Crank and connecting rod milling device

Abstract

The present application relates to the technical field of automobile parts manufacturing, in particular to a crank connecting rod milling device, mainly comprising a base, a moving assembly one and a fixed block are installed on the top surface of the base, a moving assembly two is installed on the moving assembly one, an installation seat is installed on the top surface of the moving assembly two, and a milling cutter is installed on the side surface of the installation seat, further comprising: a fixing mechanism, the fixing mechanism is arranged above the base, the fixing mechanism comprises a connecting shaft rotatably installed on the side surface of the circular plate through a bearing, and a limiting mechanism, the limiting mechanism is arranged above the base. When the crank connecting rod is fixed by the clamping block, the T-shaped block moves to limit the crank connecting rod, the adjusting groove on the T-shaped block drives the fixed rod to rotate by a certain angle, the fixed rod drives the fixed strip and the extrusion plate to rotate by a certain angle, the extrusion plate extrudes and fixes the side surface of the crank connecting rod, and under the double fixation of the clamping block and the extrusion plate, the crank connecting rod is not easy to shake and deviate during milling, thereby improving the accuracy and quality of milling.

Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing technology, specifically to a crankshaft and connecting rod milling device. Background Technology

[0002] The crankshaft and connecting rod mechanism, as a core moving component of the engine, plays a crucial role in converting the reciprocating linear motion of the piston into the rotational motion of the crankshaft, and is the core link in power transmission and conversion. Its structure consists of components such as the crankshaft, connecting rod, and piston, and it features simple structure, high transmission efficiency, smooth operation, and strong load-bearing capacity, making it widely used in the automotive industry.

[0003] The crank connecting rod has a complex shape, is prone to deformation, has poor rigidity, and requires high dimensional accuracy, positional accuracy, and surface quality, making it difficult to manufacture. During the manufacturing process, intelligent milling equipment is needed to perform high-precision milling on the large and small holes at both ends of the connecting rod, making the holes more accurate and smooth.

[0004] When milling a crank connecting rod, the crank connecting rod is first placed between two clamping blocks. After the clamping blocks clamp and fix both ends of the crank connecting rod, the connecting rod is milled by a cutting tool. Since the crank connecting rod is only squeezed and fixed by the clamping blocks at both ends, the cutting tool will generate a large impact on the connecting rod during the milling process, causing the connecting rod to move and deviate, which in turn affects the milling accuracy and quality. Summary of the Invention

[0005] The purpose of this invention is to provide a crank connecting rod milling device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A crank connecting rod milling device includes: a base, a movable component one and a fixed block mounted on the top surface of the base, a movable component two mounted on the movable component one, a mounting seat mounted on the top surface of the movable component two, a cutting tool mounted on the side of the mounting seat, and a circular plate disposed on one side of the fixed block; and further includes:

[0008] The fixing mechanism is located above the base. The fixing mechanism includes a connecting shaft that is rotatably mounted on the side of the circular plate via a bearing. A mounting block is fixedly mounted on one end of the connecting shaft. Two stops are fixedly mounted on the side of the mounting block. A movable block is provided inside the mounting block.

[0009] A limiting mechanism is provided above the base. The limiting mechanism includes a T-shaped block located on one side of the stop block, and an adjusting rod is fixedly installed on the side of the T-shaped block.

[0010] The extrusion mechanism is located above the base and includes a connecting plate fixedly installed on the side of the stop block. A fixing strip and an extrusion plate are provided on one side of the connecting plate.

[0011] Preferably, a motor is fixedly installed on the side of the fixed block, and a rotating shaft is fixedly installed on the output end of the motor. One end of the rotating shaft passes through the other side of the fixed block and is fixedly connected to the side of the circular plate. The rotating shaft and the fixed block are rotatably connected by a bearing. A counterweight is fixedly installed on the side of the circular plate.

[0012] Preferably, the mounting block has a placement groove on its side and a groove inside the mounting block. The inner wall of the groove is slidably connected to the side of the moving block, and two sliding rods are slidably installed on the top surface of the moving block. The two ends of the sliding rods are fixedly connected to the inner wall of the groove.

[0013] Preferably, an electric push rod is fixedly installed on the outer wall of the mounting block, and the upper end of the electric push rod slides through the outer wall of the mounting block and is fixedly connected to the bottom surface of the moving block.

[0014] Preferably, a connecting strip is fixedly installed on the top surface of the movable block, the upper end of the connecting strip slides through the inner wall of the groove and extends to the top of the mounting block, and a clamping block is fixedly installed on one end of the connecting strip.

[0015] Preferably, a T-shaped groove is provided on the side of the stop block, the inner wall of the T-shaped groove is slidably connected to the outer wall of the T-shaped block, and a baffle is fixedly installed on the side of the T-shaped block.

[0016] Preferably, the inner wall of the T-shaped groove has a through groove one, the inner wall of the groove has a through groove two, the through groove two is connected to the through groove one, the side of the moving block has two inclined grooves, and the outer wall of the adjusting rod is slidably connected to the inner wall of the through groove one, the inner wall of the through groove two and the inner wall of the inclined groove.

[0017] Preferably, a fixed shaft is rotatably mounted on the top surface of the connecting plate via a bearing. The outer wall of the fixed shaft is fixedly connected to one end of a fixed strip, and one end of the fixed strip is fixedly connected to the side of the extrusion plate. A fixed rod is installed through the fixed strip.

[0018] Preferably, an arc-shaped rod is slidably installed on the side of the fixed rod, and an arc-shaped groove is provided through the connecting plate. The inner wall of the arc-shaped groove is fixedly connected to both ends of the arc-shaped rod. An adjustment groove is provided on the bottom surface of the T-shaped block, and the outer wall of the fixed rod is slidably connected to the inner wall of the arc-shaped groove and the inner wall of the adjustment groove.

[0019] Preferably, the circular plate has two screw holes on its side, which are located on both sides of the mounting block. A locking block is fixedly installed on the side of the mounting block, and the locking block is connected to the screw holes by bolts.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] When the crank connecting rod is fixed by the clamping block, the T-block moves to limit the crank connecting rod. The adjustment groove on the T-block drives the fixing rod to rotate at a certain angle. The fixing rod drives the fixing strip and the pressing plate to rotate at a certain angle. The pressing plate presses and fixes the side of the crank connecting rod. Under the double fixation of the clamping block and the pressing plate, the crank connecting rod is less likely to wobble and deviate during milling, thereby improving the accuracy and quality of milling.

[0022] The crank connecting rod is positioned by the placement slot and stop. The electric push rod is activated, which drives the moving block to move. The moving block drives the connecting strip and clamping block to move. The clamping block presses and fixes the upper end of the crank connecting rod. At the same time, the inclined groove on the moving block drives the adjusting rod to move. The adjusting rod drives the T-block to move. The movement of the T-block limits the side of the crank connecting rod, so that the crank connecting rod will not shift or slip when the clamping block presses and fixes the crank connecting rod, thus improving the stability of the crank connecting rod installation and further improving the milling accuracy and quality of the crank connecting rod.

[0023] By adjusting the locking block, bolts, and screw holes, the mounting block can be rotated 180 degrees, thereby rotating the crank connecting rod 180 degrees and aligning the large and small holes at both ends of the crank connecting rod to the center position of the circular plate. The hole at the center position of the circular plate can then be milled using a cutting tool, eliminating the need to remove and reinstall the crank connecting rod. This reduces the conversion time between the large and small holes of the crank connecting rod and improves work efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the circular plate of the present invention;

[0026] Figure 3 This is an exploded view of the three-dimensional structure of the mounting block of the present invention;

[0027] Figure 4 This is an exploded view of the three-dimensional structure of the stop block of the present invention;

[0028] Figure 5 This is a schematic cross-sectional view of the three-dimensional structure of the circular plate in this invention;

[0029] Figure 6 This is an exploded view of the three-dimensional structure of the movable block in this invention;

[0030] Figure 7 This is an exploded view of the three-dimensional structure of the T-shaped block in this invention;

[0031] Figure 8 This is an exploded view of the three-dimensional structure of the connecting plate of the present invention.

[0032] In the picture:

[0033] 1. Base; 101. Moving component one; 102. Moving component two; 103. Mounting base; 104. Cutter; 105. Fixing block; 106. Motor; 107. Rotating shaft; 108. Circular plate;

[0034] 2. Fixing mechanism; 201. Connecting shaft; 202. Mounting block; 203. Placement groove; 204. Stop block; 205. Groove body; 206. Moving block; 207. Electric push rod; 208. Slide rod; 209. Connecting bar; 210. Clamping block;

[0035] 3. Limiting mechanism; 301. T-slot; 302. T-block; 303. Adjusting rod; 304. Through slot one; 305. Through slot two; 306. Inclined slot; 307. Baffle;

[0036] 4. Extrusion mechanism; 401. Connecting plate; 402. Fixed shaft; 403. Fixed strip; 404. Extrusion plate; 405. Fixed rod; 406. Arc groove; 407. Arc rod; 408. Adjustment groove;

[0037] 5. Locking block; 6. Screw hole; 7. Bolt; 8. Counterweight. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0040] like Figures 1-8 As shown, this application provides a crank connecting rod milling device, including: a base 1, a movable component 101 and a fixed block 105 mounted on the top surface of the base 1, a movable component 102 mounted on the movable component 101, a mounting seat 103 mounted on the top surface of the movable component 102, a cutting tool 104 mounted on the side of the mounting seat 103, a circular plate 108 provided on one side of the fixed block 105, the movable component 101 is driven by a cylinder to move a plate, the movable component 102 is mounted above the plate, the movable component 102 is driven by a cylinder to move the plate, the mounting seat 103 is mounted on the plate, and the device further includes:

[0041] Fixing mechanism 2 is located above base 1. Fixing mechanism 2 includes a connecting shaft 201 rotatably mounted on the side of circular plate 108 via bearing. One end of the connecting shaft 201 is fixedly mounted with an installation block 202. Two stops 204 are fixedly mounted on the side of the installation block 202. A moving block 206 is provided inside the installation block 202.

[0042] Specifically, such as Figures 1-8 As shown, a motor 106 is fixedly installed on the side of the fixed block 105, and a rotating shaft 107 is fixedly installed on the output end of the motor 106. One end of the rotating shaft 107 passes through the other side of the fixed block 105 and is fixedly connected to the side of the circular plate 108. The rotating shaft 107 and the fixed block 105 are rotatably connected by a bearing. A counterweight 8 is fixedly installed on the side of the circular plate 108.

[0043] In this embodiment: the motor 106 drives the rotating shaft 107 and the circular plate 108 to rotate, which in turn drives the crank connecting rod to rotate. The counterweight 8 balances the weight on the circular plate 108, making the rotation of the circular plate 108 more stable and improving the processing quality.

[0044] Specifically, such as Figures 1-8 As shown, the mounting block 202 has a placement groove 203 on its side and a groove 205 inside the mounting block 202. The inner wall of the groove 205 is slidably connected to the side of the movable block 206. Two sliding rods 208 are slidably installed on the top surface of the movable block 206. The two ends of the sliding rods 208 are fixedly connected to the inner wall of the groove 205.

[0045] In this embodiment: the groove 205 is used to limit the movement of the moving block 206, making the movement of the moving block 206 more stable, and the slide bar 208 is used to further limit the movement of the moving block 206.

[0046] Specifically, such as Figures 1-8 As shown, an electric push rod 207 is fixedly installed on the outer wall of the mounting block 202. The upper end of the electric push rod 207 slides through the outer wall of the mounting block 202 and is fixedly connected to the bottom surface of the moving block 206.

[0047] In this embodiment: the electric push rod 207 provides power to the moving block 206, which can move the moving block 206 up and down.

[0048] Specifically, such as Figures 1-8 As shown, a connecting strip 209 is fixedly installed on the top surface of the movable block 206. The upper end of the connecting strip 209 slides through the inner wall of the groove 205 and extends to the top of the mounting block 202. A clamping block 210 is fixedly installed on one end of the connecting strip 209.

[0049] In this embodiment: when the movable block 206 moves downward, it drives the connecting bar 209 to move, and the connecting bar 209 drives the clamping block 210 to move to clamp and fix the crank connecting rod.

[0050] Limiting mechanism 3 is located above base 1. Limiting mechanism 3 includes a T-shaped block 302 located on one side of stop 204. An adjusting rod 303 is fixedly installed on the side of T-shaped block 302.

[0051] Specifically, such as Figures 1-8 As shown, a T-shaped groove 301 is provided on the side of the stop block 204. The inner wall of the T-shaped groove 301 is slidably connected to the outer wall of the T-shaped block 302. A baffle 307 is fixedly installed on the side of the T-shaped block 302.

[0052] In this embodiment: the T-shaped groove 301 limits the movement of the T-shaped block 302, making the movement of the T-shaped block 302 more stable. The movement of the T-shaped block 302 blocks and limits the side of the crank connecting rod, so that when the crank connecting rod is squeezed and fixed by the clamping block 210, it will not deviate or fall off, thus improving stability. The baffle 307 blocks the T-shaped groove 301, making it difficult for debris generated during the processing of the crank connecting rod to enter the T-shaped groove 301, ensuring that the movement of the T-shaped block 302 is smoother.

[0053] Specifically, such as Figures 1-8 As shown, the inner wall of the T-shaped groove 301 is provided with a through groove 304, and the inner wall of the groove body 205 is provided with a through groove 305. The through groove 305 is connected to the through groove 304. The side of the moving block 206 is provided with two inclined grooves 306. The outer wall of the adjusting rod 303 is slidably connected to the inner wall of the through groove 304, the inner wall of the through groove 305, and the inner wall of the inclined groove 306.

[0054] In this embodiment: when the movable block 206 moves upward, the inclined groove 306 on the movable block 206 drives the two adjusting rods 303 to move away from each other, and the two adjusting rods 303 drive the two T-shaped blocks 302 to move backward.

[0055] The extrusion mechanism 4 is located above the base 1. The extrusion mechanism 4 includes a connecting plate 401 fixedly installed on the side of the stop block 204. A fixing strip 403 and an extrusion plate 404 are provided on one side of the connecting plate 401.

[0056] Specifically, such as Figures 1-8 As shown, a fixed shaft 402 is rotatably mounted on the top surface of the connecting plate 401 via a bearing. The outer wall of the fixed shaft 402 is fixedly connected to one end of the fixed strip 403. One end of the fixed strip 403 is fixedly connected to the side of the extrusion plate 404. A fixed rod 405 is installed through the fixed strip 403.

[0057] In this embodiment: the fixed shaft 402 can rotate, so that the fixed strip 403 and the pressing plate 404 can rotate.

[0058] Specifically, such as Figures 1-8 As shown, an arc-shaped rod 407 is slidably installed through the side of the fixed rod 405, and an arc-shaped groove 406 is provided through the connecting plate 401. The inner wall of the arc-shaped groove 406 is fixedly connected to both ends of the arc-shaped rod 407. An adjustment groove 408 is provided on the bottom surface of the T-shaped block 302, and the outer wall of the fixed rod 405 is slidably connected to the inner wall of the arc-shaped groove 406 and the inner wall of the adjustment groove 408.

[0059] In this embodiment: through the adjustment groove 408, when the T-block 302 moves, the adjustment groove 408 drives the fixed rod 405 to slide along the arc rod 407, causing it to rotate, which in turn drives the fixed bar 403 to rotate around the fixed shaft 402. The fixed bar 403 drives the pressing plate 404 to rotate at a certain angle to press and fix the crank connecting rod. The arc groove 406 and the arc rod 407 limit the fixed rod 405, making the rotation of the fixed rod 405 more stable.

[0060] Specifically, such as Figures 1-8 As shown, two screw holes 6 are provided on the side of the circular plate 108. The two screw holes 6 are located on both sides of the mounting block 202. A locking block 5 is fixedly installed on the side of the mounting block 202. The locking block 5 is connected to the screw holes 6 by bolts 7. When the mounting block 202 is rotated to different positions, the locking block 5 and the corresponding screw hole 6 are in opposite positions.

[0061] In this embodiment: by using the locking block 5, bolt 7, and screw hole 6, the mounting block 202 and the locking block 5 can be rotated 180 degrees, thereby rotating the crank connecting rod 180 degrees. The locking block 5 then rotates to another screw hole 6 and is fixed by the bolt 7, converting the large and small holes at both ends of the crank connecting rod to the center position of the circular plate 108. The hole at the center position of the circular plate 108 is milled by the cutting tool 104, eliminating the need to remove and reinstall the crank connecting rod, reducing the conversion time between the large and small holes of the crank connecting rod, and improving work efficiency.

[0062] The specific solution is as follows: The crank connecting rod is placed in the placement slot 203. The electric push rod 207 is activated, causing the moving block 206 to move. The moving block 206 moves the connecting strip 209 and the clamping block 210. The clamping block 210 presses and fixes the upper end of the crank connecting rod. Simultaneously, the inclined groove 306 on the moving block 206 moves the adjusting rod 303, which in turn moves the T-block 302. The T-block 302 limits the movement of the crank connecting rod's side, preventing it from shifting or slipping when the clamping block 210 presses and fixes it. As the T-block 302 moves, it causes the fixing rod 405 to slide along the arc-shaped rod 407 via the adjusting groove 408, resulting in its own rotation. This, in turn, causes the fixing strip 403 to rotate around the fixed shaft 402. The fixing strip 403 then rotates the pressing plate 404 at a certain angle, pressing and fixing the crank connecting rod. With the double fixation of clamping block 210 and pressing plate 404, the crank connecting rod is less prone to shaking and deviation. The motor 106 is turned on, driving the rotating shaft 107 and the circular plate 108 to rotate, which in turn drives the crank connecting rod to rotate. The moving component one 101 and the moving component two 102 are adjusted, thereby adjusting the position of the mounting base 103 and the cutting tool 104, so that the cutting tool 104 can process the connecting rod. After processing one end, by loosening the bolt 7, the locking block 5 and the mounting block 202 are pushed to rotate 180 degrees, so that the crank connecting rod can be rotated 180 degrees. After the large and small holes at both ends of the crank connecting rod are converted to the center position of the circular plate 108, the locking block 5 is locked. The cutting tool 104 is used to mill the hole at the center position of the circular plate 108. There is no need to remove the crank connecting rod and reinstall it, which reduces the conversion time between the large and small holes of the crank connecting rod and improves the work efficiency.

[0063] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

[0064] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A crank-connecting rod milling device, comprising: A base (1), on the top surface of which a movable component one (101) and a fixed block (105) are mounted, a movable component two (102) is mounted on the movable component one (101), a mounting seat (103) is mounted on the top surface of the movable component two (102), a cutting tool (104) is mounted on the side of the mounting seat (103), and a circular plate (108) is provided on one side of the fixed block (105). The base (1) is characterized by further comprising: A fixing mechanism (2) is provided above the base (1). The fixing mechanism (2) includes a connecting shaft (201) that is rotatably mounted on the side of the circular plate (108) via a bearing. A mounting block (202) is fixedly mounted on one end of the connecting shaft (201). Two stops (204) are fixedly mounted on the side of the mounting block (202). A moving block (206) is provided inside the mounting block (202). Limiting mechanism (3), the limiting mechanism (3) is set above the base (1), the limiting mechanism (3) includes a T-shaped block (302) set on one side of the stop block (204), and an adjusting rod (303) is fixedly installed on the side of the T-shaped block (302). The extrusion mechanism (4) is located above the base (1). The extrusion mechanism (4) includes a connecting plate (401) fixedly installed on the side of the stop (204). A fixing strip (403) and an extrusion plate (404) are provided on one side of the connecting plate (401).

2. The crank connecting rod milling device according to claim 1, characterized in that, A motor (106) is fixedly installed on the side of the fixed block (105). A rotating shaft (107) is fixedly installed at the output end of the motor (106). One end of the rotating shaft (107) passes through the other side of the fixed block (105) and is fixedly connected to the side of the circular plate (108). The rotating shaft (107) and the fixed block (105) are rotatably connected by a bearing. A counterweight (8) is fixedly installed on the side of the circular plate (108).

3. The crank-connecting rod milling device according to claim 2, characterized in that, The mounting block (202) has a placement groove (203) on its side and a groove (205) inside the mounting block (202). The inner wall of the groove (205) is slidably connected to the side of the moving block (206). Two sliding rods (208) are slidably installed on the top surface of the moving block (206). The two ends of the sliding rods (208) are fixedly connected to the inner wall of the groove (205).

4. A crank-connecting rod milling device according to claim 3, characterized in that, An electric push rod (207) is fixedly installed on the outer wall of the mounting block (202). The upper end of the electric push rod (207) slides through the outer wall of the mounting block (202) and is fixedly connected to the bottom surface of the moving block (206).

5. A crank-connecting rod milling device according to claim 4, characterized in that, A connecting strip (209) is fixedly installed on the top surface of the movable block (206). The upper end of the connecting strip (209) slides through the inner wall of the groove (205) and extends to the top of the mounting block (202). A clamping block (210) is fixedly installed on one end of the connecting strip (209).

6. A crank-connecting rod milling device according to claim 5, characterized in that, The side of the stop block (204) is provided with a T-shaped groove (301), the inner wall of the T-shaped groove (301) is slidably connected to the outer wall of the T-shaped block (302), and a baffle (307) is fixedly installed on the side of the T-shaped block (302).

7. A crank-connecting rod milling device according to claim 6, characterized in that, The inner wall of the T-shaped groove (301) is provided with a through groove one (304), and the inner wall of the groove body (205) is provided with a through groove two (305). The through groove two (305) is connected to the through groove one (304). The side of the moving block (206) is provided with two inclined grooves (306). The outer wall of the adjusting rod (303) is slidably connected to the inner wall of the through groove one (304), the inner wall of the through groove two (305), and the inner wall of the inclined groove (306).

8. A crank-connecting rod milling device according to claim 1, characterized in that, The top surface of the connecting plate (401) is rotatably mounted with a fixed shaft (402) via a bearing. The outer wall of the fixed shaft (402) is fixedly connected to one end of a fixed strip (403). One end of the fixed strip (403) is fixedly connected to the side of the extrusion plate (404). A fixed rod (405) is installed through the fixed strip (403).

9. A crank-connecting rod milling device according to claim 8, characterized in that, An arc-shaped rod (407) is slidably installed through the side of the fixed rod (405). An arc-shaped groove (406) is provided through the connecting plate (401). The inner wall of the arc-shaped groove (406) is fixedly connected to both ends of the arc-shaped rod (407). An adjustment groove (408) is provided on the bottom surface of the T-shaped block (302). The outer wall of the fixed rod (405) is slidably connected to the inner wall of the arc-shaped groove (406) and the inner wall of the adjustment groove (408).

10. A crank connecting rod milling device according to claim 1, characterized in that, The circular plate (108) has two screw holes (6) on its side. The two screw holes (6) are located on both sides of the mounting block (202). A locking block (5) is fixedly installed on the side of the mounting block (202). The locking block (5) is connected to the screw holes (6) by bolts (7).

Images