A multi-station punching device for crankshaft machining

Abstract

The utility model discloses a kind of punching device for multi-station crankshaft machining, it is related to crankshaft machining technical field, including bottom plate, one end of the bottom plate is fixed with vertical board, the other end of the bottom plate is fixed with support plate, vertical board is fixedly installed with horizontal plate, the upper and lower surface of the horizontal plate is equipped with the limiting mechanism for placing crankshaft workpiece, one side of the horizontal plate is equipped with the drilling mechanism for carrying out punching operation to crankshaft workpiece.The utility model can fix multiple crankshaft workpieces simultaneously by multiple V-shaped lower positioning block and V-shaped upper positioning block, realize multi-station synchronous machining, improve production efficiency, the design of V-shaped positioning block and guide block can ensure that crankshaft workpiece remains stable during processing, avoid deviation, to improve punching precision, rotating assembly and electric push rod cooperate with each other, the direction and pressure of pressing plate can be flexibly adjusted, adapt to different specifications of crankshaft workpiece, enhance the versatility of device.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft machining technology, specifically a drilling device for multi-station crankshaft machining. Background Technology

[0002] As a core component of mechanical equipment such as air conditioning compressors, the crankshaft's machining accuracy directly affects the equipment's operating efficiency and lifespan. Because air conditioning compressor crankshafts are irregularly shaped, traditional crankshaft drilling devices typically employ a single-station design, resulting in low processing efficiency and insufficient positioning accuracy, easily leading to hole position deviations and affecting the crankshaft's dynamic balance. For example, a multi-station positioning drilling locator described in patent CN221184771U uses a similar working principle and drilling method to crankshaft drilling devices. This device first fixes several workpieces and then moves their positions to achieve continuous processing. However, this device only has one drill bit, making it still a single-hole drilling operation and failing to solve the problem of low processing efficiency.

[0003] Based on this, a drilling device for multi-station crankshaft machining is now provided, which can eliminate the drawbacks of existing technical solutions. Utility Model Content

[0004] The purpose of this invention is to provide a drilling device for multi-station crankshaft machining, so as to solve the problem of low machining efficiency caused by single-station design and single drilling operation in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A drilling device for multi-station crankshaft machining includes a base plate, a vertical plate fixedly mounted at one end of the base plate, a support plate fixedly mounted at the other end of the base plate, a horizontal plate fixedly mounted on the vertical plate, a limiting mechanism for placing crankshaft workpieces on the upper and lower surfaces of the horizontal plate, and a drilling mechanism for drilling crankshaft workpieces on one side of the horizontal plate.

[0007] The limiting mechanism includes several V-shaped lower positioning blocks fixedly mounted on the upper surface of the horizontal plate. Two adjacent V-shaped lower positioning blocks form a group. An electric push rod is provided between the V-shaped lower positioning blocks in the group. The electric push rod is rotatably mounted on the horizontal plate. A pressure plate is fixedly mounted on the output end of the electric push rod. V-shaped upper positioning blocks are symmetrically mounted on both ends of the bottom of the pressure plate. The V-shaped lower positioning blocks and the V-shaped upper positioning blocks are adapted to each other in shape and size. A limiting plate corresponding to the position of the V-shaped lower positioning blocks is provided at the end of the horizontal plate. A limiting groove for placing the end of the crankshaft workpiece is opened on the surface of the limiting plate. The bottom end of the electric push rod passes through the horizontal plate and is connected to the rotating assembly. The rotating assembly is used to adjust the direction of the pressure plate.

[0008] Preferably, the rotating assembly includes a first bevel gear fixedly disposed at the bottom of any of the electric push rods, a second bevel gear meshing with one side of the first bevel gear, a plurality of second bevel gears being fixedly connected to each other by a rotating shaft, the rotating shaft being connected to the horizontal plate through a support base, one end of the rotating shaft being fixedly connected to the output end of a drive motor, and the drive motor being fixedly mounted at the bottom of the horizontal plate.

[0009] Preferably, the drilling mechanism includes several supports fixedly connected to the horizontal plate. The upper surface of the supports is provided with a moving groove, and a moving block is slidably arranged inside the moving groove. A drilling motor is installed on the moving block, and the drilling motor is fixedly installed on the surface of the moving block by several bolts. A drill bit is fixedly connected to the output end of the drilling motor. Two adjacent moving blocks are set as a group, and the moving blocks in a group are fixedly connected by a fixed block. An electric telescopic rod is fixedly installed on the side wall of the horizontal plate, and the output end of the electric telescopic rod is fixedly connected to the fixed block.

[0010] Preferably, the vertical plate is provided with a plurality of limiting grooves for limiting the ends of the crankshaft workpiece.

[0011] Preferably, a control panel is fixedly installed on one side of the support plate.

[0012] Preferably, the lower end of the V-shaped upper positioning block is symmetrically provided with guide blocks, and the upper surface of the V-shaped lower positioning block is provided with guide grooves that are adapted to the guide blocks.

[0013] Preferably, the rotation directions of the plurality of second bevel gears are consistent.

[0014] Preferably, a protective box is provided on the outer side of the first bevel gear and the second bevel gear. The protective box is fixedly installed at the bottom of the horizontal plate, and a door is opened on one side of the protective box.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In this multi-station crankshaft machining drilling device, multiple crankshaft workpieces can be fixed simultaneously by multiple V-shaped lower positioning blocks and V-shaped upper positioning blocks, realizing multi-station synchronous processing, reducing processing time, and thus improving production efficiency. The V-shaped positioning blocks and guide blocks cooperate with each other to ensure that the crankshaft workpiece remains stable during processing, avoids displacement, and improves drilling accuracy. The rotating component and electric push rod work together to flexibly adjust the direction and pressure of the pressure plate, adapting to crankshaft workpieces of different specifications and enhancing the versatility of the device. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of one side of Example 1.

[0018] Figure 2 This is a schematic diagram of the structure on the other side of Example 1.

[0019] Figure 3 This is a schematic diagram of the structure of the electric telescopic rod after it has been retracted in Example 1.

[0020] Figure 4 This is a partial structural diagram of Example 1.

[0021] Figure 5 This is a schematic diagram of the rotating component in Example 1.

[0022] Figure 6 This is a schematic diagram of the structure of the pressure plate after rotation in Example 1.

[0023] Figure 7 This is a schematic diagram of the structure of Example 2.

[0024] Reference numerals in the attached drawings: base plate 101, vertical plate 102, support plate 103, horizontal plate 104, limiting groove 105, control panel 106, limiting mechanism 200, V-shaped lower positioning block 201, electric push rod 202, pressure plate 203, V-shaped upper positioning block 204, limiting plate 205, first bevel gear 206, second bevel gear 207, rotating shaft 208, guide block 209, protective box 210, drilling mechanism 300, bracket 301, moving groove 302, moving block 303, drill bit 304, fixing block 305, electric telescopic rod 306. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] Example 1

[0027] In this embodiment, as Figures 1-6 As shown, a drilling device for multi-station crankshaft machining includes a base plate 101, a vertical plate 102 fixedly mounted at one end of the base plate 101, and a support plate 103 fixedly mounted at the other end of the base plate 101. The base plate 101 provides support, and the vertical plate 102 and the support plate 103 are respectively fixed at both ends of the base plate 101 to form a support frame. The vertical plate 102 is used to install a horizontal plate 104 and a limiting mechanism 200, while the support plate 103 is used to fix a control panel 106 to ensure convenient operation. The horizontal plate 104 is fixedly mounted on the vertical plate 102. The upper and lower surfaces of the horizontal plate 104 are provided with limiting mechanisms 200 for placing crankshaft workpieces, which can place multiple crankshaft workpieces at the same time. One side of the horizontal plate 104 is provided with a drilling mechanism 300 for drilling crankshaft workpieces, which can realize multi-position drilling.

[0028] The limiting mechanism 200 includes several V-shaped lower positioning blocks 201 fixedly mounted on the upper surface of the horizontal plate 104. Two adjacent V-shaped lower positioning blocks 201 form a group. Together with the pressure plate 203 and V-shaped upper positioning block 204 driven by the electric push rod 202, it can simultaneously clamp and fix multiple crankshaft workpieces, achieving multi-station synchronous processing. An electric push rod 202 is provided between the V-shaped lower positioning blocks 201 within a group. The electric push rod 202 is rotatably mounted on the horizontal plate 104. The output end of the electric push rod 202 is fixedly mounted with the pressure plate 203. The electric push rod 202 drives the pressure plate 203 to press down, coordinating with the V-shaped upper positioning block 204 and V-shaped lower positioning block 201 to clamp the crankshaft, ensuring no displacement of the workpiece during processing. V-shaped upper positioning blocks are symmetrically mounted at both ends of the bottom of the pressure plate 203. 204. The V-shaped lower positioning block 201 and the V-shaped upper positioning block 204 are matched in shape and specifications to accommodate crankshaft workpieces of different diameters, ensuring uniform distribution of clamping force, avoiding workpiece deformation or surface damage, and forming a stable clamping structure. The end of the horizontal plate 104 is provided with a limiting plate 205 corresponding to the position of the V-shaped lower positioning block 201. The limiting plate 205 can be installed on the surface of the horizontal plate 104 by several bolts, making it easy to replace the limiting plate 205 of different sizes and specifications, thereby adapting to different models of crankshaft workpieces. The surface of the limiting plate 205 is provided with a limiting groove for placing the end of the crankshaft workpiece. The bottom end of the electric push rod 202 passes through the horizontal plate 104 and is connected to the rotating assembly. The rotating assembly is used to adjust the direction of the pressure plate 203, making it easy to adapt to different workpiece placement requirements and enhancing the versatility of the device.

[0029] Among them, such as Figure 5 As shown, the rotating assembly includes a first bevel gear 206 fixedly mounted at the bottom of any electric push rod 202. A second bevel gear 207 meshes with one side of each first bevel gear 206. Several second bevel gears 207 are fixedly connected via a rotating shaft 208. The rotating shaft 208 is connected to a horizontal plate 104 via a support base. One end of the rotating shaft 208 is fixedly connected to the output end of a drive motor. The drive motor is fixedly mounted at the bottom of the horizontal plate 104. The drive motor drives the rotating shaft 208 to rotate, causing the multiple second bevel gears 207 on the rotating shaft 208 to rotate synchronously, thereby driving the meshing first bevel gear 206 to rotate. This, in turn, causes the electric push rod 202, the pressure plate 203 above it, and the V-shaped upper positioning block 204 to rotate, achieving synchronous adjustment of the directions of multiple pressure plates 203. This ensures that the crankshaft workpiece positioning angle is consistent across all workstations, improving machining accuracy.

[0030] Among them, such as Figures 1-6As shown, the drilling mechanism 300 includes several supports 301 fixedly connected to the horizontal plate 104. A movable groove 302 is formed on the upper surface of each support 301. By combining movable blocks 303 on multiple supports 301 with drill bits 304, drilling can be performed simultaneously on different positions of the crankshaft workpiece, meeting multi-station processing requirements. Movable blocks 303 are slidably arranged inside the movable groove 302. A drilling motor is mounted on the movable block 303. Several screw holes (not shown in the figure) are provided on the surface of the movable block 303 to facilitate adjusting the position of the drilling motor or replacing it with different models to adapt to different types of crankshaft workpieces. The movable block 303 and supports 301... The surface is marked with scale lines to facilitate adjustment of the motor position and control of the drilling depth. The drilling motor is fixedly mounted on the surface of the moving block 303 by several bolts. The output end of the drilling motor is fixedly connected to the drill bit 304. Two adjacent moving blocks 303 are set as a group. The moving blocks 303 in the group are fixedly connected by the fixing block 305. An electric telescopic rod 306 is fixedly installed on the side wall of the horizontal plate 104. The output end of the electric telescopic rod 306 is fixedly connected to the fixing block 305. By controlling the displacement of the fixing block 305, the group of moving blocks 303 are driven to move forward and backward synchronously, so as to realize the axial movement of the drill bit 304 and ensure the consistency of the drilling depth.

[0031] Among them, such as Figures 1-4 As shown, a number of limiting grooves 105 are evenly provided on the vertical plate 102 for limiting the end of the crankshaft workpiece. The limiting grooves 105 match the shape of the end of the crankshaft workpiece. The limiting grooves 105 form a physical constraint on the end of the crankshaft, preventing the workpiece from vibrating or displacing due to force during drilling. Multiple crankshaft workpieces can be fixed at the same time through the evenly distributed limiting grooves 105.

[0032] Among them, such as Figure 1 and Figure 2 As shown, a control panel 106 is fixedly installed on one side of the support plate 103. The control panel 106 is connected to the electrical components, which facilitates the output of commands, realizes automated control, reduces manual intervention, and reduces the difficulty of operation and labor intensity.

[0033] Among them, such as Figure 4 and Figure 6 As shown, the lower end of the V-shaped upper positioning block 204 is symmetrically provided with guide blocks 209, and the upper surface of the V-shaped lower positioning block 201 is provided with guide grooves that are adapted to the guide blocks 209. By snapping the guide blocks 209 into the guide grooves, the restriction effect on both sides of the crankshaft workpiece is achieved to prevent displacement. The guide blocks 209 can be set as a rectangular structure according to the actual environmental requirements.

[0034] Among them, such as Figure 5As shown, the rotation directions of several second bevel gears 207 are consistent, which makes the rotation directions of several first bevel gears 206 and electric push rods 202 consistent, ensuring coordinated action, avoiding mechanical interference caused by asynchrony, and ensuring overall practical performance.

[0035] Example 2

[0036] The difference from Example 1 is that, as in Example 2, ... Figure 7 As shown, a protective box 210 is provided on the outer side of the first bevel gear 206 and the second bevel gear 207. The protective box 210 is fixedly installed at the bottom of the horizontal plate 104. A door is opened on one side of the protective box 210 to facilitate lubrication of the bevel gear. The protective box 210 is designed to effectively protect the rotating components from external interference and damage, improve operational safety, and extend the service life of the components.

[0037] In use, first place several crankshaft workpieces on the V-shaped lower positioning block 201 on the horizontal plate 104, ensuring that one end of the crankshaft workpiece is embedded in the limiting groove of the limiting plate 205 and the other end is embedded in the limiting groove 105, initially restricting its position. Then, start the electric push rod 202 to push the pressure plate 203 downward, so that the V-shaped upper positioning block 204 cooperates with the V-shaped lower positioning block 201 to clamp and fix the crankshaft workpieces. The guide block 209 and the guide groove further ensure that the workpieces do not shift during the clamping process. If it is inconvenient to place the crankshaft workpieces, the angle of the crankshaft workpieces needs to be adjusted. The drive motor drives the rotating shaft 208 to rotate. When the crankshaft rotates, the second bevel gear 207 on the rotating shaft 208 meshes with the first bevel gear 206, thereby driving the electric push rod 202 to rotate, realizing the synchronous angle adjustment of the pressure plate 203 and the crankshaft workpiece. After adjustment, the electric push rod 202 is started again to perform a pressing operation. The electric telescopic rod 306 pushes the fixed block 305, causing the moving block 303 to slide in the moving groove 302 towards the side closer to the crankshaft workpiece, so that the drill bit 304 approaches the crankshaft workpiece. The drilling motor drives the drill bit 304 to rotate, performing a drilling operation on the crankshaft workpiece. Multiple drill bits 304 can work simultaneously to realize multi-station processing, which is suitable for batch production scenarios.

[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A drilling device for multi-station crankshaft machining, comprising a base plate (101), a vertical plate (102) fixedly provided at one end of the base plate (101), a support plate (103) fixedly provided at the other end of the base plate (101), a horizontal plate (104) fixedly installed on the vertical plate (102), a limiting mechanism (200) for placing crankshaft workpieces provided on the upper and lower surfaces of the horizontal plate (104), and a drilling mechanism (300) for drilling crankshaft workpieces provided on one side of the horizontal plate (104); Its features are, The limiting mechanism (200) includes several V-shaped lower positioning blocks (201) fixedly disposed on the upper surface of the horizontal plate (104). Two adjacent V-shaped lower positioning blocks (201) form a group. An electric push rod (202) is provided between the V-shaped lower positioning blocks (201) in a group. The electric push rod (202) is rotatably mounted on the horizontal plate (104). A pressure plate (203) is fixedly installed at the output end of the electric push rod (202). The bottom ends of the pressure plate (203) are symmetrically mounted with... The upper V-shaped positioning block (204) and the lower V-shaped positioning block (201) are adapted to the shape and specifications of the upper V-shaped positioning block (204). The end of the horizontal plate (104) is provided with a limiting plate (205) corresponding to the position of the lower V-shaped positioning block (201). The surface of the limiting plate (205) is provided with a limiting groove for placing the end of the crankshaft workpiece. The bottom end of the electric push rod (202) passes through the horizontal plate (104) and is connected to the rotating assembly. The rotating assembly is used to adjust the direction of the pressure plate (203).

2. The drilling device for multi-station crankshaft machining according to claim 1, characterized in that, The rotating assembly includes a first bevel gear (206) fixedly disposed at the bottom of any of the electric push rods (202), and a second bevel gear (207) meshing on one side of the first bevel gear (206). A plurality of second bevel gears (207) are fixedly connected to each other by a rotating shaft (208). The rotating shaft (208) is connected to the horizontal plate (104) through a support seat. One end of the rotating shaft (208) is fixedly connected to the output end of the drive motor. The drive motor is fixedly installed at the bottom of the horizontal plate (104).

3. The drilling device for multi-station crankshaft machining according to claim 1, characterized in that, The drilling mechanism (300) includes several supports (301) fixedly connected to the horizontal plate (104). The upper surface of the support (301) is provided with a moving groove (302). A moving block (303) is slidably provided inside the moving groove (302). A drilling motor is installed on the moving block (303). The drilling motor is fixedly installed on the surface of the moving block (303) by several bolts. A drill bit (304) is fixedly connected to the output end of the drilling motor. Two adjacent moving blocks (303) are set as a group. The moving blocks (303) located in the group are fixedly connected by a fixing block (305). An electric telescopic rod (306) is fixedly installed on the side wall of the horizontal plate (104). The output end of the electric telescopic rod (306) is fixedly connected to the fixing block (305).

4. The drilling device for multi-station crankshaft machining according to claim 1, characterized in that, The vertical plate (102) is provided with a number of limiting grooves (105) evenly distributed to limit the ends of the crankshaft workpiece.

5. A drilling device for multi-station crankshaft machining according to claim 1, characterized in that, A control panel (106) is fixedly installed on one side of the support plate (103).

6. The drilling device for multi-station crankshaft machining according to claim 1, characterized in that, The lower end of the V-shaped upper positioning block (204) is symmetrically provided with guide blocks (209), and the upper surface of the V-shaped lower positioning block (201) is provided with guide grooves that are adapted to the guide blocks (209).

7. A drilling device for multi-station crankshaft machining according to claim 2, characterized in that, The rotation directions of several second bevel gears (207) are consistent.

8. A drilling device for multi-station crankshaft machining according to claim 2, characterized in that, The first bevel gear (206) and the second bevel gear (207) are provided with a protective box (210) on their outer sides. The protective box (210) is fixedly installed at the bottom of the horizontal plate (104), and a door is opened on one side of the protective box (210).

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