Multi-angle adjustable milling cutter clamp for machining automobile crankshaft

Abstract

The utility model relates to the technical field of milling cutter clamps, and discloses a multi-angle adjustable milling cutter clamp for machining an automobile crankshaft, which comprises a base, an adjusting mechanism is arranged at the top of the base, and a clamping mechanism is arranged at the top of the adjusting mechanism. The adjusting mechanism comprises a transverse overturning assembly, a longitudinal overturning assembly, a reset assembly and a positioning assembly, the transverse overturning assembly is arranged at the top of the base, the longitudinal overturning assembly is arranged at the top of the transverse overturning assembly, the reset assembly is arranged on the left side of the longitudinal overturning assembly, and the positioning assembly is arranged at the top of the reset assembly. According to the multi-angle adjustable milling cutter clamp for machining the automobile crankshaft, through the arranged adjusting mechanism, a worker can stir the inert sliding rail to slide on the outer ring of the arc-shaped sliding rail to complete transverse turning adjustment of the workbench, and the inert sliding rail is in large-area contact with the arc-shaped sliding rail through friction force generated by the inert sliding rail and the arc-shaped sliding rail; and the inert slide rail can keep the position stable during movement.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter fixture technology, specifically a multi-angle adjustable milling cutter fixture for machining automobile crankshafts. Background Technology

[0002] Crankshaft roughing will widely employ advanced equipment such as CNC lathes, CNC internal milling machines, and CNC turning and broaching machines to perform CNC turning, internal milling, and turning-broaching on the main journals and connecting rod journals, in order to effectively reduce the amount of deformation during crankshaft machining. Crankshaft finishing will widely employ CNC-controlled crankshaft grinding machines to perform precision grinding on the journals. Since milling cutters are required to make holes in the roughing of automotive crankshafts, and milling cutters need to be fixed with fixtures, a multi-angle adjustable milling cutter fixture is required for automotive crankshaft machining.

[0003] According to the patent application published on the patent website, "A multi-angle adjustable milling cutter for machining automobile crankshafts (Publication No.: CN217413171 U; Application No.: 202220917576.4)," the above application addresses the problem that "most of the connecting rods on existing milling cutter fixtures only have a rotation structure in one direction, such as vertical or horizontal, which makes it impossible for operators to adjust the milling cutter fixture in both vertical and horizontal directions at the same time, and thus make it impossible to adjust the milling cutter to the appropriate angle for milling." However, the fixture in the above application cannot guarantee the stability of the milling cutter's position after adjustment, which is inconvenient for operators to use later. Utility Model Content

[0004] The purpose of this invention is to provide a multi-angle adjustable milling cutter fixture for machining automobile crankshafts, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-angle adjustable milling cutter fixture for machining automobile crankshafts, comprising a base, an adjustment mechanism on the top of the base, and a clamping mechanism on the top of the adjustment mechanism.

[0006] The adjustment mechanism includes a horizontal flipping component, a vertical flipping component, a reset component, and a positioning component. The horizontal flipping component is located on the top of the base, the vertical flipping component is located on top of the horizontal flipping component, the reset component is located on the left side of the vertical flipping component, and the positioning component is located on top of the reset component.

[0007] The clamping mechanism includes a driving component, a transmission component, and a clamping component. The driving component is located at the bottom of the longitudinal flipping component, the transmission component is located on the outer ring of the driving component, and the clamping component is located at the top of the transmission component.

[0008] Preferably, the lateral flipping assembly includes a support rod, which is fixedly connected to the left and right sides of the top of the base. A connecting block is fixedly connected to the inner side of the support rod, and an arc-shaped slide rail is fixedly connected to the bottom of the connecting block. An inertial slide rail is slidably connected to the outer ring of the arc-shaped slide rail.

[0009] Preferably, the longitudinal flipping assembly includes a protrusion, which is fixedly connected to the left and right sides of the top of the inertial slide rail. A retaining shaft is rotatably connected inside the top of the protrusion, and a worktable is fixedly connected to the inner side of the retaining shaft.

[0010] Preferably, the reset assembly includes a fixed box, which is fixedly connected to the left side of the protrusion. A slide cylinder is slidably connected inside the fixed box, and a compression spring is fixedly connected to the bottom of the slide cylinder. A movable slide rod is fixedly connected to the left side of the slide cylinder, and the movable slide rod is slidably connected to the left side of the fixed box. A pull rod is fixedly connected to the left side of the movable slide rod.

[0011] Preferably, the positioning component includes a locking block, which is disposed on the left side of the worktable and fixedly connected to the left side of the locking shaft. A turntable is fixedly connected to the left side of the locking block, and a torsion piece is locked inside the outer ring of the locking block. The torsion piece is fixedly connected to the top of the slide cylinder.

[0012] Preferably, the drive assembly includes a drive motor, which is disposed below the worktable. A fixed arm is fixedly connected to the outer ring of the drive motor, and the fixed arm is fixedly connected to the top of the worktable. A rotating shaft is fixedly connected to the top of the drive motor, and the rotating shaft is rotatably connected to the bottom of the worktable. A bevel gear is fixedly connected to the outer ring of the rotating shaft.

[0013] Preferably, the transmission assembly includes a second bevel gear, which meshes with the outer ring of a first bevel gear. A threaded shaft is fixedly connected to the outer side of the second bevel gear. A first support frame is rotatably connected to the outer ring of the threaded shaft located outside the second bevel gear. The first support frame is fixedly connected to the bottom of the worktable. A second support frame is rotatably connected to the outer side of the threaded shaft. The second support frame is fixedly connected to the bottom of the worktable.

[0014] Preferably, the clamping assembly includes a threaded cylinder, which is threadedly connected to the outer ring of a threaded shaft. A second movable slide rod is fixedly connected to the top of the threaded cylinder. The second movable slide rod is slidably connected to the worktable. A limiting piece is fixedly connected to the outer ring of the second movable slide rod. The limiting piece is slidably connected to the top of the worktable. A clamping cylinder is rotatably connected to the outer ring of the second movable slide rod.

[0015] Compared with the prior art, this utility model provides a multi-angle adjustable milling cutter fixture for machining automotive crankshafts, which has the following advantages:

[0016] 1. This multi-angle adjustable milling cutter fixture for machining automotive crankshafts features an adjustable mechanism. Operators can adjust the horizontal rotation of the worktable by sliding an inertial slide rail along the outer ring of an arc-shaped slide rail. The friction generated by the large-area contact between the inertial slide rail and the arc-shaped slide rail ensures the inertial slide rail remains stable during movement. Operators can also adjust the longitudinal angle of the worktable by simply pulling the lever downwards and then rotating the turntable. This allows operators to adjust the tilt angle of the worktable as needed, increasing the device's applicability and making it simple and convenient to use.

[0017] 2. This multi-angle adjustable milling cutter fixture for automobile crankshaft machining, through its clamping mechanism, allows the operator to simply start the drive motor to move multiple clamping cylinders synchronously inward or outward, enabling the device to quickly clamp and fix the milling cutter during use. Furthermore, the equidistantly triangularly arranged clamping cylinders allow the device to fix different types of milling cutters, making it simple and convenient for operators to use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of the present utility model;

[0020] Figure 2 This is an exploded view of the present invention;

[0021] Figure 3 Exploded view of part of the adjustment mechanism structure;

[0022] Figure 4 This is a cross-sectional view of the reset component.

[0023] Figure 5 This is a schematic diagram of the bottom of the clamping mechanism.

[0024] Figure 6 This is a schematic diagram of part of the clamping mechanism;

[0025] Figure 7 This is a schematic diagram showing the interaction between the transmission assembly and the clamping assembly.

[0026] In the diagram: 1. Adjustment mechanism; 11. Lateral tilting assembly; 1101. Support rod; 1102. Connecting block; 1103. Arc-shaped slide rail; 1104. Inertial slide rail; 12. Longitudinal tilting assembly; 1201. Bud bracket; 1202. Locking shaft; 1203. Worktable; 13. Reset assembly; 1301. Fixed box; 1302. Slide cylinder; 1303. Compression spring; 1304. Moving slide rod one; 1305. Pull rod; 14. Positioning assembly; 1401. Locking block; 140 2. Turntable; 1403. Torsion plate; 2. Clamping mechanism; 21. Drive assembly; 2101. Drive motor; 2102. Fixed arm; 2103. Rotating shaft; 2104. Bevel gear one; 22. Transmission assembly; 2201. Bevel gear two; 2202. Threaded rotating shaft; 2203. Support rotating frame one; 2204. Support rotating frame two; 23. Clamping assembly; 2301. Threaded cylinder; 2302. Moving slide rod two; 2303. Limiting plate; 2304. Clamping cylinder; 3. Base. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] This utility model provides a technical solution:

[0030] Example 1

[0031] Combination Figures 1 to 5 A multi-angle adjustable milling cutter fixture for machining automobile crankshafts includes a base 3, an adjustment mechanism 1 on the top of the base 3, and a clamping mechanism 2 on the top of the adjustment mechanism 1.

[0032] The adjustment mechanism 1 includes a horizontal flipping component 11, a vertical flipping component 12, a reset component 13, and a positioning component 14. The horizontal flipping component 11 is located on the top of the base 3, the vertical flipping component 12 is located on the top of the horizontal flipping component 11, the reset component 13 is located on the left side of the vertical flipping component 12, and the positioning component 14 is located on the top of the reset component 13.

[0033] The lateral tilting assembly 11 includes a support rod 1101, which is fixedly connected to the top left and right sides of the base 3. A connecting block 1102 is fixedly connected to the inner side of the support rod 1101, and an arc-shaped slide rail 1103 is fixedly connected to the bottom of the connecting block 1102. An inertial slide rail 1104 is slidably connected to the outer ring of the arc-shaped slide rail 1103. The longitudinal tilting assembly 12 includes a boss 1201, which is fixedly connected to the top left and right sides of the inertial slide rail 1104. A retaining shaft 1202 is rotatably connected to the top of the boss 1201, and a worktable 1203 is fixedly connected to the inner side of the retaining shaft 1202. The reset assembly 13 includes a fixing box 1301, which is fixedly connected to the left side of the boss 1201. Inside the fixed box 1301, a slide cylinder 1302 is slidably connected. A compression spring 1303 is fixedly connected to the bottom of the slide cylinder 1302. A movable slide rod 1304 is fixedly connected to the left side of the slide cylinder 1302. The movable slide rod 1304 is slidably connected to the left side of the fixed box 1301. A pull rod 1305 is fixedly connected to the left side of the movable slide rod 1304. The positioning component 14 includes a locking block 1401. The locking block 1401 is located on the left side of the worktable 1203. The locking block 1401 is fixedly connected to the left side of the locking shaft 1202. A turntable 1402 is fixedly connected to the left side of the locking block 1401. A torsion piece 1403 is locked inside the outer ring of the locking block 1401. The torsion piece 1403 is fixedly connected to the top of the slide cylinder 1302.

[0034] Furthermore, the operator can adjust the horizontal rotation of the worktable 1203 by sliding the inertial slide rail 1104 along the outer ring of the arc-shaped slide rail 1103. The friction generated by the large-area contact between the inertial slide rail 1104 and the arc-shaped slide rail 1103 keeps the inertial slide rail 1104 stable during movement. The operator only needs to push the lever 1305 downward and then turn the turntable 1402 to complete the vertical rotation of the worktable 1203. This allows the operator to adjust the tilt angle of the worktable 1203 as needed, increasing the applicability of the device and making it simple and convenient for operators to use.

[0035] Example 2

[0036] See Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7Furthermore, based on Embodiment 1, the clamping mechanism 2 includes a driving component 21, a transmission component 22, and a clamping component 23. The driving component 21 is disposed at the bottom of the longitudinal flipping component 12, the transmission component 22 is disposed at the outer ring of the driving component 21, and the clamping component 23 is disposed at the top of the transmission component 22.

[0037] Drive assembly 21 includes a drive motor 2101, which is located below the worktable 1203. A fixed arm 2102 is fixedly connected to the outer ring of the drive motor 2101, and the fixed arm 2102 is fixedly connected to the top of the worktable 1203. A rotating shaft 2103 is fixedly connected to the top of the drive motor 2101 and is rotatably connected to the bottom of the worktable 1203. A bevel gear 2104 is fixedly connected to the outer ring of the rotating shaft 2103. Transmission assembly 22 includes a second bevel gear 2201, which meshes with the outer ring of the first bevel gear 2104. A threaded shaft 2202 is fixedly connected to the outer side of the second bevel gear 2201, and the outer ring of the threaded shaft 2202 is located outside the second bevel gear 2201 and rotates. A first support rotating frame 2203 is connected to the bottom of the worktable 1203. A second support rotating frame 2204 is rotatably connected to the outer side of the threaded rotating shaft 2202. The second support rotating frame 2204 is fixedly connected to the bottom of the worktable 1203. The clamping assembly 23 includes a threaded cylinder 2301, which is threadedly connected to the outer ring of the threaded rotating shaft 2202. A second movable slide rod 2302 is fixedly connected to the top of the threaded cylinder 2301. The second movable slide rod 2302 is slidably connected inside the worktable 1203. A limit piece 2303 is fixedly connected to the outer ring of the second movable slide rod 2302. The limit piece 2303 is slidably connected to the top of the worktable 1203. A clamping cylinder 2304 is rotatably connected to the outer ring of the second movable slide rod 2302.

[0038] Furthermore, the operator only needs to start the drive motor 2101 to drive the multiple clamping cylinders 2304 to move inward or outward simultaneously, so that the device can quickly complete the clamping and fixing of the milling cutter during use. At the same time, the clamping cylinders 2304 are arranged in a triangular arrangement at equal intervals, so that the device can fix different types of milling cutters during use. The operation is simple and convenient for the operator to use.

[0039] In actual operation, when this device is used and it is necessary to fix the milling cutter, the operator first places the milling cutter in the middle of the top of the worktable 1203. Then, the operator starts the drive motor 2101. The start of the drive motor 2101 drives the first bevel gear 2104 to rotate through the rotating shaft 2103. The rotation of the first bevel gear 2104 drives the threaded shaft 2202 to rotate through the second bevel gear 2201. The rotation of the threaded shaft 2202 drives a plurality of threaded cylinders 2301 to move inward synchronously. The inward movement of the threaded cylinders 2301 drives the clamping cylinders 2304 to move inward through the second sliding rod 2302. The plurality of clamping cylinders 2304 move inward synchronously and contact the outer ring of the milling cutter to complete the fixing of the milling cutter. At this time, the installation of the milling cutter is completed.

[0040] When it is necessary to adjust the angle of the fixed milling cutter, the operator only needs to slide the inertial slide rail 1104 on the outer ring of the arc slide rail 1103 to flip the milling cutter on the top of the worktable 1203 left and right to complete the lateral angle adjustment of the milling cutter.

[0041] When the milling cutter needs to be longitudinally rotated for angle adjustment, the operator first moves the pull rod 1305 downward. The downward movement of the pull rod 1305 drives the torsion plate 1403 downward through the sliding rod 1304 and the sliding cylinder 1302. The torsion plate 1403 moves downward and retracts into the fixed box 1301, disengaging from the locking block 1401. Then, the operator rotates the turntable 1402. The rotation of the turntable 1402 drives the locking block 1401 to rotate. The rotation of the locking block 1401 drives the worktable 1203 to rotate through the locking shaft 1202. After the worktable 1203 is rotated to the appropriate angle, the limit on the pull rod 1305 is released. At this time, the sliding cylinder 1302 drives the torsion plate 1403 to move upward under the action of the compression spring 1303. The torsion plate 1403 moves upward and engages in the outer ring of the locking block 1401. This completes the positioning of the worktable 1203 and the longitudinal rotation adjustment of the worktable 1203.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A multi-angle adjustable milling cutter fixture for machining automobile crankshafts, comprising a base (3), characterized in that: The base (3) is provided with an adjustment mechanism (1) at its top, and the adjustment mechanism (1) is provided with a clamping mechanism (2) at its top. The adjustment mechanism (1) includes a horizontal flipping component (11), a vertical flipping component (12), a reset component (13), and a positioning component (14). The horizontal flipping component (11) is located on the top of the base (3), the vertical flipping component (12) is located on the top of the horizontal flipping component (11), the reset component (13) is located on the left side of the vertical flipping component (12), and the positioning component (14) is located on the top of the reset component (13). The clamping mechanism (2) includes a drive assembly (21), a transmission assembly (22) and a clamping assembly (23). The drive assembly (21) is located at the bottom of the longitudinal flipping assembly (12), the transmission assembly (22) is located on the outer ring of the drive assembly (21), and the clamping assembly (23) is located on the top of the transmission assembly (22).

2. The multi-angle adjustable milling cutter fixture for machining automotive crankshafts according to claim 1, characterized in that: The lateral flipping assembly (11) includes a support rod (1101), which is fixedly connected to the top left and right sides of the base (3). A connecting block (1102) is fixedly connected to the inner side of the support rod (1101), and an arc-shaped slide rail (1103) is fixedly connected to the bottom of the connecting block (1102). An inertial slide rail (1104) is slidably connected to the outer ring of the arc-shaped slide rail (1103).

3. The multi-angle adjustable milling cutter fixture for machining automotive crankshafts according to claim 1, characterized in that: The longitudinal flipping assembly (12) includes a boss (1201), which is fixedly connected to the top left and right sides of the inertial slide rail (1104). A retaining shaft (1202) is rotatably connected to the top of the boss (1201), and a worktable (1203) is fixedly connected to the inner side of the retaining shaft (1202).

4. The multi-angle adjustable milling cutter fixture for machining automotive crankshafts according to claim 1, characterized in that: The reset assembly (13) includes a fixed box (1301), which is fixedly connected to the left side of the protrusion (1201). A slide cylinder (1302) is slidably connected inside the fixed box (1301), and a compression spring (1303) is fixedly connected to the bottom of the slide cylinder (1302).

5. A multi-angle adjustable milling cutter fixture for machining automotive crankshafts according to claim 4, characterized in that: A movable slide rod (1304) is fixedly connected to the left side of the slide cylinder (1302). The movable slide rod (1304) is slidably connected to the left side of the fixed box (1301). A pull rod (1305) is fixedly connected to the left side of the movable slide rod (1304).

6. The multi-angle adjustable milling cutter fixture for machining automotive crankshafts according to claim 1, characterized in that: The positioning component (14) includes a locking block (1401), which is located on the left side of the worktable (1203). The locking block (1401) is fixedly connected to the left side of the locking shaft (1202). A turntable (1402) is fixedly connected to the left side of the locking block (1401). A twisting piece (1403) is locked inside the outer ring of the locking block (1401). The twisting piece (1403) is fixedly connected to the top of the slide cylinder (1302).

7. A multi-angle adjustable milling cutter fixture for machining automotive crankshafts according to claim 1, characterized in that: The drive assembly (21) includes a drive motor (2101), which is located below the worktable (1203). A fixed arm (2102) is fixedly connected to the outer ring of the drive motor (2101), and the fixed arm (2102) is fixedly connected to the top of the worktable (1203). A rotating shaft (2103) is fixedly connected to the top of the drive motor (2101), and the rotating shaft (2103) is rotatably connected to the bottom of the worktable (1203). A bevel gear (2104) is fixedly connected to the outer ring of the rotating shaft (2103).

8. A multi-angle adjustable milling cutter fixture for machining automotive crankshafts according to claim 1, characterized in that: The transmission assembly (22) includes a second bevel gear (2201), which meshes with the outer ring of a first bevel gear (2104). A threaded shaft (2202) is fixedly connected to the outer side of the second bevel gear (2201), and a support frame (2203) is rotatably connected to the outer ring of the threaded shaft (2202) located outside the second bevel gear (2201).

9. A multi-angle adjustable milling cutter fixture for machining automotive crankshafts according to claim 8, characterized in that: The first support frame (2203) is fixedly connected to the bottom of the workbench (1203), and the second support frame (2204) is rotatably connected to the outside of the threaded shaft (2202). The second support frame (2204) is fixedly connected to the bottom of the workbench (1203).

10. A multi-angle adjustable milling cutter fixture for machining automotive crankshafts according to claim 1, characterized in that: The clamping assembly (23) includes a threaded cylinder (2301), which is threadedly connected to the outer ring of a threaded shaft (2202). A movable slide rod (2302) is fixedly connected to the top of the threaded cylinder (2301). The movable slide rod (2302) is slidably connected to the worktable (1203). A limiting piece (2303) is fixedly connected to the outer ring of the movable slide rod (2302). The limiting piece (2303) is slidably connected to the top of the worktable (1203). A clamping cylinder (2304) is rotatably connected to the outer ring of the movable slide rod (2302).

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