Eccentric bolt machining device

Abstract

The utility model relates to the technical field of machining equipment, in particular to an eccentric bolt machining device. Comprising a workbench, a clamping assembly, a drilling assembly and an adjusting assembly, the clamping assembly is composed of a pair of clamping blocks capable of moving in the Y direction and used for stably clamping eccentric bolts of different specifications, the drilling assembly is provided with a drill bit corresponding to a center hole and used for accurately drilling, and the adjusting assembly is used for adjusting the position of the drill bit; through the X-direction adjusting module, the Y-direction adjusting module and the Z-direction adjusting module, manual errors are eliminated, the drilling precision is improved, the device is further provided with a detachable chuck, universality is enhanced, a blocking part protection structure is arranged, workpiece damage is prevented, and the flexibility and adaptability of the device are further improved through the design of a movable rack.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment technology, and in particular to an eccentric bolt processing device. Background Technology

[0002] Eccentric bolts, as fasteners with asymmetrical axes, are widely used in automotive suspension systems, construction machinery, and other applications requiring eccentric connections. Machining the center hole in an eccentric bolt is a crucial process, as its accuracy directly affects the bolt's accuracy and stability during assembly and use. Traditionally, fixed fixtures are used to hold the eccentric bolts, and drilling is performed manually. Operators must first roughly adjust the bolt's position on the fixture based on experience, then manually start the drilling equipment, controlling the drill bit's feed and position by visual observation and feel. When dealing with eccentric bolts of different sizes, the entire fixture often needs to be changed, making the process cumbersome and time-consuming.

[0003] However, this traditional processing method has many drawbacks. First, the fixed tooling has poor versatility, making it difficult to adapt to the processing needs of various eccentric bolt specifications. Frequent tooling changes not only reduce production efficiency but also increase production costs. Second, manual operation is greatly affected by subjective factors, making it difficult to ensure the high consistency and accuracy of drilling positions, resulting in unstable machining accuracy of the center hole and affecting the quality of the eccentric bolt. Third, the equipment lacks an effective protection mechanism. When adjusting the drilling position, operational errors can easily cause excessive movement of the equipment, thereby damaging the tooling fixtures and the eccentric bolt being processed. Therefore, there is an urgent need for an eccentric bolt processing device to solve the above problems. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides an eccentric bolt processing device, which solves the technical problems of poor adaptability and low drilling accuracy of existing eccentric bolt processing devices.

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

[0006] An eccentric bolt machining apparatus for drilling a center hole in the nut of an eccentric bolt, comprising: a worktable, wherein the worktable is provided with:

[0007] A clamping assembly, comprising: a pair of clamping blocks, the clamping blocks being movable and adjustable in the Y direction, the pair of clamping blocks being used to securely limit the eccentric bolt on the worktable;

[0008] A drilling assembly, the drilling assembly comprising: a drill bit corresponding to a center hole, the drill bit being used to drill the center hole;

[0009] An adjusting assembly is arranged in the X direction and spaced apart from the clamping assembly, the drilling assembly is mounted on the adjusting assembly, and the adjusting assembly is used to adjust the position of the drill bit.

[0010] Based on the above structure, the principle of the eccentric bolt machining device is: first, according to the size of the eccentric bolt, adjust the position of the pair of clamping blocks in the Y direction, so that the clamping blocks gradually approach and clamp the eccentric bolt, and stably limit it on the workbench; when the eccentric bolt is fixed, start the drilling assembly, automatically adjust the position of the drill bit through the adjusting assembly and feed downward, and drill the nut of the eccentric bolt; after drilling, the drill bit is reset, the position of the clamping block is adjusted, and the processed eccentric bolt is taken out, and the center hole is processed. The clamping assembly composed of a pair of clamping blocks movably adjusted in the Y direction can stably limit the eccentric bolt on the workbench. The movable adjustment makes the device adapt to eccentric bolts of different specifications, ensures the stability of the position of the eccentric bolt during drilling, and prevents the eccentric bolt from moving and affecting the drilling accuracy; the adjusting assembly can adjust the position of the drill bit, corresponding to eccentric bolts of different specifications, the adjusting assembly adjusts the drill bit to the appropriate position for drilling according to the preset path, improves the accuracy and consistency of drilling, and ensures the machining precision.

[0011] Further, the eccentric bolt machining device in the application further comprises: a base, a first driving device, the base is mounted on the workbench, the base is provided with a groove part extending along the Y direction, the groove part is provided with a guide rod, the guide rod is provided with a sliding block, a pair of clamping blocks are oppositely arranged on the base, and the pair of clamping blocks are connected with the base and the sliding block respectively, and the first driving device is used to drive the clamping blocks connected with the sliding block to move and adjust in the Y direction. As a preferred scheme of the application, the guide rod provides a guiding action for the movement of the sliding block, so that the clamping blocks connected with the sliding block can always move in the Y direction, ensuring the linearity and stability of the movement of the clamping blocks, thereby improving the positioning accuracy of the eccentric bolt and avoiding the eccentric bolt from being clamped unstably due to the deviation of the clamping blocks during movement.

[0012] Further, the eccentric bolt machining device provided in the application, the clamp block comprises a clamp seat, a set of clamp heads matched with the shape of the eccentric bolt, and a set of clamp heads which are detachably mounted on the clamp seat and are arranged at intervals in the X direction. An arc-shaped part is arranged on the side of the clamp head close to the clamp seat. The upper and lower ends of the arc-shaped part are respectively provided with convex parts which are arranged along the extension direction of the arc-shaped part. The side of the clamp seat close to the clamp head is provided with a mounting groove part corresponding to the arc-shaped part, which is used for accommodating the arc-shaped part. The side wall of the mounting groove part is provided with a limiting part corresponding to the convex part. When the clamp head is mounted on the clamp seat, the convex part and the limiting part form a sliding fit to realize axial positioning. As a preferred scheme of the application, the clamp head of the eccentric bolt machining device is detachably mounted on the clamp seat. This design enables the clamp head to be replaced according to the shape specifications of different eccentric bolts, thereby improving the versatility and adaptability of the device. The side of the clamp head close to the clamp seat is provided with an arc-shaped part, and the side of the clamp seat close to the clamp head is provided with a mounting groove part corresponding to the arc-shaped part. The mounting groove part is used for accommodating the arc-shaped part. This structural design facilitates the clamp head mounting and dismounting work of the operator. When the clamp head needs to be dismounted from the clamp seat, the arc-shaped part on the clamp head is rotated out of the side opening of the mounting groove part. When the arc-shaped part is completely removed from the mounting groove part, the clamp head and the clamp seat can be separated. When the clamp head needs to be mounted on the clamp seat, the end of the arc-shaped part on the clamp head is aligned with the side opening of the mounting groove part, and the clamp head is rotated. When the arc-shaped part is completely accommodated in the mounting groove part, the mounting is completed. The convex part and the limiting part cooperate to realize axial positioning, so that the position of the clamp head on the clamp seat is stable, the axial movement of the clamp head during use is prevented, the stability of the eccentric bolt when clamped is ensured, the positioning accuracy of the eccentric bolt is improved, and the subsequent drilling operation is facilitated.

[0013] Further, the eccentric bolt machining device in the application, the adjusting assembly comprises: an X-direction moving module, the X-direction moving module is installed on the workbench, the X-direction moving module comprises: a pair of first tracks, a pair of first tracks are installed on the workbench in Y direction, a group of first sliders are slidably installed on a pair of first tracks, a first mounting plate is installed on the first slider, the first mounting plate is adjusted and moved in X direction by the first linear driving device; the first mounting plate is provided with a Y-direction moving module, the Y-direction moving module comprises: a pair of second tracks, a pair of second tracks are installed on the first mounting plate in X direction, a second slider is slidably installed on a pair of second tracks, a second mounting plate is installed on the second slider, the second mounting plate is adjusted and arranged to move in Y direction by the second linear driving device, the second mounting plate is provided with a Z-direction moving module, the Z-direction moving module comprises: a stand, a screw rod, a moving block and a second driving device, the stand is installed on the second mounting plate, the screw rod is vertically installed on the stand, the moving block is sleeved on the screw rod, the moving block is threadedly connected with the screw rod, and the driving end of the second driving device is connected with the screw rod. As a preferred scheme of the application, the eccentric bolt machining device in the application can realize position adjustment of the drill bit in three directions through the combined movement of the X-direction moving module, the Y-direction moving module and the Z-direction moving module, so as to ensure drilling accuracy; at the same time, the independent structure of each module facilitates individual maintenance, when a certain module fails, the entire adjusting assembly does not need to be disassembled on a large scale, effectively improving maintenance efficiency and ensuring stable operation of the machining device.

[0014] Further, the eccentric bolt machining device in the application, the drilling assembly further comprises: a mounting frame and a third driving device, the mounting frame is connected with the moving block, the drill bit is rotatably installed on one side of the mounting frame close to the clamp block, and the third driving device is installed on one side of the mounting frame away from the drill bit, and the third driving device is used for driving the drill bit to rotate. As a preferred scheme of the application, the eccentric bolt machining device in the application, the drilling assembly and the adjusting assembly are closely matched, the adjusting assembly can accurately adjust the position of the drill bit in X, Y and Z directions, and the drilling assembly drives the drill bit to rotate for drilling operation through the third driving device after the drill bit reaches the appropriate position, and the cooperative work of the two ensures that the eccentric bolt of different specifications and positions can be accurately drilled, and the machining precision of the entire eccentric bolt machining device is improved.

[0015] Further, the eccentric bolt machining device in the application further comprises: a pair of stop portions, the pair of stop portions are installed on the workbench, the pair of stop portions are arranged between the clamping assembly and the adjusting assembly, the pair of stop portions are arranged in correspondence with the pair of first tracks, and the stop portions are attached to the first tracks near the end of the clamping assembly. As the preferred solution of the application, when the adjusting assembly moves in the X direction, the first mounting plate will stop moving in the direction of the clamping assembly once it contacts the stop portion, which effectively protects the clamping block in the clamping assembly and the clamped eccentric bolt from damage caused by excessive movement of the adjusting assembly.

[0016] Further, the eccentric bolt machining device in the application further comprises: a pair of stop portions, the pair of stop portions are installed on the workbench, the pair of stop portions are arranged between the clamping assembly and the adjusting assembly, the pair of stop portions are arranged in correspondence with the pair of first tracks, and the stop portions are attached to the first tracks near the end of the clamping assembly. As the preferred solution of the application, when the adjusting assembly moves in the X direction, the first mounting plate will stop moving in the direction of the clamping assembly once it contacts the stop portion, which effectively protects the clamping block in the clamping assembly and the clamped eccentric bolt from damage caused by excessive movement of the adjusting assembly.

[0017] The above technical solution can be seen that the utility model has the following beneficial effects:

[0018] The utility model discloses a kind of eccentric bolt machining devices, and eccentric bolt of different specifications is adapted by adjustable clamping assembly, the position of drill bit is accurately adjusted in combination with X, Y, Z three-way adjusting module, to eliminate subjective error of manual operation, improve drilling accuracy, cooperate detachable chuck to improve universality, prevent excessive movement damage workpiece by setting stop portion protection structure, and equipment flexibility is enhanced by movable rack. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional structure schematic view of eccentric bolt corresponding to the eccentric bolt machining device in the embodiment of the application;

[0020] Figure 2 It is the three-dimensional structure schematic view of eccentric bolt corresponding to the eccentric bolt machining device in the embodiment of the application;

[0021] Figure 3 It is the three-dimensional structure schematic view of eccentric bolt corresponding to the eccentric bolt machining device in the embodiment of the application;

[0022] Figure 4 It is Figure 3 It is the local enlarged view of area A of middle circle

[0023] Figure 5 is a sectional view of a clamping block in an eccentric bolt machining device according to an embodiment of the present application;

[0024] Figure 6 is an internal structure diagram of a clamping assembly in an eccentric bolt machining device according to an embodiment of the present application;

[0025] Figure 7 is a three-dimensional structure diagram of an X-direction moving module and a Y-direction moving module in an eccentric bolt machining device according to an embodiment of the present application;

[0026] Figure 8 is a three-dimensional structure diagram of a Z-direction moving module in an eccentric bolt machining device according to an embodiment of the present application.

[0027] In the figure: 1 - eccentric bolt; 10 - center hole; 2 - workbench; 3 - clamping assembly; 30 - groove part; 31 - clamping block; 311 - clamping seat; 3111 - limiting part; 312 - chuck; 3121 - protruding part; 32 - base; 33 - guide rod; 34 - sliding block; 35 - first driving device; 4 - drilling assembly; 41 - drill bit; 42 - mounting frame; 43 - third driving device; 5 - adjusting assembly; 51 - X-direction moving module; 511 - first rail; 512 - first sliding block; 513 - first mounting plate; 514 - first linear driving device; 52 - Y-direction moving module; 521 - second rail; 522 - second sliding block; 523 - second mounting plate; 524 - second linear driving device; 53 - Z-direction moving module; 531 - stand; 532 - screw rod; 533 - moving block; 534 - second driving device; 6 - blocking part; 7 - rack; 8 - caster; 9 - adjustable base. DETAILED DESCRIPTION

[0028] As shown in Figure 1 , 2 , an eccentric bolt machining device for drilling a center hole 10 on a nut of an eccentric bolt 1 comprises: a workbench 2, which is provided with: a clamping assembly 3, which comprises: a pair of clamping blocks 31, which are movably arranged in a Y-direction and used to stably limit the eccentric bolt 1 on the workbench 2; a drilling assembly 4, which comprises: a drill bit 41 corresponding to the center hole 10, which is used to drill the center hole 10; and an adjusting assembly 5, which is arranged in an X-direction and spaced apart from the clamping assembly 3, wherein the drilling assembly 4 is mounted on the adjusting assembly 5, and the adjusting assembly 5 is used to adjust the position of the drill bit 41.

[0029] Based on the above structure, the principle of the eccentric bolt processing device is as follows: First, according to the specifications and dimensions of the eccentric bolt 1, the position of a pair of clamping blocks 31 is adjusted in the Y direction so that the clamping blocks 31 gradually approach and clamp the eccentric bolt 1, and stably limit it on the worktable 2; after the eccentric bolt 1 is fixed, the drilling assembly 4 is started, and the position of the drill bit 41 is automatically adjusted and fed downward through the adjusting assembly 5 to drill the nut of the eccentric bolt 1; after drilling is completed, the drill bit 41 is reset, the position of the clamping blocks 31 is adjusted, the processed eccentric bolt 1 is taken out, and the processing of the center hole 10 is completed. The clamping assembly 3, consisting of a pair of adjustable clamping blocks 31 in the Y direction, can securely limit the eccentric bolt 1 to the worktable 2. The adjustable setting allows the device to adapt to different specifications of eccentric bolts 1, ensuring the stability of the eccentric bolt 1 during drilling and preventing displacement of the eccentric bolt 1 that would affect drilling accuracy. The adjusting assembly 5 can adjust the position of the drill bit 41. Corresponding to different specifications of eccentric bolts 1, the adjusting assembly 5 accurately adjusts the drill bit 41 to the appropriate position for drilling according to a preset path, improving the accuracy and consistency of drilling and ensuring processing precision.

[0030] In this embodiment, as Figure 3 , 4 As shown in Figures 5 and 6, the clamping assembly 3 further includes a base 32 and a first driving device 35. The base 32 is mounted on the worktable 2. The base 32 has a groove 30 extending along the Y direction. A guide rod 33 is provided in the groove 30. A sliding block 34 is sleeved on the guide rod 33. A pair of clamping blocks 31 are disposed opposite each other on the base 32. The pair of clamping blocks 31 are respectively connected to the base 32 and the sliding block 34. The first driving device 35 is used to drive the clamping block 31 connected to the sliding block 34 to move and adjust in the Y direction. The guide rod 33 provides guidance for the movement of the sliding block 34, so that the clamping block 31 connected to the sliding block 34 can always move along the Y direction, ensuring the linearity and stability of the movement of the clamping block 31, thereby improving the positioning accuracy of the eccentric bolt 1 and avoiding the clamping block 31 from shifting during the movement, which would cause the eccentric bolt 1 to be unstable. The first drive device 35 is mounted on the mounting base 32. The drive end of the first drive device 35 is connected to the clamping block 31 connected to the sliding block 34. In other embodiments, the first drive device 35 is disposed in the groove 30, and the drive end of the first drive device 35 is connected to the sliding block 34. The first drive device 35 is a cylinder.

[0031] In the embodiment, the clamp block 31 comprises a clamp seat 311, a set of clamp heads 312 corresponding to the shape of the eccentric bolt 1, and a set of clamp heads 312 are detachably mounted on the clamp seat 311, and the set of clamp heads 312 are arranged at intervals in the X direction, and the clamp head 312 is provided with an arc-shaped part on the side close to the clamp seat 311, and the arc-shaped part is provided with a convex part 3121 at the upper and lower ends respectively, and the convex part 3121 is arranged in extension along the extension direction of the arc-shaped part, and the clamp seat 311 is provided with a mounting groove part corresponding to the arc-shaped part on the side close to the clamp head 312, and the mounting groove part is used to accommodate the arc-shaped part, and the side wall of the mounting groove part is provided with a limiting part 3111 corresponding to the convex part 3121, and when the clamp head 312 is mounted on the clamp seat 311, the convex part 3121 and the limiting part 3111 form a sliding fit to realize axial positioning. The clamp head 312 is detachably mounted on the clamp seat 311, and this design enables the clamp head 312 to be replaced according to the shape specifications of different eccentric bolts 1, thereby improving the versatility and adaptability of the device; the clamp head 312 is provided with an arc-shaped part on the side close to the clamp seat 311, and the clamp seat 311 is provided with a mounting groove part corresponding to the arc-shaped part on the side close to the clamp head 312, and the mounting groove part is used to accommodate the arc-shaped part, and this structural design facilitates the clamp head 312 to be mounted and dismounted by the operator, and when it is needed to dismount the clamp head 312 from the clamp seat 311, only the clamp head 312 needs to be rotated, and the arc-shaped part on the clamp head 312 will be rotated out of the side opening of the mounting groove part, and when the arc-shaped part is completely removed from the mounting groove part, the clamp head 312 and the clamp seat 311 can be separated; when it is needed to mount the clamp head 312 on the clamp seat 311, the end of the arc-shaped part on the clamp head 312 is aligned with the side opening of the mounting groove part, and the clamp head 312 is rotated, and when the arc-shaped part is completely entered into the mounting groove part, the mounting is completed; the convex part 3121 and the limiting part 3111 cooperate to realize axial positioning, so that the position of the clamp head 312 on the clamp seat 311 is stable, the axial movement of the clamp head 312 in the use process is prevented, the stability of the eccentric bolt 1 when being clamped is ensured, the positioning accuracy of the eccentric bolt 1 is improved, and the subsequent drilling operation is facilitated. The number of the set of clamp heads 312 is 8, and correspondingly, the clamp seat 311 is provided with 8 mounting groove parts.

[0032] As Figure 7 , 8As shown, in the embodiment, the adjusting assembly 5 comprises an X-direction moving module 51 mounted on the workbench 2, the X-direction moving module 51 comprising a pair of first rails 511 mounted on the workbench 2 in the Y direction, a set of first sliders 512 slidingly mounted on the pair of first rails 511, a first mounting plate 513 mounted on the first sliders 512, and a first linear driving device 514 moving the first mounting plate 513 in the X direction. The first mounting plate 513 is provided with a Y-direction moving module 52, the Y-direction moving module 52 comprising a pair of second rails 521 mounted on the first mounting plate 513 in the X direction, a second slider 522 slidingly mounted on the pair of second rails 521, a second mounting plate 523 mounted on the second slider 522, and a second linear driving device 524 moving the second mounting plate 523 in the Y direction. The second mounting plate 523 is provided with a Z-direction moving module 53, the Z-direction moving module 53 comprising a stand 531, a screw rod 532, a moving block 533, and a second driving device 534, the stand 531 mounted on the second mounting plate 523, the screw rod 532 vertically mounted on the stand 531, the moving block 533 sleeved on the screw rod 532, the moving block 533 threadedly connected with the screw rod 532, and the driving end of the second driving device 534 connected with the screw rod 532. Through the combined movement of the X-direction moving module 51, the Y-direction moving module 52, and the Z-direction moving module 53, the drill bit 41 can be adjusted in position in three directions, ensuring the drilling precision. Meanwhile, the independent structure of each module facilitates individual maintenance, and when a certain module fails, the entire adjusting assembly 5 does not need to be disassembled on a large scale, effectively improving the maintenance efficiency and ensuring the stable operation of the processing device. The number of the set of first sliders 512 is two, the first linear driving device 514 and the second linear driving device 524 are both air cylinders, and the second driving device 534 is an electric motor.

[0033] In the embodiment, the drilling assembly 4 further comprises a mounting frame 42, the mounting frame 42 is connected with the moving block 533, the drill bit 41 is rotatably mounted on the mounting frame 42 on the side away from the clamp block 31, and the third driving device 43 is mounted on the mounting frame 42 on the side away from the drill bit 41, and the third driving device 43 is used for driving the drill bit 41 to rotate. The drilling assembly 4 is matched with the adjusting assembly 5, the adjusting assembly 5 can accurately adjust the position of the drill bit 41 in the X, Y and Z directions, and the drilling assembly 4 drives the drill bit 41 to rotate for drilling operation after the drill bit 41 reaches the appropriate position, and the cooperation of the two ensures that the eccentric bolt 1 of different specifications and positions can be accurately drilled, and the machining precision of the whole eccentric bolt machining device is improved. The third driving device 43 adopts a motor, and the motor is connected with the drill bit 41 through a belt transmission.

[0034] In the embodiment, a pair of stop portions 6 are further included, the pair of stop portions 6 are mounted on the workbench 2, the pair of stop portions 6 are arranged between the clamping assembly 3 and the adjusting assembly 5, the pair of stop portions 6 are arranged in correspondence with the pair of first tracks 511, and the stop portion 6 is attached to the first track 511 on the side away from the clamping assembly 3. When the adjusting assembly 5 moves in the X direction, once the first mounting plate 513 contacts the stop portion 6, the movement in the direction of the clamping assembly 3 is stopped, which effectively protects the clamp block 31 in the clamping assembly 3 and the clamped eccentric bolt 1, and prevents damage to them due to excessive movement of the adjusting assembly 5.

[0035] In the embodiment, a rack 7 is further included, the workbench 2 is arranged on the rack 7, a set of casters 8 and a set of adjustable bases 9 are arranged on the bottom of the rack 7, and the set of casters 8 and the set of adjustable bases 9 are both arranged along the circumference of the rack 7. The rack 7 serves as a support structure of the whole eccentric bolt machining device, and provides a stable mounting platform for the workbench 2; the set of casters 8 makes the whole eccentric bolt machining device movable, so that an operator can easily push the device to move and adjust the position of the device to adapt to different working scenes and machining requirements; and the adjustable bases 9 can be adjusted in height according to the flatness of the ground, so that the rack 7 and the workbench 2 are kept in a horizontal state. The number of the set of casters 8 and the set of adjustable bases 9 is both four.

[0036] The technical principle of the utility model is described in combination with specific embodiments, and these descriptions are only for explaining the principle of the utility model, and cannot be interpreted as limiting the protection scope of the utility model in any way. Based on the explanation herein, other specific embodiments of the utility model can be conceived by those skilled in the art without creative labor, and these embodiments will all fall within the protection scope of the utility model.

Claims

1. An eccentric bolt machining device for drilling a center hole (10) in a nut of an eccentric bolt (1), characterized in that: The utility model relates to a center hole drilling device for eccentric bolt, which comprises: a workbench (2) provided with: a clamping assembly (3) comprising: a pair of clamping blocks (31) movably arranged in Y direction, the clamping blocks (31) are used for stably limiting the eccentric bolt (1) on the workbench (2); a drilling assembly (4) comprising: a drill bit (41) corresponding to the center hole (10), the drill bit (41) is used for drilling the center hole (10); an adjusting assembly (5) arranged in X direction and spaced apart from the clamping assembly (3), the drilling assembly (4) is installed on the adjusting assembly (5), and the adjusting assembly (5) is used for adjusting the position of the drill bit (41).

2. An eccentric bolt machining apparatus according to claim 1, characterized in that: The clamping assembly (3) further comprises: a base (32), a first driving device (35), the base (32) is installed on the workbench (2), the base (32) is provided with a groove (30) extending along the Y direction, the groove (30) is provided with a guide rod (33), the guide rod (33) is provided with a sliding block (34), a pair of clamping blocks (31) are oppositely arranged on the base (32), and the clamping blocks (31) are connected with the base (32) and the sliding block (34) respectively, and the first driving device (35) is used for driving the clamping blocks (31) connected with the sliding block (34) to move and adjust in Y direction.

3. An eccentric bolt machining apparatus according to claim 2, wherein: The clamping block (31) comprises: a clamping seat (311), a group of clamping heads (312) matched with the shape of the eccentric bolt (1), a group of clamping heads (312) are detachably installed on the clamping seat (311), a group of clamping heads (312) are arranged at intervals in X direction, the clamping head (312) is provided with an arc-shaped part on one side close to the clamping seat (311), the arc-shaped part is provided with convex parts (3121) at the upper end and the lower end respectively, the convex parts (3121) are arranged in extension along the extension direction of the arc-shaped part, the clamping seat (311) is provided with a mounting groove corresponding to the arc-shaped part on one side close to the clamping head (312), the mounting groove is used for accommodating the arc-shaped part, the side wall of the mounting groove is provided with a limiting part (3111) corresponding to the convex part (3121), when the clamping head (312) is installed on the clamping seat (311), the convex part (3121) and the limiting part (3111) form sliding fit to realize axial positioning.

4. The eccentric bolt machining apparatus of claim 1, wherein: The adjusting assembly (5) comprises: an X-direction moving module (51), which is installed on the workbench (2); the X-direction moving module (51) comprises: a pair of first rails (511), which are installed on the workbench (2) at intervals in the Y direction; a set of first sliding blocks (512) are slidingly installed on the pair of first rails (511); a first mounting plate (513) is installed on the first sliding block (512); and the first mounting plate (513) is moved and adjusted in the X direction by a first linear driving device (514); a Y-direction moving module (52) is arranged on the first mounting plate (513); the Y-direction moving module (52) comprises: a pair of second rails (521), which are installed on the first mounting plate (513) at intervals in the X direction; a second sliding block (522) is slidingly installed on the pair of second rails (521); a second mounting plate (523) is installed on the second sliding block (522); and the second mounting plate (523) is moved and adjusted in the Y direction by a second linear driving device (524); a Z-direction moving module (53) is arranged on the second mounting plate (523); the Z-direction moving module (53) comprises: a stand (531), a screw rod (532), a moving block (533) and a second driving device (534); the stand (531) is installed on the second mounting plate (523); the screw rod (532) is installed vertically on the stand (531); the moving block (533) is sleeved on the screw rod (532); the moving block (533) is in threaded connection with the screw rod (532); and a driving end of the second driving device (534) is connected with the screw rod (532).

5. An eccentric bolt machining apparatus according to claim 4, wherein: The drilling assembly (4) further comprises: a mounting frame (42) and a third driving device (43); the mounting frame (42) is connected with the moving block (533); the drill bit (41) is rotatably installed on one side of the mounting frame (42) which is close to the clamping block (31); and the third driving device (43) is installed on the side of the mounting frame (42) which is away from the drill bit (41); and the third driving device (43) is used for driving the drill bit (41) to rotate.

6. An eccentric bolt machining apparatus according to claim 4, wherein: Further comprising: a pair of blocking portions (6), which are installed on the workbench (2); the pair of blocking portions (6) are arranged between the clamping assembly (3) and the adjusting assembly (5); the pair of blocking portions (6) are arranged in correspondence with the pair of first rails (511); and the blocking portion (6) is in abutment with the first rail (511) on the side which is close to the clamping assembly (3).

7. An eccentric bolt machining apparatus according to claim 1, wherein: Further comprising: a rack (7), wherein the workbench (2) is arranged on the rack (7); a set of casters (8) and a set of adjustable bases (9) are arranged at the bottom of the rack (7) at intervals in the circumferential direction of the rack (7).

Images