Internal support lifting appliance tool

Abstract

The utility model relates to the technical field of lifting appliance equipment, in particular to an inner supporting lifting appliance tool which comprises a lifting rod, three hinge seats and at least three attaching assemblies. The lifting rod is vertically arranged; the hinged seat comprises an upper hinged seat, a middle hinged seat and a lower hinged seat which are sequentially arranged from top to bottom in the vertical direction, the upper hinged seat, the middle hinged seat and the lower hinged seat are arranged at intervals, the middle hinged seat is arranged close to the lower hinged seat, and the upper hinged seat is arranged on the lifting rod in a sleeving mode and reciprocates in the vertical direction; the middle hinge seat and the lower hinge seat are fixedly connected with the lifting rod respectively; the attaching assemblies are located on the outer sides of the hinge seats, one attaching assembly is hinged to the upper hinge seat, the middle hinge seat and the lower hinge seat at the same time through the corresponding connecting rods, and the at least three attaching assemblies are arranged in the circumferential direction of the lifting rod at equal intervals. Workpieces needing to be machined can be tightly supported and lifted, clamping is convenient, operation is easy and convenient, the working efficiency is improved, universality is high, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to an internal support lifting tooling. Background Art

[0002] A gear shaper is a machine tool used for machining gears, spline shafts and other similar parts. Its working principle is that the cutting tool (i.e., the gear shaper cutter) performs a cutting motion along the axial direction of the workpiece, and at the same time the workpiece rotates around its own axis to form the required tooth profile. The gear shaper can machine various types of gears such as straight teeth, helical teeth and bevel gears, and can complete the rough machining and finish machining of gears in one clamping. Compared with other gear machining methods (such as hobbing, shaving, etc.), the advantage of the gear shaper is that it can machine gear components with internal gears or blind holes, and can achieve a better self-centering effect during the machining process.

[0003] In the traditional gear shaper machining, the loading of the workpiece is a key step. The existing methods for loading the workpiece are manual handling or with the aid of traditional fixtures; manual handling is time-consuming and laborious, and when using traditional fixtures such as three-jaw chucks, four-jaw chucks, etc., when facing workpieces of different sizes, it is necessary to frequently replace or adjust the fixtures, which also consumes a large amount of preparation time and labor; there are also some that use special fixtures, although they can provide good clamping effects, but they are usually only applicable to specific types of workpieces. Once the workpiece specifications change, it is necessary to re-design or purchase new fixtures, increasing the cost and reducing the flexibility of the production line. Summary of the Utility Model

[0004] In view of this, the technical problem to be solved by the utility model is: to provide an internal support lifting tooling that can tighten and lift the workpiece to be machined, is convenient for clamping, has simple operation, improves work efficiency, has strong versatility, and reduces production costs.

[0005] To solve the above technical problem, the technical solution of the utility model is:

[0006] The internal support lifting tooling includes a lifting rod, three hinge seats, and at least three fitting components;

[0007] The lifting rod is arranged vertically;

[0008] The hinge seat includes an upper hinge seat, a middle hinge seat and a lower hinge seat which are arranged in sequence from top to bottom in the vertical direction. There is a distance between the upper hinge seat, the middle hinge seat and the lower hinge seat. The middle hinge seat is arranged close to the lower hinge seat. The upper hinge seat is sleeved on the lifting rod and reciprocates vertically. The middle hinge seat and the lower hinge seat are respectively fixedly connected to the lifting rod;

[0009] The fitting assembly is located outside the hinge seat. One fitting assembly is simultaneously hinged to the upper hinge seat, the middle hinge seat, and the lower hinge seat through respective corresponding connecting rods, and at least three fitting assemblies are arranged equidistantly along the circumference of the lifting rod.

[0010] Preferably, a pressing sleeve is slidably arranged on the lifting rod. The pressing sleeve is vertically arranged above the upper hinge seat and fixedly connected thereto, and two pressing rings are fixedly arranged on the pressing sleeve.

[0011] Preferably, a support sleeve is fixedly installed on the lifting rod. The support sleeve is vertically arranged below the lower hinge seat and fixedly connected to the lower hinge seat.

[0012] Preferably, the support sleeve and the pressing sleeve have the same structure and are arranged oppositely along the vertical direction.

[0013] Preferably, a support sleeve is fixedly installed on the lifting rod. The support sleeve is arranged between the middle hinge seat and the lower hinge seat and is fixedly connected to the middle hinge seat and the lower hinge seat simultaneously.

[0014] Preferably, a limiting step is formed on the lifting rod. The limiting step is arranged between the upper hinge seat and the middle hinge seat and is used to limit the free sliding of the upper hinge seat.

[0015] Preferably, a lifting ring is fixedly installed at the top of the lifting rod.

[0016] Preferably, the upper hinge seat, the middle hinge seat, and the lower hinge seat have the same structure; each includes a hinge seat body in a ring structure, and at least three hinge ears are fixedly arranged equidistantly on the outer periphery of the hinge seat body. The number of hinge ears is the same as the number of fitting assemblies.

[0017] Preferably, the fitting assembly includes a fitting seat and a fitting block;

[0018] The fitting seat is simultaneously hinged to the upper hinge seat, the middle hinge seat, and the lower hinge seat through respective corresponding connecting rods;

[0019] The fitting block is installed on the fitting seat along the radial direction of the lifting rod.

[0020] Preferably, a receiving groove is formed on the fitting seat, and the connecting rod is hinged in the receiving groove;

[0021] The hinged part of the middle hinge seat and the fitting seat is arranged close to the hinged part of the upper hinge seat and the fitting seat.

[0022] After adopting the above technical solutions, the beneficial effects of the present utility model are:

[0023] In the present utility model, a lifting rod, three hinge seats, and at least three fitting components are provided. Among them, the lifting rod is vertically arranged. The hinge seats include an upper hinge seat, a middle hinge seat, and a lower hinge seat that are sequentially arranged from top to bottom along the vertical direction. There are spaces between the upper hinge seat, the middle hinge seat, and the lower hinge seat. The middle hinge seat is arranged close to the lower hinge seat. The upper hinge seat is sleeved on the lifting rod and reciprocates vertically. The middle hinge seat and the lower hinge seat are respectively fixedly connected to the lifting rod. The fitting components are located outside the hinge seats. One fitting component is simultaneously hinged to the upper hinge seat, the middle hinge seat, and the lower hinge seat through their respective corresponding connecting rods. At least three fitting components are arranged equidistantly along the circumferential direction of the lifting rod. After the lifting rod drives the three fitting components to be placed in the inner hole of the workpiece, by pressing down the upper hinge seat, the three fitting components are driven to move radially outward along the lifting rod at the same time, and the inner hole of the workpiece is internally supported. After it is tightened, the lifting rod is lifted. During the lifting process, the workpiece is driven to move together, meeting the requirement of tightening and lifting the workpiece, and it is convenient for clamping. At the same time, it can be applied to workpieces with different inner diameters. It only needs to ensure that the fitting components are attached to the inner hole of the workpiece. During the lifting process, the weight of the workpiece itself can ensure that the fitting components are always attached to the inner hole to prevent falling. After the workpiece is lifted to a suitable position, only the upper hinge seat needs to be lifted, and the fitting components are contracted through the connecting rods to move radially inward along the lifting rod, so that the fitting components are separated from the inner hole of the workpiece, and it can be taken out of the inner hole. The operation is simple and the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] Figure 1 is a schematic structural diagram of the internal support lifting tooling of the embodiment of the present utility model;

[0026] Figure 2 is Figure 1 a schematic structural diagram of the lower hinge seat in

[0027] Figure 3 is Figure 1 a schematic structural diagram of the fitting component in

[0028] In the figure:

[0029] 1. Lifting rod; 11. Limit step; 12. Lifting ring;

[0030] 2. Hinge seat; 21. Upper hinge seat; 22. Middle hinge seat; 23. Lower hinge seat; 231. Hinge seat body; 232. Hinge ear;

[0031] 3. Fitting component; 31. Fitting seat; 32. Fitting block; 33. Accommodating groove;

[0032] 4. Connecting rod;

[0033] 5. Lower pressing sleeve; 51. Pressing ring;

[0034] 6. Support sleeve;

[0035] 7. Support sleeve barrel. Specific implementation manner

[0036] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0037] As Figures 1 to 3 collectively shown, the present utility model includes a lifting rod 1, three hinge seats 2, and at least three fitting components 3; wherein, the lifting rod 1 is arranged vertically; the hinge seat 2 includes an upper hinge seat 21, a middle hinge seat 22, and a lower hinge seat 23 which are arranged in sequence from top to bottom along the vertical direction. There is a distance between the upper hinge seat 21, the middle hinge seat 22, and the lower hinge seat 23. The middle hinge seat 22 is arranged close to the lower hinge seat 23. The upper hinge seat 21 is sleeved on the lifting rod 1 and reciprocates vertically. The middle hinge seat 22 and the lower hinge seat 23 are respectively fixedly connected to the lifting rod 1; in this application, the upper hinge seat 21 can move up and down along the lifting rod 1, while the middle hinge seat 22 and the lower hinge seat 23 are stationary. Thus, the fitting components 3 are adjusted by the upper hinge seat 21.

[0038] The fitting components 3 are located outside the hinge seat 2. One fitting component 3 is simultaneously hinged to the upper hinge seat 21, the middle hinge seat 22, and the lower hinge seat 23 through their respective corresponding connecting rods 4. At least three fitting components 3 are arranged equidistantly along the circumference of the lifting rod 1. The three fitting components 3 ensure the stability when lifting the workpiece.

[0039] Among them, after the lifting rod 1 drives the three fitting components 3 to be placed in the inner hole of the workpiece, by pressing down the upper hinge seat 21, the three fitting components 3 are driven to move radially outward along the lifting rod 1 at the same time, and the inner hole of the workpiece is internally supported. After it is tightened, the lifting rod 1 is lifted. During the lifting process, the workpiece is driven to move together, meeting the requirement of tightening and lifting the workpiece, and facilitating clamping; at the same time, it can be applied to workpieces with different inner diameters. It only needs to ensure that the fitting components 3 are attached to the inner hole of the workpiece. During the lifting process, the weight of the workpiece itself can ensure that the fitting components 3 always adhere to the inner hole to prevent falling; after the workpiece is lifted to a suitable position, only the upper hinge seat 21 needs to be lifted, and the fitting components 3 are contracted through the connecting rod 4 to move radially inward along the lifting rod 1, so that the fitting components 3 are separated from the inner hole of the workpiece, and it can be taken out from the inner hole. The operation is simple and the work efficiency is improved.

[0040] In this application, a pressing sleeve 5 is slidably arranged on the lifting rod 1. The pressing sleeve 5 is vertically arranged above the upper hinge seat 21 and fixedly connected thereto. Two pressing rings 51 are fixedly arranged on the pressing sleeve 5. The pressing sleeve 5 is used to apply pressure to the upper hinge seat 21. During use, by holding the pressing rings 51 by hand, the upper hinge seat 21 can be pressed down or lifted by means of the pressing sleeve 5. A support sleeve 6 is fixedly installed on the lifting rod 1. The support sleeve 6 is vertically arranged below the lower hinge seat 23 and fixedly connected to the lower hinge seat 23. The support sleeve 6 supports the lower hinge seat 23, improves the support strength for the workpiece, prevents the lower hinge seat 23 from splitting from the lifting rod 1, and improves the connection strength between the two. The support sleeve 6 and the pressing sleeve 5 have the same structure and are arranged oppositely along the vertical direction. It should be noted that the support sleeve 6 is fixedly connected to the lifting rod 1, and the pressing sleeve 5 is slidably connected to the lifting rod 1. Although their structures are the same, their functions are different. The support sleeve 6 is used to enhance the support strength of the lower hinge seat 23 for the workpiece, while the pressing sleeve 5 is used to apply pressure to the upper hinge seat 21 to enhance the convenience of applying pressure to the upper hinge seat 21.

[0041] Among them, a support sleeve 7 is fixedly installed on the lifting rod 1. The support sleeve 7 is arranged between the middle hinge seat 22 and the lower hinge seat 23 and is fixedly connected to both the middle hinge seat 22 and the lower hinge seat 23 at the same time. On the basis that the middle hinge seat 22 and the lower hinge seat 23 are both fixedly connected to the lifting rod 1, the support sleeve 7 connects the middle hinge seat 22 and the lower hinge seat 23 together at the same time, enhances the support strength of the middle hinge seat 22 for the workpiece, prevents the middle hinge seat 22 from splitting from the lifting rod 1, and improves the connection strength between the two.

[0042] In this application, a limiting step 11 is provided on the lifting rod 1. The limiting step 11 is arranged between the upper hinge seat 21 and the middle hinge seat 22 and is used to limit the free sliding of the upper hinge seat 21. In the free state, the upper hinge seat 21 will slide down along the lifting rod 1 under the influence of its own gravity. By providing the limiting step 11 on the lifting rod 1, the continuous sliding of the upper hinge seat 21 can be restricted. During use, it is convenient to lift the upper hinge seat 21 to place the fitting assembly 3 in the inner hole of the workpiece, improving the convenience of use.

[0043] It should be noted that the limiting step 11 is vertically arranged below the lower limit position of the downward movement of the upper hinge seat 21 to prevent affecting the downward movement of the upper hinge seat 21.

[0044] A lifting ring 12 is fixedly installed at the top of the lifting rod 1, which is convenient for lifting the lifting rod 1 through the lifting ring 12.

[0045] The structures of the upper hinge seat 21, the middle hinge seat 22 and the lower hinge seat 23 are the same; each includes a hinge seat body 231 in a ring structure, and at least three hinge ears 232 are fixedly arranged at equal intervals on the outer periphery of the hinge seat body 231. The number of the hinge ears 232 is the same as that of the fitting components 3. By arranging the hinge ears 232, it is convenient to be hinged with the fitting components 3 through the connecting rod 4.

[0046] Among them, the fitting component 3 includes a fitting seat 31 and a fitting block 32; the fitting seat 31 is simultaneously hinged with the upper hinge seat 21, the middle hinge seat 22 and the lower hinge seat 23 through the corresponding connecting rods 4 respectively; preferably, a receiving groove 33 is formed on the fitting seat 31, and the connecting rod 4 is hinged in the receiving groove 33; the hinged position of the middle hinge seat 22 and the fitting seat 31 is arranged close to the hinged position of the upper hinge seat 21 and the fitting seat 31. The fitting block 32 is installed on the fitting seat 31 along the radial direction of the lifting rod 1. Preferably, the fitting block 32 is detachably connected with the fitting seat 31 through a bolt, and the fitting block 32 includes an elastic nylon block.

[0047] When the present application is in use, the three fitting components 3 are driven by the lifting rod 1 and placed in the inner hole of the workpiece. The upper hinge seat 21 is pressed by the pressing sleeve 5. The upper hinge seat 21 drives the corresponding connecting rod 4 to move outwards, driving the three fitting components 3 to move outwards simultaneously to internally expand and tighten the inner hole of the workpiece. After tightening, the lifting ring 12 drives the lifting rod 1 to move upwards to lift and move the workpiece. After moving to a suitable position, the upper pressing sleeve 5 is lifted upwards to drive the upper hinge seat 21 to move upwards together, and the three fitting components 3 are contracted through the connecting rod 4. After contraction, the three fitting components 3 are moved out of the inner hole.

[0048] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Internal support sling tooling, characterized in that, It includes a lifting rod, three hinge seats, and at least three fitting components; The lifting rod is vertically arranged; The hinge seats include an upper hinge seat, a middle hinge seat, and a lower hinge seat arranged in sequence from top to bottom vertically. There are spaces between the upper hinge seat, the middle hinge seat, and the lower hinge seat. The middle hinge seat is arranged close to the lower hinge seat. The upper hinge seat is sleeved on the lifting rod and reciprocates vertically. The middle hinge seat and the lower hinge seat are respectively fixedly connected to the lifting rod; The fitting components are located outside the hinge seats. One fitting component is simultaneously hinged to the upper hinge seat, the middle hinge seat, and the lower hinge seat through their respective corresponding connecting rods. At least three of the fitting components are arranged equidistantly along the circumference of the lifting rod.

2. The internal support sling tooling according to claim 1, characterized in that, A pressing sleeve is slidably arranged on the lifting rod. The pressing sleeve is vertically arranged above the upper hinge seat and fixedly connected to it. Two pressing rings are fixed on the pressing sleeve.

3. The internal support sling tooling according to claim 2, characterized in that, A support sleeve is fixedly installed on the lifting rod. The support sleeve is vertically arranged below the lower hinge seat and fixedly connected to the lower hinge seat.

4. The internal support sling tooling according to claim 3, wherein, The support sleeve and the pressing sleeve have the same structure and are arranged oppositely vertically.

5. The internal support sling tooling according to claim 3, characterized in that, A support sleeve is fixedly installed on the lifting rod. The support sleeve is arranged between the middle hinge seat and the lower hinge seat and is fixedly connected to the middle hinge seat and the lower hinge seat simultaneously.

6. The internal support sling tooling according to claim 1, characterized in that, A limiting step is provided on the lifting rod. The limiting step is arranged between the upper hinge seat and the middle hinge seat and is used to limit the free sliding of the upper hinge seat.

7. The internal support sling tooling according to claim 1, wherein A lifting ring is fixedly installed at the top of the lifting rod.

8. The internal support sling tooling according to claim 1, characterized in that, The upper hinge seat, the middle hinge seat, and the lower hinge seat have the same structure; each includes a hinge seat body in a ring structure, and at least three hinge ears are fixedly arranged equidistantly on the outer circumference of the hinge seat body. The number of the hinge ears is the same as the number of the fitting components.

9. The inner support sling tooling according to claim 1, characterized in that, The fitting component includes a fitting seat and a fitting block; The fitting seat is simultaneously hinged to the upper hinge seat, the middle hinge seat, and the lower hinge seat through their respective corresponding connecting rods; The fitting block is installed on the fitting seat along the radial direction of the lifting rod.

10. The internal support sling tooling according to claim 9, characterized in that, A receiving groove is provided on the fitting seat, and the connecting rod is hinged in the receiving groove; The hinged position between the middle hinge seat and the fitting seat is arranged close to the hinged position between the upper hinge seat and the fitting seat.

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