Adjustable jacking device for machining jack oil cylinder barrel

Abstract

The utility model provides an adjustable jacking device for machining a jack oil cylinder barrel, which relates to the field of jack oil cylinder barrel machining equipment and comprises a mounting table, a threaded rod and a plurality of groups of first mounting plates distributed circumferentially are arranged on the mounting table, and an inner threaded seat is in threaded connection with the threaded rod. A sleeve located on the outer side of the threaded rod is rotationally connected to the inner threaded seat through a bearing, and a mounting shell allowing the threaded rod to penetrate through is arranged on the outer side of the sleeve. According to the device, the jacking and tensioning process can be conducted on inner holes of jack oil cylinder barrels of different specifications, the device is matched with a chuck to achieve the effect that clamping and jacking are conducted at the same time, and then the subsequent flat end face inverted boring angle machining procedure of the jack oil cylinder barrels can be started; and one set of device can be adapted to jack oil cylinder barrels with various inner diameter specifications, so that the problems that various conical discs are disorderly placed and are difficult to select are solved, meanwhile, the production cost is effectively reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of processing equipment for jack cylinder barrels, and more specifically, to an adjustable holding device for processing jack cylinder barrels. Background Technique

[0002] A jack refers to a light lifting device that uses a rigid lifting piece as a working device to lift a heavy object within a small stroke through a top bracket or a bottom pawl. The cylinder barrel is one of the important components of a jack.

[0003] During the processing of the jack cylinder barrel in a factory, the processes of flat end face boring and chamfering are usually required. This process can not only adjust the length of the cylinder barrel but also facilitate the efficient and smooth development of subsequent other deep processing operations.

[0004] Currently, this process is carried out by a one-clamp-one-support processing method on an ordinary lathe, that is, the front end is clamped by a chuck, and the rear end is supported by a taper disk. However, due to the different specifications and sizes of the cylinder barrels, there are often situations where the size of the taper disk does not match the inner diameter of the cylinder barrel. At this time, it is necessary to design taper disks of various sizes to complete the processing operations for cylinder barrels with different inner diameters. Once the number of taper disks is too large, problems such as chaotic placement and difficult selection are likely to occur, which will restrict the processing efficiency. At the same time, the processing cost increases. In addition, the operation of frequently disassembling and replacing taper disks of different sizes is troublesome. In summary, the holding effect of the jack cylinder barrel needs to be further improved. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems raised in the above background technique, and then a kind of adjustable holding device for processing jack cylinder barrels is proposed.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] An adjustable holding device for processing jack cylinder barrels includes a mounting table, on which a threaded rod and a plurality of groups of first mounting plates distributed circumferentially are arranged. An internally threaded seat is threadedly connected to the threaded rod. A sleeve located outside the threaded rod is rotatably connected to the internally threaded seat through a bearing. An installation shell allowing the threaded rod to pass through is arranged outside the sleeve. A plurality of groups of second mounting plates are circumferentially arranged on the installation shell and the second mounting plates correspond to the first mounting plates one by one. A connecting rod is rotatably connected to each group of first mounting plates. A supporting rod is rotatably connected to the connecting rod, and one end of the supporting rod is rotatably connected to the second mounting plate.

[0008] This device can perform a jacking and tightening process on the inner holes of jack cylinder barrels with different specifications. It cooperates with a chuck to achieve one clamping and one jacking, and then the subsequent flat-end face reverse boring and chamfering processing operation of the jack cylinder barrel can be started. Compared with the prior art, it does not require frequent disassembly and replacement of multiple taper disks. One set of device can adapt to jack cylinder barrels with multiple inner diameter specifications, thus avoiding the problems of messy placement and difficult selection of multiple taper disks. At the same time, the production cost is effectively reduced and the processing efficiency is improved.

[0009] Furthermore, a number of positioning holes are circumferentially arranged on the installation shell, and fixing bolts are fitted in the positioning holes. The fixing bolts pass through the positioning holes and are threadedly connected to the sleeve.

[0010] The above scheme realizes the firm installation of the installation shell on the sleeve through the cooperation of the positioning holes and the fixing bolts.

[0011] Furthermore, a rubber layer is provided on the surface of the support rod.

[0012] The above scheme can reduce the probability of the support rod hard contacting the inner hole wall of the jack cylinder barrel during the jacking and tightening process, thereby causing wear of the jack cylinder barrel, through the rubber layer.

[0013] Furthermore, a mounting hole for its layout is provided on the end face of the mounting table away from the threaded rod.

[0014] The above scheme can facilitate the accurate positioning and installation of this device on the lathe through the mounting hole.

[0015] Furthermore, an anti-slip pad is sleeved outside the internal thread seat.

[0016] The above scheme can make the operation effect of the staff on the internal thread seat better by setting the anti-slip pad.

[0017] Furthermore, both the connecting rod and the support rod are made of stainless steel.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] This device can perform a jacking and tightening process on the inner holes of jack cylinder barrels with different specifications. It cooperates with a chuck to achieve one clamping and one jacking, and then the subsequent flat-end face reverse boring and chamfering processing operation of the jack cylinder barrel can be started. Compared with the prior art, it does not require frequent disassembly and replacement of multiple taper disks. One set of device can adapt to jack cylinder barrels with multiple inner diameter specifications, thus avoiding the problems of messy placement and difficult selection of multiple taper disks. At the same time, the production cost is effectively reduced and the processing efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 This is a schematic diagram of the cooperation between this device and the jack cylinder barrel;

[0022] Figure 3 This is a schematic diagram of the sleeve installation;

[0023] Reference numerals:

[0024] 1. Installation table; 11. First installation plate; 12. Connecting rod; 13. Supporting rod; 2. Threaded rod; 3. Internal thread seat; 301. Bearing; 31. Sleeve; 4. Installation shell; 41. Second installation plate; 42. Positioning hole. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The present invention will be further described in conjunction with the drawings and embodiments:

[0026] As Figures 1 to 3 shown, an adjustable holding device for processing a jack cylinder barrel includes an installation table 1. A threaded rod 2 and a plurality of groups of first installation plates 11 distributed circumferentially are arranged on the installation table 1. An internal thread seat 3 is threadedly connected to the threaded rod 2. A sleeve 31 located outside the threaded rod 2 is rotatably connected to the internal thread seat 3 through a bearing 301. An installation shell 4 allowing the threaded rod 2 to pass through is arranged outside the sleeve 31. A plurality of groups of second installation plates 41 are circumferentially arranged on the installation shell 4 and the second installation plates 41 correspond to the first installation plates 11 one by one. A connecting rod 12 is rotatably connected to each group of first installation plates 11. A supporting rod 13 is rotatably connected to the connecting rod 12. One end of the supporting rod 13 is rotatably connected to the second installation plate 41. For the optimization of the solution, both the connecting rod 12 and the supporting rod 13 are made of stainless steel, so they are not easy to rust. At the same time, their corrosion resistance and strength are improved.

[0027] For the further refinement of the solution of the embodiment of the present invention, as Figure 1 and Figure 3 shown, a plurality of positioning holes 42 are circumferentially arranged on the installation shell 4. A fixing bolt is fitted in the positioning hole 42. The fixing bolt passes through the positioning hole 42 and is threadedly connected to the sleeve 31. The fixing bolt is not shown in the figure.

[0028] For the further refinement of the solution of the embodiment of the present invention, an installation hole for its layout is opened on the end face of the installation table 1 far from the threaded rod 2. The installation hole is not shown in the figure. Through the installation hole, it is convenient to accurately position and install this device on the lathe.

[0029] The working process of the present utility model:

[0030] First, one end of the jack cylinder is clamped by a chuck (the jack cylinder is shown without a label in the figure, and the chuck is not shown in the figure and belongs to the prior art without improvement). Then, the device is driven by a driving component to approach the other end of the jack cylinder. The schematic diagram of the cooperation between the jack cylinder and the device is as shown in the accompanying Figure 2 description. In the initial state, the center of the chuck and the center of the device are on the same straight line, and after the jack cylinder is installed on the chuck, the center of its inner hole is also on the same straight line as the center of the chuck. The driving component belongs to the prior art without improvement. Then, the threaded rod 2 will enter the inner hole of the jack cylinder, and at the same time, one end of several support rods 13 will contact the inner hole wall of the jack cylinder but not fit tightly. At this time, the internal thread seat 3 is rotated so that it can move along the direction of the threaded rod 2. The purpose is to realize the tensioning and fixing of the inner hole walls of jack cylinders of different specifications through the support rods 13;

[0031] When the internal thread seat 3 is rotated, due to the existence of the bearing 301 and the sleeve 31, the mounting shell 4 does not rotate with the internal thread seat 3. When the internal thread seat 3 moves towards the open end of the threaded rod 2, the tail end of the support rod 13 gradually approaches the mounting table 1, and then the tensioning of the inner hole of the jack cylinder with a small inner diameter can be realized;

[0032] When the internal thread seat 3 moves towards the blocked end of the threaded rod 2, the tail end of the support rod 13 gradually moves away from the mounting table 1, and then the tensioning of the inner hole of the jack cylinder with a large inner diameter can be realized. By different movement directions, the tensioning process of the inner holes of jack cylinders of different specifications can be realized; after the inner hole of the jack cylinder is stably and firmly tensioned, the subsequent flat end face and reverse boring and chamfering processing procedures can be started using a lathe;

[0033] This device can perform the process of holding and tensioning the inner holes of jack cylinders of different specifications. It cooperates with the chuck to achieve one clamping and one supporting, and then the subsequent flat end face and reverse boring and chamfering processing procedures of the jack cylinder can be started. Compared with the prior art, it does not require frequent disassembly and replacement of various cone disks. One set of devices can be adapted to jack cylinders with multiple inner diameter specifications, and thus problems such as messy placement and difficult selection of various cone disks will not occur. At the same time, the production cost is effectively reduced and the processing efficiency is improved.

[0034] In some embodiments, a rubber layer is provided on the surface of the support rod 13, and the rubber layer is not shown in the figure; in this embodiment, the rubber layer can reduce the probability of hard contact between the support rod 13 and the inner hole wall of the jack cylinder during the holding and tensioning process, thereby causing wear of the jack cylinder.

[0035] In other embodiments, an anti-slip pad is sleeved outside the internal thread seat 3, and the anti-slip pad is not shown in the figure; in this embodiment, by providing the anti-slip pad, the operation effect of the staff on the internal thread seat 3 can be better, and the probability of slipping during rotation can be reduced.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above-described embodiments and descriptions in the specification are only illustrative of the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all such changes and improvements fall within the scope of the present utility model claimed. The scope of protection of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable supporting device for machining a jack cylinder, characterized in that: The invention comprises a mounting platform (1), on which a threaded rod (2) and a plurality of groups of first mounting plates (11) distributed around a circle are arranged, the threaded rod (2) is threadedly connected to an internal threaded seat (3), the internal threaded seat (3) is rotatably connected to a sleeve (31) located outside the threaded rod (2) via a bearing (301), a mounting shell (4) allowing the threaded rod (2) to pass through is arranged outside the sleeve (31), a plurality of groups of second mounting plates (41) are circumferentially arranged on the mounting shell (4), and the second mounting plates (41) correspond to the first mounting plates (11) one by one, each group of first mounting plates (11) is rotatably connected to a connecting rod (12), a support rod (13) is rotatably connected to the connecting rod (12), and one end of the support rod (13) is rotatably connected to the second mounting plate (41).

2. The adjustable supporting device for jack cylinder processing according to claim 1, characterized in that: The mounting shell (4) is provided with a plurality of positioning holes (42) on its upper circumference. Fixing bolts are fitted in the positioning holes (42). The fixing bolts pass through the positioning holes (42) and are threadedly connected to the sleeve (31).

3. The adjustable supporting device for jack cylinder processing according to claim 1, characterized in that: The surface of the support rod (13) is provided with a rubber layer.

4. The adjustable supporting device for machining a jack cylinder according to claim 1, characterized in that: A mounting hole for the threaded rod (2) is provided on the end surface of the mounting platform (1) which is away from the threaded rod (2).

5. The adjustable supporting device for machining a jack cylinder according to claim 1, characterized in that: The outer side of the internal thread seat (3) is provided with an anti-slip pad.

6. The adjustable supporting device for jack cylinder processing according to claim 1, characterized in that: The connecting rod (12) and the supporting rod (13) are both made of stainless steel.

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