Positioning device for hydraulic machine shell drilling

Abstract

The utility model relates to a positioning device for drilling of a hydraulic machine shell. The positioning device comprises a sliding table, a positioning disc is arranged on the sliding table, lengthening pipes are arranged on the side wall of the positioning disc in a circumferential array mode, sliding blocks are arranged in the lengthening pipes in a sliding mode, clamping blocks are arranged at the upper ends of the sliding blocks, and a plurality of sets of forming pliers are rotationally arranged at the ends, close to the positioning disc, of the clamping blocks. According to the utility model, the shell part is positioned through the three clamping blocks in different directions, so that the clamp is suitable for parts with different specifications; and the parting clamp at the tail end of the clamping block can freely rotate to the angle tangent to the surface of the shell, so that the part is better clamped, and slipping is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of electroplating, and in particular relates to a positioning device for drilling holes in a hydraulic machine housing. Background Art

[0002] Hydraulic press housings vary widely in shape, with significant variations between product specifications. Non-rotating structures are common. While rotating parts can be positioned and held in place by a three-jaw chuck during drilling, non-rotating structures cannot be positioned and held by conventional chucks, hindering drilling operations and impacting production efficiency. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a positioning device for drilling holes in a hydraulic press housing, which at least partially solves the above problems.

[0004] The technical solution adopted by the present invention is as follows: The present invention proposes a positioning device for drilling a hydraulic machine housing, comprising a sliding table which can slide to a set position on a horizontal plane and is provided with a positioning plate.

[0005] Furthermore, in order to enable the sliding table to move arbitrarily on the horizontal plane, a lower protrusion is provided at the lower end of the sliding table, and a horizontal slide rail is provided on the lower wall of the lower protrusion for sliding. A horizontal motor is fixed to the side end of the horizontal slide rail, and a horizontal screw is provided on the horizontal motor, and the horizontal screw is threadedly connected to the lower protrusion.

[0006] Furthermore, a longitudinal slide rail is provided on the lower wall of the horizontal slide rail for vertical sliding, a longitudinal lead screw is threadedly connected to the lower end of the side wall of the horizontal slide rail, and a longitudinal motor is fixed on the longitudinal lead screw.

[0007] Furthermore, the positioning plate side wall circular array is provided with an extension tube, preferably, at least three groups of extension tubes are provided, a slide groove is provided in the extension tube, a slider is provided for sliding in the slide groove of the extension tube, the slider can be moved to any position of the extension tube and fixed, the upper end of the slider is provided with a connecting block, the connecting block at the upper end of the slider is provided with a clamping block, and the clamping block is provided with a multi-component forming clamp for rotating at one end close to the positioning plate.

[0008] Furthermore, in order to enhance the clamping effect of the parting clamp, the side wall array of the parting clamp is provided with tooth columns that can increase the friction force.

[0009] Furthermore, in order to fix the slider so that it can be moved to any position, a positioning rack is provided at the bottom end of the side wall of the extension tube, a positioning pin is provided above the positioning rack and passes through the side end of the slider, a first spring is connected between the positioning pin and the slider, a flange plate is provided at the side end of the slider, the positioning pin passes through the flange plate, the bottom end of the first spring is fixed to the flange plate, an engaging rack is provided at the bottom of the positioning pin, the engaging rack is adapted to engage with the positioning rack, and the engaging rack can engage with the positioning rack.

[0010] Furthermore, in order to prevent the slider from shaking due to the gap when the meshing rack and the positioning rack are meshed, a second spring is connected between the slider and the extension tube. The second spring is arranged in the slide groove. The second spring always pushes the slider, and the slider drives the meshing rack to always have a tendency to move horizontally relative to the positioning rack, so that the meshing rack exerts a certain pressure on the positioning rack, so that the tooth surface of the meshing rack is always in contact with the tooth surface of the positioning rack, thereby avoiding shaking.

[0011] The beneficial effects achieved by the utility model are as follows: the clamping block on the slider can be freely moved to a position that is adapted to the contour of the hydraulic press housing, and the positioning processing of the housing parts is achieved through the clamping blocks in three different directions. It is suitable for parts of various specifications and has high versatility; and the parting clamp at the end of the clamping block can be freely rotated to an angle tangent to the housing surface, so as to better clamp the parts and prevent slipping due to irregular surface of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0013] Figure 2 The diagram shows the position relationship between the horizontal slide rail and the longitudinal slide rail;

[0014] Figure 3 It is a structural diagram of the positioning plate;

[0015] Figure 4 The position relationship diagram of each part in the chute;

[0016] Figure 5 It is a structural diagram of the clamping block and the parting clamp;

[0017] Figure 6 This is a structural diagram of the slider.

[0018] Among them, 1. sliding table, 2. positioning plate, 3. lower protrusion, 4. horizontal slide rail, 5. horizontal motor, 6. horizontal screw, 7. longitudinal slide rail, 8. longitudinal motor, 9. longitudinal screw, 10. extension tube, 11. slide groove, 12. positioning rack, 13. slider, 14. clamping block, 15. positioning pin, 16. meshing rack, 17. first spring, 18. parting clamp, 19. connecting block, 20. flange plate, 21. second spring.

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] like Figure 1 and Figure 2 As shown, an embodiment of the utility model proposes a positioning device for drilling a hydraulic press housing, comprising a sliding table 1, which can slide to a set position on a horizontal plane. A positioning disk 2 is provided on the sliding table 1, and a workpiece is placed on the positioning disk 2. The workpiece can move to any position following the positioning disk 2 and the sliding table 1 so that the point to be drilled coincides with the drill bit.

[0023] In order to enable the sliding table 1 to move arbitrarily on the horizontal plane, a lower protrusion 3 is provided at the lower end of the sliding table 1, and a horizontal slide rail 4 is provided for sliding on the lower wall of the lower protrusion 3. A horizontal motor 5 is fixed to the side end of the horizontal slide rail 4, and a horizontal lead screw 6 is provided on the horizontal motor 5. The horizontal lead screw 6 is threadedly connected to the lower protrusion 3. When the horizontal motor 5 rotates, the horizontal lead screw follows the rotation and drives the lower protrusion 3 to move horizontally along the horizontal slide rail 4, thereby driving the sliding table 1 to slide horizontally.

[0024] The lower wall of the horizontal slide rail 4 is provided with a longitudinal slide rail 7 for vertical sliding. The lower end of the side wall of the horizontal slide rail 4 is threadedly connected to a longitudinal screw 9, and a longitudinal motor 8 is fixed on the longitudinal screw 9. When the longitudinal motor 8 rotates, the horizontal slide rail 4 is driven by the longitudinal screw 9 to slide in the direction of the longitudinal slide rail 7, thereby driving the sliding platform 1 above to slide longitudinally.

[0025] like Figure 3 and Figure 4 As shown, an extension tube 10 is provided in a circular array on the side wall of the positioning disk 2. Preferably, at least three groups of extension tubes 10 are provided. A slide groove 11 is provided in the extension tube 10. A slider 13 is provided for sliding in the slide groove 11 of the extension tube 10. The slider 13 can be moved to any position of the extension tube 10 and fixed. A connecting block 19 is provided on the upper end of the slider 13. A clamping block 14 is provided on the connecting block 19 at the upper end of the slider 13. The clamping block 14 is rotated near one end of the positioning disk 2 and is provided with a multi-set parting clamp 18. The clamping blocks 14 arranged in at least three directions can complete the positioning of shell parts of any contour shape, so that the shell parts are completely fixed, and the parting clamp 18 rotatably arranged at the end of the clamping block 14 can freely rotate to an angle tangent to the shell parts, thereby applying a clamping force in a vertical direction to the surface of the shell parts to avoid slipping during the clamping process.

[0026] like Figure 5 As shown, in order to increase the clamping effect of the parting clamp 18, the side wall array of the parting clamp 18 is provided with tooth columns that can increase friction. The tooth columns are longitudinally continuously distributed cylindrical strips, and tiny tooth grooves are formed on the surface, thereby increasing the pressure during contact.

[0027] like Figure 4 and Figure 6 As shown, in order to fix the slider 13 so that it can move to any position, a positioning rack 12 is provided at the bottom end of the side wall of the extension tube 10, and a positioning pin 15 is provided above the positioning rack 12, which passes through the side end of the slider 13. A first spring 17 is connected between the positioning pin 15 and the slider 13, and a flange plate 20 is provided at the side end of the slider 13. The positioning pin 15 passes through the flange plate 20, and the bottom end of the first spring 17 is fixed to the flange plate 20. An engaging rack 16 is provided at the bottom of the positioning pin 15, which is adapted to engage with the positioning rack 12. The engaging rack 16 can engage with the positioning rack 12. When the positioning pin 15 is pulled upward, the engaging rack 16 is separated from the positioning rack 12, and the slider 13 can move freely. When the positioning pin 15 is released, the positioning pin 15 moves downward under the action of the first spring 17, and the engaging rack 16 is engaged with the positioning rack 12, thereby fixing the slider 13.

[0028] In order to prevent the slider 13 from shaking due to the gap when the meshing rack 16 and the positioning rack 12 are engaged, a second spring 21 is connected between the slider 13 and the extension tube 10. The second spring 21 is arranged in the slide groove 11. The second spring 21 always pushes the slider 13, and the slider 13 drives the meshing rack 16 to always have a tendency to move horizontally relative to the positioning rack 12, so that the meshing rack 16 applies a certain pressure to the positioning rack 12, so that the tooth surface of the meshing rack 16 always fits with the tooth surface of the positioning rack 12, thereby avoiding shaking.

[0029] During specific use, pull out the positioning pins 15 in all directions to separate the positioning rack 12 from the meshing rack 16, and push the slider 13 to the outermost end of the extension tube 10, place the shell part on the positioning plate 2, release the slider 13, and the slider 13 will overcome the resistance of the second spring 21 and automatically move to a position that fits the shell part.

[0030] When the parting clamp 18 on the clamping block 14 contacts the shell part, the positioning pin 15 is released, and the positioning pin 15 moves downward under the action of the first spring 17, and the positioning rack 12 is re-engaged with the meshing rack 16. Under the action of the second spring 21, the tooth surface of the meshing rack 16 and the tooth surface of the positioning rack 12 fit together, and there is a certain pressure between the two, and no shaking will occur.

[0031] When the parting clamp 18 fits the shell part, the parting clamp 18 will freely rotate a certain angle on the clamping block 14 until the parting clamp 18 is tangent to the surface of the shell part. At this time, the clamping force is perpendicular to the tangent direction, the clamping force on the shell is the most stable, and the workpiece will not slip.

[0032] After the workpiece is clamped and positioned, the horizontal motor 5 drives the sliding table 1 to move on the horizontal slide rail 4, and the longitudinal motor 8 drives the sliding table 1 to move on the longitudinal slide rail 7, so that the workpiece on the sliding table 1 can be moved arbitrarily on the horizontal plane, and the point to be drilled on the workpiece is moved under the drill bit.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A positioning device for drilling a hole in a hydraulic machine housing, comprising a sliding table (1) capable of sliding on a horizontal plane to a set position, characterized in that: Also includes: A positioning plate (2) is provided on a sliding table (1), wherein an extension tube (10) is provided in a circumferential array on the side wall of the positioning plate (2), a slider (13) is provided in the extension tube (10), a positioning rack (12) is provided at the bottom end of the side wall of the extension tube (10), a positioning pin (15) is provided above the positioning rack (12) and passes through the side end of the slider (13), a first spring (17) is connected between the positioning pin (15) and the slider (13), an engaging rack (16) is provided at the bottom of the positioning pin (15), and a second spring (21) is connected between the slider (13) and the extension tube (10); A clamping block (14) is provided at the upper end of the slider (13), and a multi-component forming clamp (18) is rotatably provided at one end of the clamping block (14) close to the positioning plate (2).

2. The positioning device for drilling a hole in a hydraulic machine housing according to claim 1, characterized in that: A slide groove (11) is provided in the extension tube (10), the slider (13) is slidably arranged in the slide groove (11), and the second spring (21) is arranged in the slide groove (11).

3. The positioning device for drilling a hole in a hydraulic press housing according to claim 1, characterized in that: The upper end of the slider (13) is provided with a connecting block (19), and the side end of the slider (13) is provided with a flange plate (20).

4. The positioning device for drilling a hole in a hydraulic press housing according to claim 3, characterized in that: The clamping block (14) is fixed on the connecting block (19), the positioning pin (15) is provided through the flange plate (20), and the bottom end of the first spring (17) is fixed on the flange plate (20).

5. The positioning device for drilling a hole in a hydraulic press housing according to claim 1, characterized in that: The meshing rack (16) is adapted to the tooth shape of the positioning rack (12), and the meshing rack (16) can mesh with the positioning rack (12).

6. The positioning device for drilling a hole in a hydraulic machine housing according to claim 1, characterized in that: The side wall array of the parting clamp (18) is provided with tooth columns capable of increasing friction.

7. The positioning device for drilling a hole in a hydraulic machine housing according to claim 1, characterized in that: A lower protrusion (3) is provided at the lower end of the sliding platform (1), a horizontal slide rail (4) is provided on the lower wall of the lower protrusion (3), a horizontal motor (5) is fixed to the side end of the horizontal slide rail (4), a horizontal lead screw (6) is provided on the horizontal motor (5), and the horizontal lead screw (6) is threadedly connected to the lower protrusion (3).

8. The positioning device for drilling a hole in a hydraulic machine housing according to claim 7, characterized in that: The lower wall of the horizontal slide rail (4) is provided with a longitudinal slide rail (7) for vertical sliding movement. The lower end of the side wall of the horizontal slide rail (4) is threadedly connected to a longitudinal lead screw (9), and a longitudinal motor (8) is fixed to the longitudinal lead screw (9).

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