Self-centering milling machine device for lugs of long and short shaft forks
By designing a self-centering milling machine device, and utilizing the cooperation of the fork and tail machining mechanisms and clamping fixtures, the problem of inaccurate positioning of the center holes of long and short shaft forks was solved, achieving accurate positioning and stable clamping of the shaft forks, and improving machining quality.
Patent Information
- Application Number
- CN202520067019.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing machining equipment is inaccurate in positioning the center holes of long and short shaft forks, which affects the machining quality.
A self-centering milling and punching device for the ears of long and short shaft forks was designed, including fork and tail machining mechanisms, clamping fixtures and positioning components. Through the cooperation of the fork clamping fixture and the tail clamping fixture, self-centering positioning is achieved by using V-shaped positioning blocks and positioning retaining springs. Combined with the action of the push cylinder and the hydraulic cylinder, the accurate positioning of the shaft fork is ensured.
It achieves accurate positioning and stable clamping of the shaft fork, improving the accuracy and quality of the machining center hole.
Smart Images
Figure CN223762658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a self-centering milling and punching device for the ear of a long and short shaft fork, belonging to the field of transmission shafts. Background Technology
[0002] Long and short shaft forks are important components of drive shafts. During the processing of finished products, in order to facilitate positioning, it is required that the fork and tail of the shaft fork have center holes. Subsequent processing of the shaft fork is based on these two center holes for positioning. Therefore, the accuracy of the center holes has a significant impact on the processing quality of the shaft fork products. Before processing the center holes, it is necessary to position them. Currently, most processing equipment does not position them accurately. Utility Model Content
[0003] The purpose of this utility model is to overcome the above-mentioned deficiencies in the existing technology and to provide a self-centering milling machine device for the long and short shaft fork ears with a reasonable structural design.
[0004] The technical solution adopted by this utility model to solve the above problems is as follows: The self-centering milling and punching device for the long and short shaft fork ears includes a frame, and its structural feature is that it also includes a fork processing mechanism, a tail processing mechanism, a fork clamping fixture and a tail clamping fixture mounted on the frame. The fork processing mechanism and the tail processing mechanism are respectively located at both ends of the frame, and the fork clamping fixture and the tail clamping fixture are located between the fork processing mechanism and the tail processing mechanism. The fork clamping fixture cooperates with the fork processing mechanism, and the tail clamping fixture cooperates with the tail processing mechanism.
[0005] The fork machining mechanism includes a fork base plate, a fork base, a fork positioning assembly, a lathe tool, and a fork center drill. The fork base plate is mounted on the frame, the fork base is mounted on the fork base plate, and the fork positioning assembly, the lathe tool, and the fork center drill are all mounted on the fork base.
[0006] The tail machining mechanism includes a tail base plate, a tail base, a tail push assembly, a face milling cutter, and a tail center drill. The tail base plate is mounted on a frame, the tail base is mounted on the tail base plate, and the tail push assembly, face milling cutter, and tail center drill are all mounted on the tail base.
[0007] Furthermore, the fork positioning assembly includes a V-shaped positioning block, a positioning block slide, a positioning center block, and a positioning clamping spring. The positioning block slide is mounted on the fork base, the V-shaped positioning block is mounted on the positioning block slide, the positioning center block is mounted on the V-shaped positioning block, and the two ends of the positioning clamping spring abut against the positioning center block and the fork base, respectively.
[0008] Furthermore, the tail push assembly includes a push cylinder and a push top block, the cylinder barrel of the push cylinder is mounted on the tail base, and the push top block is mounted on the piston rod of the push cylinder.
[0009] Further, the fork clamping fixture includes a fork clamping base, a fork clamping slide, a fork clamping swing arm, a fork clamping swing shaft, a fork clamping hydraulic cylinder, a fork clamping push-pull block, a fork clamping fixed clamping plate, a fork clamping swing clamping plate, a fork clamping swing pin, and a fork clamping auxiliary bracket. The fork clamping base is mounted on the frame, the fork clamping slide is slidably mounted on the fork clamping base, and the middle part of the fork clamping swing arm is oscillatingly mounted on the fork clamping base via the fork clamping swing shaft. The cylinder of the clamping hydraulic cylinder is mounted on the fork clamping base. The piston rod of the fork clamping hydraulic cylinder is connected to the fork clamping push-pull block. The fork clamping push-pull block is connected to one end of the fork clamping swing rod. The other end of the fork clamping swing rod is connected to the fork clamping slide. The fork clamping fixing plate is fixed on one fork clamping slide. The fork clamping swing plate is oscillatingly mounted on another fork clamping slide via a fork clamping swing pin. The fork clamping auxiliary bracket is mounted on the fork clamping base.
[0010] Further, the tail clamping fixture includes a tail clamping base, a tail clamping slide, a tail clamping swing arm, a tail clamping swing shaft, a tail clamping hydraulic cylinder, a tail clamping push-pull block, a tail clamping fixed clamping plate, a tail clamping swing clamping plate, a tail clamping swing pin, and a tail clamping auxiliary bracket. The tail clamping base is mounted on the frame, the tail clamping slide is slidably mounted on the tail clamping base, and the middle part of the tail clamping swing arm is oscillatingly mounted on the tail clamping base via the tail clamping swing shaft. The cylinder of the clamping hydraulic cylinder is mounted on the tail clamping base. The piston rod of the tail clamping hydraulic cylinder is connected to the tail clamping push-pull block. The tail clamping push-pull block is connected to one end of the tail clamping swing rod. The other end of the tail clamping swing rod is connected to the tail clamping slide. The tail clamping fixing clamp is fixed on one tail clamping slide. The tail clamping swing clamp is oscillatingly mounted on another tail clamping slide via a tail clamping swing pin. The tail clamping auxiliary bracket is mounted on the tail clamping base.
[0011] Furthermore, the fork positioning component and the tail push component cooperate in action, the sleeve cutting tool and the face milling cutter cooperate in action, and the fork center drill and the tail center drill cooperate in action.
[0012] Compared with the prior art, this utility model has the following advantages: the fork is positioned by the fork clamping fixture and the tail clamping fixture, the push cylinder pushes the fork forward until the fork part hits the fork positioning component to achieve self-centering, and then the fork part and tail clamp the fork part and the fork part clamp by the fork clamping slide and the tail clamping slide. When machining the conical surface, the fork positioning component retracts.
[0013] The inner side of the fork is positioned by a positioning centering block to center the two ears of the workpiece. The V-shaped positioning block uses a V-shaped structure to position the length of the fork, eliminating the influence of the fork's cutting edge. The semi-spherical structure of the fork clamping swing pin and the tail clamping swing pin can ensure that the four clamping contact surfaces can fully contact the fork and tail, making the clamping more stable. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural schematic diagram of the self-centering milling machine device for the long and short shaft fork ears according to an embodiment of this utility model.
[0015] Figure 2 This is a three-dimensional structural schematic diagram of the self-centering milling and punching device for the long and short shaft fork ears according to an embodiment of this utility model.
[0016] Figure 3 This is a three-dimensional structural diagram of the fork positioning component according to an embodiment of the present utility model.
[0017] Figure 4 This is a cross-sectional structural schematic diagram of the fork positioning component according to an embodiment of the present utility model.
[0018] Figure 5 This is an exploded structural diagram of the fork positioning component according to an embodiment of the present invention.
[0019] Figure 6 This is a three-dimensional structural diagram of the fork clamping fixture according to an embodiment of the present utility model.
[0020] Figure 7 This is a cross-sectional structural diagram of the fork clamping fixture according to an embodiment of the present utility model.
[0021] Figure 8 This is a three-dimensional structural diagram of the tail clamping fixture according to an embodiment of the present utility model.
[0022] Figure 9 This is a cross-sectional structural diagram of the tail clamping fixture according to an embodiment of the present invention.
[0023] Figure 10 This is a schematic diagram of the front view of the machined rear axle fork according to an embodiment of the present invention.
[0024] In the diagram: 1. Fork machining mechanism; 2. Tail machining mechanism; 3. Fork clamping fixture; 4. Tail clamping fixture; 5. Frame; 6. Shaft fork.
[0025] Fork base plate 11, fork base 12, fork positioning assembly 13, fork tool sleeve 14, fork center drill 15.
[0026] Tail base plate 21, tail base 22, tail push assembly 23, face milling cutter 24, tail center drill 25
[0027] V-shaped positioning block 131, positioning block slide 132, positioning centering block 133, positioning clamping spring 134.
[0028] Push cylinder 231, push top block 232
[0029] Fork clamping base 31, fork clamping slide 32, fork clamping swing arm 33, fork clamping swing shaft 34, fork clamping hydraulic cylinder 35, fork clamping push-pull block 36, fork clamping fixing clamping plate 37, fork clamping swing clamping plate 38, fork clamping swing pin 39, fork clamping auxiliary bracket 310.
[0030] Tail clamping base 41, tail clamping slide 42, tail clamping swing rod 43, tail clamping swing shaft 44, tail clamping hydraulic cylinder 45, tail clamping push-pull block 46, tail clamping fixed clamping plate 47, tail clamping swing clamping plate 48, tail clamping swing pin 49, tail clamping auxiliary bracket 410. Detailed Implementation
[0031] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.
[0032] Example
[0033] See Figures 1 to 10 As shown in the accompanying drawings, the structures, proportions, sizes, etc., depicted in this specification are merely for illustrative purposes to aid those skilled in the art and to provide a clear understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the use of terms such as "upper," "lower," "left," "right," "middle," and "one" in this specification is solely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0034] The self-centering milling and punching device for the long and short shaft fork lugs in this embodiment includes a frame 5, and a fork processing mechanism 1, a tail processing mechanism 2, a fork clamping fixture 3, and a tail clamping fixture 4 mounted on the frame 5. The fork processing mechanism 1 and the tail processing mechanism 2 are located at both ends of the frame 5, and the fork clamping fixture 3 and the tail clamping fixture 4 are located between the fork processing mechanism 1 and the tail processing mechanism 2. The fork clamping fixture 3 cooperates with the fork processing mechanism 1, and the tail clamping fixture 4 cooperates with the tail processing mechanism 2.
[0035] The fork processing mechanism 1 in this embodiment includes a fork base plate 11, a fork base 12, a fork positioning component 13, a lathe tool 14, and a fork center drill 15. The fork base plate 11 is mounted on the frame 5, the fork base 12 is mounted on the fork base plate 11, and the fork positioning component 13, the lathe tool 14, and the fork center drill 15 are all mounted on the fork base 12.
[0036] The tail processing mechanism 2 in this embodiment includes a tail base plate 21, a tail base 22, a tail push assembly 23, a face milling cutter 24, and a tail center drill 25. The tail base plate 21 is mounted on the frame 5, the tail base 22 is mounted on the tail base plate 21, and the tail push assembly 23, the face milling cutter 24, and the tail center drill 25 are all mounted on the tail base 22.
[0037] In this embodiment, the fork positioning component 13 cooperates with the tail pushing component 23, the sleeve cutting tool 14 cooperates with the face milling cutter 24, and the fork center drill 15 cooperates with the tail center drill 25.
[0038] The fork positioning assembly 13 in this embodiment includes a V-shaped positioning block 131, a positioning block slide 132, a positioning center block 133, and a positioning clamping spring 134. The positioning block slide 132 is mounted on the fork base 12, the V-shaped positioning block 131 is mounted on the positioning block slide 132, the positioning center block 133 is mounted on the V-shaped positioning block 131, and the two ends of the positioning clamping spring 134 abut against the positioning center block 133 and the fork base 12, respectively.
[0039] The tail push assembly 23 in this embodiment includes a push cylinder 231 and a push top block 232. The cylinder of the push cylinder 231 is mounted on the tail base 22, and the push top block 232 is mounted on the piston rod of the push cylinder 231.
[0040] The fork clamping fixture 3 in this embodiment includes a fork clamping base 31, a fork clamping slide 32, a fork clamping swing rod 33, a fork clamping swing shaft 34, a fork clamping hydraulic cylinder 35, a fork clamping push-pull block 36, a fork clamping fixed clamping plate 37, a fork clamping swing clamping plate 38, a fork clamping swing pin 39, and a fork clamping auxiliary bracket 310. The fork clamping fixed clamping plate 37 and the fork clamping swing clamping plate 38 are arranged in a planar structure.
[0041] In this embodiment, the fork clamping base 31 is mounted on the frame 5, the fork clamping slide 32 is slidably mounted on the fork clamping base 31, the middle part of the fork clamping swing rod 33 is oscillatingly mounted on the fork clamping base 31 via the fork clamping swing shaft 34, the cylinder of the fork clamping hydraulic cylinder 35 is mounted on the fork clamping base 31, the piston rod of the fork clamping hydraulic cylinder 35 is connected to the fork clamping push-pull block 36, the fork clamping push-pull block 36 is connected to one end of the fork clamping swing rod 33, the other end of the fork clamping swing rod 33 is connected to the fork clamping slide 32, the fork clamping fixing clamp 37 is fixed on one fork clamping slide 32, the fork clamping swing clamp 38 is oscillatingly mounted on another fork clamping slide 32 via the fork clamping swing pin 39, and the fork clamping auxiliary bracket 310 is mounted on the fork clamping base 31.
[0042] The tail clamping fixture 4 in this embodiment includes a tail clamping base 41, a tail clamping slide 42, a tail clamping swing rod 43, a tail clamping swing shaft 44, a tail clamping hydraulic cylinder 45, a tail clamping push-pull block 46, a tail clamping fixed clamping plate 47, a tail clamping swing clamping plate 48, a tail clamping swing pin 49, and a tail clamping auxiliary bracket 410. The tail clamping fixed clamping plate 47 and the tail clamping swing clamping plate 48 are arranged in a V-shaped structure.
[0043] In this embodiment, the tail clamping base 41 is mounted on the frame 5, the tail clamping slide 42 is slidably mounted on the tail clamping base 41, the middle part of the tail clamping swing rod 43 is swayed and mounted on the tail clamping base 41 via the tail clamping swing shaft 44, the cylinder of the tail clamping hydraulic cylinder 45 is mounted on the tail clamping base 41, the piston rod of the tail clamping hydraulic cylinder 45 is connected to the tail clamping push-pull block 46, the tail clamping push-pull block 46 is connected to one end of the tail clamping swing rod 43, the other end of the tail clamping swing rod 43 is connected to the tail clamping slide 42, the tail clamping fixing clamp 47 is fixed on one tail clamping slide 42, the tail clamping swing clamp 48 is swayed and mounted on another tail clamping slide 42 via the tail clamping swing pin 49, and the tail clamping auxiliary bracket 410 is mounted on the tail clamping base 41.
[0044] Specifically, during operation, the self-centering milling and punching device for the long and short shaft forks places the shaft fork 6 on the fork clamping auxiliary bracket 310 and the tail clamping auxiliary bracket 410, simultaneously locking the fork of the shaft fork 6 into the V-groove of the V-shaped positioning block 131. The tail of the shaft fork 6 is pushed by the pushing cylinder 231 and the pushing top block 232, pressing the fork against the V-groove of the V-shaped positioning block 131 (i.e., the predetermined position). Simultaneously, the positioning centering block 133 centers the fork of the shaft fork 6. The positioning and clamping spring 134 compensates for the differences between different shaft forks 6. The clamping action of the fork clamping fixture 3 and the tail clamping fixture 4 is then performed as follows:
[0045] When the fork clamping fixture 3 clamps the fork of the shaft fork 6, the fork clamping hydraulic cylinder 35 pulls the fork clamping push-pull block 36. The fork clamping push-pull block 36 moves down, causing the fork clamping swing rod 33 to swing along the fork clamping swing shaft 34. At the same time, the fork clamping swing rod 33 causes the fork clamping slide block 32 to slide on the fork clamping base 31. The fork is clamped by the two fork clamping swing clamps 38.
[0046] When the tail clamping clamp 4 clamps the tail of the fork 6, the tail clamping hydraulic cylinder 45 pulls the tail clamping push-pull block 46. The tail clamping push-pull block 46 moves down, causing the tail clamping swing rod 43 to swing along the tail clamping swing shaft 44. At the same time, the tail clamping swing rod 43 moves the tail clamping slide block 42 to slide on the tail clamping base 41. The fork is clamped by the two tail clamping swing clamps 48.
[0047] It can first pre-position the shaft fork 6 and then clamp it. The fork processing mechanism 1, the tail processing mechanism 2, the fork clamping fixture 3, and the tail clamping fixture 4 can move along the X direction on the frame 5. The fork base 12 and the tail base 22 can move along the Y direction on the fork base plate 11 and the tail base plate 21, respectively.
[0048] During the centering and clamping process, the fork clamping fixture 3 may deviate from the predetermined position. The deviation can be eliminated by moving the V-shaped positioning block 131. The fork base 12 and the tail base 22 move on the fork base plate 11 and the tail base plate 21, respectively. The conical surfaces at both ends of the shaft fork 6 are machined by the sleeve cutting tool 14 and the face milling cutter 24, respectively. The center holes at both ends of the shaft fork 6 are machined by the fork center drill 15 and the tail center drill 25, respectively.
[0049] "Long and short shaft forks" refers to both long and short shaft forks, meaning that this milling and punching machine can be used for both long and short shaft fork milling and punching.
[0050] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.
Claims
1. A long and short axis forked ear self-centering milling machine device, comprising a frame (5), characterized in that: Also included are a fork processing mechanism (1), a tail processing mechanism (2), a fork clamping clamp (3), and a tail clamping clamp (4) installed on the rack (5), the fork processing mechanism (1) and the tail processing mechanism (2) are located at both ends of the rack (5) respectively, the fork clamping clamp (3) and the tail clamping clamp (4) are located between the fork processing mechanism (1) and the tail processing mechanism (2), and the fork clamping clamp (3) cooperates with the fork processing mechanism (1), and the tail clamping clamp (4) cooperates with the tail processing mechanism (2); The fork processing mechanism (1) comprises a fork base plate (11), a fork base (12), a fork positioning assembly (13), a sleeve tool (14), and a fork center drill (15), the fork base plate (11) is installed on the rack (5), the fork base (12) is installed on the fork base plate (11), and the fork positioning assembly (13), the sleeve tool (14), and the fork center drill (15) are all installed on the fork base (12); The tail processing mechanism (2) comprises a tail base plate (21), a tail base (22), a tail pushing assembly (23), a face milling cutter (24), and a tail center drill (25), the tail base plate (21) is installed on the rack (5), the tail base (22) is installed on the tail base plate (21), and the tail pushing assembly (23), the face milling cutter (24), and the tail center drill (25) are all installed on the tail base (22).
2. The long and short shaft forked ear self-centering milling and marking machine device according to claim 1, characterized in that: The fork positioning assembly (13) comprises a V-shaped positioning block (131), a positioning block sliding seat (132), a positioning centering block (133), and a positioning pressing spring (134), the positioning block sliding seat (132) is installed on the fork base (12), the V-shaped positioning block (131) is installed on the positioning block sliding seat (132), the positioning centering block (133) is installed on the V-shaped positioning block (131), and the two ends of the positioning pressing spring (134) are respectively in abutment with the positioning centering block (133) and the fork base (12).
3. The long and short axle fork ear self-centering milling and marking machine device according to claim 1, characterized in that: The tail pushing assembly (23) comprises a pushing cylinder (231) and a pushing top block (232), the cylinder barrel of the pushing cylinder (231) is installed on the tail base (22), and the pushing top block (232) is installed on the piston rod of the pushing cylinder (231).
4. The long and short axle fork ear self-centering milling and marking machine device according to claim 1, characterized in that: The fork clamping clamp (3) comprises a fork clamping base (31), a fork clamping sliding seat (32), a fork clamping swing rod (33), a fork clamping swing shaft (34), a fork clamping hydraulic cylinder (35), a fork clamping push-pull block (36), a fork clamping fixed clamping plate (37), a fork clamping swing clamping plate (38), a fork clamping swing pin (39) and a fork clamping auxiliary support (310), the fork clamping base (31) is installed on the rack (5), the fork clamping sliding seat (32) is slidingly installed on the fork clamping base (31), the middle part of the fork clamping swing rod (33) is swingly installed on the fork clamping base (31) through the fork clamping swing shaft (34), the cylinder barrel of the fork clamping hydraulic cylinder (35) is installed on the fork clamping base (31), the piston rod of the fork clamping hydraulic cylinder (35) is connected with the fork clamping push-pull block (36), the fork clamping push-pull block (36) is connected with one end of the fork clamping swing rod (33), the other end of the fork clamping swing rod (33) is connected with the fork clamping sliding seat (32), the fork clamping fixed clamping plate (37) is fixed on one fork clamping sliding seat (32), the fork clamping swing clamping plate (38) is swingly installed on the other fork clamping sliding seat (32) through the fork clamping swing pin (39), and the fork clamping auxiliary support (310) is installed on the fork clamping base (31).
5. The long and short axle fork ear self-centering milling and marking machine device according to claim 1, characterized in that: The tail clamping clamp (4) comprises a tail clamping base (41), a tail clamping sliding seat (42), a tail clamping swing rod (43), a tail clamping swing shaft (44), a tail clamping hydraulic cylinder (45), a tail clamping push-pull block (46), a tail clamping fixed clamping plate (47), a tail clamping swing clamping plate (48), a tail clamping swing pin (49) and a tail clamping auxiliary support (410), the tail clamping base (41) is installed on the rack (5), the tail clamping sliding seat (42) is slidingly installed on the tail clamping base (41), the middle part of the tail clamping swing rod (43) is swingly installed on the tail clamping base (41) through the tail clamping swing shaft (44), the cylinder barrel of the tail clamping hydraulic cylinder (45) is installed on the tail clamping base (41), the piston rod of the tail clamping hydraulic cylinder (45) is connected with the tail clamping push-pull block (46), the tail clamping push-pull block (46) is connected with one end of the tail clamping swing rod (43), the other end of the tail clamping swing rod (43) is connected with the tail clamping sliding seat (42), the tail clamping fixed clamping plate (47) is fixed on one tail clamping sliding seat (42), the tail clamping swing clamping plate (48) is swingly installed on the other tail clamping sliding seat (42) through the tail clamping swing pin (49), and the tail clamping auxiliary support (410) is installed on the tail clamping base (41).
6. The long and short axle fork ear self-centering milling and marking machine device according to claim 1, characterized in that: The fork positioning assembly (13) and the tail pushing assembly (23) act cooperatively, the sleeve tool (14) and the face milling cutter (24) act cooperatively, and the fork center drill (15) and the tail center drill (25) act cooperatively.