixed frame, a first connecting rod, a second connecting rod and a third connecting rod; the first fixed frame slides vertically relative to the base through a driving mechanism; one end of the first connecting rod is hingedly connected to the first fixed frame, and the other end of the first connecting rod can be hingedly connected to one end of the second connecting rod and the third connecting rod respectively, the other end of the second connecting rod is hingedly connected to the fixed seat, and the other end of the third connecting rod is hingedly connected to the movable plate.

9. The elbow-type three-way extruder according to claim 8, characterized in that: The driving mechanism includes a second driving member, a second lead screw, a second bearing assembly and a second lead screw nut; the second driving member is connected to the support, and the second lead screw is connected to the second driving member; both ends of the second lead screw are rotatably connected to the support through a second bearing assembly; the second lead screw nut is installed in the first fixing frame and is connected to the second lead screw.

10. The elbow-type three-way extruder according to claim 9, characterized in that: The clamping mechanism also includes a sliding mechanism, which includes a sliding guide rail and a sliding block; the sliding guide rail is connected to the support, the sliding block is slidably connected to the sliding guide rail, and the first fixing frame is connected to the sliding block and slides vertically relative to the base through the sliding block.

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