Forklift drive axle cylindrical turning tool

Abstract

The utility model discloses a forklift drive axle outer circle turning tool which comprises a tool table, and the top of the tool table is fixedly connected with a locking mechanism used for locking a drive axle shell. The locking mechanism comprises an end shaft locking structure and a bracket locking structure; the bracket locking structure comprises a curved seat for limiting the central part of the drive axle shell, and a limiting groove corresponding to the shape of the drive axle shell is formed in the curved seat; the notch part of the limiting groove is fixedly connected with an annular flange; the annular flange is fixedly connected to the top of the tool table through a plurality of spring connecting pieces. The support locking structure further comprises a plurality of lock tongue structures distributed in the circumferential direction, and when the drive axle shell is fed in the limiting groove, the lock tongue structures are locked and pressed in the center of the drive axle shell in the circumferential direction. By means of the structure of the device, in the working process, the drive axle shell with the high special-shaped degree is fully locked, it is guaranteed that a workpiece is not loosened in the outer circle turn-milling process, and the technical defect that the drive axle shell is difficult to stably lock due to the high special-shaped degree is overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of forklift drive axle processing, in particular to a forklift drive axle outer circle tooling. Background Art

[0002] The forklift drive axle is a supporting drive axle used on forklifts. Its main structure includes the drive axle housing and the gear structures such as the reducer and differential installed in the drive axle housing, as well as the half-axles used for power transmission.

[0003] During the production and processing of drive axles, the drive axle housing is a complex, irregularly shaped structure, making it difficult to machine. Specifically, the center of the drive axle housing (the center of the drive axle housing is a curved, hemispherical structure, used for the later installation of gears and other structures) must be turned. Before turning the center of the drive axle housing, the drive axle housing is mounted on a work fixture, and then the milling cutter on the lathe turns the center of the drive axle housing.

[0004] However, since the central part of the drive axle housing is a curved structure shaped like a hemisphere, in order to maintain a high locking stability when the tooling is locked, it is necessary to lock it through multiple pressure plate structures. However, the curved structure itself is supported on the tooling table, and the support surface between it and the tooling table is small due to the curved structure, and the support stability is not high. Therefore, in the actual processing process, it is found that once the locking stability of the pressure plate structure at a certain position is insufficient, the drive axle housing is easy to tilt during the circumferential milling process of the milling cutter head. As long as it tilts slightly, it is not only easy to cause risks such as tool collision, but also cause the produced drive axle housing to be directly scrapped. Once the size does not meet the standard after external cylindrical milling, it is basically difficult to repair and can only be treated as waste.

[0005] Therefore, in the face of a drive axle housing with a high degree of irregularity, how to maintain the stability of the drive axle housing during the turning and milling process is crucial to improving the production efficiency and qualification rate of the product. Utility Model Content

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

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

[0008] A forklift drive axle outer circle tooling, comprising a tooling platform, the top of which is fixedly connected to a locking mechanism for locking the drive axle housing;

[0009] The locking mechanism includes an end shaft locking structure respectively locked on the shaft-shaped structures at both ends of the drive axle housing and a support locking structure supported and locked on the center part of the drive axle housing;

[0010] The support and locking structure includes a curved seat that limits the center of the drive axle housing, and the curved seat is provided with a limiting groove corresponding to the shape of the drive axle housing;

[0011] The notch of the limiting groove is fixedly connected with an annular flange;

[0012] The annular flange is fixedly connected to the top of the tooling table through a plurality of spring connectors;

[0013] The support and locking structure further comprises a plurality of circumferentially distributed locking tongue structures. When the drive axle housing is loaded into the limiting groove, the locking tongue structures are circumferentially locked and pressed against the central portion of the drive axle housing.

[0014] Preferably, the spring connector comprises a telescopic slide rod fixedly connected to the bottom position of the annular flange, and the telescopic slide rod is slidably connected to a sleeve;

[0015] The bottom of the sleeve is fixedly connected with a mounting seat, and the mounting seat is fixedly mounted on the top position of the tooling table by a plurality of bolts.

[0016] Preferably, the spring connector further comprises a spring sleeved on the telescopic slide rod, and the top of the sleeve is fixedly connected to an annular spring seat;

[0017] The two ends of the spring are respectively fixedly connected to the bottom of the annular flange and the top of the annular spring seat.

[0018] Preferably, the locking tongue structure includes a rotating downward-pressing cylinder, a piston rod of the rotating downward-pressing cylinder is fixedly connected to a driving rod, and a top of the driving rod is fixedly connected to the downward-pressing locking tongue.

[0019] Preferably, the end shaft locking structure includes a lower locking rod and an upper locking rod cooperating with the lower locking rod;

[0020] The lower locking rod is integrally formed with a lower arc-shaped portion, and the upper locking rod is integrally formed with an upper arc-shaped portion that matches the lower arc-shaped portion;

[0021] The end shaft position of the drive axle housing is locked between the lower arc-shaped portion and the upper arc-shaped portion.

[0022] Preferably, mounting portions are integrally formed at both ends of the lower locking rod, and the mounting portions are fixedly mounted on the workbench;

[0023] The mounting portion is L-shaped.

[0024] Preferably, the end shaft locking structure further includes cylinder structures spaced apart on both sides for driving the upper locking rod to descend;

[0025] The cylinder structure comprises cylinders spaced apart on both sides, wherein the piston rods of the cylinders are fixedly connected to mounting rods;

[0026] The installation rod is slidably connected to the lower locking rod, and the installation rod is fixedly installed on the upper locking rod.

[0027] Preferably, spring members are respectively assembled and connected between the two ends of the lower locking rod and the upper locking rod.

[0028] Preferably, the spring member comprises a spring rod fixedly connected to the lower locking rod, and the spring rod is slidably connected to the upper locking rod;

[0029] A short spring is sleeved on the spring rod.

[0030] The utility model has the following beneficial effects:

[0031] 1. During the loading process, the center of the drive axle housing is loaded into the curved seat. Since the curved groove structure cooperates with the curved structure of the drive axle housing, the supporting stability of the housing is increased.

[0032] 2. After the housing is loaded, the rotary downward pressure cylinder first drives the downward pressure lock tongue to a position above the edge of the drive axle housing's central structure. The drive rod then follows the piston rod down to the downward pressure lock tongue, pressing down the central structure of the drive axle housing on all sides. During this process, the spring further compresses, and the telescopic slide further retracts into the sleeve. This method fully locks the central part of the housing for subsequent outer circle turning. This method fully locks the central structure of the drive axle housing and prevents the workpiece from loosening during the outer circle turning process.

[0033] 3. During the working process, under the drive of the cylinder, the upper locking rod is pressed down onto the lower locking rod, and the lower arc-shaped part of the upper locking rod and the lower locking rod are locked and clamped on the two ends (axial structure) of the drive axle housing. During this process, the spring rod slides relative to the upper locking rod, and the short spring is compressed. The housing structure is protected during the process of locking the drive axle housing structure through the compression of the short spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 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.

[0035] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0036] Figure 2 This is a structural diagram of the support and locking structure in an embodiment of the present utility model;

[0037] Figure 3 This is a structural diagram of the end shaft locking structure in an embodiment of the present utility model;

[0038] Figure 4 For the embodiment of the utility model Figure 1 A structural diagram from another perspective.

[0039] 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

[0040] 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.

[0041] 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.

[0042] 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.

[0043] Example 1

[0044] like Figures 1-4 As shown, a forklift drive axle outer circle tooling includes a tooling platform 1, and a locking mechanism for locking the drive axle housing is fixedly connected to the top of the tooling platform 1.

[0045] The specific structure of the locking mechanism is as follows:

[0046] The locking mechanism includes an end shaft locking structure 2 which is respectively locked on the shaft-shaped structures at both ends of the drive axle housing, and a support locking structure 3 which is supported and locked on the center part of the drive axle housing.

[0047] Specifically, the end shaft locking structure 2 and the support locking structure 3 correspond to the shape of the drive axle housing, respectively locking the shaft-shaped structures at both ends of the housing and supporting and locking the curved structure at the center of the housing.

[0048] The specific structure of the support and locking structure 3 is as follows:

[0049] The support and locking structure 3 includes a curved seat 31 that holds the center of the drive axle housing in place. This seat 31 features a retaining groove that corresponds to the shape of the drive axle housing (and mates with the hemispherical structure at the center of the drive axle housing). During loading, the center of the drive axle housing is positioned within the curved seat 31. The curved groove mates with the curved structure of the drive axle housing, enhancing the housing's support stability.

[0050] At the same time, an annular flange 32 is fixedly connected to the notch portion of the limiting groove.

[0051] Specifically, the annular flange 32 is fixedly connected to the top of the workbench 1 through a plurality of spring connectors 4; specifically, the spring connector 4 includes a telescopic slide 42 fixedly connected to the bottom position of the annular flange 32, and the telescopic slide 42 is slidably connected to a sleeve 41.

[0052] At the same time, the bottom of the sleeve 41 is fixedly connected to a mounting seat, and the mounting seat is fixedly mounted on the top position of the tooling table 1 by a plurality of bolts.

[0053] The spring connector 4 also includes a spring 43 sleeved on the telescopic slide rod 42, and the top of the sleeve 41 is fixedly connected to an annular spring seat; the two ends of the spring 43 are respectively fixedly connected to the bottom of the annular flange 32 and the top position of the annular spring seat.

[0054] During operation, after the drive axle housing is loaded, the weight of the drive axle housing causes the telescopic slide 42 to retract properly into the sleeve 41, initially compressing the spring 43. At this point, the center of the drive axle housing rises above the plane of the annular flange 32. The curved structure at the center of the drive axle housing is fully retained within the retaining groove.

[0055] The above-mentioned support and locking structure 3 also includes a plurality of circumferentially distributed locking tongue structures. When the drive axle housing is loaded into the limiting groove, the locking tongue structures are circumferentially locked and pressed against the central part of the drive axle housing.

[0056] The lock tongue structure includes a rotary pressing cylinder 33 , a piston rod of which is fixedly connected to a driving rod 35 , and a top of which is fixedly connected to a pressing lock tongue 34 .

[0057] After the housing is loaded, the rotary downward-pressing cylinder 33 first rotates the downward-pressing locking tongue 34 until it is positioned above the edge of the drive axle housing's central structure. The drive rod 35 then descends, following the piston rod, to the downward-pressing locking tongue 34, pressing the central structure downward on all sides. During this process, the spring further compresses, and the telescopic slide 42 further retracts into the sleeve 41. This method fully locks the central portion of the housing's outer perimeter.

[0058] Example 2

[0059] like Figures 1-4 As shown, in this embodiment, based on the structure of embodiment 1, the end shaft locking structure 2 includes a lower locking rod 21 and an upper locking rod 22 that cooperates with the lower locking rod 21;

[0060] The lower locking rod 21 is integrally formed with a lower arc portion, and the upper locking rod 22 is integrally formed with an upper arc portion that matches the lower arc portion. Both ends of the lower locking rod 21 are integrally formed with L-shaped mounting portions, which are fixedly mounted on the workbench 1.

[0061] The end shaft of the drive axle housing is locked between the lower and upper arcuate portions. Specifically, the end shaft locking structure 2 includes a cylinder structure spaced apart on either side for driving the upper locking rod 22 downward. The cylinder structure includes cylinders 23 spaced apart on either side, the piston rods of which are fixedly connected to mounting rods 231. Mounting rods 231 are slidably connected to the lower locking rod 21, which is fixedly mounted to the upper locking rod 22.

[0062] At the same time, spring members are mounted between the ends of the lower locking rod 21 and the upper locking rod 22. The spring members include a spring rod 24 fixedly connected to the lower locking rod 21 and slidably connected to the upper locking rod 22. A short spring 241 is sleeved on the spring rod 24 (the ends of the short spring 241 are fixedly connected to the side walls of the lower locking rod 21 and the upper locking rod 22 that face each other).

[0063] During operation, driven by the cylinder 23, the upper locking rod 22 is pressed down onto the lower locking rod 21, and the lower arc-shaped portion and the upper arc-shaped portion of the upper locking rod 22 and the lower locking rod 21 are locked and clamped on the two ends (axial structure) of the drive axle housing. During this process, the spring rod 24 slides relative to the upper locking rod 22, and the short spring is compressed. The compression of the short spring realizes the protection of the housing structure during the process of locking the drive axle housing structure.

[0064] 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 outer circle tooling, characterized in that: It includes a tooling table, the top of which is fixedly connected with a locking mechanism for locking the drive axle housing; The locking mechanism includes an end shaft locking structure respectively locked on the shaft-shaped structures at both ends of the drive axle housing and a support locking structure supported and locked on the center part of the drive axle housing; The support and locking structure includes a curved seat that limits the center of the drive axle housing, and the curved seat is provided with a limiting groove corresponding to the shape of the drive axle housing; The notch of the limiting groove is fixedly connected with an annular flange; The annular flange is fixedly connected to the top of the tooling table through a plurality of spring connectors; The support and locking structure further comprises a plurality of circumferentially distributed locking tongue structures. When the drive axle housing is loaded into the limiting groove, the locking tongue structures are circumferentially locked and pressed against the central portion of the drive axle housing.

2. The forklift drive axle outer diameter tooling according to claim 1, characterized in that: The spring connector includes a telescopic slide rod fixedly connected to the bottom of the annular flange, and the telescopic slide rod is slidably connected to a sleeve; The bottom of the sleeve is fixedly connected with a mounting seat, and the mounting seat is fixedly mounted on the top position of the tooling table by a plurality of bolts.

3. The forklift drive axle outer diameter tooling according to claim 2, characterized in that: The spring connector also includes a spring sleeved on the telescopic slide rod, and the top of the sleeve is fixedly connected to an annular spring seat; The two ends of the spring are respectively fixedly connected to the bottom of the annular flange and the top of the annular spring seat.

4. The forklift drive axle outer circle tooling according to claim 1, characterized in that: The lock tongue structure comprises a rotary downward pressing cylinder, a piston rod of the rotary downward pressing cylinder is fixedly connected to a driving rod, and a top of the driving rod is fixedly connected to the downward pressing lock tongue.

5. The forklift drive axle outer diameter tooling according to claim 1, characterized in that: The end shaft locking structure includes a lower locking rod and an upper locking rod cooperating with the lower locking rod; The lower locking rod is integrally formed with a lower arc-shaped portion, and the upper locking rod is integrally formed with an upper arc-shaped portion that matches the lower arc-shaped portion; The end shaft position of the drive axle housing is locked between the lower arc-shaped portion and the upper arc-shaped portion.

6. The forklift drive axle outer diameter tooling according to claim 5, characterized in that: Both ends of the lower locking rod are integrally formed with mounting portions, and the mounting portions are fixedly mounted on the workbench; The mounting portion is L-shaped.

7. The forklift drive axle outer diameter tooling according to claim 5, characterized in that: The end shaft locking structure also includes cylinder structures spaced apart on both sides for driving the upper locking rod to descend; The cylinder structure comprises cylinders spaced apart on both sides, wherein the piston rods of the cylinders are fixedly connected to mounting rods; The installation rod is slidably connected to the lower locking rod, and the installation rod is fixedly installed on the upper locking rod.

8. The forklift drive axle outer diameter tooling according to claim 5, characterized in that: Spring components are respectively assembled and connected between the two ends of the lower locking rod and the upper locking rod.

9. The forklift drive axle outer diameter tooling according to claim 8, characterized in that: The spring member includes a spring rod fixedly connected to the lower locking rod, and the spring rod is slidably connected to the upper locking rod; A short spring is sleeved on the spring rod.

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