Air conditioning compressor piston forging device

Abstract

The invention discloses a technical field of piston forging, specifically an air-conditioning compressor piston forging device, comprising a forging table, a rectangular groove is provided at the upper end of the forging table, an intermittent rotating table is rotatably connected in the rectangular groove through the output shaft of a stepping motor, a plurality of rotating support plates are fixedly connected in a ring array on the side of the intermittent rotating table, a circular mounting groove is provided at the upper end of the rotating support plate, a movable groove is provided on the side of the circular mounting groove, a lower die seat is installed in the circular mounting groove, a die cavity is provided at the upper end of the lower die seat, and a positioning groove is provided on the side of the lower die seat. The beneficial effect of the invention is that during the forging process of the air-conditioning compressor piston, a rod is placed in a feeding pipe, the rod slides downward along the feeding pipe to between two limit guide seats, and when loading, the rod only needs to be placed in a hopper at the upper end of the feeding pipe, and there is no need for the staff to extend their hands between the upper die seat and the lower die seat.

Description

Technical Field

[0001] The invention relates to the technical field of piston forging, in particular to a piston forging device for an air-conditioning compressor. Background Art

[0002] The piston air compressor is a type of reciprocating air compressor, and its compression element is a piston that reciprocates inside the cylinder. During the forging process of the piston forging, since the two ends of the piston forging are multi-layer cylindrical structures, and the middle position is a relatively thin sheet structure, and the raw material used for forging is cylindrical aluminum. Therefore, during the forging process, the two die holders are generally controlled by the forging press to close the die, and finally the forging is forged into the shape of a piston. In the process of extrusion forging of the bar, most of the time, two extrusion forgings are required. In the process of extrusion forging, when the upper and lower dies are closed, some materials will be squeezed out along the gap between the upper and lower dies to produce deformation after the bar is deformed, causing the air-conditioning compressor piston to be dissatisfied after forging, that is, causing the air-conditioning compressor piston to have gaps or damage, thereby affecting the quality of forging; after each forging is completed, the previous piston part needs to be taken out of the die cavity before the next forging can be carried out, which greatly reduces the efficiency of forging. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] The object of the present invention is to provide an air-conditioning compressor piston forging device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an air-conditioning compressor piston forging device, comprising a forging table, a rectangular groove is provided at the upper end of the forging table, an intermittent rotating table is rotatably connected in the rectangular groove through the output shaft of a stepping motor, a plurality of rotating support plates are fixedly connected in a circular array on the side of the intermittent rotating table, a circular mounting groove is provided at the upper end of the rotating support plate, a movable groove is provided on the side of the circular mounting groove, a lower die seat is installed in the circular mounting groove, a die cavity is provided at the upper end of the lower die seat, and a positioning groove is provided on the side of the lower die seat;

[0006] The locking mechanism is a kind of locking mechanism that is configured to lock the locking plate, and the locking plate has the locking cam which is secured on both sides of the locking plate and is designed to lock the locking plate.

[0007] The electric telescopic rod is fixedly installed in the forging table, and the upper end of the forging table is fixedly connected with a concave supporting plate, and the upper end of the concave supporting plate is fixedly installed with a hydraulic cylinder, and the lower end of the inner rod of the hydraulic cylinder passes through the upper end of the concave supporting plate and is fixedly connected to the upper pressing die, and the inner side of the concave supporting plate is fixedly connected with a cross plate below the upper pressing die, and a positioning and feeding mechanism is installed on the upper end of the cross plate, and a feeding pipe is installed on the upper end of the cross plate above the positioning and feeding mechanism, and a guide groove is opened at the upper end of the cross plate, and a feeding groove is opened downwardly through the bottom of the guide groove, and a plurality of docking holes are symmetrically opened on both sides of the guide groove at the upper end of the cross plate, and an upper cover plate is symmetrically installed on the upper end of the guide groove, and the positioning and feeding mechanism is installed in the guide groove;

[0008] A forming block is fixedly installed at the lower end of the upper die, and a plurality of positioning rods are symmetrically fixedly connected to the lower end of the upper die. The positioning rods are slidably inserted into the docking holes up and down, and the positioning and feeding mechanism includes two limit guide seats symmetrically installed in the guide groove, a limit groove provided at one end of the limit guide seat, and two U-shaped spring pieces symmetrically fixedly installed on the limit guide seat away from one end of the limit groove. The two limit guide seats are provided with slopes at the ends close to each other, and the limit grooves are provided at the lower ends of the slopes. The two limit guide seats are slidably connected to the guide grooves, and grooves are symmetrically provided at both ends of the guide grooves. Both sides of the limit guide seat away from the end of the limit groove are symmetrically protruded with protrusions, and the protrusions on the sides of the limit guide seat are slidably connected to the grooves.

[0009] As a preferred solution of the air-conditioning compressor piston forging device described in the present invention, an annular groove is opened at the upper end of the forging table, and a fan-shaped block is fixedly connected to the lower end of the rotating support plate. The lower end of the rotating support plate is in rotational contact with the upper end of the forging table, and the fan-shaped block is rotationally connected to the annular groove.

[0010] As a preferred solution of the air-conditioning compressor piston forging device described in the present invention, a regular polygonal slot is downwardly opened at the bottom of the circular mounting groove, and a regular polygonal ring is fixedly connected to the lower end of the lower die seat, and the regular polygonal ring is clamped with the regular polygonal slot.

[0011] As a preferred solution of the air-conditioning compressor piston forging device described in the present invention, two symmetrical side walls in the movable groove are provided with sliding grooves, a through groove is provided downwardly at the bottom of the movable groove, the sliding block is slidably connected to the sliding groove, the lower end of the transmission plate passes downwardly through the through groove, and the transmission plate is slidably connected to the through groove, and the locking card plate is clamped with the positioning groove.

[0012] The beneficial effects of the present invention are:

[0013] 1. During the forging process of the air-conditioning compressor piston, the bar is placed in the feeding pipe, and the bar slides down along the feeding pipe to between the two limit guide seats. When loading, it is only necessary to put the bar into the hopper at the upper end of the feeding pipe, and the staff does not need to put their hands between the upper die seat and the lower die seat, thereby ensuring the safety of the staff; when the forming block pushes the bar to move downward, the lower end of the forming block and the bar are inserted into the die cavity of the lower die seat through the feeding groove, and the forming block and the die cavity cooperate to squeeze the bar to produce deformation, so that the bar inside the die cavity forms the shape of the air-conditioning compressor piston. After extrusion and molding, the positioning rod is inserted downward along the docking hole at the same time, so that the forming block and the lower die seat are accurately docked; the upper die is driven upward by the inner rod of the telescopic cylinder to move the forming block out of the lower die seat, and at the same time, the lower end of the forming block is away from the limit guide seat, so that the new bar can slide down to the limit groove of the two limit guide seats.

[0014] 2. The intermittent rotary table is driven by a stepper motor to rotate one-third of the circle. When the intermittent rotary table rotates, it drives the three rotating support plates to rotate along the upper end of the forging table, so that one rotating support plate is moved away from under the concave support plate, and the lower die seat with the air-conditioning compressor piston formed in the die cavity is moved away from under the forming block. At the same time, a rotating support plate drives an empty lower die seat in the die cavity to move to the bottom of the forming block. At this time, the next round of air-conditioning compressor piston forging operation can be carried out.

[0015] 3. Through the positioning and feeding mechanism, the rod can accurately fall down into the die cavity of the lower die seat, so the forging of the air-conditioning compressor piston can be completed at one time. In addition, the deformation process of the rod during the extrusion process is all in the die cavity, so that the material will not escape, thereby ensuring the forging quality of the air-conditioning compressor piston. After the processing is completed, the lower die seat can be directly removed and a new lower die seat can be moved in, so that the forging of the next air-conditioning compressor piston can continue. In the process of forging the air-conditioning compressor piston, the air-conditioning compressor piston in the previous lower die seat can be disassembled, which greatly improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 This is a schematic diagram of the structure of the air-conditioning compressor piston forging device of the present invention;

[0018] Figure 2 This is a cross-sectional view of the structure of the air-conditioning compressor piston forging device of the present invention;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 4 It is a partial structural cross-sectional view of the air-conditioning compressor piston forging device of the present invention;

[0021] Figure 5 It is an exploded view of the forging table, the rotating support plate, the lower die seat, the locking mechanism and the limiting mechanism of the present invention;

[0022] Figure 6 It is a side view of the concave support plate, the horizontal plate and the positioning and feeding mechanism structure of the present invention;

[0023] Figure 7 It is an exploded view of the upper die, cross plate, positioning feeding mechanism and unloading pipeline structure of the present invention.

[0024] In the figure: 1, forging table; 11, rectangular groove; 12, strip groove; 13, annular groove; 2, intermittent rotating table; 21, rotating support plate; 22, circular mounting groove; 23, regular polygonal slot; 24, movable groove; 25, slide groove; 26, through groove; 27, fan-shaped block; 3, lower die seat; 31, die cavity; 32, positioning groove; 33, regular polygonal ring; 4, movable block; 41, slider; 42, locking card plate; 43, locking spring ; 44. Transmission plate; 5. Concave movable plate; 51. Strip plate; 52. Fixed block; 53. Adjustment block; 54. Electric telescopic rod; 6. Concave support plate; 61. Hydraulic cylinder; 62. Upper die; 63. Forming block; 64. Positioning plug rod; 7. Cross plate; 71. Guide groove; 72. Feed chute; 73. Docking hole; 74. Upper cover plate; 8. Limit guide seat; 81. Limit groove; 82. U-shaped spring piece; 9. Feed pipe. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification, and the technical solutions in the embodiments of the present invention are clearly and completely described. 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 creative work are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] See also Figures 1 to 7 The present invention provides a technical solution: an air-conditioning compressor piston forging device, comprising a forging table 1, a rectangular groove 11 is opened at the upper end of the forging table 1, an intermittent rotating table 2 is rotatably connected to the rectangular groove 11 through the output shaft of a stepping motor, the lower end of the intermittent rotating table 2 is fixedly plugged with the output shaft of the stepping motor, the output shaft of the stepping motor is rotatably connected to the forging table 1, the stepping motor is fixedly installed at the lower end of the forging table 1, the lower end of the intermittent rotating table 2 is rotatably contacted with the bottom of the rectangular groove 11, and the side of the intermittent rotating table 2 is fixedly connected with a plurality of rotating support plates 21 in a ring array, and the rotating support plates A circular mounting groove 22 is provided at the upper end of 21, a movable groove 24 is provided on the side of the circular mounting groove 22, a lower die base 3 is installed in the circular mounting groove 22, a die cavity 31 is provided at the upper end of the lower die base 3, a positioning groove 32 is provided on the side of the lower die base 3, a locking mechanism for fixing the lower die base 3 is installed in the movable groove 24, a limiting mechanism is installed in the rectangular groove 11, a concave support plate 6 is fixedly connected to the upper end of the forging table 1, a hydraulic cylinder 61 is fixedly installed on the upper end of the concave support plate 6, and the lower end of the rod in the hydraulic cylinder 61 passes through the upper end of the concave support plate 6 and is fixedly connected to the upper die 62.

[0028] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 An annular groove 13 is provided at the upper end of the forging table 1, and the annular groove 13 is arranged on the outside of the rectangular groove 11. A fan-shaped block 27 is fixedly connected to the lower end of the rotating support plate 21. The lower end of the rotating support plate 21 is in rotational contact with the upper end of the forging table 1, and the fan-shaped block 27 is rotationally connected to the annular groove 13.

[0029] The intermittent rotating table 2 is driven to rotate by the output shaft of the stepping motor. The stepping motor drives the intermittent rotating table 2 to rotate one-third of the circumference each time. After the intermittent rotating table 2 rotates once, it pauses for a period of time, and then the intermittent rotating table 2 is driven to rotate one-third of the circumference by the stepping motor, and the cycle continues.

[0030] When the intermittent rotating table 2 rotates, it drives the rotating support plate 21 to rotate along the upper end of the forging table 1, and the rotating support plate 21 drives the fan-shaped block 27 to rotate along the annular groove 13, so that the intermittent rotating table 2 and the rotating support plate 21 can rotate stably, and when the rotating support plate 21 rotates, it drives the lower die base 3 to rotate.

[0031] See also Figure 2 , Figure 3 and Figure 5 The bottom of the circular mounting groove 22 is provided with a regular polygonal slot 23 downwardly, and the lower end of the lower die base 3 is fixedly connected with a regular polygonal ring 33, and the regular polygonal ring 33 is clamped with the regular polygonal slot 23. A handle is symmetrically fixedly installed on the side of the lower die base 3, and a notch is symmetrically opened on the upper end of the rotating support plate 21 on the side of the circular mounting groove 22, and the handle is set in the notch;

[0032] When installing the lower die base 3, first install the lower die base 3 downward along the circular installation groove 22, and at the same time align the regular polygon ring 33 at the lower end of the lower die base 3 with the regular polygon slot 23. After the lower die base 3 is installed, the regular polygon ring 33 at the lower end of the lower die base 3 is clamped in the regular polygon slot 23, and while installing, the positioning groove 32 opened on the lower die base 3 faces the movable groove 24.

[0033] See also Figures 2 to 5 The locking mechanism includes a movable block 4 slidably connected in the movable groove 24, sliders 41 symmetrically fixedly connected to both ends of the movable block 4, a locking card plate 42 fixedly connected to the side of the movable block 4, two locking springs 43 fixedly installed on the side of the movable block 4 away from the locking card plate 42, and a transmission plate 44. The two locking springs 43 are symmetrically distributed on both sides of the transmission plate 44, and one end of the locking spring 43 abuts against one side of the movable groove 24. The locking spring 43 applies an elastic force to the movable block 4, and the movable block 4 moves closer to the lower mold base 3 under the action of the elastic force of the locking spring 43.

[0034] Two symmetrical side walls in the movable groove 24 are both provided with sliding grooves 25, and a through groove 26 is downwardly provided at the bottom of the movable groove 24. The slider 41 is slidably connected to the sliding groove 25, and the lower end of the transmission plate 44 passes downward through the through groove 26, and the transmission plate 44 is slidably connected to the through groove 26, and the locking card plate 42 is clamped with the positioning groove 32.

[0035] When the movable block 4 moves, it drives the slider 41 and the transmission plate 44 to move synchronously, so that the transmission plate 44 slides along the through groove 26, and at the same time, the slider 41 slides along the slide groove 25, so that the movable block 4 can only slide along the movable groove 24 to prevent the movable block 4 from moving upward. At the same time, the movable block 4 drives the locking card plate 42 to move, so that the locking card plate 42 is engaged with the positioning groove 32 on the side of the lower mold base 3 to lock the lower mold base 3, or the locking card plate 42 is moved away from the lower mold base 3 to release the lock on the lower mold base 3.

[0036] See also Figure 2 , Figure 4 and Figure 5 The limiting mechanism includes a concave moving plate 5 slidably installed at the bottom of the rectangular groove 11, two strip plates 51 symmetrically fixedly connected on both sides of the concave moving plate 5, a fixed block 52 and two adjusting blocks 53 fixedly installed on the upper end of the concave moving plate 5, and two electric telescopic rods 54 symmetrically fixedly installed at both ends of the concave moving plate 5, and the electric telescopic rods 54 are fixedly installed in the forging table 1.

[0037] The inner side of the rectangular groove 11 is symmetrically provided with a strip groove 12, and the strip plate 51 is slidably connected with the strip groove 12. Two adjustment blocks 53 are symmetrically distributed at the two protruding ends of the concave movable plate 5, and the two adjustment blocks 53 are distributed in an eight-shaped shape. The fixed block 52 is arranged at the end of the concave movable plate 5 away from the protruding end, and the concave movable plate 5 is driven to slide along the rectangular groove 11 by the inner rod extension of the electric telescopic rod 54, and the concave movable plate 5 drives the strip plate 51 to slide along the strip groove 12, so that the concave movable plate 5 can stably move along the rectangular groove 11;

[0038] When the inner rod of the electric telescopic rod 54 is extended, the concave movable plate 5 drives a fixed block 52 and two adjusting blocks 53 to move, so that the fixed block 52 is close to a locking mechanism under the concave supporting plate 6, and at the same time, the two adjusting blocks 53 push the transmission plates 44 of the other two locking mechanisms to move, so that the two transmission plates 44 respectively drive the two movable blocks 4 to move, so that the locking card plates 42 in the two locking mechanisms are respectively moved out of the two lower mold seats 3. At this time, the two lower mold seats 3 that are not under the concave supporting plate 6 can be directly disassembled and removed from the circular mounting groove 22; at the same time, the fixed block 52 is abutted against the transmission plate 44 in the locking mechanism under the concave supporting plate 6, so that the locking card plates 42 in the locking mechanism are firmly stuck in the lower mold seat 3, so that the lower mold seat 3 is firmly installed in the rotating supporting plate 21, so that the upper die 62 and the lower mold seat 3 can be accurately molded.

[0039] When the inner rod of the electric telescopic rod 54 contracts, the fixed block 52 and the two adjusting blocks 53 are away from the locking mechanism. When the two adjusting blocks 53 are away from the locking mechanism, under the action of the elastic force of the locking spring 43, the movable block 4 drives the locking card plate 42 to be clamped into the positioning groove 32 on the side of the lower mold base 3, thereby fixing the lower mold base 3. The lower mold base 3 is fixedly connected to the rotating support plate 21 through the provided locking mechanism.

[0040] When the intermittent rotating table 2 rotates, the electric telescopic rod 54 is in a retracted state, the intermittent rotating table 2 drives the three rotating support plates 21 to rotate, and the three rotating support plates 21 drive the three locking mechanisms to rotate. When the locking mechanisms rotate, the transmission plate 44 in the locking mechanisms does not contact the one fixed block 52 and the two adjustment blocks 53, so that the three rotating support plates 21 can rotate stably.

[0041] Embodiment 2:

[0042] During forging, the size of the bars used for forging is similar to the size of the die cavity of the lower die seat, which brings great inconvenience to forging loading and greatly affects the efficiency of loading. In addition, when loading, the employees need to extend their hands under the upper die seat. Once an error occurs and the equipment is started, it will directly cause injuries to the staff, posing a great safety hazard.

[0043] A transverse plate 7 is fixedly connected to the inner side of the concave support plate 6 below the upper die 62 , a positioning and feeding mechanism is installed on the upper end of the transverse plate 7 , and a feeding pipe 9 is installed on the upper end of the transverse plate 7 above the positioning and feeding mechanism.

[0044] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 A guide groove 71 is provided at the upper end of the horizontal plate 7, and a material discharge groove 72 is provided downwardly through the bottom of the guide groove 71. A plurality of docking holes 73 are symmetrically provided on both sides of the guide groove 71 at the upper end of the horizontal plate 7. An upper cover plate 74 is symmetrically installed at the upper end of the guide groove 71, and a positioning and loading mechanism is installed in the guide groove 71.

[0045] A molding block 63 is fixedly mounted on the lower end of the upper die 62 , and a plurality of positioning rods 64 are symmetrically fixedly connected to the lower end of the upper die 62 . The positioning rods 64 are slidably plugged into the docking holes 73 up and down.

[0046] The positioning and feeding mechanism includes two limit guide seats 8 symmetrically installed in the guide groove 71, a limit groove 81 opened at one end of the limit guide seat 8, and two U-shaped spring pieces 82 symmetrically fixedly installed on the limit guide seat 8 and away from the limit groove 81. The two limit guide seats 8 are provided with slopes at the ends close to each other, and the limit groove 81 is opened at the lower end of the slope. The two limit guide seats 8 are both slidably connected to the guide groove 71. The limit guide seat 8 and the U-shaped spring piece 82 are both arranged below the upper cover plate 74, and the limit guide seat 8 is in sliding contact with the lower end of the upper cover plate 74. One side of the U-shaped spring piece 82 abuts against the side of the guide groove 71, and the U-shaped spring piece 82 applies an elastic force to the limit guide seat 8.

[0047] Grooves are symmetrically provided at both ends of the guide groove 71 , and protrusions are symmetrically provided on both sides of the end of the limiting guide seat 8 away from the limiting groove 81 , and the protrusions on the side of the limiting guide seat 8 are slidably connected with the grooves.

[0048] When one end of a rotating support plate 21 rotates to the bottom of the concave support plate 6, the rotating support plate 21 drives a lower die base 3 to rotate to just below the forming block 63. At this time, as the forming block 63 moves downward, the lower end of the forming block 63 passes through the feed chute 72 and is accurately inserted into the mold cavity 31 of the lower die base 3. The size of the forming block 63 matches the size of the mold cavity 31.

[0049] The lower end of the feed pipe 9 is tilted downward, and the lower end of the feed pipe 9 is at the upper end of the slope of the limit guide seat 8. When the forming block 63 moves up and down, the lower end of the feed pipe 9 does not contact the side of the forming block 63, and the rod rolls downward along the feed pipe 9, and the rod slides downward along the lower end of the feed pipe 9 to between the two limit guide seats 8, and the rod is stuck between the two limit grooves 81.

[0050] When a rod is in the limiting groove 81, the other rods are still in the feeding pipe 9. At this time, the rod at the bottom of the feeding pipe 9 abuts against the rod in the limiting groove 81. At the same time, the rod in the limiting groove 81 is clamped and positioned by two limiting guide seats 8, so that the rod can be accurately located above the lower die seat 3 under the concave support plate 6. When the forming block 63 moves downward, the rod at the bottom of the feeding pipe 9 slides up and down in contact with the side of the forming block 63.

[0051] The remaining structures are the same as those of Example 1.

[0052] Working principle: During the forging process of the air-conditioning compressor piston, the bar is placed in the feed pipe 9, and the bar slides down along the feed pipe 9 to between the two limit guide seats 8, so that the bar is stuck in the two limit grooves 81, and at the same time, the two limit guide seats 8 are pushed by the elastic force of the U-shaped spring sheet 82 to clamp and position the bar, so that the bar is directly above the upper die cavity 31 of the lower die seat 3;

[0053] The upper die 62 is driven downward by the inner rod of the hydraulic cylinder 61, and the upper die 62 drives the forming block 63 and the positioning rod 64 to move downward. When the lower end of the forming block 63 contacts the rod, the forming block 63 pushes the rod to move downward. During the downward movement of the rod, the two limiting guide seats 8 are pushed away from each other, so that the rod can move downward along the limiting guide seats 8 into the material discharge chute 72. When the limiting guide seats 8 move, they squeeze the U-shaped spring piece 82. Under the action of the elastic force of the U-shaped spring piece 82, the rod can accurately move downward along the material discharge chute 72.

[0054] The lower end of the forming block 63 and the rod are inserted into the mold cavity 31 of the lower mold base 3 through the feed groove 72. At this time, the forming block 63 continues to move downward by one end, and the rod is squeezed and deformed by the cooperation of the forming block 63 and the mold cavity 31, so that the rod inside the mold cavity 31 forms the shape of an air-conditioning compressor piston. After extrusion molding, the positioning rod 64 is inserted downward along the docking hole 73 at the same time, so that the forming block 63 and the lower mold base 3 are accurately docked.

[0055] The upper die 62 is driven upward by the inner rod of the hydraulic cylinder 61, and the upper die 62 drives the forming block 63 and the positioning rod 64 to move upward, so that the forming block 63 is moved out of the lower die seat 3, and at the same time, the lower end of the forming block 63 is moved away from the limiting guide seat 8, so that the new rod can slide downward into the limiting groove 81 of the two limiting guide seats 8.

[0056] The intermittent rotating table 2 is driven by a stepper motor to rotate one-third of a circle. When the intermittent rotating table 2 rotates, it drives the rotating support plate 21 to rotate along the upper end of the forging table 1, so that one rotating support plate 21 is moved away from under the concave support plate 6, so that the lower die seat 3 with the air-conditioning compressor piston formed in the die cavity 31 is moved away from under the forming block 63. At the same time, one rotating support plate 21 drives an empty lower die seat 3 in the die cavity 31 to move to under the forming block 63. At this time, the next round of air-conditioning compressor piston forging operation can be carried out.

[0057] By extending the inner rod of the electric telescopic rod 54, the concave movable plate 5 drives a fixed block 52 and two adjusting blocks 53 to move, so that the fixed block 52 is close to a locking mechanism under the concave support plate 6, and at the same time, the two adjusting blocks 53 push the transmission plates 44 of the other two locking mechanisms to move, so that the two transmission plates 44 respectively drive the two movable blocks 4 to move, so that the locking card plates 42 in the two locking mechanisms are respectively moved out of the two lower die seats 3. At this time, the two lower die seats 3 that are not under the concave support plate 6 can be directly disassembled and removed from the circular mounting groove 22, which is convenient for unloading and cleaning operations of the lower die seats 3;

[0058] The fixed block 52 is brought into contact with the transmission plate 44 in the locking mechanism below the concave support plate 6, so that the locking clamping plate 42 in the locking mechanism is firmly clamped in the lower die base 3, thereby firmly installing the lower die base 3 in the rotating support plate 21, so that the upper die 62 and the lower die base 3 can be accurately molded, and this cycle is repeated, so that the air-conditioning compressor piston forging process can be continuously carried out.

[0059] The positioning and feeding mechanism is set to enable the rod to accurately fall downward into the die cavity 31 of the lower die seat 3, so that the forging of the air-conditioning compressor piston can be completed at one time, and the deformation process of the rod during the extrusion process is all in the die cavity 31, so that the material will not escape, thereby ensuring the forging quality of the air-conditioning compressor piston, and after the processing is completed, the lower die seat 3 is directly removed and a new lower die seat 3 is moved in, so that the forging of the next air-conditioning compressor piston can be continued, and during the forging process of the air-conditioning compressor piston, the air-conditioning compressor piston in the previous lower die seat 3 can be disassembled, which greatly improves the processing efficiency;

[0060] When loading materials, it is only necessary to put the rods into the hopper at the upper end of the unloading pipe 9, and the staff does not need to put their hands between the upper die 62 and the lower die seat 3, thereby ensuring the safety of the staff.

[0061] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air-conditioning compressor piston forging device, comprising a forging table (1), characterized in that: The forging table (1) has a rectangular groove (11) at the upper end, an intermittent rotating table (2) is rotatably connected in the rectangular groove (11) via the output shaft of a stepping motor, a plurality of rotating support plates (21) are fixedly connected in a ring array on the side of the intermittent rotating table (2), a circular mounting groove (22) is formed at the upper end of the rotating support plate (21), a movable groove (24) is formed on the side of the circular mounting groove (22), a lower die seat (3) is installed in the circular mounting groove (22), a die cavity (31) is formed at the upper end of the lower die seat (3), and a positioning groove (32) is formed on the side of the lower die seat (3); A locking mechanism for fixing the lower die base (3) is installed in the movable groove (24), the locking mechanism comprising a movable block (4) slidably connected in the movable groove (24), sliders (41) symmetrically fixedly connected to both ends of the movable block (4), a locking clamping plate (42) fixedly connected to the side of the movable block (4), two locking springs (43) fixedly installed on the side of the movable block (4) away from the locking clamping plate (42) and a transmission plate (44), the two locking springs (43) are symmetrically distributed on both sides of the transmission plate (44), one end of the locking spring (43) is in contact with one side of the movable groove (24), and a limiting mechanism is installed in the rectangular groove (11). The limiting mechanism comprises a concave movable plate (5) slidably mounted at the bottom of the rectangular groove (11), two strip plates (51) symmetrically fixedly connected at both sides of the concave movable plate (5), a fixed block (52) and two adjustment blocks (53) fixedly mounted at the upper end of the concave movable plate (5), and two electric telescopic rods (54) symmetrically fixedly mounted at both ends of the concave movable plate (5), the inner side of the rectangular groove (11) is symmetrically provided with strip grooves (12), the strip plates (51) are slidably connected to the strip grooves (12), and the two adjustment blocks (53) are symmetrically distributed at the two protruding ends of the concave movable plate (5), and the two adjustment blocks (53) are distributed in an eight-shaped pattern; The electric telescopic rod (54) is fixedly installed in the forging table (1); the upper end of the forging table (1) is fixedly connected to a concave support plate (6); the upper end of the concave support plate (6) is fixedly installed with a hydraulic cylinder (61); the lower end of the rod inside the hydraulic cylinder (61) passes through the upper end of the concave support plate (6) and is fixedly connected to the upper die (62); the inner side of the concave support plate (6) is fixedly connected to a transverse plate (7) below the upper die (62); the upper end of the transverse plate (7) is installed A positioning and feeding mechanism is provided, a feeding pipe (9) is installed at the upper end of the horizontal plate (7) above the positioning and feeding mechanism, a guide groove (71) is provided at the upper end of the horizontal plate (7), a feeding groove (72) is provided through the bottom of the guide groove (71) downwardly, a plurality of docking holes (73) are symmetrically provided on both sides of the guide groove (71) at the upper end of the horizontal plate (7), an upper cover plate (74) is symmetrically installed at the upper end of the guide groove (71), and the positioning and feeding mechanism is installed in the guide groove (71); The lower end of the upper die (62) is fixedly mounted with a forming block (63), and the lower end of the upper die (62) is symmetrically fixedly connected with a plurality of positioning rods (64), and the positioning rods (64) are slidably plugged into the docking holes (73) up and down. The positioning and feeding mechanism comprises two limiting guide seats (8) symmetrically mounted in the guide groove (71), a limiting groove (81) provided at one end of the limiting guide seat (8), and a limiting groove (82) symmetrically fixedly mounted on the limiting guide seat (8) away from the limiting groove ( The guide groove (81) is provided with two U-shaped spring pieces (82) at one end of the two limit guide seats (8), the ends of the two limit guide seats (8) close to each other are provided with a slope, the limit groove (81) is provided at the lower end of the slope, the two limit guide seats (8) are slidably connected to the guide groove (71), the two ends of the guide groove (71) are symmetrically provided with grooves, the two sides of the limit guide seat (8) away from the limit groove (81) are symmetrically provided with protrusions, and the protrusions on the side of the limit guide seat (8) are slidably connected to the groove.

2. The air-conditioning compressor piston forging device according to claim 1, characterized in that: An annular groove (13) is formed at the upper end of the forging table (1), a fan-shaped block (27) is fixedly connected to the lower end of the rotating support plate (21), the lower end of the rotating support plate (21) is in rotational contact with the upper end of the forging table (1), and the fan-shaped block (27) is rotationally connected to the annular groove (13).

3. The air-conditioning compressor piston forging device according to claim 1, characterized in that: A regular polygonal slot (23) is formed downwardly at the bottom of the circular mounting slot (22), and a regular polygonal ring (33) is fixedly connected to the lower end of the lower die seat (3), the regular polygonal ring (33) being snap-fitted to the regular polygonal slot (23).

4. The air-conditioning compressor piston forging device according to claim 1, characterized in that: Two symmetrical side walls in the movable groove (24) are each provided with a slide groove (25), a through groove (26) is downwardly provided at the bottom of the movable groove (24), the slide block (41) is slidably connected to the slide groove (25), the lower end of the transmission plate (44) passes downwardly through the through groove (26), and the transmission plate (44) is slidably connected to the through groove (26), and the locking card plate (42) is clamped to the positioning groove (32).

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