Compressor movable disc forging and pressing feeding device

Abstract

The invention relates to the field of forging, and particularly discloses a compressor movable disc forging and pressing feeding device which comprises a middle rotating disc, a blank and a clamping manipulator, a profiling groove is formed in the top face of the middle rotating disc, three convex lugs are arranged on the side face of the blank, the clamping manipulator comprises symmetrically-arranged clamping jaws, and positioning grooves and positioning protrusions are arranged on the inner sides of the two clamping jaws. The clamping jaw is provided with a positioning surface between the positioning groove and the positioning bulge; blanks are positioned and centered through the positioning grooves, the positioning protrusions and the positioning faces of the clamping jaws in the clamping manipulator, meanwhile, the positioning grooves and the positioning protrusions conduct angular positioning on the blanks, it is guaranteed that the blanks are in the same state every time the blanks are clamped, accurate positioning is facilitated when the blanks are placed into a mold cavity, and the production efficiency is improved. According to the blank clamping device, the blank in the profiling groove can be clamped and positioned at any position, the clamping efficiency is improved, and the blank feeding time is shortened, so that the blank exposure time is shortened, the blank temperature is guaranteed, and the forging and pressing effect of the blank is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of forging, in particular to a compressor moving plate forging and feeding device. Background Art

[0002] The compressor rotor is the core component of the scroll compressor, which has a complex structure and high precision requirements. At present, the preparation of the moving disk mainly relies on the forging process. For example, patent application number CN201820626892.X discloses a forging die for a moving disk of a scroll refrigeration compressor, including an upper die and a lower die matched therewith. The upper die includes a panel, a pad, a fixed plate, an upper die core and an upper ejector rod. A groove is provided on the upper die fixed plate, and the upper die core is movably arranged in the groove. One end of the upper ejector rod passes through the panel, the pad and the fixed plate respectively and is connected to the upper die core. The lower die includes a bottom plate, a die foot, a lower die pad, a lower die sleeve, a lower die core, an ejector pin and a lower ejector pin. The lower die core is fixed in the limiting groove, and a scroll forging cavity is provided on it. The die foot is also provided with an installation groove, which is provided with an ejector pad and an ejector fixing plate. One end of the ejector is fixedly connected to the ejector fixing plate, and the other end passes through the lower die pad and the lower die sleeve and is arranged in the scroll forging cavity. One end of the lower ejector pin passes through the bottom plate and the die foot and is fixedly connected to the ejector pad.

[0003] The preparation method of the compressor moving disc is to use the upper die and the lower die in the moving disc casting mold to forge the disc blank into a moving disc. The lower die is provided with a forging cavity that imitates the moving disc. During forging, the disc blank needs to be taken out of the heating furnace and placed in the forging cavity. At present, most of the disc blanks on the market are disc blanks. In order to reduce costs and increase efficiency and save materials, our company uses three-ear profile blanks, and the forging cavity is also provided with matching three-ear grooves. After the existing clamping robot clamps the disc blank, it is difficult to accurately position the three-ear structure in the disc blank and the three-ear groove in the forging cavity, which affects the loading efficiency of the disc blank. After the blank is taken out of the heating furnace, it can only be exposed to the air for 5-10 seconds. If the time is too long, the temperature of the blank will drop, affecting the forging effect. For this reason, the present application proposes a compressor moving disc forging feeding device to solve the above problems. Summary of the Invention

[0004] In response to the existing problems, the present invention provides a compressor rotor disc forging and feeding device, which can effectively solve the problems raised in the background technology.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A compressor rotor disc forging and feeding device, comprising:

[0007] A middle turntable, wherein the top surface of the middle turntable is provided with a contoured groove;

[0008] A blank, wherein three lugs are provided on the side of the blank;

[0009] The clamping robot includes symmetrically arranged clamping jaws, the inner sides of the two clamping jaws are provided with positioning grooves and positioning protrusions, and the clamping jaws are provided with a positioning surface between the positioning groove and the positioning protrusion. When clamping the blank, one of the lugs of the blank is placed in the positioning groove, the side of the blank is in line contact with the positioning surface, and the groove formed between the lug and the side of the blank matches the positioning protrusion.

[0010] As a further solution of the present invention: the gripping robot also includes a cylinder, the end face of the cylinder is fixedly connected to a symmetrically arranged fixed plate, and a symmetrically arranged swing arm and clamping arm are provided between the two fixed plates. One end of the swing arm is fixedly connected to the clamping claw through the clamping arm, and a symmetrical shaft is provided between the two fixed plates. The swing arm is movably connected to the shaft, and the other ends of the two swing arms are connected to the driving plate. The telescopic shaft of the cylinder is fixedly connected to the driving plate, and the driving plate moves back and forth to drive the swing arm to rotate around the shaft.

[0011] As a further solution of the present invention: the driving plate is provided with symmetrical inclined grooves and the distance between the two inclined grooves gradually increases from the swing arm to the cylinder, the end of the swing arm is provided with an open groove, the open groove is fixedly connected to a traction rod, and the traction rod passes through the inclined groove.

[0012] As a further solution of the present invention: a limiting rod is fixedly connected between the two fixing plates, a limiting groove is provided on the telescopic shaft of the cylinder along the telescopic direction, and the limiting rod passes through the limiting groove.

[0013] As a further solution of the present invention: a stopper is provided at one end of the clamping jaw located in the positioning groove, and the stopper is used to abut against the end face of the blank.

[0014] As a further solution of the present invention, an arc-shaped groove is provided on a side surface of the two clamping jaws that are close to each other.

[0015] As a further solution of the present invention: a graphite circulation pipeline connected to the profiling groove is provided in the middle turntable and a plurality of holes are provided at the bottom of the profiling groove. The graphite circulation pipeline is used to inject graphite suspension into the profiling groove.

[0016] As a further solution of the present invention: an inner groove is provided at the bottom of the profiling groove of the middle turntable, the plane size of the inner groove is smaller than the plane size of the profiling groove, and the hole is provided at the bottom of the inner groove and passes through the middle turntable.

[0017] As a further solution of the present invention: the bottom of the central turntable is fixedly connected to a receiving tray via a column.

[0018] As a further solution of the present invention: a heating rod is embedded in the middle turntable.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention positions and centers the blank through the positioning grooves, positioning protrusions and positioning surfaces of the clamping claws in the clamping robot, and at the same time the positioning grooves and positioning protrusions angularly position the blank, ensuring that the blank is in the same state each time it is clamped, which is convenient for precise positioning when placed in the mold cavity, and can clamp and position the blank at any position in the profiling groove, thereby improving the clamping efficiency, shortening the loading time of the blank, thereby reducing the exposure time of the blank, ensuring the temperature of the blank, and ensuring the forging effect of the blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a compressor dynamic plate forging and feeding device;

[0021] Figure 2 This is a schematic diagram of the structure of the middle turntable in a compressor moving plate forging and feeding device;

[0022] Figure 3 for Figure 2 A side view of

[0023] Figure 4 for Figure 3 Schematic diagram of the middle AA section;

[0024] Figure 5 for Figure 2 Another side view of

[0025] Figure 6 for Figure 5 Schematic diagram of the middle BB section;

[0026] Figure 7 It is a three-dimensional schematic diagram of a clamping robot gripping a blank in a compressor dynamic plate forging and loading device;

[0027] Figure 8 This is a schematic diagram of a planar view of a clamping robot gripping a blank in a compressor dynamic plate forging and loading device;

[0028] Figure 9 This is a three-dimensional schematic diagram of a blank in a compressor rotor forging and loading device;

[0029] Figure 10 This is a partially exploded schematic diagram of the gripping manipulator in a compressor dynamic plate forging and loading device;

[0030] Figure 11 A schematic diagram of the gripper on a clamping robot in a compressor rotor forging and loading device;

[0031] Figure 12 This is a schematic diagram of the connection between the swing arm and the drive plate in a compressor dynamic plate forging and feeding device.

[0032] In the figure: 1. turntable; 101. contoured groove; 102. graphite circulation pipeline; 103. hole; 104. inner groove; 105. heating rod; 2. blank; 201. lug; 3. clamping robot; 301. clamping claw; 3011. positioning groove; 3012. positioning protrusion; 3013. positioning surface; 3014. stopper; 3015. arc groove; 302. cylinder; 3021. telescopic shaft; 3022. limiting strip groove; 303. fixed plate; 304. swing arm; 3041. opening groove; 3042. traction rod; 305. clamping arm; 306. shaft rod; 307. drive plate; 3071. inclined strip groove; 308. limiting rod; 4. column; 5. receiving tray. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Combine Figures 1 to 12 Describing this embodiment, this embodiment provides a compressor movable plate forging and loading device, which includes a turntable 1, a blank 2 and a clamping robot 3. The top surface of the turntable 1 is provided with a profiling groove 101. The depth of the profiling groove 101 is less than the thickness of the blank 2. The blank 2 is circular and has three lugs 201 on the side. The planar shape of the profiling groove 101 is the same as the planar shape of the blank 2 with the three lugs 201, and the outer contour size of the profiling groove 101 is 4 mm larger than the outer contour size of the blank 2, so that a gap of 4 mm is left after the blank 2 is placed in the profiling groove 101, which is convenient for taking and placing the blank 2. The gripping manipulator 3 includes symmetrically arranged gripping jaws 301, the inner sides of the two gripping jaws 301 are provided with positioning grooves 3011 and positioning protrusions 3012, and the gripping jaws 301 are provided with positioning surfaces 3013 between the positioning grooves 3011 and the positioning protrusions 3012. When gripping the blank 2, one of the lugs 201 of the blank 2 is placed in the positioning groove 3011, and the side surface of the blank 2 is in line contact with the positioning surface 3013 in the thickness direction of the blank 2. The groove formed between the lug 201 and the side surface of the blank 2 is in contact with the positioning protrusion 3013. 2, when the two jaws 301 are close to each other to clamp the blank 2, one side of the positioning groove 3011 forms a convex angle with the inner side of the jaw 301, and the convex angle is inserted into the groove formed by one of the lugs 201 and the outer side of the blank 2, and at this time, the positioning protrusion 3012 is inserted into the groove formed by the other lug 201 and the outer side of the blank 2, thereby achieving angular positioning of the blank 2, and at the same time, the positioning surfaces 3013 on the two jaws 301 are in line contact with the blank 2 in the thickness direction of the blank 2, thereby achieving positioning of the blank 2.

[0035] like Figure 7-12 As shown, further, the clamping robot 3 also includes a cylinder 302, the end face of the cylinder 302 is fixedly connected to a symmetrically arranged fixed plate 303, and a symmetrically arranged swing arm 304 and a clamping arm 305 are provided between the two fixed plates 303. One end of the swing arm 304 is fixedly connected to the clamping claw 301 through the clamping arm 305, and a symmetrical shaft 306 is provided between the two fixed plates 303. The swing arm 304 is movably connected to the shaft 306, and the other ends of the two swing arms 304 are connected to the driving plate 307. The telescopic shaft 3021 of the cylinder 302 is fixedly connected to the driving plate 307, and the driving plate 307 moves back and forth to drive the swing arm 304 to rotate around the shaft 306. The driving plate 307 is provided with symmetrical inclined grooves 3071 and the distance between the two inclined grooves 3071 gradually increases from the swing arm 304 to the cylinder 302. The end of the swing arm 304 is provided with an open groove 3041, and a traction rod 3042 is fixedly connected to the open groove 3041. The traction rod 3042 passes through the inclined groove 3071, and the pressure angle between the notch of the inclined groove 3071 and the traction rod 3042 is less than 25 degrees, which effectively improves the conversion of the axial force of the cylinder 302 into The clamping force of the clamping jaws 301 and the telescopic shaft 3021 on the cylinder 302 drive the driving plate 307 to move. At this time, the traction rod 3042 on the swing arm 304 is passively moved closer to or away from each other under the action of the inclined groove 3071, thereby driving the swing arm 304 to rotate, so that the two clamping jaws 301 are moved closer to or away from each other, and the blank 2 is clamped or put down. The rear end of the clamping jaw 301 adopts an inward-adjusting structure, which reduces the opening angle of the clamping jaw 301 and shortens the time for clamping the material.

[0036] like Figure 10 As shown, further, a limiting rod 308 is fixedly connected between the two fixed plates 303. A limiting groove 3022 is provided on the telescopic shaft 3021 of the cylinder 302 along the telescopic direction. The limiting rod 308 passes through the limiting groove 3022 and is used to limit the telescopic length of the telescopic shaft 3021, thereby controlling the clamping force of the two front clamping jaws 301 to avoid damage to the blank 2. Furthermore, a stopper 3014 is provided at one end of the clamping jaw 301 located in the positioning groove 3011. The stopper 3014 is used to abut the end face of the blank 2. The distance from the positioning groove 3011 to the stopper 3014 in the thickness direction of the clamping jaw 301 is less than the thickness of the blank 2. This ensures that some of the blank 2 will leak out of the clamping jaw 301 after clamping the blank 2, making it easier to take and place the blank 2. Furthermore, an arcuate groove 3015 is provided on the side of the two clamping jaws 301 that are close to each other. The arrangement of the two arcuate grooves 3015 can clamp the blanks 2 or other materials.

[0037] like Figure 2-6As shown, further, a graphite circulation pipeline 102 connected to the profiling groove 101 is provided in the turntable 1, and a plurality of holes 103 are provided at the bottom of the profiling groove 101. The graphite circulation pipeline 102 is used to inject graphite suspension into the profiling groove 101. When the blank 2 is forged, graphite lubrication needs to be added. Currently, graphite is manually dipped and smeared around the blank 2. This method is not only inefficient but also easy to pollute the surrounding environment. A graphite circulation pipeline 102 directly connected to the profiling groove 101 is provided in the turntable 1. When the blank 2 is placed in the profiling groove 101, the graphite suspension enters the profiling groove 101 and contacts the blank 2. When the blank 2 is taken away, the graphite can flow away from the holes 103 below and be collected for recycling. Furthermore, an inner groove 104 is provided at the bottom of the profiling groove 101 of the turntable 1, and the planar size of the inner groove 104 is smaller than the planar size of the profiling groove 101. A hole 103 is provided at the bottom of the inner groove 104 and the hole 103 passes through the turntable 1, and a graphite circulation pipeline 102 is provided at the junction of the inner groove 104 and the profiling groove 101, so as to facilitate the introduction of graphite suspension and also facilitate the collection of graphite suspension. At the same time, the bottom of the turntable 1 is fixedly connected to a receiving tray 5 through a column 4, and the receiving tray 5 is used to collect the graphite suspension for the purpose of reuse.

[0038] like Figure 2 、 6 As shown, since it is necessary to ensure that the blank 2 has a certain temperature when forging the blank, the temperature is easy to drop after the blank 2 is placed in the turntable 1. A heating rod 105 is embedded and installed inside the turntable 1. The heating rod 105 is used to keep the turntable 1 in a high temperature state, thereby ensuring that the temperature difference of the blank 2 does not change much during the period of placement. At the same time, the turntable 1 is made of copper, which takes advantage of the excellent thermal conductivity of copper material, reduces the heat loss of the heating rod, speeds up the heat conduction rate, and thus reduces energy consumption.

[0039] The working principle of the present invention is: after the blank 2 is taken out from the heating furnace, it is placed in the profiling groove 101 of the turntable 1, and the clamping robot 3 clamps the blank 2 and puts it into the forging die cavity for forging to prepare the compressor dynamic plate. The blank 2 is positioned and centered by the positioning groove 3011, positioning protrusion 3012 and positioning surface 3013 of the clamping claw 301 in the clamping robot 3, and at the same time, the positioning groove 3011 and positioning protrusion 3012 angularly position the blank 2 to ensure that the blank 2 is in the same state each time it is clamped, which is convenient for precise positioning when placed in the mold cavity. It can clamp and position the blank 2 at any position in the profiling groove 101, thereby improving the clamping efficiency, shortening the loading time of the blank 2, thereby reducing the exposure time of the blank 2, ensuring the temperature of the blank 2, and ensuring the forging effect of the blank 2.

[0040] It is worth noting that the gripping robot 3 in this example is installed in the automation equipment controlled by PLC, which is an existing equipment and will not be described in detail.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used 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 "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A compressor rotor forging and feeding device, characterized in that: include: A middle turntable, wherein the top surface of the middle turntable is provided with a contoured groove; A blank, wherein three lugs are provided on the side of the blank; The clamping robot includes symmetrically arranged clamping jaws, the inner sides of the two clamping jaws are provided with positioning grooves and positioning protrusions, and the clamping jaws are provided with a positioning surface between the positioning groove and the positioning protrusion. When clamping the blank, one of the lugs of the blank is placed in the positioning groove, the side of the blank is in line contact with the positioning surface, and the groove formed between the lug and the side of the blank matches the positioning protrusion.

2. A compressor rotor forging and feeding device according to claim 1, characterized in that: The gripping robot also includes a cylinder, the end face of the cylinder is fixedly connected to a symmetrically arranged fixed plate, a symmetrically arranged swing arm and clamping arm are provided between the two fixed plates, one end of the swing arm is fixedly connected to the clamping claw through the clamping arm, a symmetrical shaft is provided between the two fixed plates, the swing arm is movably connected to the shaft, the other ends of the two swing arms are connected to the driving plate, the telescopic shaft of the cylinder is fixedly connected to the driving plate, and the driving plate moves back and forth to drive the swing arm to rotate around the shaft.

3. A compressor rotor forging and feeding device according to claim 2, characterized in that: The driving plate is provided with symmetrical inclined grooves, and the distance between the two inclined grooves gradually increases from the swing arm to the cylinder. The end of the swing arm is provided with an open groove, and a traction rod is fixedly connected to the open groove, and the traction rod passes through the inclined groove.

4. A compressor rotor forging and feeding device according to claim 3, characterized in that: A limiting rod is fixedly connected between the two fixing plates. A limiting groove is provided on the telescopic shaft of the cylinder along the telescopic direction, and the limiting rod passes through the limiting groove.

5. A compressor rotor forging and feeding device according to claim 1, characterized in that: A stopper is provided at one end of the clamping jaw located in the positioning groove, and the stopper is used to abut against the end surface of the blank.

6. A compressor rotor forging and feeding device according to claim 1, characterized in that: An arc groove is provided on one side of the two clamping jaws which are close to each other.

7. A compressor rotor forging and feeding device according to claim 1, characterized in that: A graphite circulation pipeline communicating with the profiling groove is arranged in the middle turntable, and a plurality of holes are arranged at the bottom of the profiling groove. The graphite circulation pipeline is used for injecting graphite suspension into the profiling groove.

8. A compressor rotor forging and feeding device according to claim 7, characterized in that: An inner groove is provided at the bottom of the profiling groove of the middle turntable. The plane size of the inner groove is smaller than the plane size of the profiling groove. The hole is provided at the bottom of the inner groove and passes through the middle turntable.

9. A compressor rotor plate forging and feeding device according to claim 7, characterized in that: The bottom of the central turntable is fixedly connected with a material receiving tray via a column.

10. A compressor rotor plate forging and feeding device according to claim 7, characterized in that: A heating rod is embedded in the middle turntable.

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