Single-process stamping die accurate in positioning and forming process

Abstract

The invention relates to an accurate-positioning single-process stamping die and a forming process, and relates to the technical field of stamping equipment.The accurate-positioning single-process stamping die comprises an upper stamping plate, the lower end of the upper stamping plate is fixedly connected with a first upper stamping disc, a lower stamping plate is arranged below the upper stamping plate, and the lower stamping plate is fixedly connected with a first lower stamping disc; the first upper stamping disc and the first lower stamping disc are coaxially arranged, an upper stamping ring groove is formed in the first upper stamping disc, an upper stamping block is fixedly connected into the upper stamping ring groove, a lower stamping groove is formed in the first lower stamping disc, and a lower stamping block is installed in the center of the lower stamping groove. The method has the effect that the punching datum point of the punching machine can be conveniently determined in the production process of the upper cover of the compressor.

Description

Technical Field

[0001] The present application relates to the technical field of stamping equipment, and in particular to a single-step stamping die and forming process with precise positioning. Background Art

[0002] The air conditioning compressor is the core component of the air conditioning refrigeration system. Its main function is to compress and drive the refrigerant in the refrigerant circuit. The air conditioning compressor includes its outer shell and upper cover.

[0003] In the related art, the upper cover of the air conditioner compressor is usually stamped by a stamping machine from a circular sheet metal part. However, in actual production, the stamping machine needs to be accurately positioned at the center of the circular sheet metal part. At this time, workers need to adjust the stamping reference point of the stamping machine many times and accurately. Therefore, in order to facilitate the stamping reference point of the stamping machine to be at the center of the circular sheet metal part, the present application provides a single-step stamping die and forming process with accurate positioning. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a single-step stamping die and forming process with precise positioning, so as to solve the technical problem that the stamping reference point of the existing stamping machine is difficult to accurately determine.

[0005] First aspect The present application provides a single-process stamping die with precise positioning, which adopts the following technical solution: A single-process stamping die with precise positioning comprises an upper stamping plate, a first upper stamping disk is fixedly connected to the lower end of the upper stamping plate, a lower stamping plate is provided below the upper stamping plate, a first lower stamping disk is fixedly connected to the lower stamping plate, the first upper stamping disk and the first lower stamping disk are coaxially arranged, an upper stamping ring groove is provided on the first upper stamping disk, an upper stamping block is fixedly connected in the upper stamping ring groove, a lower stamping groove is provided on the first lower stamping disk, and a lower stamping block is installed at the center of the lower stamping groove.

[0006] By adopting the above technical scheme, during use, the circular sheet metal part can be placed in the lower punching groove in the first lower punching plate, and the circular sheet metal part can be supported by the lower punching block, and then the upper punching plate is fixed to the output end of the punching machine in the prior art, and then the punching machine is controlled to drive the first upper punching plate to descend, and the circular sheet metal part is punched into the air-conditioning compressor upper cover through the cooperation of the upper punching ring groove and the lower punching groove, thereby the circular sheet metal part can be quickly positioned through the lower punching groove, eliminating the process of workers repeatedly adjusting the position of the circular sheet metal part, and can quickly determine the stamping reference point of the punching machine, thereby improving the production efficiency of the air-conditioning compressor upper cover.

[0007] Optionally, the lower punch block is passed through and slidably connected at the center of the lower punch groove, and a lifting cylinder for driving the lower punch block to rise or fall is provided in the first lower punch plate, and the telescopic end of the lifting cylinder is fixedly connected to the lower punch block.

[0008] By adopting the above technical solution, after the stamping is completed, the lifting cylinder can be controlled to drive the lower stamping block to rise, thereby exposing the upper cover outside the lower stamping groove, making it easier to take the lower cover.

[0009] Optionally, a second upper punching plate is fixedly connected to the lower end of the upper punching plate, and a second lower punching plate is fixedly connected to the lower punching plate. The second upper punching plate and the second lower punching plate are coaxially arranged. A trimming ring groove is opened at the upper end of the second lower punching plate, and the width of the trimming ring groove gradually decreases from top to bottom. A lower limit block is provided in the trimming ring groove, and the lower limit block is fixedly connected to the second lower punching plate. An upper limit block is fixedly connected to the second upper punching plate, and the upper limit block is coaxially arranged with the lower limit block.

[0010] By adopting the above technical solution, the upper cover can be moved to the second lower stamping plate after being stamped by the first upper stamping plate and the first lower stamping plate, and then the upper limit block on the pressure plate is lowered and the upper cover is stamped, so that the lower edge of the upper cover abuts against the inner wall of the trimming ring groove, and under the abutment effect of the trimming ring groove, the lower edge of the upper cover is squeezed out of the chamfer, thereby making the lower end of the upper cover more rounded.

[0011] Optionally, a vent hole is provided on the lower punching block.

[0012] By adopting the above technical solution, the gas accumulated at the upper cover during the stamping process can be discharged through the vent holes.

[0013] Optionally, a limiting column is fixedly connected to the upper punching plate, and a limiting sleeve is fixedly connected to the lower punching plate. The limiting column corresponds to the limiting sleeve one by one and the limiting column is slidably inserted in the limiting sleeve.

[0014] By adopting the above technical solution, the downward pressing trajectory of the upper punching plate can be limited by the limiting column and the limiting sleeve, thereby improving its downward pressing stability.

[0015] Optionally, a lifting cylinder for lifting the upper cover is slidably connected in the lower stamping groove, and a movable cylinder for driving the lifting cylinder to rise or fall is provided at the lower end of the lifting cylinder, and a movable component for moving the upper cover on the lifting cylinder to the trimming ring groove is provided between the first lower stamping plate and the second lower stamping plate.

[0016] By adopting the above technical solution, after the stamping is completed, the lifting cylinder can be raised by moving the cylinder, so that the upper cover after the stamping is placed outside the lower stamping groove, and then the upper cover can be automatically moved to the second lower stamping plate for stamping through the moving component.

[0017] Optionally, the moving assembly includes a mounting plate fixedly connected to the lower stamping plate, the mounting plate is slidably connected to a driving rod, one end of the driving rod is fixedly connected to an arc plate, the driving rod slides in a direction parallel to the end face of the lower stamping plate, the driving rod is fixedly connected to a first rack arranged along the length direction of the driving rod, one side of the first rack is meshed with a first gear, the lower end of the first gear is fixedly connected to a first bevel gear, the first bevel gear is coaxially arranged with the first gear, one side of the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected to a second gear, the second gear is coaxially arranged with the second bevel gear, the upper stamping plate is fixedly connected to a transmission rod, and the transmission rod is fixedly connected There is a second rack, which is arranged along the length direction of the transmission rod, and the second rack is meshed with the second gear. When the transmission rod descends with the upper stamping plate, the driving rod drives the arc plate to move between the first lower stamping plate and the second lower stamping plate, and finally makes the arc plate connect the second lower stamping plate and the first lower stamping plate. The lower end of the upper stamping plate is fixedly connected with an electric telescopic rod, and the telescopic end of the electric telescopic rod is fixedly connected with a placement plate. A rotating motor is installed on the mounting plate, and the output shaft of the rotating motor passes through the placement plate and is fixedly connected with the arc rod, and the arc rod is used to move the upper cover along the arc plate from the first lower stamping plate to the second lower stamping plate.

[0018] By adopting the above technical scheme, when the upper stamping plate completes the stamping of the upper cover, the upper stamping plate will rise. At this time, the transmission rod will drive the second rack to rise, thereby causing the second gear and the second bevel gear to rotate, thereby causing the second bevel gear to drive the first rack to move, thereby causing the driving rod to slide on the mounting plate, thereby causing the driving rod to drive the arc plate to move between the first lower stamping plate and the second lower stamping plate, and finally causing the arc plate to connect the second lower stamping plate and the first lower stamping plate, and then the electric telescopic rod can be started to drive the placement plate to descend, and then the rotating motor can be started to drive the rotating motor to drive the arc rod, so that the arc rod moves the upper cover at the upper end of the lifting cylinder along the arc plate from the first lower stamping plate to the second lower stamping plate, and finally the upper cover is placed on the second lower stamping plate.

[0019] Second aspect A single-step stamping process with precise positioning, using the single-step stamping die with precise positioning, comprises the following steps: S1: placing a circular sheet metal part in a lower punching groove in a first lower punching plate, and supporting the circular sheet metal part by a lower punching block; S2: The upper punching plate is fixed to the output end of the external punching machine, and then the punching machine is controlled to drive the first upper punching plate to descend, and the circular sheet metal part is punched into the air-conditioning compressor upper cover through the cooperation of the upper punching ring groove and the lower punching groove.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: 1. The circular sheet metal parts can be quickly positioned through the stamping groove, eliminating the process of workers repeatedly adjusting the position of the circular sheet metal parts, and the stamping reference point of the stamping machine can be quickly determined, thereby improving the production efficiency of the air-conditioning compressor cover; 2. After the upper cover is punched by the first upper punching plate and the first lower punching plate, it can be moved to the second lower punching plate, and then the upper limit block on the punching plate is lowered to punch the upper cover, so that the lower edge of the upper cover abuts against the inner wall of the trimming ring groove, and under the abutting effect of the trimming ring groove, the lower edge of the upper cover is squeezed out with a chamfer, so that the lower end of the upper cover is more rounded; 3. After the stamping is completed, the lifting cylinder can be controlled to drive the lower stamping block to rise, so that the upper cover is exposed outside the lower stamping groove, making it easier to take the lower cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application; Figure 2 is a schematic structural diagram of an upper punching plate of Example 1 of the present application; Figure 3 is a schematic structural diagram of a lifting cylinder according to Embodiment 1 of the present application; Figure 4 It is a schematic diagram of the overall structure of Example 2 of the present application; Figure 5 is a schematic structural diagram of a mobile cylinder according to Embodiment 2 of the present application; Figure 6 is a schematic structural diagram of the arc rod of Example 2 of the present application; Figure 7 yes Figure 6 Schematic diagram of the enlarged structure of part A.

[0022] Description of the accompanying drawings: 1. upper punching plate; 11. limiting column; 2. first upper punching plate; 21. upper punching ring groove; 22. upper punching block; 23. vent hole; 3. first lower punching plate; 31. lower punching groove; 32. lower punching block; 33. lifting cylinder; 4. second upper punching plate; 41. upper limiting block; 5. second lower punching plate; 51. trimming ring groove; 52. lower limiting block; 6. lower punching plate; 61. limiting sleeve Tube; 7, lifting cylinder; 8, moving cylinder; 9, moving assembly; 91, mounting plate; 92, driving rod; 93, arc plate; 94, first rack; 95, first gear; 96, first bevel gear; 97, second bevel gear; 98, transmission rod; 99, second rack; 910, electric telescopic rod; 911, support plate; 912, arc rod; 913, rotating motor; 914, second gear; 915, placement plate. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1 -Attached Figure 7 This application is described in further detail.

[0024] First aspect Example 1 The present application embodiment discloses a single-process stamping die with precise positioning, referring to Figure 1 , Figure 2 and Figure 3 , including an upper punching plate 1, which is arranged in a rectangular parallelepiped shape. A first upper punching plate 2 is fixedly connected to the lower end of the upper punching plate 1, a lower punching plate 6 is arranged below the upper punching plate 1, the upper punching plate 1 and the lower punching plate 6 are arranged coaxially and the upper punching plate 1 is slidably connected to the lower punching plate 6.

[0025] The first lower punching plate 3 is fixedly connected to the lower punching plate 6, the first upper punching plate 2 and the first lower punching plate 3 are coaxially arranged, an upper punching ring groove 21 is provided on the first upper punching plate 2, an upper punching block 22 is fixedly connected in the upper punching ring groove 21, and a vent hole 23 for exhaust is provided on the lower punching block 32. A lower punching groove 31 is provided on the first lower punching plate 3, a lower punching block 32 is provided and installed at the center of the lower punching groove 31, and the upper punching block 22 and the lower punching block 32 are arranged opposite to each other. The lower punching block 32 is penetrated and slidably connected to the center of the lower punching groove 31. A lifting cylinder 33 for driving the lower punching block 32 to rise or fall is provided in the first lower punching plate 3, and the lifting cylinder 33 is fixedly connected to the lower punching plate 6. The telescopic end of the lifting cylinder 33 is fixedly connected to the lower punching block 32.

[0026] In this way, the circular sheet metal part can be placed in the lower punching groove 31 in the first lower punching plate 3, and the circular sheet metal part can be supported by the lower punching block 32. Then, the punching machine is controlled to drive the first upper punching plate 2 to descend, and the upper punching ring groove 21 cooperates with the lower punching groove 31 to make the circular sheet metal part be punched into the upper cover of the air-conditioning compressor. Then, the lifting cylinder 33 can be started to lift the upper cover and then take it out.

[0027] The lower end of the upper punching plate 1 is fixedly connected to a second upper punching plate 4, and the lower punching plate 6 is fixedly connected to a second lower punching plate 5, and the second upper punching plate 4 is coaxially arranged with the second lower punching plate 5. A trimming ring groove 51 is provided at the upper end of the second lower punching plate 5, and the groove width of the trimming ring groove 51 gradually decreases from top to bottom and is arranged in a V shape. A lower limit block 52 is arranged in the trimming ring groove 51, and the installation method of the lower limit block 52 on the lower punching plate 6 is the same as the installation method of the lower punching block 32 on the lower punching plate 6, and both are installed by a cylinder. An upper limit block 41 is fixedly connected to the second upper punching plate 4, and the upper limit block 41 is coaxially arranged with the lower limit block 52.

[0028] After the upper cover is stamped by the first upper stamping plate 2 and the first lower stamping plate 3, it can be moved to the second lower stamping plate 5, and then the upper stamping plate 1 is controlled to descend, so that the upper limit block 41 descends and the upper cover is stamped, so that the lower end edge of the upper cover abuts against the inner wall of the trimming ring groove 51, and the lower end edge of the upper cover is squeezed out of the chamfer under the abutment of the trimming ring groove 51.

[0029] At the same time, in order to improve the stability of the upper punching plate 1 during the upward and downward movement, two limit posts 11 are fixedly connected to the lower end of the upper punching plate 1, and the limit posts 11 are respectively located on both sides below the upper punching plate 1. A limit sleeve 61 is fixedly connected to the lower punching plate 6, and the limit posts 11 correspond to the limit sleeve 61 one by one. When the upper punching plate 1 slides downward, the limit posts 11 can be slidably inserted in the limit sleeve 61.

[0030] Example 2 The difference from Example 1 is: Figure 4 , Figure 5 and Figure 6 A lifting cylinder 7 for lifting the upper cover is slidably connected in the lower punching groove 31, and the lifting cylinder 7 is coaxially arranged with the first lower punching plate 3. A moving cylinder 8 for driving the lifting cylinder 7 to rise or fall is arranged at the lower end of the lifting cylinder 7. Two moving cylinders 8 are provided and fixedly connected in the first lower punching plate 3, and the telescopic end of the moving cylinder 8 is fixedly connected to the lower end surface of the lifting cylinder 7. Thus, after the stamping of the upper cover is completed, the moving cylinder 8 can be controlled to extend so that the moving cylinder 8 can send the entire upper cover out of the lower punching groove 31.

[0031] A moving assembly 9 for moving the upper cover on the lifting cylinder 7 into the trimming annular groove 51 is provided between the first lower punching plate 3 and the second lower punching plate 5 .

[0032] Reference Figure 5 , Figure 6 and Figure 7 The moving assembly 9 includes a mounting plate 91, which is arranged in a rectangular parallelepiped shape, and a support plate 911 is fixedly connected to the lower end of the mounting plate 91, and the support plate 911 is fixedly connected to the lower punching plate 6. A driving rod 92 is slidably connected to the mounting plate 91, and the driving rod 92 is parallel to the upper end surface of the lower punching plate 6 in the sliding direction of the mounting plate 91.

[0033] The end of the driving rod 92 away from the mounting plate 91 is fixedly connected to an arc plate 93, and the inner arc surface of the arc plate 93 faces one side of the mounting plate 91. The driving rod 92 is fixedly connected to a first rack 94 arranged along the length direction of the driving rod 92, and a first gear 95 is meshed with one side of the first rack 94, and the first gear 95 is rotatably connected to the inside of the mounting plate 91. The upper end of the first gear 95 is fixedly connected to a first bevel gear 96, and the first bevel gear 96 is coaxially arranged with the first gear 95.

[0034] A second bevel gear 97 is meshed on one side below the first bevel gear 96, and a second gear 914 is fixedly connected to the second bevel gear 97, and the second gear 914 is rotatably connected in the mounting plate 91. The second gear 914 is coaxially arranged with the second bevel gear 97, and a transmission rod 98 is fixedly connected to the upper punching plate 1, and the transmission rod 98 is perpendicular to the end surface of the upper punching plate 1.

[0035] A second rack 99 is fixedly connected to the transmission rod 98 . The second rack 99 is arranged along the length direction of the transmission rod 98 . The second rack 99 is meshed with the second gear 914 .

[0036] The lower end of the stamping plate is fixedly connected with an electric telescopic rod 910, the telescopic direction of the electric telescopic rod 910 is perpendicular to the end face of the lower stamping plate 6, and the telescopic end of the electric telescopic rod 910 is fixedly connected with a placement plate 915. The placement plate 915 is set in a rectangular parallelepiped shape and is parallel to the lower end face of the lower stamping plate 6. A rotating motor 913 is installed on the mounting plate 91, and the output shaft of the rotating motor 913 passes through the placement plate 915 and is fixedly connected with an arc rod 912, which is parallel to the upper end face of the lower stamping plate 6.

[0037] The implementation principle of Example 2 is as follows: after the upper punching plate 1 completes the punching of the upper cover, the moving cylinder 8 is started to make the lifting cylinder 7 abut against the lower part of the upper cover, and drive the upper cover to rise to the same height as the arc rod 912. Then the upper punching plate 1 will rise, and at this time the transmission rod 98 will drive the second rack 99 to rise, thereby causing the second gear 914 and the second bevel gear 97 to rotate, thereby causing the second bevel gear 97 to drive the first rack 94 to move, thereby causing the driving rod 92 to slide on the mounting plate 91 toward the side close to the mounting plate 91, thereby causing the driving rod 92 to drive the arc plate 93 to move between the first lower punching plate 3 and the second lower punching plate 5, and finally causing the arc plate 93 to connect the second lower punching plate 5 with the first lower punching plate 3. Then, the electric telescopic rod 910 is started to drive the placement plate 915 downward, and then the rotating motor 913 is started to drive the arc rod 912 to rotate, so that the arc rod 912 abuts against the upper cover. The arc rod 912 moves the upper cover at the upper end of the lifting cylinder 7 along the arc plate 93 from the first lower punching plate 3 to the second lower punching plate 5, and finally places the upper cover on the second lower punching plate 5.

[0038] Second aspect This embodiment also discloses a single-step stamping process with precise positioning, using the single-step stamping die with precise positioning, including the following steps: S1: placing the circular sheet metal part in the lower punching groove 31 in the first lower punching plate 3, and supporting the circular sheet metal part through the lower punching block 32; S2: The upper punching plate 1 is fixed to the output end of the external punching machine, and then the punching machine is controlled to drive the first upper punching plate 2 to descend, and the circular sheet metal part is punched into the air-conditioning compressor upper cover through the cooperation of the upper punching ring groove 21 and the lower punching groove 31.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A single-process stamping die with precise positioning, characterized in that: The invention comprises an upper punching plate (1), the lower end of which is fixedly connected to a first upper punching disc (2), a lower punching plate (6) being provided below the upper punching plate (1), a first lower punching disc (3) being fixedly connected to the lower punching plate (6), the first upper punching disc (2) and the first lower punching disc (3) being coaxially arranged, an upper punching ring groove (21) being provided on the first upper punching disc (2), an upper punching block (22) being fixedly connected inside the upper punching ring groove (21), a lower punching groove (31) being provided on the first lower punching disc (3), and a lower punching block (32) being installed at the center of the lower punching groove (31).

2. The single-step stamping die with precise positioning according to claim 1, characterized in that: The lower punch block (32) is inserted through and slidably connected to the center of the lower punch groove (31); a lifting cylinder (33) for driving the lower punch block (32) to rise or fall is provided in the first lower punch plate (3); a telescopic end of the lifting cylinder (33) is fixedly connected to the lower punch block (32).

3. The single-step stamping die with precise positioning according to claim 1, characterized in that: The lower end of the upper punching plate (1) is fixedly connected to a second upper punching plate (4), the lower punching plate (6) is fixedly connected to a second lower punching plate (5), the second upper punching plate (4) and the second lower punching plate (5) are coaxially arranged, the upper end of the second lower punching plate (5) is provided with a trimming ring groove (51), the groove width of the trimming ring groove (51) gradually decreases from top to bottom, a lower limit block (52) is provided in the trimming ring groove (51), the lower limit block (52) is mounted on the second lower punching plate (5), the second upper punching plate (4) is fixedly connected to an upper limit block (41), the upper limit block (41) and the lower limit block (52) are coaxially arranged.

4. The single-step stamping die with precise positioning according to claim 3, characterized in that: The lower punch block (32) is provided with a vent hole (23).

5. The single-step stamping die with precise positioning according to claim 4, characterized in that: The upper punching plate (1) is fixedly connected to a limiting column (11), and the lower punching plate (6) is fixedly connected to a limiting sleeve (61); the limiting column (11) corresponds to the limiting sleeve (61) one by one, and the limiting column (11) is slidably inserted into the limiting sleeve (61).

6. The single-step stamping die with precise positioning according to claim 5, characterized in that: A lifting cylinder (7) for lifting the upper cover is slidably connected in the lower punching groove (31), and a movable cylinder (8) for driving the lifting cylinder (7) to rise or fall is provided at the lower end of the lifting cylinder (7). A movable component (9) for moving the upper cover on the lifting cylinder (7) to the trimming ring groove (51) is provided between the first lower punching plate (3) and the second lower punching plate (5).

7. The single-step stamping die with precise positioning according to claim 6, characterized in that: The moving assembly (9) comprises a mounting plate (91) fixedly connected to the lower punching plate (6); a driving rod (92) is slidably connected to the mounting plate (91); an arc-shaped plate (93) is fixedly connected to one end of the driving rod (92); the driving rod (92) slides in a direction parallel to the end surface of the lower punching plate (6); a first rack (94) is fixedly connected to the driving rod (92) and is arranged along the length direction of the driving rod (92); a first gear (95) is meshed with one side of the first rack (94). The first bevel gear (96) is fixedly connected to the lower end of the first gear (95), the first bevel gear (96) and the first gear (95) are coaxially arranged, a second bevel gear (97) is meshed with one side of the first bevel gear (96), a second gear (914) is fixedly connected to the second bevel gear (97), the second gear (914) and the second bevel gear (97) are coaxially arranged, a transmission rod (98) is fixedly connected to the upper punching plate (1), and a second gear (914) is fixedly connected to the transmission rod (98). The rack (99) is arranged along the length direction of the transmission rod (98), and the second rack (99) is meshed with the second gear (914). When the transmission rod (98) descends along with the upper punching plate (1), the driving rod (92) drives the arc plate (93) to move between the first lower punching plate (3) and the second lower punching plate (5), and finally causes the arc plate (93) to connect the second lower punching plate (5) and the first lower punching plate (3). The lower end of the upper punching plate (1) is fixedly connected to an electric telescopic rod (910), the telescopic end of the electric telescopic rod (910) is fixedly connected to a placement plate (915), a rotating motor (913) is mounted on the mounting plate (91), an output shaft of the rotating motor (913) passes through the placement plate (915) and is fixedly connected to an arc rod (912), and the arc rod (912) is used to move the upper cover along the arc plate (93) from the first lower punching plate (3) to the second lower punching plate (5).

8. A single-step stamping process with precise positioning, characterized in that: According to the single-step stamping die with accurate positioning as claimed in claim 1, the following steps are included: S1: placing a circular sheet metal part in a lower punching groove (31) in a first lower punching plate (3), and supporting the circular sheet metal part by a lower punching block (32); S2: fixing the upper punching plate (1) to the output end of an external punching machine, then controlling the punching machine so that the punching machine drives the first upper punching plate (2) to descend, and the upper punching ring groove (21) cooperates with the lower punching groove (31) so that the circular sheet metal part is punched into an air-conditioning compressor upper cover.

Images