Tray center oil hole machining and positioning device

Abstract

The utility model relates to the technical field of tool clamps, and discloses a tray center oil hole machining and positioning device which comprises a base, a rotating platform is arranged on the base, a base plate is fixedly arranged at the upper end of the rotating platform, and a positioning plate is arranged on the base. The positioning plate is provided with three supporting blocks which are distributed in a triangular mode and used for supporting the bottom face of a tray, the top faces of the supporting blocks are coplanar, and the positioning plate is at least provided with two positioning pins used for positioning the tray; a pressing assembly used for pressing the tray is arranged on the positioning plate and located on the outer side of the supporting block. The tool has the advantages of being convenient to use and capable of improving machining efficiency and machining precision.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a processing and positioning device for a central oil hole of a pallet. Background Art

[0002] like Figure 6 and Figure 7 A tray 90 of a scroll compressor needs to be processed for the center oil hole 91 of the tray 90. During the processing, the tray is positioned on a horizontal machine tool through a fixture, and then the drilling process is performed. Since both ends of the center oil hole radially penetrate the tray, the radial length of the center oil hole is very large, so it is necessary to process both ends of the hole separately. At present, one end is usually processed first, and then the tray is reinstalled and the other end is processed. This requires the tray to be clamped twice. Clamping the tray twice will cause assembly errors and reduce processing efficiency. Utility Model Content

[0003] In order to solve the above problems in the prior art, the utility model provides a pallet center oil hole machining and positioning device which is easy to use and can effectively improve machining accuracy and machining efficiency.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A device for processing and positioning the center oil hole of a pallet comprises a base, a rotating platform is provided on the base, a base plate is fixedly provided on the upper end of the rotating platform, a positioning plate is provided on the base, three support blocks for supporting the bottom surface of the pallet are provided on the positioning plate and are distributed in a triangular shape, the top surfaces of the support blocks are coplanar, and at least two positioning pins for positioning the pallet are provided on the positioning plate; a clamping assembly for clamping the pallet is provided on the outer side of the support blocks of the positioning plate. The positioning holes on the pallet are respectively connected to the positioning pins, and the bottom surface of the pallet is respectively supported by the three support blocks, and then the pallet is clamped by the clamping assembly, at which time the circumferential and axial directions of the pallet are completely positioned; then the pallet is rotated to a preset position by the rotating platform to process the center hole, and after one end of the center hole is processed, the pallet is rotated to another preset position by the rotating platform for processing; this positioning device only needs to position the pallet once to process the center oil hole, and has high positioning accuracy and processing efficiency.

[0006] Preferably, the rotating platform is configured as a servo-electrically controlled rotating platform, and the tabletop of the servo-electrically controlled rotating platform is fastened to the base plate by bolts. The servo-electrically controlled rotating platform has high rotation accuracy and can be positioned after being rotated to any position, which is very convenient to use.

[0007] Preferably, the clamping assembly includes a rotary cylinder, a connecting seat fixed to the shaft end of the rotary cylinder, and a pressing block assembly arranged on the connecting seat; when the pallet is positioned by the positioning pin, the connecting seat rotates to the upper side of the pallet and descends, so that the pressing block assembly presses the pallet against the supporting block. The rotary cylinder can control the rotation of the connecting seat and the lifting and lowering of the connecting seat, thereby making it more convenient to take and put the pallet.

[0008] Preferably, the pressing block assembly comprises a screw, a pressing block fixed at the lower end of the screw, and a nut threadedly connected to the screw, wherein the upper end of the screw is threadedly connected to the connecting seat and then locked by the nut. The height of the pressing block can be adjusted by the screw to meet the pressing requirements of the pallet.

[0009] Preferably, the corner cylinder is configured as a corner cylinder, the base is provided with a bracket, the upper end of the bracket is provided with a rotary joint, and the rotary joint is connected to the corner cylinder through an air pipe. The rotary joint cooperates with the air pipe to supply air to the corner cylinder to prevent the air pipe from interfering during rotation.

[0010] Preferably, two second positioning pins are provided on the base plate, and positioning holes matching the second positioning pins are provided on the positioning plate, and the positioning plate and the base plate are fastened by bolts. The positioning plate matches the second positioning pins through the positioning holes, and after the positioning plate is disassembled for maintenance, the installation is more convenient and the installation accuracy is high.

[0011] Preferably, a sunken stepped surface is provided in the middle of the bottom surface of the substrate. The bottom surface of the substrate has a high flatness requirement, and the sunken stepped surface is provided to reduce the flatness requirement of this part, making processing more convenient.

[0012] Preferably, the side of the base plate and the positions corresponding to the two ends of the central oil hole on the tray are provided with avoidance grooves. The avoidance grooves are provided to avoid the tool holder so that the tool holder can be closer to the end of the central oil hole, thereby reducing the clamping length of the drill bit and improving the processing stability and processing accuracy.

[0013] Preferably, a foolproof component is provided at the center of the positioning plate, and the foolproof component includes a connecting block and a plurality of protrusions provided at preset positions on the top surface of the connecting block; when the tray is connected to the positioning pin according to the preset position, the protrusions do not interfere with the bottom surface of the tray; when the tray is not connected to the positioning pin according to the preset position, the protrusions interfere with the bottom surface of the tray so that the tray cannot be positioned. The foolproof component can prevent the tray from being installed incorrectly.

[0014] Therefore, the utility model has the beneficial effects of being easy to use and being able to improve processing efficiency and processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a connection diagram of the base plate, positioning plate and clamping assembly.

[0017] Figure 3 for Figure 2 Exploded diagram.

[0018] Figure 4 Schematic diagram of the bottom structure of the substrate.

[0019] Figure 5 This is a schematic diagram of the tray positioning status.

[0020] Figure 6 A schematic diagram of the upper side of the tray.

[0021] Figure 7 A schematic diagram of the bottom surface of the tray. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the scope of protection of the present invention.

[0023] It should be understood that, in this document, the expressions "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor should they be understood as implicitly indicating the number of technical features indicated. Features defined as "first" or "second" may explicitly or implicitly indicate that at least one of the features is included.

[0024] like Figure 1-Figure 5 A device for processing and positioning a center oil hole of a pallet is shown, comprising a base 10, a rotating platform 20 is provided on the base 10, a base plate 30 is fixedly provided on the upper end of the rotating platform 20, a positioning plate 40 is provided on the base 10, three support blocks 41 distributed in a herringbone shape for supporting the bottom surface of the pallet are provided on the positioning plate 40, the top surfaces of the support blocks 41 are coplanar, at least two positioning pins 42 for positioning the pallet 90 are provided on the positioning plate 40; a clamping assembly 50 for clamping the pallet is provided on the outer side of the support block 41 on the positioning plate 40.

[0025] The rotating platform 20 in this embodiment is configured as a servo-electrically controlled rotating platform, and a tabletop 21 of the servo-electrically controlled rotating platform is fastened to a base plate 30 by bolts 22 .

[0026] The pressing assembly 50 includes a corner cylinder 51, a connecting seat 52 fixed on the shaft end of the corner cylinder, and a pressing block assembly 53 arranged on the connecting seat; when the pallet 90 is positioned by the positioning pin 42, the connecting seat 52 rotates to the upper side of the pallet and descends, so that the pressing block assembly 53 presses the pallet on the support block 41. The pressing block assembly 53 includes a screw rod 530, a pressing block 531 fixed on the lower end of the screw rod, and a nut 532 threadedly connected to the screw rod. The upper end of the screw rod is threadedly connected to the connecting seat and locked by the nut. The height of the pressing block can be adjusted by the screw rod to meet the pressing requirements of the pallet. The corner cylinder in this embodiment is configured as a corner cylinder, and a bracket 60 is provided on the base 10. A rotary joint 61 is provided at the upper end of the bracket 60, and the rotary joint is connected to the corner cylinder through an air pipe 62. In this embodiment, a valve group is provided on the positioning plate, and the air pipe is connected to the valve group. The valve group is connected to the three corner cylinders through a branch pipe at the same time, thereby simultaneously controlling the synchronous action of the three corner cylinders.

[0027] Two second positioning pins 31 are provided on the base plate 30, and a positioning hole 400 matched with the second positioning pin 31 is provided on the positioning plate 40. The positioning plate 40 and the base plate 30 are fastened together by bolts. A sunken step surface 300 is provided in the middle part of the bottom surface of the base plate 30. The step surface can be a concave circular surface or a rectangular surface. Avoidance grooves 301 are provided on the side surfaces of the base plate 30 corresponding to the two ends of the central oil hole on the tray.

[0028] A foolproof assembly 43 is provided at the center of the positioning plate 40. The foolproof assembly 43 includes a connecting block 430 and a plurality of protrusions 431 provided at preset positions on the top surface of the connecting block. The protrusions in this embodiment are bolts. After the bolts are connected to the connecting block, the ends of the bolts are exposed from the top surface of the connecting block to form the protrusions 431. When the tray is connected to the positioning pin 42 at the preset position, the protrusions do not interfere with the bottom surface of the tray. When the tray is not connected to the positioning pin 42 at the preset position, the protrusions interfere with the bottom surface of the tray, making it impossible for the tray to be positioned. Figure 7 As shown, a boss 92 is provided in the middle portion of the bottom of the tray 90. When the tray is installed in the correct position, the protrusion 431 just avoids the protrusion 92. When the tray is not installed in the correct position (angle), the position of the protrusion 431 just corresponds to the position of the protrusion 92, so that the tray cannot remain horizontal and cannot be connected to the positioning pin, thereby preventing the tray from being installed at the wrong angle and causing processing errors.

[0029] Combined with the accompanying drawings, the principle of the utility model is as follows: the shaft of the corner cylinder extends out, the connecting seat rotates to the outside, the tray is installed on the positioning plate, the three holes on the tray are connected to the three positioning pins, the bottom surface of the tray is supported by the support block, the corner cylinder drives the connecting seat to rotate and descend to press the tray, at this time the tray is completely positioned, the tray positioning state is as follows Figure 1As shown in the figure, the servo-electrically controlled rotating platform rotates the pallet to the preset position to process one end of the center oil hole, and then the servo-electrically controlled rotating platform drives the pallet to rotate 180 degrees to process the other end of the center oil hole. After processing, the pallet is removed. This device can process the center oil hole by clamping the pallet once, eliminating the need for secondary clamping operations and effectively improving processing efficiency and processing accuracy.

[0030] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, the other end, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of more clearly describing the technical solution of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific orientation, and cannot be understood as a limitation of the present invention.

[0031] Although specific embodiments of the present invention are described in detail herein, they are provided for the purpose of explanation only and should not be considered to limit the scope of the present invention. Various substitutions, changes and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. A pallet center oil hole processing and positioning device, comprising a base, characterized in that: A rotating platform is provided on the base, a base plate is fixedly provided on the upper end of the rotating platform, a positioning plate is provided on the base, three support blocks distributed in a herringbone shape for supporting the bottom surface of the tray are provided on the positioning plate, the top surfaces of the support blocks are coplanar, and at least two positioning pins for positioning the tray are provided on the positioning plate; a clamping assembly for clamping the tray is provided on the outer side of the support block on the positioning plate.

2. A pallet center oil hole processing and positioning device according to claim 1, characterized in that: The rotating platform is configured as a servo-electrically controlled rotating platform, and the table top of the servo-electrically controlled rotating platform is fastened to a base plate by bolts.

3. The device for machining and positioning the center oil hole of a pallet according to claim 1 is characterized in that: The clamping assembly includes a rotation cylinder, a connecting seat fixed to the shaft end of the rotation cylinder, and a pressure block assembly arranged on the connecting seat; when the pallet is positioned by the positioning pin, the connecting seat rotates to the upper side of the pallet and descends, so that the pressure block assembly presses the pallet onto the support block.

4. A pallet center oil hole processing and positioning device according to claim 3, characterized in that: The pressing block assembly comprises a screw rod, a pressing block fixed at the lower end of the screw rod, and a nut threadedly connected to the screw rod. The upper end of the screw rod is threadedly connected to the connecting seat and is locked by the nut.

5. A pallet center oil hole processing and positioning device according to claim 3 or 4, characterized in that: The corner cylinder is configured as a corner cylinder, a bracket is provided on the base, a rotating joint is provided on the upper end of the bracket, and the rotating joint is connected to the corner cylinder through an air pipe.

6. The device for machining and positioning the center oil hole of a pallet according to claim 1 is characterized in that: Two second positioning pins are arranged on the base plate, and positioning holes matched with the second positioning pins are arranged on the positioning plate. The positioning plate and the base plate are fastened and connected by bolts.

7. The device for machining and positioning the center oil hole of a pallet according to claim 1 is characterized in that: A sunken stepped surface is arranged in the middle of the bottom surface of the substrate.

8. The device for machining and positioning the center oil hole of a pallet according to claim 1 is characterized in that: Avoidance grooves are arranged at the corresponding positions of the side surface of the base plate and the two ends of the central oil hole on the tray.

9. The device for machining and positioning the center oil hole of a pallet according to claim 1, characterized in that: A foolproof component is provided at the center of the positioning plate, and the foolproof component includes a connecting block and a plurality of protrusions arranged at preset positions on the top surface of the connecting block; When the tray is connected to the positioning pin according to the preset position, the protrusion does not interfere with the bottom surface of the tray; when the tray is not connected to the positioning pin according to the preset position, the protrusion interferes with the bottom surface of the tray so that the tray cannot be positioned.

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