Motor base lathing tool mould

Abstract

The utility model relates to a motor base lathing tool mould which is not only good in applicability, but also capable of guaranteeing the machining coaxiality of a motor base and improving the machining efficiency of the motor base, and meanwhile good in using effect. The symmetrical center line of the circular through hole coincides with the symmetrical center line of the circular base block, the diameter of the circular through hole is smaller than that of the circular base block, and a first annular groove, a second annular groove and a third annular groove are formed in the upper end face of the circular base block. A positioning pin hole, a first positioning pin hole, a second positioning pin hole and a third positioning pin hole are formed in the upper end face of the circular base block, and the hole center of the positioning pin hole, the hole center of the first positioning pin hole, the hole center of the second positioning pin hole and the hole center of the third positioning pin hole are all located on the same radius line of the circular base block. The clamping fixture has the advantages that the clamping fixture is good in applicability, the machining coaxiality of the motor base can be guaranteed, meanwhile, the machining efficiency of the motor base can be improved, and meanwhile the using effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of motor base manufacturing technology, specifically relating to a machining fixture for motor bases. Background Technology

[0002] CN 201994796 U, entitled "A Single-Step Turning Positioning Device for a Motor Base with Two Stops," comprises a base, a stop positioning wheel, and standard bolts. The rear end of the stop positioning wheel is fixed to the lathe worktable, and the base is fixed to the front end of the stop positioning wheel with four standard bolts. The drawback is that this single-step turning positioning device for a motor base with two stops can only be used to machine motor bases with specific stop dimensions, resulting in relatively poor applicability. Utility Model Content

[0003] Design objective: To avoid the shortcomings of the prior art, this design aims to create a machining fixture for motor bases that is not only highly applicable but also ensures the coaxiality of the motor base during machining, improves the machining efficiency of the motor base, and has good performance.

[0004] Design scheme: To achieve the above design objectives.

[0005] 1. The upper surface of the circular base block is provided with a circular through hole that extends through both the upper and lower surfaces of the circular base block. The center line of symmetry of the circular through hole coincides with the center line of symmetry of the circular base block, and the diameter of the circular through hole is smaller than the diameter of the circular base block. The upper surface of the circular base block is provided with a first annular groove, a second annular groove, and a third annular groove. The center lines of symmetry of the first annular groove, the second annular groove, and the third annular groove all coincide with the center line of symmetry of the circular through hole. The diameter of the first annular groove is larger than the diameter of the circular through hole. The second annular groove... The diameter of the groove is larger than the diameter of the first annular groove, and the diameter of the third annular groove is larger than the diameter of the second annular groove. The upper surface of the circular base is provided with positioning pin holes, positioning pin hole one, positioning pin hole two, and positioning pin hole three. The center of each of the positioning pin holes is located on the same radius line of the circular base. Positioning pin hole one is located outside the positioning pin hole, positioning pin hole two is located outside the positioning pin hole one, and positioning pin hole three is located outside the positioning pin hole two. This design is one of the technical features of this utility model. The purpose of this design is as follows: First, the upper surface of the circular base block has a circular through hole that extends through both the upper and lower surfaces of the circular base block. The center line of symmetry of the circular through hole coincides with the center line of symmetry of the circular base block, and the diameter of the circular through hole is smaller than the diameter of the circular base block. The upper surface of the circular base block has a first annular groove, a second annular groove, and a third annular groove. The center lines of symmetry of the first, second, and third annular grooves all coincide with the center line of symmetry of the circular through hole. The diameter of the first annular groove is larger than the diameter of the circular through hole, the diameter of the second annular groove is larger than the diameter of the first annular groove, and the diameter of the third annular groove is larger than the diameter of the second annular groove. The upper surface of the circular base block has positioning pin holes, positioning pin hole one, positioning pin hole two, and positioning pin hole three. This allows the motor base to be machined with a motor base machining tooling. After fitting the fixture, a "one-cut" process is used to complete the precision machining of one end stop and the iron core stop in one clamping, ensuring the coaxiality of the stop and the iron core stop of the machine base, that is, good coaxiality of the motor base machining. In addition, a single motor base machining fixture can machine motor bases with four different stop sizes, making it more versatile. Secondly, the center of the positioning pin hole, the center of positioning pin hole one, the center of positioning pin hole two, and the center of positioning pin hole three are all located on the same radius line of the circular base block. Positioning pin hole one is located outside the positioning pin hole, positioning pin hole two is located outside the positioning pin hole one, and positioning pin hole three is located outside the positioning pin hole two. The setting of positioning pin holes, positioning pin hole one, positioning pin hole two, and positioning pin hole three on the same radius line of the circular base block can greatly reduce the tool setting and alignment time during machining when the fixture is used with positioning pins, thereby improving the machining efficiency of the motor base.

[0006] 2. The upper surface of the circular base block is provided with multiple chip cleaning grooves. One end of each chip cleaning groove extends inward and communicates with a circular through hole, while the other end extends outward and communicates with the outer wall of the circular base block. The chip cleaning grooves sequentially pass through the first annular groove, the second annular groove, and the third annular groove. This design is the second technical feature of this utility model. The purpose of this design is that the upper surface of the circular base block is provided with multiple chip cleaning grooves. One end of each chip cleaning groove extends inward and communicates with a circular through hole, while the other end extends outward and communicates with the outer wall of the circular base block. The chip cleaning grooves sequentially pass through the first annular groove, the second annular groove, and the third annular groove. The chip cleaning grooves facilitate the cleaning of chips located on the upper surface of the machining fixture for an electric motor base car, thereby improving the usability of the machining fixture for an electric motor base car.

[0007] 3. The upper surface of the circular base block is provided with multiple mounting through holes, which are located outside the third annular groove. The centers of the multiple mounting through holes are all located on the circumference of the same circle. The mounting through holes are countersunk through holes, which is the third technical feature of this utility model. The purpose of this design is that the upper surface of the circular base block is provided with multiple mounting through holes, which are located outside the third annular groove. The centers of the multiple mounting through holes are all located on the circumference of the same circle. The mounting through holes are countersunk through holes. The countersunk through holes facilitate the assembly of a motor base lathe machining tooling fixture with the vertical lathe plate via bolts.

[0008] 4. The design of having two M16 threaded holes on the upper surface of the circular base block is the fourth technical feature of this utility model. The purpose of this design is that the upper surface of the circular base block has two M16 threaded holes, and the M16 threaded holes 12 are used to install lifting rings, thereby facilitating the hoisting of a tooling fixture for machining a motor base lathe.

[0009] 5. The design of having a circular groove on the lower end face of the circular base block, with the center line of symmetry of the circular groove coinciding with the center line of symmetry of the circular through hole, is the fifth technical feature of this utility model. The purpose of this design is that the circular groove on the lower end face of the circular base block, with the center line of symmetry of the circular groove coinciding with the center line of symmetry of the circular through hole, improves the flatness of the lower end face of the machining fixture for a motor base lathe. When this machining fixture is clamped onto the vertical lathe's main platen, it improves the coaxiality between the machining fixture and the rotation center of the machine tool's main platen, thereby further improving the machining coaxiality of the stop and core stop positions in the motor base.

[0010] 6. The lower end face of the circular base block is provided with multiple chip removal grooves. One end of each chip removal groove extends inward and communicates with the circular through hole, while the other end extends outward and communicates with the outer wall surface of the circular base block. The design that the depth of the chip removal groove is greater than the depth of the circular groove is the sixth technical feature of this utility model. The purpose of this design is that the lower end face of the circular base block is provided with multiple chip removal grooves. One end of each chip removal groove extends inward and communicates with the circular through hole, while the other end extends outward and communicates with the outer wall surface of the circular base block. The depth of the chip removal groove is greater than the depth of the circular groove. In this way, the iron chips that fall onto the vertical lathe plate through the circular through hole can be discharged through multiple chip removal grooves, thereby improving the usability of the machining fixture for an electric motor base lathe.

[0011] Technical Solution: A machining fixture for an electric motor base lathe includes a circular base block. The upper surface of the circular base block has a circular through-hole that extends through both the upper and lower surfaces of the circular base block. The center line of symmetry of the circular through-hole coincides with the center line of symmetry of the circular base block, and the diameter of the circular through-hole is smaller than the diameter of the circular base block. The upper surface of the circular base block has a first annular groove, a second annular groove, and a third annular groove. The center lines of symmetry of the first, second, and third annular grooves all coincide with the center line of symmetry of the circular through-hole. The diameter of the groove is larger than the diameter of the circular through hole. The diameter of the second annular groove is larger than the diameter of the first annular groove. The diameter of the third annular groove is larger than the diameter of the second annular groove. The upper end face of the circular base block is provided with positioning pin holes, positioning pin hole one, positioning pin hole two, and positioning pin hole three. The center of each of the positioning pin holes is located on the same radius line of the circular base block. Positioning pin hole one is located outside the positioning pin hole, positioning pin hole two is located outside the positioning pin hole one, and positioning pin hole three is located outside the positioning pin hole three.

[0012] Compared with the prior art, the present invention provides a machining fixture for motor bases that not only has good applicability but also ensures the coaxiality of the motor base during machining, while improving the machining efficiency of the motor base and achieving good results. Attached Figure Description

[0013] Figure 1 This is a top-view schematic diagram of the three-dimensional structure of a machining fixture for an electric motor base.

[0014] Figure 2 This is a three-dimensional structural diagram of a machining fixture for an electric motor base machine, viewed from below. Detailed Implementation

[0015] Example 1: Refer to Appendix Figures 1-2A machining fixture for an electric motor base includes a circular base block 1. The upper surface of the circular base block 1 has a circular through hole 2 that extends through both the upper and lower surfaces of the circular base block 1. The center line of symmetry of the circular through hole 2 coincides with the center line of symmetry of the circular base block 1, and the diameter of the circular through hole 2 is smaller than the diameter of the circular base block 1. The upper surface of the circular base block 1 has a first annular groove 3, a second annular groove 4, and a third annular groove 5. The center lines of symmetry of the first annular groove 3, the second annular groove 4, and the third annular groove 5 all coincide with the center line of symmetry of the circular through hole 2. The diameter of the first annular groove 3 is smaller than the diameter of the circular base block 1. The diameter of the second annular groove 4 is greater than the diameter of the first annular groove 3, and the diameter of the third annular groove 5 is greater than the diameter of the second annular groove 4. The upper end face of the circular base block 1 is provided with positioning pin holes 6, 7, 8, and 9. The center of the positioning pin hole 6, the center of the positioning pin hole 7, the center of the positioning pin hole 8, and the center of the positioning pin hole 9 are all located on the same radius line of the circular base block 1. The positioning pin hole 7 is located outside the positioning pin hole 6, the positioning pin hole 8 is located outside the positioning pin hole 7, and the positioning pin hole 9 is located outside the positioning pin hole 2.

[0016] The upper surface of the circular base block 1 is provided with multiple iron filings cleaning grooves 10. One end of the iron filings cleaning groove 10 extends inward and communicates with the circular through hole 2, and the other end of the iron filings cleaning groove 10 extends outward and communicates with the outer wall surface of the circular base block 1. The iron filings cleaning groove 10 passes through the first annular groove 3, the second annular groove 4 and the third annular groove 5 in sequence.

[0017] The upper surface of the circular base block 1 is provided with multiple mounting through holes 11, which are located outside the third annular groove 5. The centers of the multiple mounting through holes 11 are all located on the circumference of the same circle. The mounting through holes 11 are countersunk through holes. The upper surface of the circular base block 1 is provided with two M16 threaded holes 12, which are used to install lifting rings.

[0018] The lower end face of the circular base block 1 is provided with a circular groove 13, and the center line of symmetry of the circular groove 13 coincides with the center line of symmetry of the circular through hole 2. The lower end face of the circular base block 1 is provided with multiple chip removal grooves 14. One end of each chip removal groove 14 extends inward and communicates with the circular through hole 2, while the other end extends outward and communicates with the outer wall of the circular base block 1. The depth of the chip removal groove 14 is greater than the depth of the circular groove 13. A machining fixture for a motor base lathe incorporates base stop dimensions with center heights of 250mm, 315mm, and 355mm, offering good applicability.

[0019] A method for using a machining fixture for motor bases involves rough turning one end of the motor base to be machined to form a stop, and then placing the rough-turned stop onto the fixture; subsequently, finish turning the one end stop and the core retainer of the motor base to be machined; then, placing the finish-turned stop onto the fixture and finish turning the rough-turned stop, thus completing the machining of the two end stops and the core retainer of the motor base.

[0020] It should be understood that although the above embodiments provide a relatively detailed textual description of the design concept of this utility model, these textual descriptions are merely simple textual descriptions of the design concept of this utility model, and not limitations on the design concept of this utility model. Any combination, addition, or modification that does not exceed the design concept of this utility model shall fall within the protection scope of this utility model.

Claims

1. A machining fixture for an electric motor base lathe, comprising a circular base block (1), characterized in that: The upper end face of the circular base block (1) is provided with a circular through hole (2) that penetrates both the upper and lower end faces of the circular base block (1). The center line of symmetry of the circular through hole (2) coincides with the center line of symmetry of the circular base block (1), and the diameter of the circular through hole (2) is smaller than the diameter of the circular base block (1). The upper end face of the circular base block (1) is provided with a first annular groove (3), a second annular groove (4), and a third annular groove (5). The center lines of symmetry of the first annular groove (3), the second annular groove (4), and the third annular groove (5) all coincide with the center line of symmetry of the circular through hole (2). The diameter of the first annular groove (3) is larger than the diameter of the circular through hole (2). The diameter of the second annular groove (4) is greater than the diameter of the first annular groove (3), and the diameter of the third annular groove (5) is greater than the diameter of the second annular groove (4). The upper end face of the circular base block (1) is provided with positioning pin holes (6), positioning pin hole one (7), positioning pin hole two (8) and positioning pin hole three (9). The center of the positioning pin hole (6), the center of the positioning pin hole one (7), the center of the positioning pin hole two (8) and the center of the positioning pin hole three (9) are all located on the same radius line of the circular base block (1). The positioning pin hole one (7) is located outside the positioning pin hole (6), the positioning pin hole two (8) is located outside the positioning pin hole one (7), and the positioning pin hole three (9) is located outside the positioning pin hole two (8).

2. The machining fixture for an electric motor base lathe according to claim 1, characterized in that: The upper surface of the circular base block (1) is provided with multiple iron filings cleaning grooves (10). One end of the iron filings cleaning groove (10) extends inward to communicate with the circular through hole (2), and the other end of the iron filings cleaning groove (10) extends outward to communicate with the outer wall surface of the circular base block (1). The iron filings cleaning groove (10) passes through the first annular groove (3), the second annular groove (4), and the third annular groove (5) in sequence.

3. A machining fixture for an electric motor base lathe according to claim 1 or 2, characterized in that: The upper surface of the circular base block (1) is provided with multiple mounting through holes (11), and the multiple mounting through holes (11) are located outside the third annular groove (5). The centers of the multiple mounting through holes (11) are all located on the circumference of the same circle.

4. The machining fixture for an electric motor base lathe according to claim 3, characterized in that: The mounting through hole (11) is a countersunk through hole.

5. The machining fixture for an electric motor base lathe according to claim 1, characterized in that: The upper surface of the circular base block (1) is provided with two M16 threaded holes (12).

6. The machining fixture for an electric motor base lathe according to claim 1, characterized in that: The lower end face of the circular base block (1) is provided with a circular groove (13), and the center line of the circular groove (13) coincides with the center line of the circular through hole (2).

7. A machining fixture for an electric motor base lathe according to claim 1 or 6, characterized in that: The lower end face of the circular base block (1) is provided with a plurality of chip removal grooves (14). One end of the chip removal groove (14) extends inward to communicate with the circular through hole (2), and the other end of the chip removal groove (14) extends outward to communicate with the outer wall surface of the circular base block (1). The depth of the chip removal groove (14) is greater than the depth of the circular groove (13).

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