Draught fan shell stamping machining equipment

Abstract

The utility model belongs to the technical field of stamping equipment, and particularly relates to draught fan shell stamping equipment which comprises a machine body, a workbench, a transmission mechanism, an upper stamping die, a lower stamping die and a limiting adjusting mechanism, the workbench is fixedly connected with the machine body, one end of the transmission mechanism is fixedly connected with the machine body, the other end of the transmission mechanism is fixedly connected with the upper stamping die, and the upper stamping die is matched with the lower stamping die. A stamping groove is formed in the workbench, the lower stamping die comprises a plurality of models formed by splicing, the lower stamping die is detachably connected with the stamping groove, the limiting adjusting mechanisms comprise springs and limiting plates, one ends of the springs are fixedly connected with the stamping groove, the other ends of the springs are fixedly connected with the limiting plates, the limiting plates are arc-shaped plates and are in lap joint with the outer wall of the lower stamping die, and through holes are formed in the limiting plates. The transmission mechanism is a hydraulic cylinder, and the machine body is further fixedly connected with an air blower. The stamping machine has the advantages that the finished machine shell can be conveniently disassembled, and the stamping machining quality of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping equipment, in particular to a fan casing stamping processing equipment. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. Its main structural components include impeller, casing, air inlet, bracket, motor, pulley, coupling, muffler and transmission parts (bearings). As the first line of defense of the fan, the casing plays a basic role in supporting and protecting internal components. The processing and manufacturing of the casing can generally be divided into three parts, namely stamping process, welding process and assembly process. Stamping processing is a production technology that uses the power of conventional or special stamping equipment to directly subject the sheet metal to deformation force in the mold and deform it, thereby obtaining product parts of a certain shape, size and performance.

[0003] After the existing stamping equipment processes the casing sheet, the finished casing is easily stuck on the workbench, and it is cumbersome to remove it manually, which affects the processing efficiency of the equipment; and workers use tools to apply stress to the casing, which can easily cause plastic deformation of the casing and damage the quality of the finished product. Utility Model Content

[0004] The utility model is aimed at the above-mentioned problems and specifically designs a fan casing stamping processing equipment to facilitate the demoulding of the finished casing and improve the stamping processing quality of the equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides a fan casing stamping processing equipment, including a machine body, a workbench, a transmission mechanism, an upper punch, a lower punch and a limit adjustment mechanism, the workbench is fixedly connected to the machine body, one end of the transmission mechanism is fixedly connected to the machine body, and the other end is fixedly connected to the upper punch, and the upper punch matches the lower punch; the workbench is provided with a stamping groove, the lower punch includes a plurality of groups of assembled models, the lower punch is detachably connected to the stamping groove, and the limit adjustment mechanism is arranged between the stamping groove and the lower punch.

[0006] By adopting the above technical scheme, the assembled lower punch and the limit adjustment mechanism cooperate with each other, which facilitates the demolding of the finished casing, releases the clamping restriction of the limit adjustment mechanism on the lower punch, and automatically demolds the formed casing without the need for tools or manpower to eject the casing, thereby avoiding damage to the casing and improving the stamping processing quality of the equipment.

[0007] Furthermore, the limit adjustment mechanism has multiple groups, including springs and limit plates, one end of the spring is fixedly connected to the stamping groove, and the other end is fixedly connected to the limit plate, and the limit plate overlaps the lower punch.

[0008] By adopting the above technical scheme, the spring and the limit plate form a simple clamping device, and the clamping of the lower punch is achieved by quickly adjusting the compression amount of the spring, which is convenient to use and saves time and effort; multiple groups of limit adjustment mechanisms work together, the output stress distribution is uniform, and the clamping effect is good, which can effectively prevent the mold displacement of the lower punch, play a safety role in the stamping process, and ensure the quality of the finished product.

[0009] Furthermore, the limiting plate is an arc-shaped plate, which matches the curvature of the outer wall of the lower punch.

[0010] By adopting the above technical solution, the arc-shaped design of the limit plate better fits the curvature of the outer wall of the lower punch, increases the contact area between the limit plate and the lower punch, improves the stability of the crimping between the two, and at the same time increases the stability of the lower punch assembly structure, ensuring the normal progress of the stamping process.

[0011] Furthermore, the limiting plate is provided with a through hole, and a traction rope is sleeved on the through hole.

[0012] By adopting the above technical solution and setting of the traction rope, it is convenient for the equipment or workers to apply force to the limit adjustment mechanism to compress the spring, thereby releasing the clamping restriction of the limit plate on the lower punch with less effort.

[0013] Furthermore, the stamping groove is a stepped groove, and the lower punch is clamped in the small diameter groove of the stepped groove.

[0014] By adopting the above technical solution, the stepped design of the stamping groove clamps the lower punch in the next step groove of the stamping groove, and the upper step groove applies a clamping force to the side wall of the lower punch, thereby limiting the deformation of the lower punch, improving the stability of the lower punch structure, and ensuring the quality of the finished product.

[0015] Furthermore, the transmission mechanism is a hydraulic cylinder.

[0016] By adopting the above technical solution, the hydraulic cylinder provides power for the stamping process of the upper punch. The hydraulic cylinder itself has flexible and rapid transmission and transmits power evenly and smoothly. Therefore, the upper punch can evenly apply stress to the sheet material, thereby improving the stamping process efficiency of the equipment and the quality of the finished casing.

[0017] Furthermore, the machine body is also fixedly connected with a blower.

[0018] By adopting the above technical solution, the setting of the blower can ventilate the area near the workbench, accelerate the cooling of the equipment, and prevent workers from being scalded; when hot stamping is adopted, according to the principle of thermal expansion and contraction, the cooling of the molding casing is accelerated, which is beneficial to the demoulding of the finished product.

[0019] In summary, the utility model has the following advantages and beneficial technical effects:

[0020] 1. The utility model utilizes an assembled lower punch die in cooperation with a limit adjustment mechanism to realize demoulding of the finished mechanism, change the compression amount of the spring, release the pressing restriction of the limit plate on the casing, and realize automatic demoulding of the finished casing. There is no need to use tools or manpower to eject the casing, thereby ensuring the quality of the formed casing; multiple groups of limit adjustment mechanisms output uniform stress to the lower punch die, which can effectively prevent the mold displacement of the lower punch die and play a safety role in the stamping process; the transmission mechanism is a hydraulic cylinder, which has a flexible and stable transmission and a quick response, thereby ensuring that the upper punch die evenly applies force to the sheet material, thereby improving the stamping process efficiency and quality of the equipment.

[0021] 2. The arc-shaped design of the limit plate increases the contact area with the lower punch and improves the stability of the lower punch structure; the stepped design of the stamping groove clamps the lower punch in the next-level stepped groove, and with the help of the upper-level stepped groove to limit the deformation of the lower punch, the stability of the lower punch structure is improved to ensure the normal progress of the stamping process.

[0022] 3. The setting of the traction rope makes it convenient for workers or equipment to apply force to the limit adjustment mechanism, thereby releasing the clamping restriction of the limit plate on the lower punch with less effort.

[0023] 4. The blower accelerates the air flow, which makes the equipment cool down and prevents workers from being scalded. In addition, according to the principle of thermal expansion and contraction, cooling down makes it easier for the finished casing to separate from the lower punch die. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 It is a three-dimensional schematic diagram of the utility model. Figure 1 ;

[0026] Figure 2 It is a usage state diagram of the utility model;

[0027] Figure 3 It is a partial structural schematic diagram of the utility model;

[0028] Figure 4 It is a three-dimensional schematic diagram of the limit adjustment mechanism in the utility model;

[0029] Figure 5 It is a three-dimensional schematic diagram of the utility model. Figure 2 .

[0030] The reference numerals in the accompanying drawings are:

[0031] 1. Machine body; 2. Workbench; 3. Transmission mechanism; 4. Upper punch; 5. Lower punch;

[0032] 6. Limit adjustment mechanism; 61. Spring; 62. Limit plate; 63. Traction rope;

[0033] 7. Punching trough; 8. Blower; 9. Sheet material. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-Figure 5 The utility model is further described in detail:

[0035] like Figure 1-Figure 2 As shown, the present embodiment discloses a fan casing stamping processing equipment, including a body 1, a workbench 2, a transmission mechanism 3, an upper punch 4, a lower punch 5 and a limit adjustment mechanism 6. The body 1 is a three-dimensional frame structure, the workbench 2 is welded to the lower frame of the body 1, one end of the transmission mechanism 3 is fixedly connected to the upper frame of the body 1, and the other end is fixedly connected to the upper punch 4. The model of the upper punch 4 matches that of the lower punch 5. The workbench 2 is provided with a stamping groove 7. The lower punch 5 includes three groups of assembled models. The lower punch 5 is detachably arranged in the stamping groove 7, and the limit adjustment mechanism 6 is arranged between the stamping groove 7 and the lower punch 5.

[0036] like Figure 3-Figure 4 As shown, the limit adjustment mechanism 6 includes a spring 61 and a limit plate 62. The spring 61 is a compression spring 61, one end of which is welded to the inner wall of the stamping groove 7, and the other end is welded to the limit plate 62. The limit plate 62 overlaps the outer wall of the lower punch 5. The limit adjustment mechanism 6 has four groups, which are symmetrically arranged in the stamping groove 7; the limit plate 62 is an arc-shaped plate, and the curvature matches the curvature of the outer wall of the connected lower punch 5; the limit plate 62 is provided with a through hole, and a traction rope 63 is sleeved in the through hole, and the traction rope 63 is a steel wire rope.

[0037] like Figure 5 As shown, the stamping groove 7 is a stepped groove, the lower punch 5 is clamped in the stamping groove 7, and matches the size of the small diameter groove in the stepped groove; the transmission mechanism 3 is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is fixedly connected to the upper frame of the body 1 by fasteners, and the piston part is fixedly connected to the upper surface of the upper punch 4 by fasteners, and the transmission of the hydraulic cylinder is directed toward the lower punch 5; the side frame of the body 1 is also fixedly connected to the blower 8 by fasteners, and the air outlet of the blower 8 is close to the stamping groove 7.

[0038] The working principle of a fan casing stamping processing equipment of the utility model is:

[0039] 1. The equipment comprises a machine body 1, a workbench 2, a transmission mechanism 3, an upper punch 4, a lower punch 5 and a limit adjustment mechanism 6. The machine body 1 is a three-dimensional frame structure. The workbench 2 is welded on the lower frame of the machine body 1. One end of the transmission mechanism 3 is fixedly connected to the upper frame of the machine body 1, and the other end is fixedly connected to the upper punch 4. The models of the upper punch 4 and the lower punch 5 match. The workbench 2 is provided with a stamping groove 7. The lower punch 5 comprises three groups of assembled models. The lower punch 5 is detachably arranged in the stamping groove 7. The limit adjustment mechanism 6 is arranged between the stamping groove 7 and the lower punch 5. Before the stamping process, the model of the lower punch 5 is assembled and combined, and placed in the position corresponding to the upper punch 4 in the stamping groove 7, and then the sheet 9 is horizontally placed on the workbench 2. The transmission mechanism 3 drives the upper punch 4 to telescopically feed. The sheet 9 is subjected to the pressure provided by the upper punch 4 and undergoes plastic deformation, and finally the stamping manufacturing of the fan casing is completed.

[0040] 2. The limit adjustment mechanism 6 includes a spring 61 and a limit plate 62. The spring 61 is a compression spring 61, one end of which is welded to the inner wall of the stamping groove 7, and the other end is welded to the limit plate 62. The limit plate 62 overlaps the outer wall of the lower punch 5. The limit adjustment mechanism 6 has four groups, which are symmetrically arranged in the stamping groove 7; the spring 61 is in a compressed state, storing deformation energy, so that the limit plate 62 is tightly pressed against the outer wall of the lower punch 5. After the stamping is completed, the transmission mechanism 3 feeds in the reverse direction to drive the upper punch 4 to separate from the forming casing. At this time, the spring 61 continues to be compressed to release the clamping restriction of the limit plate 62 on the lower punch 5, so that the molded product can be removed from the assembled lower punch 5 to realize the demolding of the finished casing.

[0041] 3. The limit plate 62 is an arc-shaped plate, and the curvature matches the curvature of the outer wall of the connected lower punch 5; multiple groups of limit plates 62 cooperate with each other and are crimped onto the outside of the lower punch 5. The arc-shaped plate fits the curvature of the outer wall of the lower punch 5 more closely, further enhancing the stability of the crimping between the two.

[0042] 4. The limit plate 62 is provided with a through hole, in which a traction rope 63 is sleeved, and the traction rope 63 is a steel wire rope; after the punching is completed, the traction rope 63 is pulled to release the pressing restriction of the limit plate 62 on the lower punch 5.

[0043] 5. The stamping groove 7 is a stepped groove, and the lower punch 5 is clamped in the stamping groove 7 and matches the size of the small diameter groove in the stepped groove; the side wall of the next step in the stepped stamping groove 7 is in close contact with the outer wall of the lower punch 5, providing the lower punch 5 with a compressive stress, thereby realizing the restriction on the lower punch 5.

[0044] 6. The transmission mechanism 3 is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is fixedly connected to the upper frame of the body 1 by fasteners, the piston part is fixedly connected to the upper surface of the upper punch 4 by fasteners, and the transmission of the hydraulic cylinder is directed toward the lower punch 5; the hydraulic cylinder converts hydraulic energy into mechanical energy, the piston rod performs reciprocating linear motion based on the cylinder body, and the upper punch 4 follows the piston rod to feed synchronously, thereby applying external force to the sheet 9, causing it to produce plastic deformation, thereby realizing the stamping processing of the fan casing.

[0045] 7. The side frame of the machine body 1 is also fixedly connected with a blower 8 through fasteners, and the air outlet of the blower 8 is close to the stamping groove 7; the blower 8 accelerates the air circulation at the stamping groove 7 and accelerates the cooling of the casing after the stamping process.

[0046] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A fan casing stamping processing equipment, characterized in that: It includes a machine body, a workbench, a transmission mechanism, an upper punch, a lower punch and a limit adjustment mechanism. The workbench is fixedly connected to the machine body. One end of the transmission mechanism is fixedly connected to the machine body, and the other end is fixedly connected to the upper punch. The upper punch matches the lower punch. The workbench is provided with a punching groove. The lower punch includes a plurality of assembled models. The lower punch is detachably connected to the punching groove. The limit adjustment mechanism is arranged between the punching groove and the lower punch.

2. The fan casing stamping processing equipment according to claim 1 is characterized in that: The limit adjustment mechanism has multiple groups, including springs and limit plates. One end of the spring is fixedly connected to the punching groove, and the other end is fixedly connected to the limit plate. The limit plate overlaps the lower punch.

3. The fan casing stamping processing equipment according to claim 2 is characterized in that: The limiting plate is an arc-shaped plate, which matches the curvature of the outer wall of the lower punch.

4. The fan casing stamping equipment according to claim 3, characterized in that: The limiting plate is provided with a through hole, and a traction rope is sleeved on the through hole.

5. The fan casing stamping processing equipment according to claim 4 is characterized in that: The punching groove is a stepped groove, and the lower punch is clamped in the small diameter groove of the stepped groove.

6. The fan casing stamping processing equipment according to claim 5, characterized in that: The transmission mechanism is a hydraulic cylinder.

7. The fan casing stamping processing equipment according to claim 6, characterized in that: The machine body is also fixedly connected with a blower.

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