A hydraulic cylinder machining support assembly

Abstract

The utility model discloses a kind of supporting assemblies for hydraulic oil cylinder processing, belong to hydraulic oil cylinder production and processing technical field, the device includes pedestal, fixed part and clamping part. Among them, four fixed parts are provided, two are a group, the fixed part of each group is symmetrically arranged on pedestal, one clamping part is rotatably connected on each fixed part, and the notch of circular arc is equipped on clamping part and fixed part. And fixed part moves on pedestal, when two symmetrically arranged fixed parts mutually move to most close, the notch on clamping part and fixed part is combined to form a clamping space. The utility model has the advantages that: the clamping space formed can form face clamping to the side cylinder wall of hydraulic oil cylinder, effectively alleviate the problem that stress is too concentrated when supporting assembly of prior art clamps hydraulic oil cylinder.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder manufacturing and processing technology, specifically to a support component for hydraulic cylinder processing. Background Technology

[0002] In the manufacturing process of hydraulic cylinders, the assembly of the cylinder barrel and piston is a crucial step. After the cylinder barrel and piston are machined separately, the cylinder barrel needs to be securely fixed by a support assembly so that the piston can be smoothly assembled into it.

[0003] Currently available traditional support components generally employ a double-clamping block structure, fixing the cylinder by driving two clamping blocks to move towards each other. However, this clamping method has significant drawbacks: firstly, the cylinder is suspended during clamping, lacking a stable support surface; secondly, because the outer surface of the cylinder is a curved surface, the rigid clamping blocks cannot fully conform to it. These two points result in point contact between the clamping blocks and the cylinder, which causes stress concentration at the contact point. Excessive local clamping stress can easily damage the cylinder surface, and in severe cases, even cause cylinder deformation, thereby affecting the overall machining accuracy and product performance of the hydraulic cylinder, adversely impacting subsequent production, assembly, and use. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a support assembly for hydraulic cylinder machining, thereby solving the problem that existing support assemblies easily cause stress concentration when clamping the cylinder barrel, leading to damage to the cylinder barrel's surface.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a support assembly for machining hydraulic cylinders, comprising: a fixing part, wherein the fixing part is provided with a clamping part rotatably connected thereto, and both the fixing part and the clamping part are provided with notches; wherein, four fixing parts are provided, the four fixing parts are symmetrical in pairs and movable on the base, and when two symmetrically arranged fixing parts move to the closest point, the notches of the clamping part and the fixing part close together to form a clamping space, and the clamping space forms a surface clamping of the hydraulic cylinder.

[0006] Optionally, a first lead screw is rotatably mounted on the base, and a first threaded seat is threadedly connected to the first lead screw, with the first threaded seat fixed to the bottom end of the fixed part.

[0007] Optionally, a cylinder is rotatably connected to the first threaded seat, and the end of the cylinder away from the first threaded seat is rotatably connected to the clamping part. Optionally, in the hydraulic cylinder machining support assembly as claimed in claim 1, the first lead screw is a positive and negative lead screw, and two first threaded seats located on the same first lead screw are threadedly connected to the positive and negative threads of the first lead screw.

[0008] Optionally, a second lead screw is rotatably mounted on the base, and a second threaded seat is threadedly connected to the second lead screw. The second threaded seat is provided with a pushing part for pushing the bottom of the hydraulic cylinder.

[0009] Optionally, the pushing part is L-shaped and includes a vertically arranged pushing surface and a horizontally arranged moving surface. The pushing surface is in close contact with the bottom of the hydraulic cylinder, and the moving surface is fixed on the second threaded seat.

[0010] Optionally, a pad is provided within the notch.

[0011] Optionally, multiple pads are provided, and these multiple pads are grouped into groups of four, with each group of pads having a different thickness.

[0012] Optionally, the two symmetrical clamping parts are fixed together by a snap-fit ​​structure.

[0013] Optionally, both ends of the first lead screw and the second lead screw are connected to fixed seats via bearings, the fixed seats are fixed on the base, and a crank is fixed to one end of both the first lead screw and the second lead screw.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention features four fixing parts on a base, arranged in two groups of two symmetrically arranged parts. Each fixing part is rotatably connected to a clamping part. Both the clamping and fixing parts have notches, which together form a clamping space. This clamping space provides surface clamping for the cylinder. Compared to existing technologies, this invention solves the problem of the cylinder being suspended and lacking a support surface. Furthermore, the surface clamping effectively disperses clamping stress, thereby protecting the surface of the cylinder.

[0016] Meanwhile, this utility model also provides a pusher, the position of which is adjusted by a second lead screw. After the clamping space clamps the cylinder, the position of the pusher is adjusted to make it tightly abut against the bottom wall of the cylinder. This can provide abutment force to the cylinder when assembling the piston, thereby avoiding scratches or damage to the cylinder caused by friction with the clamping space when assembling the piston.

[0017] In addition, this utility model also provides several sets of pads, with four pads in each set, all set in the notch. Each set of pads has a different size. By replacing pads of different sizes, the size of the clamping space can be limited, so as to adjust the cylinders of different diameters. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This utility model discloses an overall three-dimensional structure of a support assembly for machining hydraulic cylinders. Figure 1 .

[0020] Figure 2 This is a partial three-dimensional view of a support assembly for machining a hydraulic cylinder according to the present invention.

[0021] Figure 3 This is a partial front view of a support assembly for machining a hydraulic cylinder according to the present invention.

[0022] Figure 4 This utility model discloses an overall three-dimensional structure of a support assembly for machining hydraulic cylinders. Figure 2 .

[0023] Figure 5 This utility model relates to a support assembly for machining hydraulic cylinders. Figure 4 Enlarged view of point A in the middle.

[0024] Figure 6 This is a schematic diagram showing the positional relationship between the pad, fixing part, and clamping part of a support assembly for machining a hydraulic cylinder according to this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Fixing part; 2. Clamping part; 3. Notch; 4. First threaded seat; 5. First lead screw; 6. Cylinder; 7. Pushing part; 8. Second threaded seat; 9. Second lead screw; 10. Pad; 11. Base. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] As mentioned earlier, most traditional support components on the market currently employ a double-clamping block structure, using two clamping blocks moving towards each other to fix the cylinder. However, this clamping method has significant drawbacks: firstly, the cylinder is suspended in mid-air during clamping, lacking a stable support surface; secondly, because the outer surface of the cylinder is a curved surface, the rigid clamping blocks cannot fully conform to it. These two points result in point contact between the clamping blocks and the cylinder, which leads to stress concentration at the contact points. Excessive local clamping stress can easily damage the cylinder surface, and in severe cases, even cause cylinder deformation, thereby affecting the overall machining accuracy and product performance of the hydraulic cylinder, adversely impacting subsequent production, assembly, and use.

[0029] Therefore, this utility model provides a support assembly that addresses the support problem of hydraulic cylinders during production and processing. By changing the point clamping method of the cylinder barrel in traditional support assemblies to a surface clamping method, stress is dispersed, thereby achieving effective protection of the cylinder barrel surface and solving the aforementioned problem. This utility model solves the problem in the following way.

[0030] Example 1:

[0031] Please refer to the instruction manual appendix. Figures 1 to 3 As shown in the figure, this embodiment provides a support assembly for machining hydraulic cylinders. The support assembly includes a base 11 with four bearing mounting seats on the base 11. These four mounting seats are symmetrically arranged in two groups, and each group of mounting seats contains a first lead screw 5. The first lead screw 5 is a reverse lead screw, meaning its threads are arranged in opposite directions from the middle to both ends. Furthermore, each of these two oppositely oriented threads is threaded with a first threaded seat 4 (two in total, arranged symmetrically). A crank is fixed to one end of the first lead screw 5. Cranking the crank causes the first lead screw 5 to rotate, and under the influence of the threaded connection, the two first threaded seats 4 move in directions that are close to or far apart.

[0032] In this first embodiment, as Figures 1 to 3 As shown, a fixing part 1 is fixed on the first threaded seat 4, and two fixing parts 1 located on the same first lead screw 5 are symmetrically arranged. A clamping part 2 is also rotatably connected to the fixing part 1 via a hinge. Both the clamping part 2 and the fixing part 1 have the following... Figure 2 , Figure 3As shown, the arc-shaped notches 3, when the two first threaded seats 4 abut together, have their fixing parts 1 closest together. In this state, the four arc-shaped notches 3 enclose each other, forming an arc-shaped clamping space. This clamping space tightly abuts against the side of the hydraulic cylinder barrel through the arc surface of the notches 3, forming a surface clamping on the side of the cylinder barrel. At the same time, the notches 3 on the fixing parts 1 also provide an upward supporting force to the cylinder barrel. Compared with the cylinder barrel suspension achieved by using clamping force in the prior art, this supporting force has the function of protecting the outer surface of the cylinder barrel. At the same time, the surface clamping also allows the clamping stress to be distributed to various parts of the side of the cylinder barrel during the clamping action, thereby avoiding the problem of stress concentration caused by excessive concentration at one point, and further protecting the cylinder barrel surface from damage.

[0033] In this first embodiment, as Figures 1 to 3 As shown, a cylinder 6 is rotatably connected to the top surface of the first threaded seat 4 away from the fixed part 1. The other end of the cylinder 6 is rotatably connected to the clamping part 2 and connected to the controller. In use, the controller can extend or retract the cylinder 6, thereby changing the state of the clamping part 2.

[0034] Therefore, in the specific implementation of this embodiment, in the initial state, the cylinder 6 is in a retracted state. At this time, the clamping part 2 changes with the state of the cylinder 6, forming an upward-facing opening. Simultaneously, the cranking hand drives the first lead screw 5 to rotate, thereby moving the two symmetrical fixing parts 1 to a preset position. Then, the cylinder is hoisted onto the opening using a hoisting device, so that the surface of the cylinder is placed on the notch 3 of the fixing part 1. The cylinder 6 is driven, causing the clamping part 2 to rotate until the notch 3 of the clamping part 2 abuts against the outer surface of the cylinder, and the snap-fit ​​structure on the clamping part 2 is engaged, thereby fixing the position of the clamping part 2. At this time, the clamping space forms a surface clamping on the outer surface of the cylinder. The operator can then assemble the hydraulic cylinder.

[0035] Example 2:

[0036] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides an embodiment two. In this embodiment two, as... Figures 4 to 5 As shown, a second lead screw 9 is rotatably mounted on the base 11 (its rotatable connection to the base 11 is the same as that of the first lead screw 5, and therefore will not be described again here). The second lead screw 9 is perpendicular to the first lead screw 5, and a second threaded seat 8 is threadedly connected to the second lead screw 9. A pushing part 7 is mounted on the second threaded seat 8. The pushing part 7 is L-shaped and includes a vertically arranged pushing surface and a horizontally arranged moving surface. The pushing surface is tightly abutted against the bottom of the hydraulic cylinder, and the moving surface is fixed on the second threaded seat 8.

[0037] Therefore, in the specific implementation of this second embodiment, after the cylinder is clamped as in the first embodiment, the crank on the second lead screw 9 is turned to move the second threaded seat 8, causing the second threaded seat 8 to move the pushing part 7 on it until the pushing surface enters and abuts against the bottom wall of the cylinder, thus completing the fixation. At this time, the knocking generated during piston assembly will be transmitted from the bottom wall of the cylinder to the pushing part 7 and offset by the supporting force. Compared with the prior art that uses the clamping friction between the two clamping blocks to offset the knocking force, the technology of this second embodiment can better protect the side wall of the cylinder from scratches and damage.

[0038] Example 3:

[0039] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides an embodiment three. In this embodiment three, as... Figure 6 As shown, a pad 10 is provided in the notch 3 of both the fixing part 1 and the clamping part 2. Four pads 10 are provided in the four notches 3. These four pads 10 form a group, and each group of pads 10 has a different thickness. Therefore, when the cylinder diameter is smaller than the clamping space formed by the four notches 3, pads 10 can be inserted into the notches 3. Different pads 10 are inserted according to different cylinder diameters, thereby achieving the adaptation to cylinders of different specifications.

[0040] Therefore, in summary, compared with the prior art, this utility model and its embodiments have the following advantages, including but not limited to:

[0041] This invention features four fixing parts 1 on the base 11, arranged in two groups of two symmetrically arranged parts. Each fixing part 1 is rotatably connected to a clamping part 2. Both the clamping part 2 and the fixing part 1 have notches 3, which together form a clamping space. This clamping space provides surface clamping for the cylinder. Compared to existing technologies, this invention solves the problem of the cylinder being suspended and lacking a support surface. Furthermore, the surface clamping effectively disperses clamping stress, thereby protecting the surface of the cylinder.

[0042] Meanwhile, this utility model also provides a pusher 7, the position of which is adjusted by the second lead screw 9. When the clamping space clamps the cylinder, the position of the pusher 7 is adjusted to make it tightly abut against the bottom wall of the cylinder, which can provide abutting force for the cylinder when assembling the piston, thereby avoiding scratches or damage to the cylinder caused by friction with the clamping space when assembling the piston.

[0043] In addition, this utility model also provides several sets of pads 10, with four pads 10 in each set, all set in the notch 3. Each set of pads 10 has a different size. By replacing pads 10 of different sizes, the size of the clamping space is limited so as to adjust the cylinders of different diameters.

[0044] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A support assembly for hydraulic cylinder machining, characterized by, include: The fixing part (1) is provided with a clamping part (2) rotatably connected thereto, and both the fixing part (1) and the clamping part (2) are provided with notches (3). There are four fixing parts (1). These four fixing parts (1) are symmetrical in pairs and move on the base (11). When two symmetrically arranged fixing parts (1) move to the closest point, the notch (3) of the clamping part (2) and the fixing part (1) surrounds and forms a clamping space. The clamping space forms a surface clamping of the hydraulic cylinder.

2. The support assembly for machining a hydraulic cylinder as described in claim 1, characterized in that, A first lead screw (5) is rotatably mounted on the base (11), and a first threaded seat (4) is threadedly connected to the first lead screw (5). The first threaded seat (4) is fixed to the bottom end of the fixing part (1).

3. The support assembly for machining a hydraulic cylinder as described in claim 2, characterized in that, A cylinder (6) is rotatably connected to the first threaded seat (4), and the end of the cylinder (6) away from the first threaded seat (4) is rotatably connected to the clamping part (2).

4. A support assembly for machining a hydraulic cylinder as described in claim 2, characterized in that, The first lead screw (5) is a positive and negative lead screw, and two first thread seats (4) located on the same first lead screw (5) are threadedly connected to the positive and negative threads of the first lead screw (5).

5. A support assembly for machining a hydraulic cylinder as described in claim 2, characterized in that, A second lead screw (9) is rotatably mounted on the base (11). A second threaded seat (8) is threadedly connected to the second lead screw (9). A pushing part (7) for pushing the bottom of the hydraulic cylinder is provided on the second threaded seat (8).

6. A support assembly for machining a hydraulic cylinder as described in claim 5, characterized in that, The push part (7) is L-shaped and includes a vertically arranged push surface and a horizontally arranged moving surface. The push surface is in close contact with the bottom of the hydraulic cylinder, and the moving surface is fixed on the second threaded seat (8).

7. A support assembly for machining a hydraulic cylinder as described in claim 1, characterized in that, A pad (10) is provided inside the notch (3).

8. A support assembly for machining a hydraulic cylinder as described in claim 7, characterized in that, The pads (10) are provided in multiple groups of four, and each group of pads (10) has a different thickness.

9. A support assembly for machining a hydraulic cylinder as described in claim 1, characterized in that, The two symmetrical clamping parts (2) are fixed together by a snap-fit ​​structure.

10. A support assembly for machining a hydraulic cylinder as described in claim 5, characterized in that, Both ends of the first lead screw (5) and the second lead screw (9) are connected to fixed seats by bearings. The fixed seats are fixed on the base (11). One end of the first lead screw (5) and the second lead screw (9) is fixed with a crank.

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