Gear forming device

Abstract

The invention relates to the technical field of gear forming, in particular to a gear forming device which comprises an upper cross beam, a lower cross beam, stand columns, a backward extrusion mechanism and a knockout mechanism. The upper cross beam and the lower cross beam are fixedly connected through the stand columns to form a stress frame. The backward extrusion mechanism comprises a backward extrusion oil cylinder, the backward extrusion oil cylinder comprises a first cylinder body and a first piston rod, the first cylinder body is fixedly connected with the upper end face of the lower cross beam and installed in the center of the lower cross beam, and the first piston rod is of a hollow structure; the knockout mechanism comprises a knockout oil cylinder and a first cross beam, the knockout oil cylinder comprises a second cylinder body and a second piston rod, the bottom of the first piston rod is fixedly connected with the first cross beam, the second cylinder body is fixed to the lower end of the first cross beam, and the second piston rod penetrates through a hollow structure of the first piston rod. And the working efficiency and the machining precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of gear forming, and in particular to a gear forming device. Background Art

[0002] Common methods for gear forming include casting, powder metallurgy and metal cutting. Gears made by casting are prone to casting defects such as sand holes, sand inclusions, pores and shrinkage; powder metallurgy requires the powder to be pressed into a green gear blank first, and then sintered and shaped before the final forming. The process is complicated and the material strength is lower than that of extrusion forging; and the method of processing the blank into a gear by metal cutting has low material utilization and high manufacturing cost. At the same time, the stress flow curve of the material will be cut off, resulting in reduced gear tooth strength. In addition, the production efficiency is relatively low for products with complex tooth shapes, which is not suitable for mass production. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention provides a gear forming device, which realizes one-step forming of the gear and improves the working efficiency and processing accuracy.

[0004] The present invention provides a gear forming device, comprising: an upper crossbeam, a lower crossbeam, a column, a back-extrusion mechanism and a beating mechanism; the upper crossbeam and the lower crossbeam are fixedly connected by the column to form a force-bearing frame; the back-extrusion mechanism comprises a back-extrusion cylinder, the back-extrusion cylinder comprises a first cylinder body and a first piston rod, the first cylinder body is fixedly connected to the upper end surface of the lower crossbeam, the first cylinder body is installed in the center of the lower crossbeam, and the first piston rod is a hollow structure; the beating mechanism comprises a beating cylinder and a first crossbeam, the beating cylinder comprises a second cylinder body and a second piston rod, the bottom of the first piston rod is fixedly connected to the first crossbeam, the second cylinder body is fixed to the lower end of the first crossbeam, and the second piston rod passes through the hollow structure of the first piston rod.

[0005] According to a gear forming device provided by the present invention, the reverse extrusion mechanism further includes a guide flange, the guide flange is fixedly connected to the first cylinder body, and the first piston rod passes through the guide flange.

[0006] According to a gear forming device provided by the present invention, the back-extrusion mechanism also includes at least two first guide rods arranged on both sides of the first piston rod, one end of the first guide rod is fixedly connected to the bottom of the first cylinder body, and the other end of the first guide rod passes through the first cross beam and is slidably connected to the first cross beam.

[0007] According to a gear forming device provided by the present invention, the punching mechanism also includes at least two second guide rods arranged on both sides of the second piston rod, one end of the second guide rod is fixedly connected to the bottom of the second cylinder body, and the other end of the second guide rod passes through a connecting beam arranged at the bottom of the second piston rod and is slidably connected to the connecting beam.

[0008] According to a gear forming device provided by the present invention, the punching mechanism also includes an adjustment assembly, which includes a lead screw nut, a turbine, a worm and a first motor, one end of the worm is connected to the first motor, and the other end of the worm cooperates with the turbine, and the turbine is fixedly mounted on the rim of the lead screw nut, and the lead screw nut cooperates with the screw portion of the second piston rod.

[0009] A gear forming device provided according to the present invention also includes a positive extrusion cylinder and a slider, the cylinder body of the positive extrusion cylinder is fixedly connected to the lower end surface of the upper cross beam, the cylinder body of the positive extrusion cylinder is hoisted at the center of the upper cross beam, and the top end of the piston rod of the positive extrusion cylinder is fixedly connected to the slider.

[0010] A gear forming device provided according to the present invention also includes a return cylinder and a return bracket, wherein the return bracket is fixedly arranged on both sides of the slider, the return bracket is fixedly connected to the piston rod of the return cylinder, and the cylinder body of the return cylinder is fixedly connected to the upper cross beam.

[0011] A gear forming device provided according to the present invention further comprises a workbench and a mold, wherein the workbench is fixedly connected to the upper end surface of the first cylinder body, and the mold is installed on the workbench.

[0012] A gear forming device provided according to the present invention also includes a clamp, which includes an upper mold clamp and a lower mold clamp, the upper mold clamp is slidably connected to the slider, and the lower mold clamp is slidably connected to the worktable.

[0013] A gear forming device provided according to the present invention further includes a stroke measuring mechanism, and the stroke measuring mechanism is arranged on the outer side wall of the second cylinder body.

[0014] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: According to the gear forming device of the embodiment of the present invention, by arranging the back-extrusion mechanism and the punching mechanism, the blank can be filled into the mold cavity more completely, and the gear tooth surface that meets the final use requirements can be produced by one pressing without secondary processing. The second piston rod is embedded in the first piston rod and moves with the back-extrusion cylinder. After the back-extrusion is completed, it can respond quickly to the punching, and the beat is more compact, thereby improving work efficiency and processing accuracy.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the gear forming device provided by the present invention.

[0018] Figure 2 It is a cross-sectional view of the reverse extrusion mechanism and the punching mechanism of the gear forming device provided by the present invention.

[0019] Figure 3 It is a stereoscopic diagram of the reverse extrusion mechanism and the punching mechanism of the gear forming device provided by the present invention.

[0020] Figure 4 This is one of the structural schematic diagrams of the adjustment component of the gear forming device provided by the present invention.

[0021] Figure 5 This is the second structural schematic diagram of the adjustment component of the gear forming device provided by the present invention.

[0022] Figure 6 It is a side view of the gear forming device provided by the present invention.

[0023] Figure 7 It is a top view of the gear forming device provided by the present invention.

[0024] Reference numerals: 1. Upper crossbeam; 2. Lower crossbeam; 3. Column; 4. Anti-extrusion mechanism; 401. Anti-extrusion cylinder; 4011. First cylinder body; 4012. First piston rod; 402. Guide flange; 403. First guide rod; 404. Split snap ring; 405. Suspension flange; 406. First guide sleeve; 5. Feeding mechanism; 501. Feeding cylinder; 5011. Second cylinder body; 5012. Second piston rod; 5013. Connecting beam; 502. First crossbeam; 503. Second guide rod; 504. Adjustment assembly; 5041. Screw nut; 5042. Turbine; 504 3. Worm; 5044. First motor; 5045. Upper and lower rotating bearings; 5046. Upper and lower bearing end covers; 5047. Turbine housing; 505. Second guide sleeve; 6. Forward extrusion cylinder; 7. Slider; 8. Return cylinder; 9. Return bracket; 10. Work table; 11. Mold; 12. Clamp; 1201. Upper mold clamp; 1202. Lower mold clamp; 13. Stroke measuring mechanism; 14. Oil tank; 15. Mold changing mechanism; 1501. External guide rail; 1502. Transmission push-pull chain; 1503. Chain collecting trough; 1504. Drive assembly. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme in the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0026] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0028] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 embodiment of the present invention. In this specification, the schematic representations 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 any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0030] Figure 1 It is a structural schematic diagram of the gear forming device provided by the present invention. Figure 2 It is a cross-sectional view of the reverse extrusion mechanism and the punching mechanism of the gear forming device provided by the present invention. Figure 3 It is a stereoscopic diagram of the reverse extrusion mechanism and the punching mechanism of the gear forming device provided by the present invention.

[0031] The present invention provides a gear forming device, such as Figures 1 to 3As shown, the gear forming device includes: an upper crossbeam 1, a lower crossbeam 2, a column 3, a back-extrusion mechanism 4 and a punching mechanism 5; the upper crossbeam 1 and the lower crossbeam 2 are fixedly connected by the column 3 to form a force-bearing frame; the back-extrusion mechanism 4 includes a back-extrusion cylinder 401, the back-extrusion cylinder 401 includes a first cylinder body 4011 and a first piston rod 4012, the first cylinder body 4011 is fixedly connected to the upper end surface of the lower crossbeam 2, the first cylinder body 4011 is installed in the central part of the lower crossbeam 2, and the first piston rod 4012 is a hollow structure; the punching mechanism 5 includes a punching cylinder 501 and a first crossbeam 502, the punching cylinder 501 includes a second cylinder body 5011 and a second piston rod 5012, the bottom of the first piston rod 4012 is fixedly connected to the first crossbeam 502, the second cylinder body 5011 is fixed to the lower end of the first crossbeam 502, and the second piston rod 5012 passes through the hollow structure of the first piston rod 4012.

[0032] In this embodiment, by setting up the cooperation between the back-extrusion mechanism 4 and the punching mechanism 5, it is achieved that the blank fills the cavity of the mold 11 more completely, and a gear tooth profile that meets the final use requirements can be produced by one pressing without secondary processing. The second piston rod 5012 is embedded in the first piston rod 4012 and moves with the back-extrusion cylinder 401. After the back-extrusion is completed, it can respond quickly to punching, and the beat is more compact, thereby improving work efficiency and processing accuracy.

[0033] According to some embodiments of the present invention, the second piston rod 5012 is embedded in the first piston rod 4012. During the extrusion process, the top of the first piston rod 4012 is flush with the top of the second piston rod 5012. After the extrusion is completed, the punching cylinder 501 is actuated and the second piston rod 5012 is extended to achieve punching, with a compact rhythm and high work efficiency.

[0034] According to some preferred embodiments of the present invention, the connection between the upper beam 1 and the lower beam 2 and the column 3 adopts a large fillet + large bevel transition form, which avoids the problem of stress concentration at the four corners when a right-angle structure is adopted.

[0035] According to some preferred embodiments of the present invention, the upper crossbeam 1, the lower crossbeam 2 and the columns 3 are welded with integral thick plates instead of traditional thin plate assembly welding, which greatly reduces the welding workload and solves the problem of small spacing span between support plates and poor welding when thin plates are welded. At the same time, the equipment has better integrity and can withstand all loads when the hydraulic press is working.

[0036] According to a gear forming device provided by the present invention, Figures 1 to 3 As shown, the anti-extrusion mechanism 4 further includes a guide flange 402 , the guide flange 402 is fixedly connected to the first cylinder body 4011 , and the first piston rod 4012 passes through the guide flange 402 .

[0037] In this embodiment, the movement direction of the first piston rod 4012 is controlled by providing a guide flange 402 to prevent the machining accuracy of the gears from being affected by inaccurate loading direction.

[0038] According to some embodiments of the present invention, the guide flange 402 is locked in the first cylinder body 4011 through the split clamping ring 404 and the suspension flange 405 .

[0039] According to a gear forming device provided by the present invention, Figures 1 to 3 As shown, the anti-extrusion mechanism 4 also includes at least two first guide rods 403 arranged on both sides of the first piston rod 4012, one end of the first guide rod 403 is fixedly connected to the bottom of the first cylinder body 4011, and the other end of the first guide rod 403 passes through the first cross beam 502 and is slidably connected to the first cross beam 502.

[0040] In this embodiment, the first guide rod 403 is provided to guide and prevent the first piston rod 4012 from rotating.

[0041] According to some embodiments of the present invention, the anti-extrusion mechanism 4 further includes a first guide sleeve 406 , which is disposed inside the first crossbeam 502 and cooperates with the first guide rod 403 .

[0042] According to a gear forming device provided by the present invention, Figures 1 to 3 As shown, the punching mechanism 5 also includes at least two second guide rods 503 arranged on both sides of the second piston rod 5012, one end of the second guide rod 503 is fixedly connected to the bottom of the second cylinder body 5011, and the other end of the second guide rod 503 passes through the connecting beam 5013 arranged at the bottom of the second piston rod 5012 and is slidably connected to the connecting beam 5013.

[0043] In this embodiment, the second guide rod 503 is provided to limit the rotational freedom of the second piston rod 5012 , so that the second piston rod 5012 can only move in the up and down directions.

[0044] According to some embodiments of the present invention, the punching mechanism 5 further includes a second guide sleeve 505 , and the second guide sleeve 505 is disposed inside the connecting beam 5013 and cooperates with the second guide rod 503 .

[0045] Figure 4 This is one of the structural schematic diagrams of the adjustment component of the gear forming device provided by the present invention. Figure 5 This is the second structural schematic diagram of the adjustment component of the gear forming device provided by the present invention.

[0046] According to a gear forming device provided by the present invention, Figure 4 and Figure 5 As shown, the punching mechanism 5 also includes an adjustment component 504, which includes a screw nut 5041, a turbine 5042, a worm 5043 and a first motor 5044, one end of the worm 5043 is connected to the first motor 5044, and the other end of the worm 5043 cooperates with the turbine 5042, and the turbine 5042 is fixedly mounted on the rim of the screw nut 5041, and the screw nut 5041 cooperates with the screw part of the second piston rod 5012.

[0047] In this embodiment, by setting the adjustment component 504, the punching height can be automatically adjusted under the drive of the first motor 5044 to meet the punching requirements of products of different sizes and specifications.

[0048] According to some embodiments of the present invention, the torque is transmitted to the turbine 5042 via the worm 5043, and the screw nut and the turbine 5042 mounted on its rim rotate simultaneously. The rotation of the screw nut 5041 will drive the screw (i.e., the second piston rod 5012) that cooperates with it to spiral up / down. Since the rotational freedom of the second piston rod 5012 has been limited by the guide rod, that is, the second piston rod 5012 can only rise / fall in a straight line, when the adjustment component 504 is actuated, the relative distance between it and the second cylinder body 5011 will change, and the distance that the second piston rod 5012 can be pushed out will change accordingly.

[0049] According to some preferred embodiments of the present invention, upper and lower rotating bearings 5045 and a turbine 5042 are respectively installed on the rim of the lead screw nut 5041 , and are fixed in the turbine housing 5047 by upper and lower bearing end covers 5046 .

[0050] According to a gear forming device provided by the present invention, Figures 1 to 5 As shown, the gear forming device also includes a positive extrusion cylinder 6 and a slider 7. The cylinder body of the positive extrusion cylinder 6 is fixedly connected to the lower end surface of the upper cross beam 1. The cylinder body of the positive extrusion cylinder 6 is hoisted at the center of the upper cross beam 1. The top end of the piston rod of the positive extrusion cylinder 6 is fixedly connected to the slider 7.

[0051] In this embodiment, by arranging the forward extrusion cylinder 6 and the reverse extrusion cylinder 401 for use in conjunction, the blank can be filled into the cavity of the mold 11 more completely, and a gear tooth profile that meets the final use requirements can be produced by one pressing.

[0052] According to some embodiments of the present invention, the forward extrusion cylinder 6 and the reverse extrusion cylinder 401 configured on the equipment have the same tonnage.

[0053] According to a gear forming device provided by the present invention, Figures 1 to 5As shown, the gear forming device also includes a return cylinder 8 and a return bracket 9, wherein the return bracket 9 is fixedly arranged on both sides of the slider 7, the return bracket 9 is fixedly connected to the piston rod of the return cylinder 8, and the cylinder body of the return cylinder 8 is fixedly connected to the upper cross beam 1.

[0054] According to some embodiments of the present invention, the return bracket 9 and the slider 7 are connected by bolt fastening key positioning.

[0055] According to some embodiments of the present invention, a first T-slot is disposed at the bottom of the slider 7 .

[0056] According to some embodiments of the present invention, the slider 7 is installed at the center of the device.

[0057] According to some embodiments of the present invention, the return cylinder 8 adopts a single-acting piston cylinder form, that is, the output part of the cylinder is a rod-shaped annular cavity, and the rodless cavity of the cylinder is directly connected to the oil tank 14 by an end-through flange pipeline. When the return cylinder 8 returns, the oil can return to the oil tank 14 without pressure. The bottom of the return cylinder 8 is inserted into the upper beam, and the reverse side is closed on the bottom surface of the upper cross beam 1, distributed on both sides of the positive extrusion cylinder 6, and the positive extrusion cylinder 6 is in the center of the upper cross beam 1.

[0058] Figure 6 It is a side view of the gear forming device provided by the present invention. Figure 7 It is a top view of the gear forming device provided by the present invention.

[0059] According to a gear forming device provided by the present invention, Figures 1 to 7 As shown, the gear forming device further includes a workbench 10 and a mold 11 . The workbench 10 is fixedly connected to the upper end surface of the first cylinder body 4011 , and the mold 11 is installed on the workbench 10 .

[0060] According to some embodiments of the present invention, a second T-slot is disposed on the top surface of the workbench 10 .

[0061] According to a gear forming device provided by the present invention, Figures 1 to 7 As shown, the gear forming device also includes a clamp 12, and the clamp 12 includes an upper mold clamp 1201 and a lower mold clamp 1202, the upper mold clamp 1201 is slidably connected to the slider 7, and the lower mold clamp 1202 is slidably connected to the worktable 10.

[0062] In this embodiment, by providing an upper mold clamp 1201 slidably connected to the slider 7 and a lower mold clamp 1202 slidably connected to the worktable 10 , sliding adjustment and clamping of molds 11 of different sizes can be achieved.

[0063] According to some embodiments of the present invention, the upper mold clamp 1201 is installed upside down in the first T-slot on the bottom surface of the slider 7, and can be adjusted and clamped according to the sliding movement of the upper mold part of the mold 11 of different sizes.

[0064] According to some embodiments of the present invention, a movable lower mold clamp 1202 is installed in the second T-slot on the workbench 10, which can realize the sliding adjustment and clamping of the lower mold part of the mold 11 of different sizes.

[0065] According to some embodiments of the present invention, a mold changing mechanism 15 is installed on the front end face of the work table 10 for moving in and out molds 11 of different specifications and sizes. A driving component 1504 of the mold changing mechanism 15 is installed on the front facade of the work table 10, and an external guide rail 1501 is installed on the other side of the work table 10. The power end of the mold changing mechanism 15 is connected to the mold 11 through a transmission push-pull chain 1502, and a chain collecting trough 1503 is installed at the lower part of the driving component 1504 of the mold changing mechanism 15.

[0066] According to some preferred embodiments of the present invention, the driving component 1504 adopts a second motor.

[0067] According to a gear forming device provided by the present invention, Figures 1 to 7 As shown, the gear forming device further includes a stroke measuring mechanism 13 , and the stroke measuring mechanism 13 is arranged on the outer side wall of the second cylinder body 5011 .

[0068] In this embodiment, the pressing stroke of the back-extrusion cylinder 401 is detected by providing a stroke measuring mechanism 13 .

[0069] According to some preferred embodiments of the present invention, the travel measurement mechanism 13 includes a linear displacement sensor and a scale.

[0070] According to some embodiments of the present invention, a linear displacement sensor is provided on the outer side wall of the punching cylinder to detect the strokes of the back-extrusion cylinder 401 and the punching cylinder 501 in real time.

[0071] The technical solution of the present invention is further explained below in conjunction with a specific embodiment. It should be noted that this specific embodiment is only for those skilled in the art to better understand the technical solution of the present invention, and should not be regarded as an unreasonable limitation on the protection scope of the present invention.

[0072] Embodiment 1 The equipment is equipped with a reverse extrusion cylinder with almost the same tonnage as the forward extrusion cylinder. The adjustment component works before pressing, and the relative distance between the connecting beam and the second cylinder body is adjusted according to the size of the gear to be processed. During the gear extrusion molding process, the forward extrusion cylinder first moves downward and the slider presses the gear, that is, forward pressing causes the blank to produce corresponding plastic flow deformation. After pressing in place, the slider stops while maintaining pressure, and then the reverse extrusion cylinder moves upward and the first piston rod extends to reversely press the blank, so that the blank and the mold cavity are fully filled. In this way, the gear tooth profile that meets the final use requirements can be produced. The second piston rod extends from the first piston rod to push the gear out of the mold, remove the gear, and the forward extrusion cylinder, reverse extrusion cylinder and punching cylinder are reset to enter the next cycle.

[0073] Compared with the prior art, the gear forming device of the embodiment of the present invention has the following technical effects: 1. The upper crossbeam, lower crossbeam and columns are welded with integral thick plates instead of traditional thin plate welding, which greatly reduces the welding workload and solves the problem of small span between support plates when welding thin plates. At the same time, the equipment has better integrity and adopts large fillet + large bevel transition form to avoid the problem of stress concentration at the four corners when using right-angle structures.

[0074] 2. The equipment is equipped with a reverse extrusion cylinder with almost the same tonnage as the upper extrusion cylinder, which realizes the forward and reverse extrusion process of first forward extrusion and then reverse extrusion, so that the blank can fill the cavity more completely. The gear tooth surface that meets the final use requirements can be produced in one pressing without secondary processing.

[0075] 3. The second piston rod is embedded in the first piston rod and moves with the back-extrusion cylinder. After the back-extrusion is completed, it can respond quickly to the material punching, and the beat is more compact.

[0076] 4. The adjustment component is set, and the screw nut can automatically adjust the punching height under the drive of the first motor to meet the punching needs of products of different sizes and specifications.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. 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 some of the technical features therein. However, 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 embodiments of the present invention.

Claims

1. A gear forming device, characterized in that: include: Upper crossbeam, lower crossbeam, column, anti-extrusion mechanism and punching mechanism; The upper crossbeam and the lower crossbeam are fixedly connected by the columns to form a force-bearing frame; The back-extrusion mechanism comprises a back-extrusion oil cylinder, the back-extrusion oil cylinder comprises a first cylinder body and a first piston rod, the first cylinder body is fixedly connected to the upper end surface of the lower cross beam, the first cylinder body is installed at the central part of the lower cross beam, and the first piston rod is a hollow structure; The material beating mechanism includes a material beating cylinder and a first cross beam, the material beating cylinder includes a second cylinder body and a second piston rod, the bottom of the first piston rod is fixedly connected to the first cross beam, the second cylinder body is fixed to the lower end of the first cross beam, and the second piston rod passes through the hollow structure of the first piston rod.

2. The gear forming device according to claim 1, characterized in that: The anti-extrusion mechanism further includes a guide flange, the guide flange is fixedly connected to the first cylinder body, and the first piston rod passes through the guide flange.

3. The gear forming device according to claim 1, characterized in that: The anti-extrusion mechanism also includes at least two first guide rods respectively arranged on both sides of the first piston rod, one end of the first guide rod is fixedly connected to the bottom of the first cylinder body, and the other end of the first guide rod passes through the first cross beam and is slidably connected to the first cross beam.

4. The gear forming device according to claim 1, characterized in that: The material beating mechanism also includes at least two second guide rods arranged on both sides of the second piston rod, one end of the second guide rod is fixedly connected to the bottom of the second cylinder body, and the other end of the second guide rod passes through the connecting beam arranged at the bottom of the second piston rod and is slidably connected to the connecting beam.

5. The gear forming device according to claim 1, characterized in that: The punching mechanism also includes an adjustment component, which includes a lead screw nut, a turbine, a worm and a first motor. One end of the worm is connected to the first motor, and the other end of the worm cooperates with the turbine. The turbine is fixedly mounted on the rim of the lead screw nut, and the lead screw nut cooperates with the screw portion of the second piston rod.

6. The gear forming device according to claim 1, characterized in that: It also includes a positive extrusion cylinder and a sliding block, wherein the cylinder body of the positive extrusion cylinder is fixedly connected to the lower end surface of the upper cross beam, the cylinder body of the positive extrusion cylinder is hoisted at the central part of the upper cross beam, and the top end of the piston rod of the positive extrusion cylinder is fixedly connected to the sliding block.

7. The gear forming device according to claim 6, characterized in that: It also includes a return cylinder and a return bracket, wherein the return bracket is fixedly arranged on both sides of the slider, the return bracket is fixedly connected to the piston rod of the return cylinder, and the cylinder body of the return cylinder is fixedly connected to the upper crossbeam.

8. The gear forming device according to claim 7, characterized in that: It also includes a workbench and a mold. The workbench is fixedly connected to the upper end surface of the first cylinder body, and the mold is installed on the workbench.

9. The gear forming device according to claim 8, characterized in that: It also includes a clamp, which includes an upper mold clamp and a lower mold clamp. The upper mold clamp is slidably connected to the slider, and the lower mold clamp is slidably connected to the workbench.

10. The gear forming device according to claim 1, characterized in that: It also includes a stroke measuring mechanism, which is arranged on the outer side wall of the second cylinder body.

Images