Shaft workpiece machining clamp

Abstract

The utility model belongs to the technical field of shaft workpiece machining, and discloses a shaft workpiece machining clamp. The shaft workpiece machining clamp comprises a base, a limiting piece and a fixing piece. The base is used for being connected with a workbench of a grinding machine, and a guide part is arranged on the base and used for determining the machining direction and the center position of a shaft workpiece. The limiting piece is detachably connected with the base, a V-shaped groove extending in the direction perpendicular to the base is formed in the limiting piece, and a part of the shaft workpiece is installed in the V-shaped groove; and the fixing piece is detachably connected with the limiting piece, and the fixing piece is used for fixing the shaft workpiece in the V-shaped groove. According to the shaft workpiece machining clamp, the coaxiality of shaft workpieces can be guaranteed through one-time clamping, the machining precision of the shaft workpieces is improved, and the shaft workpiece machining clamp is suitable for shaft workpieces of various sizes and high in universality.

Description

TECHNICAL FIELD

[0001] The utility model relates to shaft workpiece machining technical field especially relates to a shaft workpiece machining fixture. BACKGROUND

[0002] When using a grinding machine to finish machining a shaft workpiece, it is crucial to ensure the coaxiality of the shaft workpiece. Coaxiality deviation will directly affect the machining precision and quality, and further affect the performance of the final machined product.

[0003] The traditional method adjusts manually and checks multiple times to ensure the coaxiality of the shaft workpiece. This method is not only inefficient, but also easily affected by human factors, leading to unstable machining precision. In addition, for shaft workpieces of different sizes and shapes, different fixtures need to be replaced or complex adjustments need to be made, which is low in processing flexibility and efficiency.

[0004] Therefore, it is urgent to propose a shaft workpiece machining fixture to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of shaft workpiece machining fixture, the coaxiality of shaft workpiece can be guaranteed by once clamping, improve the machining precision of shaft workpiece, and it is suitable for multiple sizes of shaft workpiece, and the universality is higher.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Shaft workpiece machining fixture, comprising:

[0008] Base, for being connected with the workbench of grinding machine, the base is equipped with guide portion, the guide portion is used to determine the machining direction and center position of shaft workpiece;

[0009] Limiting piece, detachably connected with the base, the limiting piece is equipped with V-shaped groove extending along the direction perpendicular to the base, part of the shaft workpiece is installed in the V-shaped groove;

[0010] Fixed part, detachably connected with the limiting piece, the fixed part is used to fix the shaft workpiece in the V-shaped groove.

[0011] Optionally, the guide portion is arranged opposite to the V-shaped groove.

[0012] Optionally, the base is circular plate structure, the edge of the circular plate structure is equipped with long strip-shaped opening groove, and the opening groove is the guide portion.

[0013] Optionally, the fixed part comprises:

[0014] The fixed plate is detachably connected to the limiting piece at two ends close to two sides of the V-shaped groove.

[0015] The pressing piece is adjustably arranged on the fixed plate, and the pressing piece can press the shaft workpiece in the V-shaped groove.

[0016] Optionally, the fixed plate is provided with a threaded hole, and the pressing piece is a jackscrew which is threadedly connected to the threaded hole.

[0017] Optionally, a plurality of fixed pieces are arranged along the extension direction of the V-shaped groove.

[0018] Optionally, the two ends of the fixed plate are provided with first connecting holes, the limiting piece is provided with second connecting holes corresponding to the first connecting holes, and a first connecting piece is arranged through the first connecting holes and the second connecting holes to connect the fixed plate to the limiting piece.

[0019] Optionally, the base is provided with a fixed groove on the side away from the limiting piece, and the fixed groove is used for inserting a fixed column on the workbench.

[0020] Optionally, the base is further provided with a positioning hole in communication with the fixed groove, a second connecting piece is arranged through the positioning hole and connected to the shaft workpiece, and the position of the limiting piece on the base relative to the positioning hole is adjustable to make the V-shaped groove abut against the outer peripheral wall of the shaft workpiece.

[0021] Optionally, the limiting piece is provided with a third connecting hole in the shape of a long strip, the base is provided with a fourth connecting hole, and a third connecting piece is arranged through the third connecting hole and the fourth connecting hole.

[0022] The shaft workpiece machining clamp has the following beneficial effects:

[0023] The shaft workpiece machining clamp comprises a base, a limiting piece and a fixed piece. Before machining the shaft workpiece, the shaft workpiece is first placed in the V-shaped groove of the limiting piece, and then the fixed piece is installed on the limiting piece to fix the shaft workpiece in the V-shaped groove. That is, the V-shaped groove on the limiting piece and the fixed piece can reliably fix the shaft workpiece and limit the coaxiality of the shaft workpiece, improve the consistency of machining precision and machining quality of the shaft workpiece, and do not need to repeatedly adjust the clamping of the shaft workpiece, thereby improving the machining efficiency of the shaft workpiece. Moreover, the V-shaped groove can be compatible with shaft workpieces of various diameters, has high universality, and improves the flexibility of machining the shaft workpiece.

[0024] The limiting piece and the base are detachably connected, which facilitates selecting a suitable limiting piece according to the length and size of the shaft workpiece, and further improves the universality of the shaft workpiece machining clamp.

[0025] The machining direction and the center position of the shaft workpiece are guided by setting the guide part on the base, so that the machining path of the grinding machine is facilitated to be set, and the machining precision is facilitated to be improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.

[0027] Figure 1 is an assembly drawing of the shaft workpiece machining clamp and the shaft workpiece provided by the embodiments of the present application;

[0028] Figure 2 is Figure 1 is a schematic view after the fixing member is hidden;

[0029] Figure 3 is Figure 2 is a schematic view after the shaft workpiece is hidden;

[0030] Figure 4 is a structural schematic view of the fixing member in one view provided by the embodiments of the present application;

[0031] Figure 5 is a structural schematic view of the fixing member in another view provided by the embodiments of the present application;

[0032] Figure 6 is a structural schematic view of the base provided by the embodiments of the present application.

[0033] In the drawings:

[0034] 10, shaft workpiece;

[0035] 100, base; 110, guide part; 120, fixing groove; 130, positioning hole; 140, boss;

[0036] 200, limiting member; 210, V-shaped groove; 220, second connecting hole; 230, third connecting hole; 240, third connecting member;

[0037] 300, fixing member; 310, fixing plate; 311, threaded hole; 312, first connecting hole; 320, pressing member; 330, first connecting member. DETAILED DESCRIPTION

[0038] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely intended to explain the utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0039] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] In the description of the embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used to distinguish in description, and have no special meaning.

[0042] The embodiment provides a shaft workpiece machining clamp, which can guarantee the coaxiality of the shaft workpiece through one-time clamping, improves the machining precision of the shaft workpiece, and is suitable for shaft workpieces of various sizes, and has high universality.

[0043] Specifically, as Figures 1-3As shown, the shaft workpiece machining clamp comprises a base 100, a limiting piece 200 and a fixing piece 300. The base 100 is used to be connected with the workbench of the grinding machine, and the base 100 is provided with a guide part 110 for determining the machining direction and the center position of the shaft workpiece 10. The limiting piece 200 is detachably connected with the base 100, and the limiting piece 200 is provided with a V-shaped groove 210 extending in the direction perpendicular to the base 100, and part of the shaft workpiece 10 is mounted in the V-shaped groove 210. The fixing piece 300 is detachably connected with the limiting piece 200, and the fixing piece 300 is used to fix the shaft workpiece 10 in the V-shaped groove 210.

[0044] The method for fixing the shaft workpiece 10 using the shaft workpiece machining clamp is as follows:

[0045] Firstly, part of the shaft workpiece 10 is placed in the V-shaped groove 210, and the end of the shaft workpiece 10 to be machined is ensured to protrude from the top end of the limiting piece 200, so as to facilitate the subsequent machining of the grinding machine;

[0046] Then, the fixing piece 300 is mounted on the limiting piece 200, and the fixing piece 300 and the V-shaped groove 210 can clamp and fix the shaft workpiece 10.

[0047] Finally, the base 100 of the shaft workpiece machining clamp is fixed on the workbench of the grinding machine, and the center position and the machining direction of the shaft workpiece 10 are determined based on the guide part 110 on the base 100, and the movement path of the grinding wheel on the grinding machine is determined according to the center position and the machining direction of the shaft workpiece 10, and then the grinding machine is started to machine.

[0048] The shaft workpiece machining clamp provided in the embodiment can reliably support the shaft workpiece 10 in the axial direction through the V-shaped groove 210 on the limiting piece 200, which is beneficial to ensure the coaxiality of the shaft workpiece 10 and improve the machining precision of the shaft workpiece 10. After the shaft workpiece 10 is installed, the position of the shaft workpiece 10 does not need to be adjusted repeatedly to meet the coaxiality requirement, which on the one hand saves the time for installing the shaft workpiece 10 and further improves the machining efficiency of the shaft workpiece 10, and on the other hand, the coaxiality of the shaft workpiece 10 depends on the machining precision of the V-shaped groove 210 rather than manual operation, which improves the consistency of the machining quality of the shaft workpiece 10.

[0049] In addition, the V-shaped groove 210 can be compatible with shaft workpieces 10 of various diameters, which has high universality and improves the flexibility of machining the shaft workpiece 10. Moreover, the limiting piece 200 is detachably connected with the base 100, which facilitates the selection of appropriate limiting pieces 200 according to the length and size of the shaft workpiece 10, and further improves the universality of the shaft workpiece machining clamp.

[0050] The guiding part 110 is arranged on the base 100 to guide the machining direction and the center position of the shaft workpiece 10, which is convenient for setting the machining path of the grinder and improves the machining precision.

[0051] It is worth mentioning that the direction of the guiding part 110 can be the same as the direction of one side of the shape to be machined on the shaft workpiece 10. For example, if a cuboid is to be machined on the top end of the shaft workpiece 10, the direction of the guiding part 110 can be set as the length direction of the cuboid or the width direction of the cuboid.

[0052] It is worth mentioning that the position of the shaft workpiece 10 can be determined by the position of the guiding part 110, the position of the V-shaped groove 210 and the diameter of the shaft workpiece 10. Figures 1-3 Optionally, in one possible embodiment, continuing to refer to , the guiding part 110 is arranged opposite to the V-shaped groove 210. In this way, the center position of the shaft workpiece 10 is determined more accurately, and the machining stability of the shaft workpiece 10 is higher. Specifically, in this case, the distance between the guiding part 110 and the center of the shaft workpiece 10 can be calculated according to the distance between the guiding part 110 and the bottom of the V-shaped groove 210 and the opening angle of the V-shaped groove 210, and the center position of the shaft workpiece 10 is determined.

[0053] Optionally, continuing to refer to Figures 1-3 , in the embodiment, the base 100 is a circular plate structure, and a long strip-shaped opening groove is arranged at the edge of the circular plate structure, and the opening groove is the guiding part 110. The base 100 has a simple structure, is convenient to machine and has a low cost.

[0054] Optionally, as shown in Figure 1 , Figure 4 and Figure 5 , the fixing part 300 includes a fixing plate 310 and a pressing part 320. The two ends of the fixing plate 310 are detachably connected to the two sides of the limiting part 200 close to the V-shaped groove 210. The pressing part 320 is adjustably arranged on the fixing plate 310, and the pressing part 320 can press the shaft workpiece 10 against the V-shaped groove 210.

[0055] The steps of using the fixing part 300 to fix the shaft workpiece 10 in the V-shaped groove 210 of the limiting part 200 are as follows:

[0056] First, the two ends of the fixing plate 310 are installed on the two sides of the limiting part 200 close to the V-shaped groove 210;

[0057] Then, the position of the pressing part 320 is adjusted so that the pressing part 320 is in contact with the outer peripheral wall of the shaft workpiece 10 and pushes the shaft workpiece 10 to abut against the groove wall of the V-shaped groove 210;

[0058] Finally, the position of the pressing member 320 is fixed.

[0059] The fixing member 300 has simple structure and is convenient to assemble, and through the pressing member 320, the stability of the shaft workpiece 10 can be ensured, and the fixing member 300 is applicable to shaft workpieces 10 with different diameters, and has high universality.

[0060] Optionally, in a possible embodiment, the fixing plate 310 is provided with a threaded hole 311, and the pressing member 320 is a jackscrew, and the jackscrew is provided with an external thread, and the jackscrew is screwed with the threaded hole 311 through the external thread. In this way, rotating the jackscrew can adjust the position of the jackscrew, so that the jackscrew is close to or away from the shaft workpiece 10.

[0061] It can be understood that the position of the threaded hole 311 should be opposite to the position of the V-shaped groove 210.

[0062] Further, since some shaft workpieces 10 are long in length, the height of the limiting member 200 should be adapted to the shaft workpieces 10 long in length. In this case, in order to improve the reliability of the fixing of the shaft workpiece 10, a plurality of fixing members 300 can be provided, and the plurality of fixing members 300 can be arranged at intervals along the extension direction of the V-shaped groove 210.

[0063] Optionally, continuing to refer to Figures 2-4 The first connecting hole 312 can be arranged at both ends of the fixing plate 310, and correspondingly, the second connecting hole 220 corresponding to the first connecting hole 312 is arranged on the limiting member 200, and the first connecting member 330 is arranged through the first connecting hole 312 and the second connecting hole 220 to connect the fixing plate 310 to the limiting member 200. The fixing plate 310 is installed on the limiting member 200 through the first connecting hole 312, the second connecting hole 220 and the first connecting member 330, which has simple structure and is convenient to install and dismount the fixing plate 310.

[0064] Optionally, the first connecting member 330 can be a bolt, and correspondingly, the second connecting hole 220 is provided with an internal thread, and the bolt is screwed with the first connecting hole 312 and the second connecting hole 220.

[0065] Further, as shown in Figure 6 The side of the base 100 away from the limiting member 200 is provided with a fixing groove 120, and the fixing groove 120 is used for plug-in connection with a fixing column on a workbench. The base 100 is fixed on the workbench of the grinding machine through the cooperation of the fixing groove 120 and the fixing column, which has simple structure and is convenient to install.

[0066] Optionally, continuing to refer to Figure 6In order to improve the assembly reliability between the base 100 and the workbench, an assembly groove can be arranged on the workbench, and a boss 140 is arranged on the side of the base 100 away from the limiting piece 200, and the boss 140 is inserted into the assembly groove.

[0067] In the embodiment, the fixing column is arranged in the middle of the assembly groove, and the fixing groove 120 is arranged in the middle of the boss 140.

[0068] Further, continuing to refer to Figure 6 In a possible embodiment, a positioning hole 130 in communication with the fixing groove 120 can be arranged on the base 100, and the second connecting piece is arranged through the positioning hole 130 and connected with the shaft workpiece 10. In this way, the fixing effect of the shaft workpiece machining clamp on the shaft workpiece 10 can be improved. In addition, the position of the limiting piece 200 on the base 100 relative to the positioning hole 130 is adjustable, so that for shaft workpieces 10 of different diameters, the position of the limiting piece 200 can be adjusted to ensure that the V-shaped groove 210 abuts against the outer peripheral wall of the shaft workpiece 10, thereby ensuring the coaxiality of the shaft workpiece 10.

[0069] It should be noted that the above scheme should ensure that the diameter of the shaft workpiece 10 is greater than the diameter of the positioning hole 130. If the diameter of the shaft workpiece 10 is equal to the inner diameter of the positioning hole 130, the shaft workpiece 10 can be directly inserted into the positioning hole 130. In this case, the center position of the shaft workpiece 10 is the same as the center position of the positioning hole 130.

[0070] Optionally, continuing to refer to Figure 1 and Figure 2 In a possible embodiment, a third connecting hole 230 in the shape of a long strip is arranged on the limiting piece 200, and a fourth connecting hole (not shown in the figure) is arranged on the base 100, and a third connecting piece 240 is arranged through the third connecting hole 230 and connected with the fourth connecting hole.

[0071] When the position of the limiting piece 200 needs to be adjusted, the third connecting piece 240 can be disconnected from the fourth connecting hole, and then the limiting piece 200 can be pushed towards or away from the positioning hole 130. When the position of the limiting piece 200 is adjusted to the right position, the third connecting piece 240 is connected with the fourth connecting hole again to fix the limiting piece 200. The structure is simple, and the position of the limiting piece 200 is easy to adjust.

[0072] Optionally, the third connecting piece 240 can be a bolt, and the fourth connecting hole needs to be provided with internal threads. The bolt is arranged through the third connecting hole 230 and screwed with the fourth connecting hole. By rotating the bolt, the limiting piece 200 can be fixed or unfixed.

[0073] Of course, for the technical scheme in which the position of the limiting piece 200 does not need to be adjusted, such as Figure 3As shown, the third connecting hole 230 can also be a circular hole.

[0074] Obviously, the above embodiments of the present application are merely exemplary and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the scope of the present application. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A machining fixture for shaft-type workpieces, characterized in that, The application relates to a base (100) for connecting with a workbench of a grinding machine, wherein a guide part (110) is arranged on the base (100) and used for determining the machining direction and the central position of a shaft workpiece (10); a limiting part (200) is detachably connected with the base (100), wherein a V-shaped groove (210) extending in a direction perpendicular to the base (100) is arranged on the limiting part (200), and a part of the shaft workpiece (10) is arranged in the V-shaped groove (210); and a fixing part (300) is detachably connected with the limiting part (200), and used for fixing the shaft workpiece (10) in the V-shaped groove (210). The guide part (110) is arranged opposite to the V-shaped groove (210). The base (100) is a circular plate structure, and a long-strip-shaped open groove is arranged at the edge of the circular plate structure, and the open groove is the guide part (110). The fixing part (300) comprises:

2. The shaft workpiece machining jig according to claim 1, characterized by, A fixing plate (310) is detachably connected at both ends of the fixing plate (310) to both sides of the limiting part (200) close to the V-shaped groove (210); and a pressing part (320) is adjustably arranged on the fixing plate (310), and the pressing part (320) can press the shaft workpiece (10) in the V-shaped groove (210).

3. The shaft workpiece machining jig according to claim 1, characterized by, The fixing plate (310) is provided with a threaded hole (311), the pressing part (320) is a jackscrew, and the jackscrew is threadedly connected to the threaded hole (311).

4. The shaft workpiece machining jig according to claim 1, characterized by, The fixing part (300) is provided with a plurality of fixing parts (300) which are arranged at intervals along the extension direction of the V-shaped groove (210). Both ends of the fixing plate (310) are provided with first connecting holes (312), the limiting part (200) is provided with second connecting holes (220) corresponding to the first connecting holes (312) in one-to-one correspondence, a first connecting part (330) is arranged in the first connecting holes (312) and connected with the second connecting holes (220), so as to mount the fixing plate (310) on the limiting part (200). The side, away from the limiting part (200), of the base (100) is provided with a fixing groove (120) used for being inserted with a fixing column on the workbench.

5. The shaft workpiece machining jig according to claim 4, characterized by The base (100) is further provided with a positioning hole (130) communicated with the fixing groove (120), a second connecting part is arranged in the positioning hole (130) and connected with the shaft workpiece (10), and the position of the limiting part (200) on the base (100) is adjustable relative to the positioning hole (130), so that the V-shaped groove (210) is abutted with the peripheral wall of the shaft workpiece (10).

6. The shaft workpiece machining jig according to claim 4, characterized by The limiting part (200) is provided with a long-strip-shaped third connecting hole (230), and the base (100) is provided with a fourth connecting hole, and a third connecting part (240) is arranged in the third connecting hole (230) and connected with the fourth connecting hole.

7. The shaft workpiece machining jig according to claim 4, characterized by ​ 8. The shaft workpiece machining jig according to any one of claims 1 to 7, characterized by, ​ 9. The shaft workpiece machining jig according to claim 8, characterized by, ​ 10. The shaft workpiece machining jig according to claim 9, characterized by, ​

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