High-precision milling clamp for end face of hydraulic oil cylinder

Abstract

The hydraulic oil cylinder end face high-precision milling clamp comprises a balance weight base, a positioning disc and a positioning assembly, a fixed supporting plate is welded to the upper side of the balance weight base, the positioning disc is fixed to the upper side of the fixed supporting plate, a hollow groove is formed in the middle of the positioning disc, an opening is formed in the upper side of the hollow groove, and the positioning assembly is arranged in the hollow groove. An embedded groove is formed in the surface of the positioning disc, and a moving assembly is installed in the embedded groove. The rubber blocks at the ends of the three positioning plates can be attached to the outer side face of the hydraulic oil cylinder to clamp and position the hydraulic oil cylinder, the damping supporting block can be attached to the outer side face of the hydraulic oil cylinder in the clamping process by adjusting the damping supporting block to be suitable for the hydraulic oil cylinders of different sizes; the damping supporting blocks are matched with the spring dampers to relieve cutting chatter in the hydraulic oil cylinder end face milling process, and then the hydraulic oil cylinder end face milling precision can be improved conveniently.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder processing technology, specifically a high-precision milling fixture for the end face of a hydraulic cylinder. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy to perform linear reciprocating motion (or oscillating motion). Hydraulic cylinders are typically cylindrical in shape, and appropriate fixtures are required when milling the end face of a hydraulic cylinder.

[0003] Patent 201322038637.0 discloses a hydraulic cylinder grinding fixture. Similar hydraulic cylinder fixtures to the above patent still have the following shortcomings: Although they can position and clamp the hydraulic cylinder, hydraulic cylinder vibration will occur during grinding or milling. The fixture is not easy to reduce vibration when clamping, which makes the machining accuracy easily affected.

[0004] In view of this, we have studied and improved the existing structure and its shortcomings, and proposed a high-precision milling fixture for the end face of a hydraulic cylinder. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a high-precision milling fixture for the end face of a hydraulic cylinder.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-precision milling fixture for the end face of a hydraulic cylinder, comprising a counterweight base, a positioning plate, and a positioning assembly. A fixed support plate is welded to the upper side of the counterweight base, and a positioning plate is fixed to the upper side of the fixed support plate. A hollow groove is formed in the middle of the positioning plate, and an opening is provided on the upper side of the hollow groove. An embedded groove is provided on the surface of the positioning plate, and a moving assembly is installed inside the embedded groove. A positioning assembly is installed on one side of the moving assembly, and the positioning assembly includes a positioning plate, a rubber block, a vertical plate, a spring shock absorber, and a shock-absorbing support block. A rubber block is fixed to the bottom surface of the positioning plate, and a vertical plate is fixed to the outer side of the positioning plate. A spring shock absorber is installed on the lower side of the vertical plate, and a shock-absorbing support block is connected to the lower side of the spring shock absorber.

[0007] Furthermore, the moving component includes a fixed frame and a drive motor. Three fixed frames are evenly arranged, and the drive motor is installed on one side of the inside of each fixed frame.

[0008] Furthermore, the moving component includes a lead screw and a moving sleeve. The lead screw is provided on one side of the drive motor, and the moving sleeve is sleeved on the outer side of the lead screw. The moving sleeve is slidably connected to the inner wall of the fixed frame.

[0009] Furthermore, the movable component also includes a connecting block, the front side of the movable sleeve is fixed with the connecting block, the middle of the connecting block is fixed with a docking post, and the two sides of the connecting block are equipped with plug-in frames.

[0010] Furthermore, the positioning component also includes a docking hole and an insert block. The positioning plate has a docking hole in the middle, and the docking hole corresponds to the position of the docking post. The insert block is inserted into the insertion frame on both sides of the connecting block, and the insert block and the insertion frame are engaged.

[0011] Furthermore, an electric telescopic rod is installed on one side of the fixed support plate, and a movable support plate is fixed to one end of the electric telescopic rod. The movable support plate is slidably connected to the counterweight base, and a stop plate is fixed to the upper side of the movable support plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Equipped with a movable component, the three fixed frames are arranged in an array for even clamping. The drive motor drives the lead screw to rotate, which in turn moves the movable sleeve on the outside. Since the movable sleeve is slidably connected to the fixed frame, the movable sleeve can move closer to or further away from the center line of the hollow groove, thereby driving the connecting block and positioning plate to move. The synchronous drive allows the rubber blocks at the ends of the three positioning plates to fit against the outer side of the hydraulic cylinder for clamping and positioning. It is suitable for hydraulic cylinders of different sizes.

[0014] 2. A positioning component is provided. The mating hole of the positioning plate can be fitted onto the outside of the mating post of the connecting block. At the same time, the inserts on both sides of the positioning plate are engaged with the insertion frame of the connecting block. The outside of the mating post is provided with external threads, which can be locked with nuts to secure the positioning component. This facilitates the disassembly and replacement of positioning plate components of different sizes. During the clamping process, the shock-absorbing support block can fit against the outer side of the hydraulic cylinder. The inside of the shock-absorbing support block can be set as a honeycomb microporous structure. It works with the spring shock absorber to reduce cutting chatter during the milling process of the hydraulic cylinder end face, thereby improving the milling accuracy of the hydraulic cylinder end face. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the positioning disc of this utility model;

[0016] Figure 2 This is a schematic diagram of the positioning component of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model.

[0018] In the diagram: 1. Counterweight base; 2. Fixed support plate; 3. Positioning plate; 4. Hollow groove; 5. Opening; 6. Embedded groove; 7. Moving component; 701. Fixed frame; 702. Drive motor; 703. Lead screw; 704. Moving sleeve; 705. Connecting block; 8. Positioning component; 801. Positioning plate; 802. Rubber block; 803. Docking hole; 804. Insert block; 805. Vertical plate; 806. Spring shock absorber; 807. Shock absorber support block; 9. Docking column; 10. Insertion frame; 11. Electric telescopic rod; 12. Moving support plate; 13. Support plate. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] like Figure 1 and Figure 3 As shown, a high-precision milling fixture for the end face of a hydraulic cylinder in this embodiment includes a counterweight base 1, a positioning plate 3, and a positioning component 8. A fixed support plate 2 is welded to the upper side of the counterweight base 1, and a positioning plate 3 is fixed to the upper side of the fixed support plate 2. A hollow groove 4 is opened in the middle of the positioning plate 3, and an opening 5 is provided on the upper side of the hollow groove 4. An embedded groove 6 is provided on the surface of the positioning plate 3, and a moving component 7 is installed inside the embedded groove 6. An electric telescopic rod 11 is installed on one side of the fixed support plate 2, and a moving support plate 12 is fixed to one end of the electric telescopic rod 11. The moving support plate 12 is slidably connected to the counterweight base 1, and a stop plate 13 is fixed to the upper side of the moving support plate 12.

[0021] Specifically, the hydraulic cylinder to be clamped is placed inside the hollow groove 4. The extension and retraction of the electric telescopic rod 11 facilitates the movement of the movable support plate 12 and the abutment plate 13, so that the abutment plate 13, together with the positioning plate 3, provides abutment support to the other side of the hydraulic cylinder.

[0022] like Figure 1 and Figure 2 As shown, the moving component 7 includes a fixed frame 701 and a drive motor 702. Three fixed frames 701 are evenly arranged, and the drive motor 702 is installed on one side of the inside of the fixed frame 701. The moving component 7 includes a lead screw 703 and a moving sleeve 704. The lead screw 703 is provided on one side of the drive motor 702, and the moving sleeve 704 is sleeved on the outside of the lead screw 703. The moving sleeve 704 is slidably connected to the inner wall of the fixed frame 701. The moving component 7 also includes a connecting block 705. The connecting block 705 is fixed on the front side of the moving sleeve 704, and a docking post 9 is fixed in the middle of the connecting block 705. Insertion frames 10 are installed on both sides of the connecting block 705.

[0023] Specifically, the three fixed frames 701 are arranged in an array to facilitate uniform clamping, and the drive motor 702 facilitates the rotation of the lead screw 703, thereby facilitating the movement of the outer movable sleeve 704. Since the movable sleeve 704 is slidably connected to the fixed frame 701, the movable sleeve 704 can move towards or away from the center line of the hollow groove 4, thereby driving the movement of the connecting block 705 and the positioning plate 801. The synchronous drive allows the rubber blocks 802 at the ends of the three positioning plates 801 to fit against the outer side of the hydraulic cylinder for clamping and positioning. By adjustment, it can be adapted to hydraulic cylinders of different sizes.

[0024] like Figure 1 and Figure 2 As shown, a positioning component 8 is installed on one side of the moving component 7. The positioning component 8 includes a positioning plate 801, a rubber block 802, a vertical plate 805, a spring shock absorber 806, and a shock-absorbing support block 807. The rubber block 802 is fixed to the bottom surface of the positioning plate 801, and the vertical plate 805 is fixed to the outer side of the positioning plate 801. The spring shock absorber 806 is installed on the lower side of the vertical plate 805, and the shock-absorbing support block 807 is connected to the lower side of the spring shock absorber 806. The positioning component 8 also includes a docking hole 803 and an insert block 804. The docking hole 803 is opened in the middle of the positioning plate 801, and the docking hole 803 corresponds to the position of the docking post 9. The insert block 804 is inserted into the insertion frame 10 on both sides of the connecting block 705, and the insert block 804 and the insertion frame 10 are engaged.

[0025] Specifically, the mating hole 803 of the positioning plate 801 is fitted onto the mating post 9 fixed in the middle of the connecting block 705. At the same time, the inserts 804 on both sides of the positioning plate 801 are engaged with the insert frame 10 of the connecting block 705. The mating post 9 is provided with external threads on the outside, and the positioning plate 801 can be locked by nuts, which facilitates the disassembly and replacement of positioning plate 801 components of different sizes. During the clamping process, the shock-absorbing support block 807 is in contact with the outer side of the hydraulic cylinder. The interior of the shock-absorbing support block 807 can be set as a honeycomb microporous structure. It works with the spring shock absorber 806 to reduce cutting chatter during the milling process of the hydraulic cylinder end face, thereby improving the milling accuracy of the hydraulic cylinder end face.

[0026] Working principle: When in use, the hydraulic cylinder is first placed in the hollow groove 4 of the positioning plate 3. Then, the drive motor 702 drives the lead screw 703 to rotate, thereby driving the outer movable sleeve 704 to move. Since the movable sleeve 704 is slidably connected to the fixed frame 701, the movable sleeve 704 can move towards the side closer to the center line of the hollow groove 4, thereby driving the connecting block 705 and the positioning plate 801 to move, so that the rubber blocks 802 at the ends of the three positioning plates 801 can fit against the outer side of the hydraulic cylinder to clamp and position it.

[0027] Then, the electric telescopic rod 11 can be used to move the moving support plate 12 and the abutment plate 13, so that the abutment plate 13, together with the positioning plate 3, can provide abutment support to the other side of the hydraulic cylinder. During the clamping process, the shock-absorbing support block 807 can fit against the outer side of the hydraulic cylinder. The inside of the shock-absorbing support block 807 can be set as a honeycomb microporous structure. It, together with the spring shock absorber 806, can reduce cutting chatter during the milling process of the hydraulic cylinder end face, thereby improving the milling accuracy of the hydraulic cylinder end face.

[0028] The positioning plate 801 has a mating hole 803 that can be fitted onto the outside of the mating post 9 of the connecting block 705. At the same time, the inserts 804 on both sides of the positioning plate 801 are engaged with the insert frame 10 of the connecting block 705. The mating post 9 has external threads on its outside, so the positioning plate 801 can be locked with a nut. This makes it easy to disassemble and replace positioning plate 801 components of different sizes. This completes the use of the high-precision milling fixture for the end face of the hydraulic cylinder.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A hydraulic cylinder end face high-precision milling fixture, comprising a counterweight base (1), a positioning disc (3) and a positioning assembly (8), characterized in that, The upper side of the counterweight base (1) is welded with a fixed support plate (2), and the upper side of the fixed support plate (2) is fixed with a positioning plate (3). The positioning plate (3) has a hollow groove (4) in the middle, and the upper side of the hollow groove (4) is provided with an opening (5). The surface of the positioning plate (3) is provided with an embedded groove (6), and a moving component (7) is installed inside the embedded groove (6). A positioning component (8) is installed on one side of the moving component (7), and the positioning component (8) includes a positioning plate (801), a rubber block (802), a vertical plate (805), a spring shock absorber (806), and a shock-absorbing support block (807). The bottom surface of the positioning plate (801) is fixed with a rubber block (802), and the outer side of the positioning plate (801) is fixed with a vertical plate (805). The lower side of the vertical plate (805) is installed with a spring shock absorber (806), and the lower side of the spring shock absorber (806) is connected with a shock-absorbing support block (807).

2. The hydraulic cylinder end face high-precision milling fixture according to claim 1, characterized in that, The moving component (7) includes a fixed frame (701) and a drive motor (702). Three fixed frames (701) are evenly arranged, and the drive motor (702) is installed on one side of the inside of the fixed frame (701).

3. A high-precision milling fixture for the end face of a hydraulic cylinder according to claim 2, characterized in that, The moving component (7) includes a lead screw (703) and a moving sleeve (704). The lead screw (703) is provided on one side of the drive motor (702), and the moving sleeve (704) is sleeved on the outer side of the lead screw (703). The moving sleeve (704) is slidably connected to the inner wall of the fixed frame (701).

4. The hydraulic cylinder end face high-precision milling fixture according to claim 3, characterized in that, The movable component (7) further includes a connecting block (705), the front side of the movable sleeve (704) is fixed with the connecting block (705), the middle part of the connecting block (705) is fixed with a docking post (9), and the two sides of the connecting block (705) are equipped with plug-in frames (10).

5. The hydraulic cylinder end face high-precision milling fixture according to claim 4, characterized in that, The positioning component (8) further includes a docking hole (803) and a plug (804). The positioning plate (801) has a docking hole (803) in the middle, and the docking hole (803) corresponds to the position of the docking post (9). The plug (804) is inserted into the plug-in frame (10) on both sides of the connecting block (705), and the plug (804) and the plug-in frame (10) are engaged.

6. The hydraulic cylinder end face high-precision milling fixture according to claim 1, characterized in that, An electric telescopic rod (11) is installed on one side of the fixed support plate (2), and a movable support plate (12) is fixed at one end of the electric telescopic rod (11). The movable support plate (12) is slidably connected to the counterweight base (1), and a stop plate (13) is fixed on the upper side of the movable support plate (12).

Images