Eccentric workpiece machining tool

Abstract

The utility model discloses an eccentric workpiece machining tool which comprises a base, a clamping mechanism and a shaft rod mechanism. A boss is arranged at the top of the base, a mounting hole is formed in the middle of the top face of the boss, at least two sliding grooves are further formed in the boss, and the sliding grooves are distributed around the mounting hole in the circumferential direction at intervals. The clamping mechanism comprises a clamping ring and a clamping block; the clamping ring is rotatably arranged on the outer side of the boss in a sleeving mode, and the inner wall of the clamping ring is provided with a cambered surface groove corresponding to the sliding groove in the outer wall of the boss; the clamping block can be assembled in the sliding groove in a reciprocating sliding mode, the outer end of the clamping block extends out of the sliding groove and is located in the cambered surface groove, and the inner end of the clamping block is close to the mounting hole; the shaft rod mechanism is detachably mounted in the mounting hole, a shaft rod is arranged in the middle of the top face of the shaft rod mechanism and used for sleeving the to-be-machined eccentric shaft sleeve, and the clamping blocks are used for clamping and fixing the to-be-machined eccentric shaft sleeve. The shaft rod mechanism is replaceable, so that the cost for manufacturing a special tool can be reduced; meanwhile, the eccentric shaft sleeve to be machined can be quickly disassembled and assembled through the clamping mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of eccentric wheel processing, in particular to an eccentric workpiece processing tool. Background Art

[0002] Existing machining centers and machine tools can be used to turn and mill some shaft-type rotating workpieces. The center of such rotating workpieces is on the same axis as the rotation center of the machining equipment worktable, so they can be directly installed on the worktable. However, for eccentric workpieces such as eccentric wheels and eccentric sleeves, their rotation center is not on the rotation center of the machining equipment and cannot be processed with conventional machining equipment. At present, although special fixtures are made for eccentric workpieces, when machining eccentric workpieces with different eccentric distances, different fixtures and tooling need to be processed separately, which is costly. Utility Model Content

[0003] The utility model aims to provide an eccentric workpiece processing tool, which can process eccentric workpieces with different parameters and has the advantage of reducing the cost of the processing tool.

[0004] In order to achieve the above purpose, the solution of the utility model is:

[0005] An eccentric workpiece processing tool comprises a base, a clamping mechanism and a shaft mechanism;

[0006] The top of the base is provided with a boss, the middle of the top surface of the boss is provided with a mounting hole, and the boss is also provided with at least two slide grooves, each of which is distributed circumferentially around the mounting hole and each of which extends radially to connect the mounting hole and the outer wall of the boss;

[0007] The clamping mechanism comprises a clamping ring and clamping blocks corresponding to the number of slide grooves;

[0008] The clamping ring is rotatably sleeved on the outer side of the boss, and the inner wall of the clamping ring is provided with an arc groove corresponding to the sliding groove of the outer wall of the boss;

[0009] The clamping block can be reciprocatingly slidably assembled in the slide slot, the outer end of the clamping block extends out of the slide slot and is located in the arc groove, and the inner end of the clamping block is close to the mounting hole;

[0010] The shaft mechanism is detachably mounted in the mounting hole, and a shaft protruding from the mounting hole is provided in the middle of the top surface of the shaft mechanism. The shaft is used for sleeve-mounting the eccentric sleeve to be processed, and each clamping block is used for clamping and fixing the eccentric sleeve to be processed.

[0011] Furthermore, the top of the slide groove has a top opening connected to the top surface of the boss, and the inner end of the clamping block extends upward from the top opening; a clamping groove is formed in the slide groove, and the clamping block has a clamping block slidably connected in the clamping groove.

[0012] Furthermore, a top-butting plane is recessed at the lower inner end of the clamping block; a limit block is provided on the inner side of the slide groove close to the mounting hole, and the limit block is used to limit the top-butting plane to prevent the clamping block from sliding excessively inward.

[0013] Furthermore, the groove wall of the arc groove includes an arc guide surface and a resistance surface; the arc radius of the resistance surface is smaller than the arc radius of the arc guide surface.

[0014] Furthermore, the outer end surface of the clamping block is a curved surface.

[0015] Furthermore, a push rod insertion hole is provided on the outer wall of the clamping ring.

[0016] Furthermore, the base includes a first mounting seat and a second mounting seat, the upper part of the first mounting seat is the boss, and the lower part of the first mounting seat is embedded in the second mounting hole in the middle of the second mounting seat; a mounting step is formed between the boss and the top surface of the second mounting seat, and the bottom surface of the clamping ring is placed on the mounting step.

[0017] Furthermore, it also includes two transverse screws, two longitudinal screws, a third mounting seat and a fourth mounting seat;

[0018] The second mounting seat, the third mounting seat and the fourth mounting seat are sequentially arranged up and down; a transverse sliding block is convexly provided on the bottom of the second mounting seat, a transverse sliding groove is provided on the top surface of the third mounting seat for sliding engagement of the transverse sliding block, a longitudinal sliding block is convexly provided on the bottom surface of the third mounting seat, a longitudinal sliding groove is provided on the top surface of the fourth mounting seat for sliding engagement of the longitudinal sliding block, and a plurality of fixing holes penetrating the upper and lower surfaces are also provided on the fourth mounting seat;

[0019] The base further comprises two transverse movement lock holes and two longitudinal movement lock holes, wherein the two transverse movement lock holes are located on both sides of the transverse slide groove, and the two longitudinal movement lock holes are located on both sides of the longitudinal slide groove;

[0020] The transverse movable locking hole comprises a coaxial transverse through hole and a transverse locking hole, the transverse through hole extends from the top surface of the first mounting seat of the base through the third mounting seat, and the transverse locking hole is recessed on the top surface of the fourth mounting seat, and has an internal thread in the transverse locking hole; the transverse screw passes through the transverse through hole and is locked and fixed with the transverse locking hole, and the diameter of the transverse through hole is larger than the outer diameter of the transverse screw;

[0021] The longitudinal movable locking hole includes a coaxial longitudinal through hole and a longitudinal locking hole. The longitudinal through hole extends from the top surface of the first mounting seat of the base and passes through the second mounting seat, while the longitudinal locking hole is recessed in the top surface of the third mounting seat, and has an internal thread in the longitudinal locking hole. The longitudinal screw passes through the longitudinal through hole and is locked and fixed with the longitudinal locking hole, and the aperture of the longitudinal through hole is larger than the outer diameter of the longitudinal screw.

[0022] Furthermore, the shaft mechanism includes a shaft seat and the shaft; the shaft seat has an inclined shaft hole, the shaft is inserted into the shaft hole and the top of the shaft extends out of the top surface of the shaft seat; the side wall of the shaft seat is provided with a first key groove, and the inner wall of the mounting hole is provided with a second key groove corresponding to the first key groove, and the shaft seat is installed in the mounting hole and is positioned and fixed by a flat key that is clamped in the first key groove and the second key groove.

[0023] Furthermore, four slide grooves are arranged on the boss, and the slide grooves are evenly distributed around the mounting hole in a circumferential direction.

[0024] After adopting the above technical scheme, the shaft rod mechanism of the processing tooling is replaceable in design, and the corresponding shaft rod mechanism can be selected for the eccentric sleeves to be processed with different parameters, which can be adapted to the installation of the eccentric sleeves to be processed with different parameters, so as to greatly reduce the cost of manufacturing special tooling; at the same time, the clamping ring and the clamping block of the clamping mechanism can be used in combination to realize the rapid fixation and disassembly of the eccentric sleeves to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0026] Figure 2 It is a front view of an embodiment of the utility model;

[0027] Figure 3 A top view of an embodiment of the utility model;

[0028] Figure 4 This is an exploded view of an embodiment of the utility model (I);

[0029] Figure 5 This is an exploded view of an embodiment of the utility model (II);

[0030] Figure 6 for Figure 3 Sectional view at AA;

[0031] Figure 7 for Figure 3 Cross-sectional view at BB;

[0032] Figure 8 for Figure 3 Cross-sectional view at CC.

[0033] Reference numerals: processing tool 10, base 1, first mounting seat 11, boss 111, mounting hole 112, second keyway 1121, slide 113, top opening 1131, slot 1132, slide inner hole 1133, second mounting seat 12, second mounting hole 121, mounting step 122, transverse slide block 123, third mounting seat 13, transverse slide 131, longitudinal slide block 132, fourth mounting seat 14, longitudinal slide 141, fixing hole 142, transverse movable lock hole 15, transverse through hole 15 1, transverse locking hole 152, longitudinal movable locking hole 16, longitudinal through hole 161, longitudinal locking hole 162, clamping mechanism 2, clamping ring 21, arc groove 211, arc guide surface 2111, abutment surface 2112, push rod socket 212, clamping block 22, outer end 221, inner end 222, clamping block 223, top plane 224, shaft mechanism 3, shaft 31, shaft seat 32, shaft hole 321, first keyway 322, flat key 4, limit block 5, transverse screw 6, longitudinal screw 7, eccentric sleeve 20 to be processed. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] like Figures 1 to 8 As shown, an eccentric workpiece processing tool 10 of the utility model can be used to process various eccentric workpieces with different parameters, such as different eccentric distances. The eccentric workpiece in this embodiment takes an eccentric sleeve as an example.

[0036] like Figure 1 , Figure 4 and Figure 5 As shown, the processing tool 10 includes a base 1 , a clamping mechanism 2 and a shaft mechanism 3 .

[0037] A boss 111 is provided on the top of the base 1, and a mounting hole 112 is provided in the middle of the top surface of the boss 111. At least two slide grooves 113 are also provided on the boss 111. In this embodiment, four slide grooves 113 are provided. The slide grooves 113 are distributed circumferentially around the mounting hole 112, and circumferentially uniform spacing is optimal; and each slide groove 113 extends radially to connect the mounting hole 112 and the outer wall of the boss 111.

[0038] See also Figure 3The clamping mechanism 2 includes a clamping ring 21 and a number of clamping blocks 22 corresponding to the slide groove 113; the clamping ring 21 is a circular ring structure and is rotatably sleeved on the outside of the boss 111, and the inner wall of the clamping ring 21 is provided with an arc groove 211 corresponding to the slide groove 113 on the outer wall of the boss 111; the clamping block 22 can be reciprocatingly slidably assembled in the slide groove 113, the outer end 221 of the clamping block 22 extends out of the slide groove 113 and is located in the arc groove 211, and the inner end 222 of the clamping block 22 is close to the mounting hole 112; therefore, when the clamping ring 21 rotates, the arc groove 211 rotates accordingly, and will push against the movement of the outer end 221 of the clamping block 22, so that each clamping block 22 moves radially inward along the slide groove 113, so that the inner end 222 of the clamping block 22 slides close to the mounting hole 112.

[0039] The shaft mechanism 3 is detachably installed in the mounting hole 112, and a shaft 31 protruding from the mounting hole 112 is provided in the middle of the top surface of the shaft mechanism 3. The shaft 31 is used to sleeve the eccentric sleeve 20 to be processed. In this way, the corresponding shaft mechanism 3 can be selected for the eccentric sleeve 20 to be processed with different parameters, and then the eccentric sleeve 20 to be processed can be clamped and fixed by the above-mentioned clamping blocks 22.

[0040] Thus, the replaceable design of the shaft mechanism 3 of the processing tool 10 can be adapted to the installation of the eccentric sleeve 20 to be processed with different parameters, so as to greatly reduce the processing cost; at the same time, the clamping ring 21 and the clamping block 22 of the clamping mechanism 2 can cooperate to realize the rapid fixation and disassembly of the eccentric sleeve 20 to be processed, so as to facilitate subsequent processing.

[0041] In this embodiment, refer to Figure 6 The shaft mechanism 3 includes a shaft seat 32 and the shaft 31; the shaft seat 32 has an inclined shaft hole 321, the shaft 31 is inserted into the shaft hole 321 and the top of the shaft 31 extends out of the top surface of the shaft seat 32; the shaft hole 321 of the shaft seat 32 can have multiple types to control the part of the shaft 31 extending out of the top surface of the shaft seat 32 to have different angles to adapt to the eccentric sleeve 20 to be processed with different parameters.

[0042] The side wall of the shaft seat 32 is provided with a first key groove 322, and the inner wall of the mounting hole 112 is provided with a second key groove 1121 corresponding to the first key groove 322. The shaft seat 32 is inserted into the mounting hole 112 and is positioned and fixed by the flat key 4 clamped in the first key groove 322 and the second key groove 1121. The flat key 4 is provided to fix the shaft mechanism 3 and the base 1.

[0043] See also Figure 2 and Figure 6Specifically, the top of the slide groove 113 may have a top opening 1131 connected to the top surface of the boss 111, and the inner end 222 of the clamping block 22 extends upward from the top opening 1131; a card slot 1132 is formed in the slide groove 113, and the clamping block 22 has a card block 223 slidably connected in the card slot 1132.

[0044] The inner end 222 of the clamping block 22 is provided with a top-butting plane 224 at the lower part; the inner side of the slide groove 113 near the mounting hole 112 is provided with a limit block 5, which is used to limit the top-butting plane 224 to prevent the clamping block 22 from sliding excessively inward. This is to protect the eccentric sleeve 20 to be processed, and to prevent the clamping ring 21 from excessively rotating and causing the clamping block 22 to excessively clamp the eccentric sleeve 20 to be processed and cause damage. The specific limit block 5 can be set according to the actual bottom diameter of the eccentric sleeve 20 to be processed. The limit block 5 can be fixed in the slide groove inner hole 1133 on the inner side of the slide groove 113.

[0045] like Figure 3 As shown, the groove wall of the arc groove 211 of this embodiment includes an arc guide surface 2111 and a stop surface 2112; the arc radius of the stop surface 2112 is smaller than the arc radius of the arc guide surface 2111. In this way, the clamping ring 21 can rotate in one direction to push against the clamping block 22, and after rotating in the opposite direction, the outer end 221 of the clamping block 22 will eventually be limited by the stop surface 2112. Correspondingly, the end surface of the outer end 221 of the clamping block 22 can be an arc surface.

[0046] At the same time, the outer wall of the clamping ring 21 may be provided with at least one push rod insertion hole 212 for facilitating the insertion of a push rod (not shown) to push the clamping ring 21 to rotate.

[0047] like Figures 4 to 6 As shown, the base 1 of this embodiment includes a first mounting seat 11 and a second mounting seat 12, the upper part of the first mounting seat 11 is the boss 111, and the lower part of the first mounting seat 11 is embedded in the second mounting hole 121 in the middle of the second mounting seat 12; a mounting step 122 is formed between the boss 111 and the top surface of the second mounting seat 12, and the bottom surface of the clamping ring 21 is placed on the mounting step 122. This facilitates the assembly and installation of the processing tool 10 to ensure the stability of the overall structure of the product.

[0048] At the same time, if Figure 1 , Figure 4 , Figure 7 and Figure 8 As shown, this embodiment also includes two transverse screws 6, two longitudinal screws 7, a third mounting seat 13 and a fourth mounting seat 14; so that the spatial position of the boss 111 on the top of the base 1 and the shaft mechanism 3 can be fine-tuned, which can improve the product processing accuracy.

[0049] Specifically, the second mounting seat 12, the third mounting seat 13 and the fourth mounting seat 14 are sequentially arranged up and down; a transverse slider 123 is convexly provided on the bottom of the second mounting seat 12, and a transverse groove 131 is provided on the top surface of the third mounting seat 13 for sliding engagement of the transverse slider 123; a longitudinal slider 132 is convexly provided on the bottom surface of the third mounting seat 13, and a longitudinal groove 141 is provided on the top surface of the fourth mounting seat 14 for sliding engagement of the longitudinal slider 132; and a plurality of fixing holes 142 that pass through the upper and lower surfaces are also provided on the fourth mounting seat 14; thus, the fourth mounting seat 14 can be fixed to the machine (not shown) by means of the fixing holes 142, and the first mounting seat 11 to the third mounting seat 13 can be longitudinally fine-tuned along the longitudinal groove 141 of the fourth mounting seat 14 by means of the longitudinal slider 132, and the first mounting seat 11 and the second mounting seat 12 can be transversely fine-tuned along the transverse groove 131 of the third mounting seat 13 by means of the transverse groove 131.

[0050] The base 1 further includes two transverse movement lock holes 15 and two longitudinal movement lock holes 16, the two transverse movement lock holes 15 are located on both sides of the transverse slide groove 131, and the two longitudinal movement lock holes 16 are located on both sides of the longitudinal slide groove 141;

[0051] At the same time, the transverse movement locking hole 15 includes a coaxial transverse through hole 151 and a transverse locking hole 152, the transverse through hole 151 extends from the top surface of the first mounting seat 11 of the base 1 to pass through the third mounting seat 13, and the transverse locking hole 152 is recessed on the top surface of the fourth mounting seat 14, and the transverse locking hole 152 has an internal thread (not shown in the figure); the transverse screw 6 passes through the transverse through hole 151 and is locked and fixed with the transverse locking hole 152, and the aperture of the transverse through hole 151 is larger than the outer diameter of the transverse screw 6; the longitudinal movement locking hole 16 includes a coaxial longitudinal through hole 161 and a longitudinal locking hole 162, the longitudinal through hole 161 extends from the top surface of the first mounting seat 11 of the base 1 to pass through the second mounting seat 12, and the longitudinal locking hole 162 is recessed on the top surface of the third mounting seat 13, and the longitudinal locking hole 162 has an internal thread (not shown in the figure); the longitudinal screw 7 passes through the longitudinal through hole 161 and is locked and fixed with the longitudinal locking hole 162, and the aperture of the longitudinal through hole 161 is larger than the outer diameter of the longitudinal screw 7.

[0052] Therefore, the range of the longitudinal fine adjustment is the gap between the longitudinal through hole 161 and the longitudinal screw 7, and the range of the transverse fine adjustment is the gap between the transverse through hole 151 and the transverse screw 6. When longitudinal fine adjustment is required, it is only necessary to loosen the longitudinal screw 7 so that the first mounting seat 11 and the second mounting seat 12 can slide and adjust with the third mounting seat 13 in the longitudinal direction. After the first mounting seat 11 is slid to the predetermined position, the longitudinal screw 7 is tightened to press the first mounting seat 11, the second mounting seat 12 and the third mounting seat 13, thereby achieving fine adjustment of the spatial position of the shaft mechanism 3 and the eccentric sleeve 20 to be processed to improve the processing accuracy. Similarly, transverse fine adjustment can be achieved.

[0053] The above is only a preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, equivalent changes and modifications without departing from the principle of the utility model should still fall within the protection scope of the utility model.

[0054] In the description of the embodiments of the present application, it should be understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by technical personnel in this field. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0055] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0056] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] In addition, the present application provides examples of various specific processes and materials, but a person skilled in the art may be aware of the application of other processes and / or the use of other materials.

Claims

1. An eccentric workpiece processing tool, characterized in that: It includes a base, a clamping mechanism and a shaft mechanism; The top of the base is provided with a boss, the middle of the top surface of the boss is provided with a mounting hole, and the boss is also provided with at least two slide grooves, each of which is distributed circumferentially around the mounting hole and each of which extends radially to connect the mounting hole and the outer wall of the boss; The clamping mechanism comprises a clamping ring and clamping blocks corresponding to the number of slide grooves; The clamping ring is rotatably sleeved on the outer side of the boss, and the inner wall of the clamping ring is provided with an arc groove corresponding to the sliding groove of the outer wall of the boss; The clamping block can be reciprocatingly slidably assembled in the slide slot, the outer end of the clamping block extends out of the slide slot and is located in the arc groove, and the inner end of the clamping block is close to the mounting hole; The shaft mechanism is detachably mounted in the mounting hole, and a shaft protruding from the mounting hole is provided in the middle of the top surface of the shaft mechanism. The shaft is used for sleeve-mounting the eccentric sleeve to be processed, and each clamping block is used for clamping and fixing the eccentric sleeve to be processed.

2. The eccentric workpiece processing tool according to claim 1, characterized in that: The top of the slide groove has a top opening connected to the top surface of the boss, and the inner end of the clamping block extends upward from the top opening; a clamping groove is formed in the slide groove, and the clamping block has a clamping block slidably connected in the clamping groove.

3. An eccentric workpiece processing tool according to claim 1 or 2, characterized in that: The lower inner end of the clamping block is recessed with a top-butting plane; the inner side of the slide groove close to the mounting hole is provided with a limit block, which is used to limit the top-butting plane to prevent the clamping block from sliding excessively inward.

4. The eccentric workpiece processing tool according to claim 1, characterized in that: The groove wall of the arc surface groove comprises an arc guide surface and a resisting surface; the arc surface radius of the resisting surface is smaller than the arc surface radius of the arc guide surface.

5. The eccentric workpiece processing tool according to claim 4, characterized in that: The outer end surface of the clamping block is a curved surface.

6. The eccentric workpiece processing tool according to claim 1, characterized in that: The outer wall of the clamping ring is provided with a push rod insertion hole.

7. An eccentric workpiece processing tool according to claim 1 or 6, characterized in that: The base includes a first mounting seat and a second mounting seat, the upper part of the first mounting seat is the boss, and the lower part of the first mounting seat is embedded in the second mounting hole in the middle of the second mounting seat; a mounting step is formed between the boss and the top surface of the second mounting seat, and the bottom surface of the clamping ring is placed on the mounting step.

8. The eccentric workpiece processing tool according to claim 7, characterized in that: Also included are two transverse screws, two longitudinal screws, a third mounting base, and a fourth mounting base; The second mounting seat, the third mounting seat and the fourth mounting seat are sequentially arranged up and down; a transverse sliding block is convexly provided on the bottom of the second mounting seat, a transverse sliding groove is provided on the top surface of the third mounting seat for sliding engagement of the transverse sliding block, a longitudinal sliding block is convexly provided on the bottom surface of the third mounting seat, a longitudinal sliding groove is provided on the top surface of the fourth mounting seat for sliding engagement of the longitudinal sliding block, and a plurality of fixing holes penetrating the upper and lower surfaces are also provided on the fourth mounting seat; The base further comprises two transverse movement lock holes and two longitudinal movement lock holes, wherein the two transverse movement lock holes are located on both sides of the transverse slide groove, and the two longitudinal movement lock holes are located on both sides of the longitudinal slide groove; The transverse movable locking hole comprises a coaxial transverse through hole and a transverse locking hole, the transverse through hole extends from the top surface of the first mounting seat of the base through the third mounting seat, and the transverse locking hole is recessed on the top surface of the fourth mounting seat, and has an internal thread in the transverse locking hole; the transverse screw passes through the transverse through hole and is locked and fixed with the transverse locking hole, and the diameter of the transverse through hole is larger than the outer diameter of the transverse screw; The longitudinal movable locking hole includes a coaxial longitudinal through hole and a longitudinal locking hole. The longitudinal through hole extends from the top surface of the first mounting seat of the base and passes through the second mounting seat, while the longitudinal locking hole is recessed in the top surface of the third mounting seat, and has an internal thread in the longitudinal locking hole. The longitudinal screw passes through the longitudinal through hole and is locked and fixed with the longitudinal locking hole, and the aperture of the longitudinal through hole is larger than the outer diameter of the longitudinal screw.

9. The eccentric workpiece processing tool according to claim 1, characterized in that: The shaft mechanism includes a shaft seat and the shaft; the shaft seat has an inclined shaft hole, the shaft is inserted into the shaft hole and the top of the shaft extends out of the top surface of the shaft seat; the side wall of the shaft seat is provided with a first key groove, and the inner wall of the mounting hole is provided with a second key groove corresponding to the first key groove, the shaft seat is installed in the mounting hole and is positioned and fixed by a flat key that is clamped in the first key groove and the second key groove.

10. The eccentric workpiece processing tool according to claim 1, characterized in that: The boss is provided with four slide grooves, and the slide grooves are evenly spaced and distributed around the mounting hole.

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