Forklift drive axle locking and pushing tool

Abstract

The utility model discloses a forklift drive axle locking and pushing tool which comprises a tool feeding base matched with a drive axle shell in shape, a curved limiting groove is formed in the tool feeding base, and the curved portion of the drive axle shell is limited in the curved limiting groove. The notch part of the curved limiting groove is fixedly connected with an annular boss, and the two ends of the curved limiting groove and the two ends of the annular boss are each provided with a discharging lap joint matched with the shape of the drive axle shell; a plurality of locking plate structures used for being locked and pressed on a drive axle shell are fixedly assembled and connected to the annular boss. The tool further comprises an upper ejector rod mechanism installed at the bottom of the tool feeding base. The device overcomes the defects that in the machining process of the drive axle shell, due to the fact that the axle shell part is difficult to position and support, the welding stress of the drive axle shell is large, the welding position is prone to damage, and shaft shell parts of cylindrical structures at the two ends of the drive axle shell are prone to deformation.

Description

Technical Field

[0001] The utility model belongs to the technical field of forklift drive axle processing, in particular to a forklift drive axle locking and pushing tool. Background Art

[0002] A forklift drive axle is a component of a forklift truck. Its primary function is to convert engine torque and regulate speed. Specifically, the main structure of the drive axle includes the drive axle housing, which houses a gear mechanism. This gear mechanism achieves speed and torque changes.

[0003] The forklift drive axle housing is unusually shaped, particularly with a curved structure. This curved structure makes it difficult to position the entire housing during machining. Current tooling positioning methods leave the difficult-to-position drive axle housing section suspended in the air, while the axle housings at each end of the housing are secured to the tooling table using, for example, clamps.

[0004] The disadvantage of this locking method is that during processing, the weight of the entire housing is concentrated on the drive axle housing, which has a high degree of irregularity. Since this part is difficult to position and remains suspended, it causes high welding stress during processing such as welding, drilling, and slotting, and is prone to damage at the weld site. In addition, once the suspended drive axle housing is subjected to pressure due to its heavy weight during drilling and slotting, it can easily cause slight deformation of the axle housing at both ends, which is difficult to detect.

[0005] At the same time, since the drive axle housing part with high anisotropy is suspended and not locked, the positioning stability is not high. Utility Model Content

[0006] Based on the above background, the purpose of the present invention is to provide a forklift drive axle locking and pushing tooling.

[0007] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0008] A forklift drive axle locking and pushing tool comprises a tool loading seat adapted to the shape of the drive axle housing, the tool loading seat being provided with a curved limiting groove, and the curved portion of the drive axle housing being limited in the curved limiting groove;

[0009] The notch of the curved limiting groove is fixedly connected to an annular boss, and both ends of the curved limiting groove and the annular boss are respectively provided with a material discharge opening adapted to the shape of the drive axle housing;

[0010] The annular boss is fixedly assembled with a plurality of locking plate structures for locking on the drive axle housing, and the locking plate structure includes a fixing screw fixedly connected to the annular boss, a pressure plate is slidably connected to the fixing screw, and a locking nut is threadedly connected to the fixing screw for pressing against the pressure plate;

[0011] The forklift drive axle locking and pushing tooling also includes an upper push rod mechanism installed at the bottom position of the tooling loading seat. After the processing is completed, the drive axle housing is pushed up by the upper push rod mechanism until the drive axle housing is lifted relative to the curved limit groove and then the material is discharged.

[0012] Preferably, the left and right side walls of the tooling loading seat are respectively fixedly connected with a drive axle housing shaft-shaped locking structure located below the curved limiting groove.

[0013] Preferably, the drive axle housing shaft-shaped locking structure includes a connecting screw fixedly connected to the loading seat, a lower fixed base is fixedly mounted on the connecting screw, an upper clamping seat is mounted on the top of the lower fixed base, and an arc-shaped clamping groove is opened at the bottom of the upper clamping seat;

[0014] The lower fixed base and the upper clamping base are locked by a screw structure.

[0015] Preferably, the lower fixed base includes a barrel portion threadedly connected to the connecting screw, and the front and rear ends of the barrel portion are integrally formed with fixed seat portions. The screw structure includes screws fixedly connected to the top positions of the fixed seat portions, and the screw passes through the upper clamping seat and is threadedly connected to a nut.

[0016] Preferably, a through opening is provided at the bottom of the tool loading seat, and the through opening is located at the bottom of the curved limiting groove;

[0017] The upper ejector mechanism includes an upper ejector cylinder fixedly installed at the bottom position of the tooling feeding seat, and the piston rod of the upper ejector cylinder is fixedly connected to the upper ejector. During the ejection process, the upper ejector penetrates from the penetration position.

[0018] Preferably, the bottom of the tooling loading seat is fixedly connected to a lower connecting seat structure, and the upper ejector rod passes through the lower connecting seat structure.

[0019] Preferably, the lower connecting seat structure includes an upper connecting seat fixedly connected to the bottom position of the tooling loading seat, a through hole corresponding to the through opening is opened at the center of the upper connecting seat, a connecting pipe is fixedly connected to the bottom of the upper connecting seat, a lower annular seat is fixedly connected to the bottom of the connecting pipe, and a mounting base is fixedly connected to the bottom of the lower annular seat;

[0020] The cylinder barrel of the upper cylinder is fixedly mounted on the mounting base.

[0021] Preferably, a spring is sleeved on the fixing screw, and the bottom of the spring is fixedly connected to the annular boss.

[0022] Preferably, the projection of the tool loading seat on the horizontal plane is a circular shape, and the projection of the tool loading seat on the vertical plane is a semicircular shape.

[0023] The utility model has the following beneficial effects:

[0024] 1. After the drive axle housing is loaded, the bridge housing portion of the drive axle housing is accommodated in the curved limiting groove and contacts the groove wall of the curved limiting groove. In this way, the drive axle housing can be fully limited during the processing process. Secondly, it can be fully supported on the bridge housing portion of the curved structure, thereby solving the problem that the bridge housing portion is difficult to position and support during the processing of the drive axle housing, resulting in the existing tooling suspending the bridge housing portion, resulting in high welding stress of the drive axle housing during processing, easy damage to the welding position, and easy deformation of the columnar structure shaft housing portion at both ends of the drive axle housing.

[0025] 2. Pre-adjust the position of the lower fixing base on the connecting screw according to the length of the axle housing at both ends of the axle housing. If the axle housing is longer, rotate the barrel part outward. Then, use the arc-shaped slot on the upper clamping seat to clamp it to the axle housing and lock it with the screw and nut structure. This method fully locks the main structure of the drive axle housing, greatly increasing the stability during the processing.

[0026] 3. During operation, after the drive axle housing is machined, the piston rod of the lifting cylinder drives the lifting rod into the curved limit groove. Specifically, the rod penetrates the center opening of the lower annular seat, the lumen of the connecting pipe, the through hole of the upper connecting seat, and the through-hole, and then lifts up the drive axle housing. Because the axle housing portion of the drive axle housing is restrained in the curved limit groove, the lifting process can smoothly lift the drive axle housing, making the raised drive axle housing easier to unload. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0029] Figure 2 This is a schematic structural diagram of the locking plate structure in an embodiment of the present utility model;

[0030] Figure 3 This is a schematic structural diagram of the drive axle housing shaft-shaped locking structure in an embodiment of the present utility model;

[0031] Figure 4 For the embodiment of the utility model Figure 1 A structural diagram from another perspective;

[0032] Figure 5 For the embodiment of the utility model Figure 4 A structural diagram from another perspective.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0037] Example 1

[0038] like Figure 1-5As shown, a forklift drive axle locking and pushing fixture includes a fixture loading base 1 adapted to the shape of the drive axle housing. Specifically, the fixture loading base 1 is shaped to adapt to the axle housing portion of the drive axle housing (the axle housing portion is curved), specifically a hemispherical shape. That is, the projection of the fixture loading base 1 on a horizontal plane is circular, and the projection of the fixture loading base 1 on a vertical plane is semicircular. The fixture loading base 1 is provided with a curved limiting groove (the curved limiting groove is hemispherical in shape), and the curved portion of the drive axle housing is retained within the curved limiting groove.

[0039] After loading, the bridge housing portion of the drive axle housing is accommodated in the curved limiting groove and abuts against the groove wall of the curved limiting groove. In this way, the drive axle housing is fully limited during the processing process, and secondly, it is fully supported on the bridge housing portion of the curved structure, thereby solving the problem that the bridge housing portion is difficult to position and support during the processing of the drive axle housing, resulting in the existing tooling suspending the bridge housing portion, resulting in high welding stress on the drive axle housing during processing, easy damage to the welding position, and easy deformation of the columnar structure of the shaft housing portion at both ends of the drive axle housing (in the existing drive axle structure, the half-shafts are all installed on the gear speed change structure in the bridge housing after passing through the shaft housing).

[0040] At the same time, in order to fully lock the bridge housing, the notch portion of the above-mentioned curved limit groove is fixedly connected with an annular boss 11, and a number of locking plate structures 2 for locking on the drive axle housing are fixedly assembled and connected on the annular boss 11. The locking plate structure 2 includes a fixed screw 21 fixedly connected to the annular boss 11, and a pressure plate 23 is slidably connected to the fixed screw 21. A locking nut that presses against the pressure plate 23 is threadedly connected to the fixed screw 21.

[0041] Specifically, a spring 22 is sleeved on the fixing screw 21 , the bottom of the spring 22 is fixedly connected to the annular boss 11 , and the top of the spring 22 is supported on the bottom of the pressure plate 23 .

[0042] After the loading is completed, the pressing plate 23 is rotated until it is located above the bridge housing portion, and the tightening nut is adjusted downward until the tightening nut is tightened against the mouth of the bridge housing portion.

[0043] The above method can fully lock and position the main part of the drive axle housing - the axle housing part, thereby increasing the stability of the drive axle housing during the processing.

[0044] Example 2

[0045] like Figure 1-5As shown, this embodiment builds on the structure of Example 1, with the curved limit groove and annular boss 11 each having a material-discharging opening 111 adapted to the shape of the drive axle housing. These openings 111 support the axle housing (which is a cylindrical structure) at both ends of the axle housing. Furthermore, the left and right side walls of the tooling loading base 1 are fixedly connected to the drive axle housing shaft-shaped locking structure 4, located below the curved limit groove.

[0046] Specifically, the drive axle housing axial locking structure 4 includes a connecting screw 41 fixedly connected to the loading seat, a lower fixed base 42 is fixedly installed on the connecting screw 41, an upper clamping seat 43 is installed on the top of the lower fixed base 42, and an arc-shaped clamping groove is provided at the bottom of the upper clamping seat 43; the lower fixed base 42 and the upper clamping seat 43 are locked by a screw structure.

[0047] Specifically, the lower fixed base 42 includes a screw barrel portion threadedly connected to the connecting screw 41, and the front and rear ends of the screw barrel portion are integrally formed with fixed seat portions. The screw structure includes screws 44 fixedly connected to the top positions of the fixed seat portions, and the screw 44 passes through the upper clamping seat 43 and is threadedly connected to a nut 441.

[0048] During operation, the lower fixed base 42 is pre-adjusted on the connecting screw 41 according to the length of the axle housing at each end of the axle housing. If the axle housing is longer, the screw barrel is rotated outward. Subsequently, the upper clamping base 43 is clamped to the axle housing using the arc-shaped groove, and locked using the screw 44 and nut 441 structure. This method fully locks the main structure of the drive axle housing, greatly enhancing the stability during processing.

[0049] Example 3

[0050] like Figure 1-5 As shown, based on the structure of Example 2, the forklift drive axle locking and pushing tooling of this embodiment also includes an upper push rod mechanism installed at the bottom position of the tooling loading seat 1. After the processing is completed, the drive axle housing is pushed up by the upper push rod mechanism until the drive axle housing is lifted relative to the curved limit groove and then the material is discharged.

[0051] A circular through-hole is provided at the bottom of the tooling loading seat 1, and the through-hole is located at the bottom of the curved limit groove; the upper ejector mechanism includes an upper ejector cylinder 51 fixedly installed at the bottom of the tooling loading seat 1, and the piston rod of the upper ejector cylinder 51 is fixedly connected to the upper ejector rod 52, which penetrates from the through-hole during the ejection process.

[0052] Specifically, the bottom of the tool loading base 1 is fixedly connected to a lower connecting base structure, and the upper push rod 52 passes through the lower connecting base structure. The lower connecting base structure includes an upper connecting base fixedly connected to the bottom position of the tool loading base 1. The center portion of the upper connecting base has a through hole corresponding to the through hole. The bottom of the upper connecting base is fixedly connected to the connecting pipe 3, and the bottom of the connecting pipe 3 is fixedly connected to the lower annular base. The bottom of the lower annular base is fixedly connected to the mounting base 6. The cylinder barrel of the upper push cylinder 51 is fixedly mounted on the mounting base 6. The mounting base 6 is threaded with a number of mounting bolts 61 for fixing it to the workbench. The operation process is the same as the existing method. The mounting base 6 is fixedly assembled and passed through the workbench via the mounting bolts 61.

[0053] During operation, after the drive axle housing is machined, the piston rod of the lifting cylinder 51 drives the lifting rod 52 into the curved retaining groove. Specifically, the lifting rod 52 penetrates the center opening of the lower annular seat, the lumen of the connecting pipe 3, the through hole of the upper connecting seat, and the through-hole, thereby lifting the drive axle housing. Because the axle housing portion of the drive axle housing is retained in the curved retaining groove, the lifting process can smoothly lift the drive axle housing, making the raised drive axle housing easier to unload.

[0054] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A forklift drive axle locking and pushing tooling, characterized in that: It includes a tooling loading seat adapted to the shape of the drive axle housing, the tooling loading seat is provided with a curved limiting groove, and the curved portion of the drive axle housing is limited in the curved limiting groove; The notch of the curved limiting groove is fixedly connected to an annular boss, and both ends of the curved limiting groove and the annular boss are respectively provided with a material discharge opening adapted to the shape of the drive axle housing; The annular boss is fixedly assembled with a plurality of locking plate structures for locking on the drive axle housing, and the locking plate structure includes a fixing screw fixedly connected to the annular boss, a pressure plate is slidably connected to the fixing screw, and a locking nut is threadedly connected to the fixing screw for pressing against the pressure plate; The forklift drive axle locking and pushing tooling also includes an upper push rod mechanism installed at the bottom position of the tooling loading seat. After the processing is completed, the drive axle housing is pushed up by the upper push rod mechanism until the drive axle housing is lifted relative to the curved limit groove and then the material is discharged.

2. The forklift drive axle locking and pushing tool according to claim 1, characterized in that: The left and right side walls of the tooling loading seat are respectively fixedly connected with a drive axle housing shaft-shaped locking structure located below the curved limiting groove.

3. The forklift drive axle locking and pushing tool according to claim 2, characterized in that: The drive axle housing shaft-shaped locking structure includes a connecting screw fixedly connected to the loading seat, a lower fixed base is fixedly installed on the connecting screw, an upper clamping seat is installed on the top of the lower fixed base, and an arc-shaped clamping groove is opened at the bottom of the upper clamping seat; The lower fixed base and the upper clamping base are locked by a screw structure.

4. The forklift drive axle locking and pushing tool according to claim 3, characterized in that: The lower fixed base includes a screw barrel portion threadedly connected to the connecting screw, and the front and rear ends of the screw barrel portion are integrally formed with fixed seat portions. The screw structure includes screws fixedly connected to the top positions of the fixed seat portions, and the screws pass through the upper clamping seat and are threadedly connected to nuts.

5. The forklift drive axle locking and pushing tool according to claim 3, characterized in that: A through-hole is provided at the bottom of the tooling loading seat, and the through-hole is located at the bottom of the curved limiting groove; The upper ejector mechanism includes an upper ejector cylinder fixedly installed at the bottom position of the tooling feeding seat, and the piston rod of the upper ejector cylinder is fixedly connected to the upper ejector. During the ejection process, the upper ejector penetrates from the penetration position.

6. The forklift drive axle locking and pushing tool according to claim 5, characterized in that: The bottom of the tooling loading seat is fixedly connected with a lower connecting seat structure, and the upper ejector rod passes through the lower connecting seat structure.

7. The forklift drive axle locking and pushing tool according to claim 6, characterized in that: The lower connecting seat structure includes an upper connecting seat fixedly connected to the bottom position of the tooling loading seat, a through hole corresponding to the through hole is opened at the center of the upper connecting seat, a connecting pipe is fixedly connected to the bottom of the upper connecting seat, a lower annular seat is fixedly connected to the bottom of the connecting pipe, and a mounting base is fixedly connected to the bottom of the lower annular seat; The cylinder barrel of the upper cylinder is fixedly mounted on the mounting base.

8. The forklift drive axle locking and pushing tool according to claim 1, characterized in that: A spring is sleeved on the fixing screw, and the bottom of the spring is fixedly connected to the annular boss.

9. The forklift drive axle locking and pushing tool according to claim 1, characterized in that: The projection of the tool loading seat on the horizontal plane is a circular shape, and the projection of the tool loading seat on the vertical plane is a semicircular shape.

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