Stamping device for compressor shell

Abstract

The invention relates to the technical field of stamping equipment, and particularly discloses a stamping device for a compressor shell, which comprises a fixed seat, a stamping head, a material placing table and a stamping die, the stamping die is provided with a die cavity, the stamping head is fixed on the fixed seat, and the material placing table is elastically, vertically and movably connected to the fixed seat; a containing groove used for containing a metal plate to be stamped is formed in the bottom of the die cavity, and a positioning module is further arranged on the stamping die. And a plurality of mounting cavities which are uniformly distributed at intervals in the circumferential direction of the die cavity are formed in the lower surface of the stamping die. The metal plate stamping device has the beneficial effects that in the stamping process, the clamping piece abuts against the outer side of a metal plate all the time, the metal plate is prevented from deviating in the stamping process, after stamping is completed, the stamping die rises, the guide block enters the vertical section, the pushing spring is released, the pushing protruding block enters the limiting groove, and the guide block moves downwards along the vertical section; in the downward moving process of the bearing block, the formed workpiece can be driven to move downwards, and the formed workpiece is helped to be separated from the mold cavity.

Description

Technical Field

[0001] The invention relates to the technical field of stamping equipment, and in particular to a stamping device for a compressor housing. Background Art

[0002] An air compressor is a device used to compress gas. It is usually the main body of an air source device. It is a device that converts the mechanical energy of a prime mover (usually an electric motor) into gas pressure energy. It is a device that generates air pressure for compressed air. Air compressors are similar in structure to water pumps. Most air compressors are reciprocating piston type, with rotating blades or rotating screws. Common compressors are mostly composed of oil circulation system, gas circulation system, water circulation system and power distribution system. During the production process, the above components need to be installed in a metal casing. The casing is generally welded by a shell body and a tail cover, in which the tail cover is stamped from a round iron sheet (plate).

[0003] The Chinese patent with the authorization announcement number CN215391870U discloses a fixing device for processing and positioning a compressor housing. The patent includes a stamping seat, the top surface of which is provided with a longitudinal groove, the number of which is three, and the three longitudinal grooves are distributed in an annular manner and equidistantly along the stamping seat, and both sides of the inner wall of the longitudinal groove are provided with horizontal lag grooves, and the inside of the horizontal lag groove is slidably clamped with a U-shaped frame, and the side arms on both sides of the U-shaped frame are respectively slidably clamped in the horizontal lag grooves on the corresponding sides. The device can use the tooth ends of the rotating sprocket disc surface to clamp on the iron sheet surface, effectively avoiding the displacement of the iron sheet caused by the vibration of the machine, ensuring the accuracy of the stamping, and can control the sprocket disc to perform an internal gathering action, thereby automatically pushing the iron sheet on the surface of the stamping seat to the middle of the stamping seat, without the user having to specifically control the placement position of the iron sheet, and the operation is simpler and faster, ensuring the quality and efficiency of stamping.

[0004] The existing shell stamping device is unable to position the metal plate throughout the stamping process, which can easily cause the raw material to shift during the stamping process, resulting in the stamped workpiece failing to meet the standard and affecting the accuracy of the workpiece. In addition, the workpiece may get stuck in the die after stamping. When the stamping die is lifted, the stamped workpiece cannot automatically fall out of the stamping die, and workers are required to take out the workpiece, reducing work efficiency. Summary of the invention

[0005] The present invention provides a stamping device for a compressor casing, aiming to solve the technical problem that the existing casing stamping device in the related technology is unable to position the metal plate throughout the entire process of stamping the metal plate, which easily causes the raw material to shift during the stamping process, resulting in the stamped workpiece failing to meet the standard, affecting the accuracy of the workpiece, and the workpiece after stamping may be stuck in the mold, requiring workers to take out the workpiece, reducing work efficiency.

[0006] A stamping device for a compressor casing of the present invention comprises: a fixed seat, a stamping head, a discharge platform and a stamping die, the stamping die is provided with a die cavity, the stamping head is fixed on the fixed seat, and the discharge platform is elastically connected to the fixed seat for vertical movement; a receiving groove for receiving a metal plate to be stamped is provided at the bottom of the die cavity, and a positioning module is also provided on the stamping die; a plurality of mounting cavities evenly spaced along the circumference of the die cavity are provided on the lower surface of the stamping die, each mounting cavity extends along the radial direction of the die cavity, and each mounting cavity is communicated with the receiving groove; the number of the positioning modules is the same as the mounting cavities, and each positioning module is arranged in each mounting cavity in a one-to-one correspondence; the positioning module comprises a transmission assembly and a clamping member, and the transmission assembly has a power input end and a power output end The output end is connected to the transmission member, the power input end is elastically slidably connected to the transmission member along the vertical direction, the power output end is elastically slidably connected to the power input end along the radial direction of the mold cavity, the power input end extends from the inside of the installation cavity toward the discharge table to the outside of the installation cavity, the clamping member is arranged at the power output end, the clamping member is used to push the metal plate to move toward the center of the mold cavity, and the clamping members are evenly spaced and distributed on the circumference of the mold cavity. In the process of the stamping die moving close to the stamping head, the upper surface of the discharge table can synchronously press the power input ends into the installation cavity to realize the input of driving force. At the same time, the power output ends can synchronously drive the clamping members to move in the radial direction of the mold cavity and toward the center of the mold cavity in the installation cavity, so as to push the metal plate to a position coaxial with the mold cavity.

[0007] Beneficial effect: During the process of the positioning frame moving inward, multiple positioning frames will abut against the outer wall of the metal plate until the guide block reaches the highest point of the inclined section. At this time, the bottom of the positioning frame will be flush with the bottom of the stamping die, and the bottom of the stamping die will abut against the discharge table, and the metal plate will enter the inner side of the receiving groove. Multiple clamps abut against the outer wall of the metal plate at the same time to complete the clamping and positioning of the metal plate. The stamping die will drive the discharge table to descend together, the punch head will pass through the through hole at the center of the discharge table upward, and then push the metal plate upward to squeeze the metal plate into the upper mold cavity. The metal plate will be formed on the inner wall of the mold cavity. During the stamping process, the clamps always abut against the outside of the metal plate to avoid the metal plate from shifting during the stamping process, thereby ensuring the quality of the stamping. After the stamping is completed, the stamping die begins to rise, and the discharge table will rise with the stamping die at the same time until the discharge table rises to the initial position. As the stamping die continues to rise, the bottom of the positioning frame is no longer restricted by the discharge table, and the tension spring begins to release. When the guide block reaches the highest point of the inclined section, the guide block enters the vertical section, the push spring is released, the push protrusion enters the limit groove, and the guide block moves downward along the vertical section. At this time, due to the elastic force of the clamping spring, the clamping part is still tightly clamped on the outside of the formed workpiece, so the tension spring is released, so that the support block moves downward, which will drive the formed workpiece to move downward, help the formed workpiece to leave the mold cavity, complete the forming of the metal plate and help the formed workpiece to leave the mold cavity.

[0008] Preferably, the power input end is a supporting block installed on the stamping die, and the power output end is a positioning frame elastically slidably connected to the supporting block along the radial direction of the mold cavity. The transmission part includes a sliding block elastically and horizontally slidably connected to the mounting cavity. A hollow connecting cylinder is fixedly provided at the bottom of the sliding block. The supporting block is slidably fitted on the outside of the connecting cylinder. A tension spring is provided inside the connecting cylinder. One end of the tension spring is connected to the connecting cylinder, and the other end is connected to the supporting block. A guide block is provided on the supporting block. A protrusion is elastically and slidably connected to the guide block along its axial direction. It also includes a guide groove provided on the mounting cavity. The guide block is used to cooperate with the groove wall on one side of the guide groove to guide the supporting block.

[0009] The effect is: the bearing block is driven to move on the positioning frame through the transmission part, so that in the process of the stamping die moving close to the stamping head, the upper surface of the discharge table can synchronously press each power input end into the installation cavity to realize the input of driving force, and at the same time, each power output end can synchronously drive each clamping part to move in the installation cavity along the radial direction of the mold cavity and toward the center of the mold cavity, so as to push the metal plate to a position coaxial with the mold cavity.

[0010] Preferably, the guide groove has an inclined section, a vertical section and a horizontal section which are interconnected. The inclined section slopes downward from the side close to the mold cavity to the side away from the mold cavity. A limiting groove is provided in the vertical section, and a connecting groove is provided in the horizontal section. The depth of the connecting groove gradually increases toward the vertical section and is connected with the limiting groove. The protrusion is used to cooperate with the groove wall on one side of the limiting groove to guide the bearing block.

[0011] The effect is that the guide groove can guide the movement of the bearing block.

[0012] Preferably, one end of the bottom of the connecting groove is flush with the bottom of the limiting groove, and the other end is flush with the bottom of the horizontal section, so that the protrusion transitions from the limiting groove to the horizontal section.

[0013] The effect is that the projection can smoothly transition from the limiting groove to the horizontal section, thereby completing the resetting of the guide block.

[0014] Preferably, a sliding rod is horizontally arranged on the positioning frame, the sliding rod is slidably matched with the supporting block, and a clamping spring is sleeved on the outer side of the sliding rod, one end of the clamping spring is connected to the supporting block, and the other end is connected to the positioning frame, and the clamping spring can be extended and retracted along the radial direction of the mold cavity.

[0015] Preferably, the clamping member is a clamping wheel rotatably mounted on the end of the positioning frame, and the rotation axis of the clamping wheel extends in the vertical direction.

[0016] Preferably, a fixed frame is horizontally slidably installed on the sliding block, a vertically arranged guide rod is fixedly installed on the fixed frame, and a vertically arranged rack is also fixedly installed on the fixed frame, a vertical plate is fixedly installed on the positioning frame, and the vertical plate and the guide rod slide up and down in cooperation, a driving gear is rotatably installed on the inner side of the vertical plate, and the driving gear and the rack are correspondingly arranged up and down, a first transmission gear connected to the driving gear is also rotatably installed on the vertical plate, and a second transmission gear connected to the clamping member is rotatably installed on the positioning frame, and the first transmission gear and the second transmission gear cooperate in transmission.

[0017] The effect is that when the stamping is completed, the positioning frame and the vertical plate will move downward during the downward movement of the supporting block, the driving gear will rotate, driving the clamping part to rotate, and the clamping part will give the formed workpiece a force to rotate around its own axis, which can help the workpiece to better escape from the mold cavity.

[0018] Preferably, the guide groove is a right-angled triangle structure.

[0019] Preferably, a pillar is fixedly mounted on the fixing seat, a top plate is fixedly arranged on the upper end of the pillar, and the stamping die and the top plate are slidably matched in the vertical direction.

[0020] Preferably, a vertically arranged sliding column is fixed on the fixed seat, and the sliding column passes through the unloading table and slides with it so that the unloading table slides up and down along the sliding column. A spring is sleeved on the outer side of the sliding column, one end of the spring is connected to the fixed seat, and the other end is connected to the unloading table.

[0021] The effect is that the unloading table slides down along the slide column to the bottom to complete the stamping of the metal plate, and the spring can help the unloading table to lift and reset.

[0022] By adopting the above technical solution, the beneficial effects of the present invention are as follows: during the process of the positioning frame moving inward, the positioning frame will abut against the outer wall of the metal plate until the guide block reaches the highest point of the inclined section. At this time, the bottom of the positioning frame will be flush with the bottom of the stamping die, and the bottom of the stamping die will abut against the discharge table, and the metal plate will enter the inner side of the receiving groove. Multiple clamps abut against the outer wall of the metal plate at the same time to complete the clamping and positioning of the metal plate. The stamping die will drive the discharge table to descend together, the punch head will pass through the through hole at the center of the discharge table upward, and then push the metal plate upward to squeeze the metal plate into the mold cavity above. The metal plate will be formed on the inner wall of the mold cavity. During the stamping process, the clamps will always abut against the outer side of the metal plate to avoid the metal plate from shifting during the stamping process, thereby ensuring the quality of the stamping. After the stamping is completed, the stamping die begins to rise, and the discharge table will simultaneously rise with the stamping die until the discharge table rises to the initial position. As the stamping die continues to rise, the bottom of the positioning frame is no longer restricted by the unloading table, and the tension spring begins to release. When the guide block reaches the highest point of the inclined section, the guide block enters the vertical section, the push spring is released, and the push protrusion enters the limit groove. The guide block moves downward along the vertical section. At this time, due to the elastic force of the clamping spring, the clamping piece is still tightly clamped on the outside of the formed workpiece, so the tension spring is released, so that the bearing block moves downward, which will drive the formed workpiece to move downward, helping the formed workpiece to leave the mold cavity, and finally the bearing block returns to the initial position. The forming of the metal plate is completed while helping the formed workpiece to leave the mold cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a cross-sectional view of the present invention.

[0025] Figure 3 It is a top view of the stamping die of the present invention.

[0026] Figure 4 It is a front view of the stamping die of the present invention.

[0027] Figure 5 It is an axonometric cross-sectional view of the stamping die of the present invention.

[0028] Figure 6 It is a schematic diagram of the guide groove of the present invention.

[0029] Figure 7 It is a schematic structural diagram of the bearing block of the present invention.

[0030] Figure 8 It is an exploded schematic diagram of the bearing block, the fixing frame and the positioning frame of the present invention.

[0031] Fig. 9 It is a cross-sectional view of the bearing block of the present invention.

[0032] Fig.10 It is a schematic diagram of the metal plate after stamping forming of the present invention.

[0033] Reference numerals: 10. Fixed seat; 11. Pillar; 12. Top plate; 20. Sliding column; 21. Unloading table; 30. Connecting rod; 31. Stamping die; 32. Die cavity; 33. Accommodating groove; 34. Stamping head; 40. Mounting cavity; 41. Sliding groove; 42. Guide groove; 421. Inclined section; 422. Vertical section; 423. Horizontal section; 424. Limiting groove; 425. Connecting groove; 50. Sliding block; 51. Reset spring; 52. Connecting cylinder; 53. Bearing block; 54. Tension spring; 55. Guide block; 56. Bump; 57. Push spring; 60. Positioning frame; 61. Sliding rod; 62. Clamping spring; 63. Clamping piece; 70. Fixed frame; 71. Guide rod; 72. Rack; 73. Vertical plate; 74. Driving gear; 75. First transmission gear; 76. Second transmission gear. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] like Figures 1 to 10 As shown, a specific embodiment of a stamping device for a compressor casing of the present invention includes a fixing module, a material discharge module, a stamping module, a positioning module and a material transfer module.

[0036] like Figure 1 As shown, the fixing module includes a fixing base 10, a support 11 and a top plate 12. The fixing base 10 and the top plate 12 are both square structures. The support 11 is vertically fixed on the upper surface of the fixing base 10, and there are four support 11, which are arranged at the four corners of the fixing base 10. The top plate 12 is fixedly installed on the upper end of the support 11.

[0037] The material discharge module includes four slide posts 20 fixedly mounted on the fixed seat 10. The slide posts 20 are arranged vertically and are close to the four corners of the fixed seat 10. The material discharge table 21 is used to place the metal plate to be processed, and a through hole is opened at the center of the material discharge table 21. The four slide posts 20 all penetrate the material discharge table 21, and the slide posts 20 and the material discharge table 21 are slidably matched, so that the material discharge table 21 can slide up and down on the slide posts 20.

[0038] A spring is sleeved on the outside of the slide column 20, one end of the spring is connected to the fixed seat 10, and the other end is connected to the bottom of the discharge platform 21, so that when the discharge platform 21 slides downward along the slide column 20, the spring will be compressed, and when the spring is released, it can drive the discharge platform 21 to rise and reset.

[0039] In this embodiment, the metal plate is a circular structure. The metal plate is placed on the upper surface of the unloading table 21. The positioning module can position it, and the stamping module completes the stamping of the metal plate.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, the punching module includes a punching head 34 fixedly mounted on the upper surface of the fixing seat 10, the punching head 34 is vertically arranged, and the punching head 34 corresponds to the through hole at the center of the unloading platform 21. The upper end of the punching head 34 is a shape matching the formed workpiece.

[0041] A connecting rod 30 is vertically slidably installed on the top plate 12, a stamping die 31 is fixedly installed on the lower end of the connecting rod 30, a cylinder (not shown in the figure) is provided on the connecting rod 30, and the connecting rod 30 is fixedly connected to the telescopic part of the cylinder, so that the connecting rod 30 and the stamping die 31 can be driven to rise and fall through the cylinder.

[0042] A circular receiving groove 33 is provided at the bottom of the stamping die 31, and the diameter of the receiving groove 33 is larger than the diameter of the metal plate. Therefore, when the stamping die 31 is lowered to the upper surface of the unloading platform 21, the metal plate is just located inside the receiving groove 33. The positioning module is arranged on the stamping die 31, and the stamping die 31 can position the metal plate.

[0043] A mold cavity 32 that is recessed upward is disposed at the center of the receiving groove 33 , and the mold cavity 32 corresponds in shape and position to the punch head 34 below.

[0044] The stamping die 31 will first descend to the upper surface of the discharge table 21. At this time, the bottom of the stamping die 31 will abut against the upper surface of the discharge table 21, and the metal plate will be located in the receiving groove 33. Then the stamping die 31 will continue to descend for stamping, and the stamping die 31 will drive the discharge table 21 to descend together. The discharge table 21 will slide downward along the slide column 20, and the spring will be compressed. The punch head 34 will pass through the through hole at the center of the discharge table 21 upward, and then push the metal plate upward to squeeze the metal plate into the upper mold cavity 32. The metal plate will be formed on the inner wall of the mold cavity 32, and the metal plate will be stamped into the shape of the compressor shell, completing the stamping of the metal plate.

[0045] like Figures 3 to 9 As shown, a plurality of mounting cavities 40 are provided on the lower surface of the stamping die 31 and are evenly spaced along the circumference of the die cavity 32. Each mounting cavity 40 extends along the radial direction of the die cavity 32, and each mounting cavity 40 is connected to the receiving groove 33 (as shown in FIG. Figure 3 and Figure 5 In this embodiment, the number of the mounting cavities 40 is 4. In other embodiments, the number of the mounting cavities 40 may be 6, 8 or even more.

[0046] The number of positioning modules is the same as that of the mounting cavities 40, and each positioning module is arranged in each mounting cavity 40 in a one-to-one correspondence. The positioning module includes a transmission assembly and a clamping member 63. The transmission assembly has a power input end, a power output end and a transmission member. The power input end is elastically slidably connected to the transmission member in the vertical direction. The power input end extends from the inside of the mounting cavity 40 toward the discharge table 21 to the outside of the mounting cavity 40. The power output end is elastically slidably connected to the power input end along the radial direction of the mold cavity 32. The clamping member 63 is arranged at the power output end, which is used to push the metal plate toward the center of the mold cavity 32. The clamping parts 63 of each positioning module are evenly spaced and distributed in the circumferential direction of the mold cavity 32. In the process of the stamping die 31 moving toward the discharge table 21, the upper surface of the discharge table 21 can synchronously press the power input end of each positioning module into the installation cavity 40 to realize the input of driving force. At the same time, each power output end can synchronously drive each clamping part 63 to move in the installation cavity 40 along the radial direction of the mold cavity 32 and toward the center of the mold cavity 32, thereby pushing the metal plate to a coaxial position with the mold cavity 32 and clamping the metal plate.

[0047] Specifically, the power input end is a bearing block 53 mounted on the stamping die 31, and the power output end is a positioning frame 60 elastically slidably connected to the bearing block 53 along the radial direction of the die cavity 32. The transmission member includes a sliding block 50, a return spring 51, a connecting tube 52, a tension spring 54, a guide block 55, a protrusion 56 and a guide groove 42.

[0048] In each installation cavity 40 , two opposite surfaces along the mold cavity 32 on the installation cavity 40 are provided with a slide groove 41 and a guide groove 42 . The slide groove 41 is located above the guide groove 42 , and the slide groove 41 is arranged horizontally.

[0049] like Figure 5 As shown, in this embodiment, the guide groove 42 is a right triangle structure, and the guide groove 42 has an inclined section 421, a vertical section 422 and a horizontal section 423, and the inclined section 421, the vertical section 422 and the horizontal section 423 are all connected to each other. The inclined section 421 gradually tilts downward from the side close to the mold cavity 32 to the side away from the mold cavity 32. The upper end of the vertical section 422 is connected to the end of the inclined section 421 at a high position, one end of the horizontal section 423 is connected to the end of the inclined section 421 at a low position, and the other end of the horizontal section 423 is connected to the lower end of the vertical section 422.

[0050] A limiting groove 424 is opened on the surface tangentially upward along the mold cavity 32 in the vertical section 422, and a connecting groove 425 is opened on the surface tangentially upward along the mold cavity 32 in the horizontal section 423. The connecting groove 425 is inclined, that is, the depth of the connecting groove 425 gradually increases toward the vertical section 422, and the end of the connecting groove 425 with the largest depth is connected to the lower end of the limiting groove 424. One end of the bottom of the connecting groove 425 is flush with the bottom of the limiting groove 424, and the other end is flush with the bottom of the horizontal section 423, so that the limiting groove 424 can smoothly transition to the horizontal section 423.

[0051] A sliding block 50 is slidably installed in the slide groove 41, and the two sides of the sliding block 50 are respectively slidably fitted in the slide grooves 41 on the opposite sides, so that the sliding block 50 can slide horizontally along the slide groove 41. A return spring 51 is arranged on the sliding block 50, one end of the return spring 51 is connected to the sliding block 50, and the other end of the return spring 51 is connected to the inner wall of the installation cavity 40, and the return spring 51 can help the sliding block 50 to return to its original position after moving.

[0052] A hollow connecting cylinder 52 is fixedly mounted at the bottom of the sliding block 50, a bearing block 53 is slidably mounted on the outside of the connecting cylinder 52 along its axial direction, and a cylindrical groove for accommodating the connecting cylinder 52 is provided inside the bearing block 53. When the bearing block 53 slides along the axial direction of the connecting cylinder 52, the connecting cylinder 52 can enter the inside of the bearing block 53. A tension spring 54 is arranged inside the connecting cylinder 52, one end of the tension spring 54 is connected to the bearing block 53, and the other end of the tension spring 54 is connected to the connecting cylinder 52.

[0053] Guide blocks 55 are fixedly installed on the sides of the supporting block 53 opposite to the guide grooves 42 on both sides. The guide blocks 55 are cylindrical in structure. The guide blocks 55 on both sides are respectively located in the corresponding guide grooves 42. In the initial state, the guide blocks 55 are located at the lower end of the inclined section 421.

[0054] A protrusion 56 is installed inside the guide block 55 so as to slide along the axial direction thereof, and a push spring 57 is installed between the protrusion 56 and the guide block 55, one end of the push spring 57 is connected to the protrusion 56, and the other end of the push spring 57 is connected to the guide block 55. When the guide block 55 is located in the inclined section 421 of the guide groove 42, the protrusion 56 is always received inside the guide block 55, and at this time, the protrusion 56 is flush with the end of the guide block 55.

[0055] The lower end of the bearing block 53 extends to the bottom of the punching die 31. A positioning frame 60 is horizontally slidably installed near the bottom of the bearing block 53. In the initial state, the positioning frame 60 is located below the punching die 31. The lower end surface of the positioning frame 60 is flush with the lower end surface of the bearing block 53. A sliding rod 61 is horizontally arranged inside the positioning frame 60. The sliding rod 61 is slidably matched with the bearing block 53, and a clamping spring 62 is sleeved on the outer side of the sliding rod 61. One end of the clamping spring 62 is connected to the bearing block 53, and the other end of the clamping spring 62 is connected to the positioning frame 60.

[0056] like Figure 7 A clamping member 63 is installed at one end of the positioning frame 60 close to the mold cavity 32. In this embodiment, the clamping member 63 is a clamping wheel rotatably installed at the end of the positioning frame 60. The axis of the clamping wheel is arranged vertically, and the material of the clamping wheel can be rubber or metal. In other modified embodiments, the structure of the clamping member 63 is not limited to this, and can be fixedly installed on the positioning frame 60, and the shape can be arc, round, square or other shapes.

[0057] After placing the metal plate on the unloading platform 21, the stamping die 31 starts to descend. When the stamping die 31 approaches the unloading platform 21, the bottom of the positioning frame 60 will first contact the upper surface of the unloading platform 21. As the stamping die 31 continues to descend, the unloading platform 21 will not be pressed down because the spring force on the outside of the slide column 20 is relatively large. Therefore, the positioning frame 60 is subjected to an upward thrust, which will force the positioning frame 60 and the bearing block 53 to move upward. When the bearing block 53 rises, the guide block 55 will move from the lowest point to the highest point along the inclined section 421 on the guide groove 42, so that the bearing block 53 will move upward while moving toward the center of the mold cavity 32. As the bearing block 53 moves, the connecting tube 52 will gradually enter the inner side of the bearing block 53, the tension spring 54 will be compressed, and the bearing block 53 will simultaneously drive the sliding block 50 and the positioning frame 60 to move toward the center direction of the mold cavity 32, and the return spring 51 on the sliding block 50 will be compressed. When the positioning frame 60 moves inward, multiple positioning frames 60 in the circumferential direction begin to abut against the outer wall of the metal plate, and then the positioning frame 60 will slide horizontally on the bearing block 53, and the clamping spring 62 will gradually be compressed until the guide block 55 reaches the highest point of the inclined section 421. At this time, the bottom of the positioning frame 60 will be flush with the bottom of the stamping die 31, and the bottom of the stamping die 31 will abut against the discharge table 21, and the metal plate will enter the inner side of the receiving groove 33. At this time, the positioning frame 60 and the clamping spring 62 no longer move, and multiple clamping members 63 abut against the outer wall of the metal plate at the same time, completing the clamping and positioning of the metal plate.

[0058] Then the stamping die 31 will continue to descend for stamping, and the stamping die 31 will drive the discharge platform 21 to descend together. The discharge platform 21 will slide downward along the slide column 20, and the spring will be compressed. The punch head 34 will pass upward through the through hole at the center of the discharge platform 21, and then push the metal plate upward to squeeze the metal plate into the upper mold cavity 32. The metal plate will be formed on the inner wall of the mold cavity 32, and the metal plate will be stamped into the shape of the compressor shell, completing the stamping of the metal plate. In the process of stamping the metal plate, the multiple clamping members 63 arranged circumferentially always abut against the outer side of the metal plate to prevent the metal plate from shifting during the stamping process, thereby ensuring the quality of the stamping.

[0059] After the stamping is completed, the stamping die 31 begins to rise, and the discharge platform 21 will rise with the stamping die 31 at the same time, until the discharge platform 21 is raised to the initial position. As the stamping die 31 continues to rise, the bottom of the positioning frame 60 is no longer restricted by the discharge platform 21, and the tension spring 54 begins to release. When the guide block 55 reaches the highest point of the inclined section 421, the guide block 55 also enters the vertical section 422, the push spring 57 is released, and the push protrusion 56 enters the limit groove 424, so the guide block 55 can only move downward along the vertical section 422. At this time, due to the elastic force of the clamping spring 62, the clamping member 63 is still tightly clamped on the outside of the formed workpiece, so the tension spring 54 is released, so that the bearing block 53 moves downward, which will drive the formed workpiece to move downward, helping the formed workpiece to escape from the mold cavity 32, until the guide block 55 drops to the lower end of the vertical section 422. At this time, the guide block 55 has reached the end of the horizontal section 423, and the elastic forces of the return spring 51 and the clamping spring 62 are released at the same time, so that the guide block 55 moves along the horizontal section 423 toward the side away from the die cavity 32, and the protrusion 56 just enters the horizontal section 423 along the connecting groove 425, and the protrusion 56 is squeezed into the guide block 55 again. After the return spring 51 is released, the bearing block 53 finally returns to the initial position, completing the forming of the metal plate and helping the formed workpiece to separate from the die cavity 32.

[0060] In order to better separate the formed workpiece from the mold cavity 32, the present invention also provides another embodiment, which is achieved by a material transfer module.

[0061] It is particularly noted that, in this embodiment, the clamping member 63 is a clamping wheel rotatably mounted on the end of the positioning frame 60 .

[0062] like Figure 7 and Figure 8 As shown, the material transfer module includes a fixed frame 70 horizontally slidably mounted on the sliding block 50, a vertically arranged guide rod 71 is fixedly mounted on the fixed frame 70, and a rack 72 is also fixedly mounted on the fixed frame 70, and the rack 72 is also vertically arranged.

[0063] A vertically arranged upright plate 73 is fixedly mounted on the positioning frame 60 , and the upright plate 73 and the guide rod 71 are slidably matched with each other up and down.

[0064] A driving gear 74 is rotatably mounted on the inner side of the vertical plate 73, and the driving gear 74 and the rack 72 are arranged in a vertically corresponding position. A first transmission gear 75 connected to the driving gear 74 is rotatably mounted on the outer surface of the vertical plate 73, and a second transmission gear 76 fixedly connected to the clamping wheel is rotatably mounted on the positioning frame 60. In this embodiment, the first transmission gear 75 and the second transmission gear 76 are both bevel gears, and the two are matched in transmission.

[0065] When stamping, the bearing block 53 drives the positioning frame 60 to rise, and the vertical plate 73 will slide upward along the guide rod 71. When the positioning frame 60 slides horizontally on the bearing block 53, the fixing frame 70 will slide horizontally on the sliding block 50 at the same time. During the rising process of the vertical plate 73, when the driving gear 74 gradually approaches the upper side, the driving gear 74 will mesh with the rack 72, thereby driving the clamping member 63 to rotate through the first transmission gear 75 and the second transmission gear 76, which will not affect the metal plate in the stamping process.

[0066] When the stamping is completed, during the downward movement of the supporting block 53, the positioning frame 60 and the vertical plate 73 will move downward, and the driving gear 74 will rotate, driving the clamping member 63 to rotate. The clamping member 63 will give the formed workpiece a force to rotate around its own axis. In layman's terms, while the clamping member 63 pulls the workpiece downward, it also gives the workpiece a rotational force, which can help the workpiece to better escape from the mold cavity 32.

[0067] The working principle of the present invention is as follows: after placing the metal plate on the discharge platform 21, the stamping die 31 begins to descend. When the stamping die 31 approaches the discharge platform 21, the bottom of the positioning frame 60 will first contact the upper surface of the discharge platform 21. As the stamping die 31 continues to descend, the discharge platform 21 will not be pressed down because the spring force on the outside of the slide column 20 is relatively large. Therefore, the positioning frame 60 is subjected to an upward thrust, which will force the positioning frame 60 and the bearing block 53 to move upward. When the bearing block 53 rises, the guide block 55 will move from the lowest point to the highest point along the inclined section 421 on the guide groove 42, so that the bearing block 53 will move upward while moving toward the center of the mold cavity 32. As the bearing block 53 moves, the connecting tube 52 gradually enters the inner side of the bearing block 53, the tension spring 54 is compressed, and the bearing block 53 drives the sliding block 50 and the positioning frame 60 to move toward the center of the mold cavity 32 at the same time. The return spring 51 on the sliding block 50 is compressed. When the positioning frame 60 moves inward, multiple positioning frames 60 in the circumferential direction begin to abut against the outer wall of the metal plate, and then the positioning frame 60 slides horizontally on the bearing block 53, and the clamping spring 62 is gradually compressed. Until the guide block 55 reaches the highest point of the inclined section 421, the bottom of the positioning frame 60 will be flush with the bottom of the stamping die 31, the bottom of the stamping die 31 abuts against the discharge table 21, and the metal plate will enter the inner side of the receiving groove 33. At this time, the positioning frame 60 and the clamping spring 62 no longer move, and multiple clamping members 63 abut against the outer wall of the metal plate at the same time, completing the clamping and positioning of the metal plate.

[0068] Then the stamping die 31 will continue to descend for stamping, and the stamping die 31 will drive the discharge platform 21 to descend together. The discharge platform 21 will slide downward along the slide column 20, and the spring will be compressed. The punch head 34 will pass upward through the through hole at the center of the discharge platform 21, and then push the metal plate upward to squeeze the metal plate into the upper mold cavity 32. The metal plate will be formed on the inner wall of the mold cavity 32, and the metal plate will be stamped into the shape of the compressor shell, completing the stamping of the metal plate. In the process of stamping the metal plate, the multiple clamping members 63 arranged circumferentially always abut against the outer side of the metal plate to prevent the metal plate from shifting during the stamping process, thereby ensuring the quality of the stamping.

[0069] After the stamping is completed, the stamping die 31 begins to rise, and the discharge platform 21 will rise with the stamping die 31 at the same time, until the discharge platform 21 is raised to the initial position. As the stamping die 31 continues to rise, the bottom of the positioning frame 60 is no longer restricted by the discharge platform 21, and the tension spring 54 begins to release. When the guide block 55 reaches the highest point of the inclined section 421, the guide block 55 also enters the vertical section 422, the push spring 57 is released, and the push protrusion 56 enters the limit groove 424, so the guide block 55 can only move downward along the vertical section 422. At this time, due to the elastic force of the clamping spring 62, the clamping member 63 is still tightly clamped on the outside of the formed workpiece, so the tension spring 54 is released, so that the bearing block 53 moves downward, which will drive the formed workpiece to move downward, helping the formed workpiece to escape from the mold cavity 32, until the guide block 55 drops to the lower end of the vertical section 422. At this time, the guide block 55 has reached the end of the horizontal section 423, and the elastic forces of the return spring 51 and the clamping spring 62 are released at the same time, so that the guide block 55 moves along the horizontal section 423 toward the side away from the die cavity 32, and the protrusion 56 just enters the horizontal section 423 along the connecting groove 425, and the protrusion 56 is squeezed into the guide block 55 again. After the return spring 51 is released, the bearing block 53 finally returns to the initial position, completing the forming of the metal plate and helping the formed workpiece to separate from the die cavity 32.

[0070] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A stamping device for a compressor housing, comprising: A fixed seat, a punching head, a discharge table and a punching die, the punching die has a die cavity, the punching head is fixed on the fixed seat, and the discharge table is elastically connected to the fixed seat for vertical movement; it is characterized in that a receiving groove for receiving the metal plate to be punched is provided at the bottom of the die cavity, and a positioning module is also provided on the punching die; A plurality of mounting cavities evenly spaced and distributed along the circumference of the die cavity are provided on the lower surface of the stamping die, each mounting cavity extends along the radial direction of the die cavity, and each mounting cavity is connected to the receiving groove; the number of the positioning modules is the same as the mounting cavities, and each positioning module is arranged in each mounting cavity in a one-to-one correspondence; The positioning module includes a transmission component and a clamping member. The transmission component has a power input end, a power output end and a transmission member. The power input end is elastically slidably connected to the transmission member along the vertical direction, and the power output end is elastically slidably connected to the power input end along the radial direction of the mold cavity. The power input end extends from the inside of the installation cavity toward the discharge table to the outside of the installation cavity. The clamping member is arranged at the power output end. The clamping member is used to push the metal plate toward the center of the mold cavity. The clamping members are evenly spaced and distributed in the circumferential direction of the mold cavity. In the process of the stamping die moving close to the stamping head, the upper surface of the discharge table can synchronously press the power input ends into the installation cavity to realize the input of driving force. At the same time, the power output ends can synchronously drive the clamping members to move in the installation cavity along the radial direction of the mold cavity and toward the center of the mold cavity, so as to push the metal plate to a position coaxial with the mold cavity.

2. A stamping device for a compressor housing according to claim 1, characterized in that: The power input end is a bearing block installed on the stamping die, and the power output end is a positioning frame elastically slidably connected to the bearing block along the radial direction of the die cavity. The transmission part includes a sliding block elastically and horizontally slidably connected to the installation cavity. A hollow connecting cylinder is fixedly provided at the bottom of the sliding block. The bearing block is slidably fitted on the outside of the connecting cylinder. A tension spring is provided inside the connecting cylinder. One end of the tension spring is connected to the connecting cylinder, and the other end is connected to the bearing block. A guide block is provided on the bearing block. A protrusion is elastically and slidably connected to the guide block along its axial direction. It also includes a guide groove provided on the installation cavity. The guide block is used to cooperate with the groove wall on one side of the guide groove to guide the bearing block.

3. A stamping device for a compressor housing according to claim 2, characterized in that: The guide groove has an inclined section, a vertical section and a horizontal section which are interconnected. The inclined section is inclined downward from the side close to the mold cavity to the side away from the mold cavity. A limiting groove is provided in the vertical section, and a connecting groove is provided in the horizontal section. The depth of the connecting groove gradually increases toward the vertical section and is connected with the limiting groove. The protrusion is used to cooperate with the groove wall on one side of the limiting groove to guide the bearing block.

4. A stamping device for a compressor housing according to claim 3, characterized in that: One end of the groove bottom of the connecting groove is flush with the groove bottom of the limiting groove, and the other end is flush with the groove bottom of the horizontal section, so that the protrusion transitions from the limiting groove to the horizontal section.

5. A stamping device for a compressor housing according to claim 2, characterized in that: A sliding rod is horizontally arranged on the positioning frame, the sliding rod and the bearing block are slidably matched, and a clamping spring is sleeved on the outer side of the sliding rod, one end of the clamping spring is connected to the bearing block, and the other end is connected to the positioning frame, and the clamping spring can be extended and retracted along the radial direction of the mold cavity.

6. A stamping device for a compressor housing according to any one of claims 2 to 5, characterized in that: The clamping member is a clamping wheel rotatably mounted on the end of the positioning frame, and the rotation axis of the clamping wheel extends in the vertical direction.

7. A stamping device for a compressor housing according to claim 6, characterized in that: A fixed frame is horizontally slidably installed on the sliding block, a vertically arranged guide rod is fixedly installed on the fixed frame, and a vertically arranged rack is also fixedly installed on the fixed frame, a vertical plate is fixedly installed on the positioning frame, and the vertical plate and the guide rod slide up and down in cooperation, a driving gear is rotatably installed on the inner side of the vertical plate, and the driving gear and the rack are correspondingly arranged up and down, a first transmission gear connected to the driving gear is also rotatably installed on the vertical plate, and a second transmission gear connected to the clamping member is rotatably installed on the positioning frame, and the first transmission gear and the second transmission gear are in transmission cooperation.

8. A stamping device for a compressor housing according to claim 3, characterized in that: The guide groove is a right-angled triangle structure.

9. A stamping device for a compressor housing according to claim 7, characterized in that: A pillar is fixedly installed on the fixing seat, a top plate is fixedly arranged on the upper end of the pillar, and the stamping die and the top plate are slidably matched in the vertical direction.

10. A stamping device for a compressor housing according to claim 7, characterized in that: A vertically arranged sliding column is fixedly provided on the fixed seat, and the sliding column passes through the unloading platform and slides with it so that the unloading platform slides up and down along the sliding column. A spring is sleeved on the outer side of the sliding column, one end of the spring is connected to the fixed seat, and the other end is connected to the unloading platform.

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