Hot extrusion press

Abstract

The present invention provides a hot push square extruder for extruding and forming an axle, which includes a frame. The frame includes a cross beam and a base located below the cross beam; the clamping device includes a support mechanism fixed on the base and a pressing mechanism located above the support mechanism. The two are used to jointly clamp the blank of the axle. The support mechanism is provided with a first positioning mechanism on at least one side wall in the lateral direction of the hot push square extruder; the pressing mechanism is connected to the cross beam and can move up and down relative to the support mechanism, and is provided with a second positioning mechanism corresponding to the first positioning mechanism. The second positioning mechanism protrudes from the bottom surface of the pressing mechanism. When the pressing mechanism moves downward, it drives the second positioning mechanism to move downward along the first positioning mechanism. Through this structural design, the pressing mechanism can quickly align with the support mechanism, so as to achieve the purpose of accurately positioning the blank, and further improve the extrusion processing accuracy of the hot push square extruder.

Description

Technical Field

[0001] The present invention relates to the technical field of extrusion molding of automobile parts, and particularly to a hot push square extruder. Background Art

[0002] The rectangular part in the middle of an automobile axle can be hot extruded and formed by a hot push square extruder. The existing hot push square extruder includes a cross beam, a base located below the cross beam, a driving mechanism installed on the cross beam, a forming die connected between the cross beam and the base, and a clamping device located between the two forming dies. The clamping device includes a support mechanism and a pressing mechanism, both of which are used to jointly clamp the blank of the axle. The support mechanism is installed on the base, and the pressing mechanism is connected to the driving mechanism and can move up and down relative to the support mechanism. When it is necessary to clamp the blank of the axle to be extruded and processed, first, the positioning part of the blank is loaded into the support mechanism, and then the driving mechanism is started to drive the pressing mechanism to move downward to jointly clamp the blank with the support mechanism. However, when the pressing mechanism moves downward, its relative position with the support mechanism is not easy to align, resulting in the pressing mechanism deviating from the normal clamping position, making the positioning of the clamping device inaccurate, leading to a lower precision in the extrusion processing of the axle, and further reducing the processing precision of the hot push square extruder. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a hot push square extruder with stable positioning and improved extrusion processing precision.

[0004] To achieve the above purpose, the present invention provides a hot push square extruder, adopting the following technical solutions:

[0005] A hot push square extruder for extruding and forming an axle, comprising:

[0006] A frame, including a cross beam and a base located below the cross beam;

[0007] The clamping device includes a support mechanism fixed to the base and a pressing mechanism located above the support mechanism, the two are used to jointly clamp the blank of the axle, the support mechanism is provided with a first positioning mechanism along at least one side wall of the transverse direction of the hot push square extruder, the support mechanism includes a support seat, the support seat is installed on the base, the support seat is detachably connected to a first clamping block on the two outer side walls along the longitudinal direction of the hot push square extruder, and the support seat is provided with a positioning groove on the two opposite outer side walls along the transverse direction of the hot push square extruder, the positioning groove is the first positioning mechanism and is located between the two first clamping blocks The top of the support seat is recessed downward to form a first receiving groove, and the first receiving groove passes through the two opposite outer walls of the support seat along the longitudinal direction. The top surface of each first clamping block is recessed downward to form a positioning portion for clamping the blank and a first clamping groove passes through its two side walls along the longitudinal direction, the bottom surface of the first clamping groove is higher than the bottom surface of the first receiving groove, and the first clamping grooves of the two first clamping blocks correspond to the first receiving grooves respectively; the clamping mechanism is connected to the cross beam and can move up and down relative to the support mechanism, and is provided with a second positioning mechanism corresponding to the first positioning mechanism, and the clamping mechanism includes a clamping seat, The locking mechanism is configured to lock the locking cam of the locking cam, wherein the locking cam is secured to the locking cam of the locking cam by a secure coupling between the locking cam and the locking cam. The locking cam further comprises locking cams disposed on the sidewalls of the locking cam, the locking cam being arranged to lock the locking cam of the locking cam. The top surface of the clamping groove is lower than the top surface of the second accommodating groove, and the second clamping grooves of the two second clamping blocks correspond to the second accommodating grooves respectively; when the clamping mechanism moves downward, it drives the second positioning mechanism to move downward along the first positioning mechanism, wherein the outer wall of the first clamping block is flush with or lower than the outer wall of the support seat; the outer wall of the second clamping block is flush with or lower than the outer wall of the clamping seat, and when the clamping mechanism and the supporting mechanism jointly clamp the blank, the first accommodating groove and the second accommodating groove form a clamping space for accommodating the blank.

[0008] Furthermore, when the bottom of the positioning block moves downward into the positioning groove, the positioning block slides downward along the positioning groove, and when the clamping device clamps the blank, the bottom of the positioning block is located above the bottom wall of the positioning groove.

[0009] Furthermore, a guide portion is provided at the bottom of the positioning block, and the outer side wall of the guide portion is inclined inward relative to the positioning groove. When the positioning block is engaged with the positioning groove, the guide portion is located above the bottom wall of the positioning groove or flush with the bottom wall of the positioning groove.

[0010] Furthermore, the two outer side walls of the pressing seat along the transverse direction are respectively provided with a fixing groove corresponding to the positioning groove, and the positioning block is fixed in the fixing groove.

[0011] Furthermore, the bottom surface of the second positioning mechanism is lower than the bottom surfaces of the two second clamping blocks.

[0012] Furthermore, it includes a clamping drive mechanism installed on the crossbeam and a mounting plate connected to the clamping drive mechanism, the bottom wall of the mounting plate is provided with a plurality of guide grooves arranged side by side along the transverse direction of the hot push square extruder, the top of the clamping mechanism is provided with a guide member, the guide member is slidably connected to the guide groove, and the clamping drive mechanism drives the mounting plate to move up and down, thereby driving the clamping mechanism to move up and down.

[0013] Furthermore, it includes two guide columns, which are slidably connected to the beam respectively, and one end of the two guide columns is fixedly connected to the mounting plate respectively. When the clamping drive mechanism drives the mounting plate to move up and down, the two guide columns are driven to slide up and down relative to the beam.

[0014] The beneficial effects of the present invention are as follows: the hot push square extruder of the present invention is provided with a first positioning mechanism on the support mechanism and a second positioning mechanism corresponding to the first positioning mechanism on the clamping mechanism. When the clamping mechanism moves downward, it drives the second positioning mechanism to move downward along the first positioning mechanism, that is, the first positioning mechanism and the second positioning mechanism form a guide mechanism, so that the clamping mechanism can be quickly aligned with the support mechanism through the guide mechanism, and when the clamping mechanism and the support mechanism jointly clamp the blank, the guide mechanism can limit the blank in the axial and radial directions to prevent the blank from moving in the axial and radial directions, thereby achieving the purpose of accurately positioning the blank, thereby improving the extrusion processing accuracy of the hot push square extruder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional combined diagram of the hot push square extruder of the present invention;

[0016] Figure 2 for Figure 1 Left view of;

[0017] Figure 3 for Figure 1 A partial three-dimensional schematic diagram;

[0018] Figure 4 is Figure 1 exploded perspective view of the clamping device;

[0019] Figure 5 is Figure 4 side view of the use state of;

[0020] Figure 6 is Figure 5 sectional view taken along the line A-A of; Detailed implementation manners

[0021] Next, in combination with the drawings and detailed implementation manners, the present invention will be further described:

[0022] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated with it, or there may be an intermediate element present at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are only for the purpose of illustration.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] As Figures 1 to 6 shown, the present invention provides a hot push square extruder, which defines a vertical direction Z, and a longitudinal direction X and a transverse direction Y that are perpendicular to the vertical direction Z and perpendicular to each other. The hot push square extruder is used for hot extrusion molding of axles, and it includes a frame 1, a clamping drive mechanism 4, a mounting plate 5, guide columns 6 and a clamping device 2, and the clamping drive mechanism 4, the mounting plate 5, the guide columns 6 and the clamping device 2 are all installed on the frame 1.

[0025] As Figure 1 、 Figure 2 shown, the bracket includes a cross beam 11 and a base 12 located below the cross beam 11. Two opposite and relatively movable forming dies 7 are installed on the base 12 along its longitudinal direction X, and the forming dies 7 are used for extrusion molding of axles.

[0026] As Figure 4 、 Figure 5As shown, the clamping device 2 includes a support mechanism 21 fixed to the base 12 and a pressing mechanism 22 located above the support mechanism 21. Both are used to jointly clamp the blank 3 of the axle. The support mechanism 21 is provided with a first positioning mechanism 211 on at least one outer wall along the transverse direction Y of the hot push square extruder. The pressing mechanism 22 is connected to the cross beam 11 and can move up and down (in the vertical direction Z) relative to the support mechanism 21, and is provided with a second positioning mechanism 221 corresponding to the first positioning mechanism 211. The second positioning mechanism 221 protrudes from the bottom surface of the pressing mechanism 22. When the pressing mechanism 22 moves downward, it drives the second positioning mechanism 221 to move downward along the first positioning mechanism 211. That is, the first positioning mechanism 211 and the second positioning mechanism 221 form a guiding mechanism, so that the pressing mechanism 22 can quickly align with the support mechanism 21 through the guiding mechanism. And when the pressing mechanism 22 and the support mechanism 21 jointly clamp the blank 3 (as Figure 6 shown), the guiding mechanism can limit the blank 3 in the axial and radial directions to prevent the blank 3 from moving in the axial and radial directions, so as to achieve the purpose of accurately positioning the blank 3, and further improve the extrusion processing accuracy of the hot push square extruder.

[0027] In this embodiment, the first positioning mechanism 211 is a positioning groove 2111 opened on the outer wall of the support mechanism 21. Specifically, the support mechanism 21 includes a support seat 212. The support seat 212 is installed on the base 12 by screws or pins. One positioning groove 2111 is respectively opened on the two opposite outer walls of the support seat 212. The top of the support seat 212 is recessed downward to form a first receiving groove 213. The first receiving groove 213 extends along the longitudinal direction X of the hot push square extruder and penetrates the two opposite outer walls of the support mechanism 21.

[0028] On two outer side walls of the support base 212 along the longitudinal direction X of the hot push square extruder, a first clamping block 2121 is detachably connected by screws respectively. On the top surface of each first clamping block 2121, a first clamping groove 2122 is recessed downward to form a positioning portion 31 for clamping the blank 3 and penetrating through the left and right side walls thereof. The bottom surface of the first clamping groove 2122 is higher than the bottom surface of the first receiving groove 213, and the first clamping grooves 2122 of the two first clamping blocks 2121 correspond to the first receiving groove 213 respectively. The outer side wall of each first clamping block 2121 is flush with or lower than the outer side wall of the corresponding support base 212 to provide a sufficient clearance space for the to-be-extruded processing portion 32 of the blank 3. The first positioning mechanism 211 is located between the two first clamping blocks 2121 to achieve a good guiding purpose. By providing the detachably first clamping block 2121, when the first clamping block 2121 is worn, it is convenient to replace it with a new one to ensure the positioning accuracy of the clamping device 2.

[0029] The second positioning mechanism 221 is a positioning block 2211 that cooperates with the positioning groove 2111. The positioning block 2211 is detachably fixed on the outer side wall of the pressing mechanism 22 by screws or pins, and the bottom of the positioning block 2211 protrudes from the bottom surface of the pressing mechanism 22 to achieve the guiding purpose. Specifically, the pressing mechanism 22 includes a pressing base 222. The pressing base 222 is connected to the cross beam 11. The bottom surface of the pressing mechanism 22 is recessed upward to form a second receiving groove 224. The second receiving groove 224 extends along the longitudinal direction X of the hot push square extruder and penetrates through the two opposite outer side walls of the pressing mechanism 22. When the pressing mechanism 22 and the support mechanism 21 jointly clamp the blank 3, the first receiving groove 213 and the second receiving groove 224 enclose a clamping space for accommodating the fixed portion of the blank 3.

[0030] On the outer side wall of the pressing seat 222, a fixing groove 2221 corresponding to the positioning groove 2111 is provided. The bottom of the fixing groove 2221 penetrates through the bottom surface of the pressing seat 222. The positioning block 2211 is detachably fixed in the fixing groove 2221 by screws or pins. And the bottom of the positioning block 2211 protrudes from the bottom surface of the pressing seat 222 for the purpose of guiding. When the bottom of the positioning block 2211 moves downward into the positioning groove 2111, the positioning block 2211 slides downward along the positioning groove 2111. That is, when the pressing seat 222 moves downward and does not contact the blank 3, the second clamping block 2222 is first correctly aligned with the first clamping block 2121, and then the two clamp the positioning portion 31, so as to achieve the purpose of first aligning and then clamping, so as to ensure the positioning accuracy of the clamping device 2. In addition, the positioning block 2211 is installed in a detachable manner, and when it is worn, it is convenient to replace the new positioning block 2211.

[0031] Specifically, when the first clamping block 2121 and the second clamping block 2222 clamp the positioning portion 31, in order to prevent the bottom of the positioning block 2211 from hitting the bottom wall of the positioning groove 2111 and being damaged, the bottom of the positioning block 2211 is arranged above the bottom wall of the positioning groove 2111 (as Figure 3 , Figure 5 shown). In this embodiment, a guiding portion 2212 is provided at the bottom of the positioning block 2211. The outer side wall of the guiding portion 2212 is inclined inward relative to the positioning groove 2111. When the positioning block 2211 is engaged with the positioning groove 2111, the guiding portion 2212 is located above the bottom wall of the positioning groove 2111 or flush with the bottom wall of the positioning groove 2111. By providing this guiding portion 2212, it is beneficial for the positioning block 2211 to be smoothly inserted into the positioning groove 2111 to quickly align with the positioning groove 2111.

[0032] On the two outer sidewalls of the pressing seat 222 along the longitudinal direction X of the hot push square extruder, a second clamping block 2222 corresponding to the first clamping block 2121 is detachably connected respectively. The second clamping block 2222 is detachably fixed to the front and rear outer sidewalls of the pressing seat 222 by pins or screws. The two second clamping blocks 2222 are arranged correspondingly, and a positioning portion 31 for clamping the blank 3 is concavely formed upward on the bottom surface of each second clamping block 2222, and a second clamping groove 2223 penetrating its left and right sidewalls is formed. The top surface of the second clamping groove 2223 is lower than the top surface of the second accommodating groove 224, and the second clamping grooves 2223 of the two second clamping blocks 2222 correspond to the second accommodating groove 224 respectively. In this embodiment, the outer sidewall of each second clamping block 2222 is flush with or lower than the outer sidewall of the corresponding pressing seat 222 to provide a sufficient clearance space for the to-be-extruded processing portion 32 of the blank 3. The second positioning mechanism 221 is located between the two second clamping blocks 2222, and the bottom surface of the second positioning mechanism 221 is lower than the bottom surfaces of the two second clamping blocks 2222 to achieve the purpose of guiding. In addition, the second clamping block 2222 adopts a detachable installation method, and when it is worn, it is beneficial to replace it with a new second clamping block 2222. In order to facilitate adjusting the relative position between the second clamping block 2222 and the first clamping block 2121 to adapt to the extrusion processing of different blanks 3, a guiding member (not shown) for slidably connecting with the mounting plate 5 is provided on the top of the pressing seat 222.

[0033] As Figure 1 , Figure 2 shown, the clamping driving mechanism 4 is installed on the cross beam 11, and it is a clamping driving oil cylinder for driving the pressing mechanism 22 to move up and down, having a telescopic rod 41, and the telescopic rod 41 is slidably connected with the cross beam 11. As Figure 3 shown, the mounting plate 5 and the bottom end of the telescopic rod 41 are fixedly connected by screws or pins. A plurality of guiding grooves 51 arranged side by side are formed on the bottom wall of the mounting plate 5 along the transverse direction Y of the hot push square extruder. The guiding grooves 51 are slidably connected with the guiding member. The clamping driving oil cylinder drives the mounting plate 5 to move up and down through the telescopic rod 41 to drive the pressing seat 222 to move up and down.

[0034] Preferably, as Figure 1 , Figure 3 shown, the two guide columns 6 are respectively slidably connected to the cross beam 11, and the bottom ends of the two guide columns 6 are fixedly connected with the mounting plate 5 by fixing methods such as screws. When the clamping driving mechanism 4 drives the mounting plate 5 to move up and down, it drives the two guide columns 6 to slide up and down relative to the cross beam 11, so that the mounting plate 5 moves downward along the correct movement track under the correct guiding of the guide columns 6.

[0035] When the clamping device 2 is used to clamp the positioning part 31 of the blank 3, the positioning part 31 is first half-installed into the first clamping groove 2122, and then the clamping drive cylinder is started. At this time, the telescopic rod 41 drives the clamping seat 222 to move downward through the mounting plate 5, so as to drive the second clamping block 2222 to move downward. When the bottom of the positioning block 2211 enters the positioning groove 2111, it slides in the positioning groove 2111, so that the second clamping block 2222 gradually aligns with the first clamping block 2121 under the guidance of the positioning block 2211. When the second clamping block 2222 and the first clamping block 2121 jointly clamp the positioning part 31, the second clamping block 2222 stops moving downward. When the extrusion process is completed, the clamping drive cylinder drives the clamping mechanism 22 to move downward. When the clamping mechanism 22 is reset, the clamping drive cylinder is closed.

[0036] The hot push square extruder of the present invention is provided with a first positioning mechanism on the support mechanism and a second positioning mechanism corresponding to the first positioning mechanism on the clamping mechanism. When the clamping mechanism moves downward, it drives the second positioning mechanism to move downward along the first positioning mechanism, that is, the first positioning mechanism and the second positioning mechanism form a guide mechanism, so that the clamping mechanism can be quickly aligned with the support mechanism through the guide mechanism, and when the clamping mechanism and the support mechanism jointly clamp the blank, the guide mechanism can limit the blank in the axial and radial directions to prevent the blank from moving in the axial and radial directions, thereby achieving the purpose of accurately positioning the blank, thereby improving the extrusion processing accuracy of the hot push square extruder.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for the axis-dividing technical features thereof, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A hot push square extruder for extruding axles, characterized by: include: a frame comprising a crossbeam and a base located below the crossbeam; The clamping device includes a support mechanism fixed to the base and a pressing mechanism located above the support mechanism, the two are used to jointly clamp the blank of the axle, the support mechanism is provided with a first positioning mechanism along at least one side wall of the transverse direction of the hot push square extruder, the support mechanism includes a support seat, the support seat is installed on the base, the support seat is detachably connected to a first clamping block on the two outer side walls along the longitudinal direction of the hot push square extruder, and the support seat is provided with a positioning groove on the two opposite outer side walls along the transverse direction of the hot push square extruder, the positioning groove is the first positioning mechanism and is located between the two first clamping blocks The top of the support seat is recessed downward to form a first receiving groove, and the first receiving groove passes through the two opposite outer walls of the support seat along the longitudinal direction. The top surface of each first clamping block is recessed downward to form a positioning portion for clamping the blank and a first clamping groove passes through its two side walls along the longitudinal direction, the bottom surface of the first clamping groove is higher than the bottom surface of the first receiving groove, and the first clamping grooves of the two first clamping blocks correspond to the first receiving grooves respectively; the clamping mechanism is connected to the cross beam and can move up and down relative to the support mechanism, and is provided with a second positioning mechanism corresponding to the first positioning mechanism, and the clamping mechanism includes a clamping seat, The locking mechanism is configured to lock the locking cam of the locking cam, wherein the locking cam is secured to the locking cam of the locking cam by a secure coupling between the locking cam and the locking cam. The locking cam further comprises locking cams disposed on the sidewalls of the locking cam, the locking cam being arranged to lock the locking cam of the locking cam. The top surface of the clamping groove is lower than the top surface of the second accommodating groove, and the second clamping grooves of the two second clamping blocks correspond to the second accommodating grooves respectively; when the clamping mechanism moves downward, it drives the second positioning mechanism to move downward along the first positioning mechanism, wherein the outer wall of the first clamping block is flush with or lower than the outer wall of the support seat; the outer wall of the second clamping block is flush with or lower than the outer wall of the clamping seat, and when the clamping mechanism and the supporting mechanism jointly clamp the blank, the first accommodating groove and the second accommodating groove form a clamping space for accommodating the blank.

2. The hot push square extruder according to claim 1, characterized in that: When the bottom of the positioning block moves downward into the positioning groove, the positioning block slides downward along the positioning groove. When the clamping device clamps the blank, the bottom of the positioning block is located above the bottom wall of the positioning groove.

3. The hot push square extruder according to claim 1, characterized in that: A guide portion is provided at the bottom of the positioning block, and the outer side wall of the guide portion is inclined inwardly relative to the positioning groove. When the positioning block is engaged with the positioning groove, the guide portion is located above the bottom wall of the positioning groove or flush with the bottom wall of the positioning groove.

4. The hot push square extruder according to claim 1, characterized in that: The two outer side walls of the pressing seat along the transverse direction are respectively provided with a fixing groove corresponding to the positioning groove, and the positioning block is fixed in the fixing groove.

5. The hot push square extruder according to claim 1, characterized in that: The bottom surface of the second positioning mechanism is lower than the bottom surfaces of the two second clamping blocks.

6. The hot push square extruder according to claim 1, characterized in that: It includes a clamping drive mechanism installed on the crossbeam and a mounting plate connected to the clamping drive mechanism. The bottom wall of the mounting plate is provided with a plurality of guide grooves arranged side by side along the transverse direction of the hot push square extruder. A guide member is provided on the top of the clamping mechanism. The guide member is slidably connected to the guide groove. The clamping drive mechanism drives the mounting plate to move up and down to drive the clamping mechanism to move up and down.

7. The hot push square extruder according to claim 6, characterized in that: It includes two guide columns, which are slidably connected to the beam respectively, and one end of the two guide columns is fixedly connected to the mounting plate respectively. When the clamping drive mechanism drives the mounting plate to move up and down, the two guide columns are driven to slide up and down relative to the beam.

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