Finishing machine pressing device for motor processing

Abstract

The utility model belongs to the technical field of motor production equipment, and relates to a finishing machine pressing device for motor processing, which comprises a power device, a pressing machine base assembly and a pressing machine sliding assembly, and is characterized in that the pressing machine base assembly comprises a front base plate, a rear base plate and a plurality of guide rods fixedly connected between the front base plate and the rear base plate; the pressing machine sliding assembly comprises a pressing outer sleeve sliding on the guide rod, a through hole allowing the pressing outer sleeve to penetrate through is formed in the front base plate, a pressing inner sleeve is coaxially arranged on the inner side of the front end of the pressing outer sleeve, and the pressing inner sleeve and the pressing outer sleeve are rotationally connected through a pressing bearing. An outer ring of the pressing bearing is in interference fit with the pressing outer sleeve, an inner ring of the pressing bearing is in interference fit with the pressing inner sleeve, and the front end face of the pressing inner sleeve exceeds the front end face of the pressing outer sleeve and forms a pressing end face abutting against the motor to be machined. The finishing machine pressing device for motor processing provided by the utility model can eliminate the influence of the bearing clearance and improve the processing precision and the processing stability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of motor production equipment relates to a finishing machine pressure device for motor machining. BACKGROUND

[0002] In the production of motor, the runout of motor has very strict requirements. Especially for some high-end motor, its machining precision needs to reach 5 silk or so to meet its requirements. This machining precision is still achievable for the machining of individual parts, but after assembling these parts, the motor cannot meet its requirements. In order to solve this technical problem, the technical personnel adopts a new way to produce motor: when the parts are machined, the allowance is left first, and then reprocessed after assembly, which can meet the precision requirement. When reprocessing, finishing machine can be used.

[0003] But in actual production, it is found that for small motor, its precision requirement can be easily met, but for large and medium-sized motor, its machining precision is very unstable. After long-term research and repeated experiments, the technical personnel finally found that the cause of error is the bearing play itself. Due to the instability of the play, the machining precision is unstable. In view of this, a new device is needed to solve the influence of bearing play. UTILITY MODEL CONTENT

[0004] The utility model provides a finishing machine pressure device for motor machining can eliminate the influence of bearing play, improve machining precision and machining stability in view of the shortage of prior art.

[0005] To solve the above technical problems, the purpose of the utility model is realized by the following technical scheme:

[0006] A finishing machine pressure device for motor machining, including power device, press base assembly and press slip assembly, the press base assembly includes front base plate, rear base plate and a plurality of guide rods fixed between the front base plate and the rear base plate, the press slip assembly includes a pressure sleeve that slides on the guide rod, the front base plate is provided with a through hole for the pressure sleeve to pass through, the front end of the pressure sleeve is coaxially provided with a pressure sleeve, the pressure sleeve and the pressure sleeve are connected through the pressure bearing, the outer ring of the pressure bearing is interference fit with the pressure sleeve, and the inner ring is interference fit with the pressure sleeve, the front end face of the pressure sleeve is beyond the front end face of the pressure sleeve and forms a pressure end face that is in contact with the motor to be machined.

[0007] In the above motor machining finishing machine pressing device, the pressing sleeve includes a sleeve cylinder and a sleeve sliding plate arranged at the rear end of the sleeve cylinder, the sleeve sliding plate is slidably arranged on the guide rod through a linear bearing, the hole diameter of the through hole on the front base plate is larger than the outer diameter of the sleeve cylinder, further, the linear bearing is arranged in the sleeve sliding plate and is axially limited by a pair of linear bearing stop rings.

[0008] In the above motor machining finishing machine pressing device, the rear base plate is provided with a whole machine assembly hole for fixing the pressing device, the front base plate, the rear base plate and the sleeve sliding plate are provided with coaxial guide rod mounting holes.

[0009] In the above motor machining finishing machine pressing device, the front base plate, the rear base plate and the sleeve sliding plate are all rectangular plates, the whole machine assembly hole is provided with four holes and is distributed in a rectangular shape, the guide rod mounting hole is provided with four holes and is distributed in a rectangular shape, the connecting line of the whole machine assembly hole is parallel to the outer contour of the rear base plate, the guide rod mounting hole is arranged in a staggered manner with the whole machine assembly hole, further, the front base plate is circumferentially offset arranged relative to the rear base plate and the sleeve sliding plate, the connecting line of the guide rod mounting hole on the front base plate is parallel to the outer contour of the front base plate.

[0010] In the above motor machining finishing machine pressing device, the power device is a pneumatic cylinder, the axis of the pneumatic cylinder is arranged in parallel with the axis of the pressing sleeve, the cylinder body of the pneumatic cylinder is fixedly connected with the rear base plate, and the piston rod is fixedly connected with the pressing sleeve, of course, the power device can also use other linear driving power devices, such as an electric push rod.

[0011] In the above motor machining finishing machine pressing device, the rear base plate extends downward to form a cylinder body mounting plate, the pressing sleeve extends downward to form a piston rod mounting plate, and the cylinder body and the piston rod of the pneumatic cylinder are respectively mounted on the cylinder body mounting plate and the piston rod mounting plate.

[0012] In the above motor machining finishing machine pressing device, the front end of the pressing sleeve is expanded in diameter to form a bearing mounting seat, and the pressing inner sleeve and the pressing outer sleeve have the same inner diameter size, preferably, a gap is arranged between the rear end face of the pressing inner sleeve and the pressing outer sleeve.

[0013] In the above motor machining finishing machine pressing device, the bearing mounting seat is provided with a front bearing stop ring and a rear bearing limiting step for limiting the front and rear ends of the pressing bearing outer ring, and the pressing inner sleeve is provided with a front bearing limiting step and a rear bearing stop ring for limiting the front and rear ends of the pressing bearing inner ring.

[0014] Compared with the prior art, the motor machining finishing machine pressing device has the following beneficial effects:

[0015] The utility model provides a finishing machine pressure device for motor processing, can utilize this pressure device to press the rear cover of motor to be processed when processing, and further press the bearing to eliminate the influence of bearing play, avoid the phenomenon of not enough processing accuracy and unstable processing caused by the existence of bearing play. The utility model discloses through power device drive press slip component, can more conveniently better press motor, can also adapt to different motor models. The utility model discloses through the rotation cooperation of the pressure tight outer sleeve and the pressure tight inner sleeve and forms the press slip component, and the pressure tight inner sleeve can rotate with the motor after pressing, avoids the influence to processing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the perspective drawing of the utility model;

[0017] Figure 2 It is the axial section view of the utility model;

[0018] Figure 3 It is Figure 2 the enlarged view of A of

[0019] Figure 4 It is the perspective drawing of the press base assembly of the utility model;

[0020] Figure 5 It is the perspective drawing of the press slip component of the utility model;

[0021] Reference signs: 1, front base plate; 2, rear base plate; 3, guide rod; 4, pressure tight outer sleeve; 5, pressure tight inner sleeve; 6, pressure tight bearing; 7, outer sleeve; 8, outer sleeve sliding plate; 9, linear bearing; 10, whole machine assembly hole; 11, guide rod mounting hole; 12, air cylinder; 13, cylinder body mounting plate; 14, piston rod mounting plate; 15, bearing mounting seat; 16, front bearing check ring; 17, rear bearing limiting step; 18, front bearing limiting step; 19, rear bearing check ring. DETAILED DESCRIPTION

[0022] The utility model will be further described in conjunction with the specific embodiment of the accompanying drawings, refer to Figures 1-5 :

[0023] The application discloses a pressing device for a finishing machine for motor machining, which comprises a power device, a press base assembly and a press sliding assembly, the press base assembly comprises a front base plate 1, a rear base plate 2 and a plurality of guide rods 3 fixed between the front base plate 1 and the rear base plate 2, the press sliding assembly comprises a pressing outer sleeve 4 sliding on the guide rods 3, a through hole is formed in the front base plate 1 and used for allowing the pressing outer sleeve 4 to pass through, a pressing inner sleeve 5 is coaxially arranged at the front end of the pressing outer sleeve 4, the pressing inner sleeve 5 is rotationally connected with the pressing outer sleeve 4 through a pressing bearing 6, the outer ring of the pressing bearing 6 is in interference fit with the pressing outer sleeve 4, and the inner ring of the pressing bearing 6 is in interference fit with the pressing inner sleeve 5, and the front end surface of the pressing inner sleeve 5 is beyond the front end surface of the pressing outer sleeve 4 and forms a pressing end surface abutting against a motor to be machined.

[0024] The working process of the embodiment is as follows: the pressing device is installed on the rack of the finishing machine, the press sliding assembly is coaxially arranged with the motor to be machined as far as possible, the power device is started, the power device drives the press sliding assembly to move forward until the motor to be machined is pressed, at this time, the front end surface of the pressing inner sleeve 5 abuts against the rear cover of the motor to be machined, during machining, the motor to be machined and the pressing inner sleeve 5 rotate synchronously, the pressing outer sleeve 4, the power device and the press base assembly are kept in a static state, and the pressing inner sleeve 5 rotates freely relative to the pressing outer sleeve 4, since the pressing device of the embodiment presses the rear cover of the motor, the motor housing is in interference fit with the bearing outer ring sleeved on the motor shaft, therefore, pressing the rear cover of the motor is equivalent to pressing the bearing outer ring, so that the bearing clearance cannot affect the machining precision of the motor.

[0025] Further, the sliding structure of the pressing outer sleeve 4 is as follows: the pressing outer sleeve 4 comprises an outer sleeve cylinder 7 and an outer sleeve sliding plate 8 arranged at the rear end of the outer sleeve cylinder 7, the outer sleeve sliding plate 8 is slidingly arranged on the guide rods 3 through linear bearings 9, and the inner diameter of the through hole in the front base plate 1 is larger than the outer diameter of the outer sleeve cylinder 7; further, the linear bearings 9 are arranged in the outer sleeve sliding plate 8 and are axially limited through a pair of linear bearing 9 retaining rings.

[0026] The specific mounting structure of the embodiment is that the rear base plate 2 is provided with a whole machine assembly hole 10 for fixing the pressing device, the front base plate 1, the rear base plate 2 and the outer sleeve sliding plate 8 are provided with coaxial guide rod 3 mounting holes. Further, the front base plate 1, the rear base plate 2 and the outer sleeve sliding plate 8 are all rectangular plates, the whole machine assembly hole 10 is provided with four holes and is distributed in a rectangular shape, the guide rod 3 mounting hole is provided with four holes and is distributed in a rectangular shape, the connecting line of the whole machine assembly hole 10 is parallel to the outer contour of the rear base plate 2, and the guide rod 3 mounting hole is arranged in a staggered manner with the whole machine assembly hole 10. Further, the front base plate 1 is arranged in a circumferential offset manner relative to the rear base plate 2 and the outer sleeve sliding plate 8, and the connecting line of the guide rod 3 mounting hole on the front base plate 1 is parallel to the outer contour of the front base plate 1. The whole pressing device of the embodiment can be mounted on the rack of the finishing machine through the whole machine assembly hole 10, and the guide rod 3 can be assembled on the pressing machine base assembly and the pressing machine sliding assembly through the guide rod 3 mounting hole, and the mounting structure can simultaneously ensure the mounting stability of the whole machine and the sliding structure and further ensure the axial stability of the sliding structure.

[0027] In the embodiment, the power device is a cylinder 12, the axis of the cylinder 12 is arranged in parallel with the axis of the pressing sleeve 4, the cylinder body of the cylinder 12 is fixedly connected with the rear base plate 2, and the piston rod is fixedly connected with the pressing sleeve 4.

[0028] In order to facilitate the installation of the cylinder 12 and the work of the cylinder 12, the rear base plate 2 extends downward to form a cylinder body mounting plate 13, the pressing sleeve 4 extends downward to form a piston rod mounting plate 14, and the cylinder body and the piston rod of the cylinder 12 are respectively mounted on the cylinder body mounting plate 13 and the piston rod mounting plate 14.

[0029] In order to facilitate the installation of the bearing, further, the front end of the pressing sleeve 4 is expanded in diameter to form a bearing mounting seat 15, and the pressing inner sleeve 5 and the pressing sleeve 4 have the same inner diameter size; preferably, a gap is arranged between the rear end surface of the pressing inner sleeve 5 and the pressing sleeve 4.

[0030] By comparing the drawings Figure 3 The limiting structure of the pressing bearing is that the bearing mounting seat 15 is provided with a front bearing retainer 16 and a rear bearing limiting step 17 for limiting the front and rear ends of the outer ring of the pressing bearing 6, and the pressing inner sleeve 5 is provided with a front bearing limiting step 18 and a rear bearing retainer 19 for limiting the front and rear ends of the inner ring of the pressing bearing 6.

[0031] The above embodiment is only a preferred embodiment of the utility model, and does not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered within the protection scope of the utility model.

Claims

1. A finishing machine pressing device for motor processing, characterized in that: The invention comprises a power device, a press base assembly and a press sliding assembly, wherein the press base assembly comprises a front substrate (1), a rear substrate (2) and a plurality of guide rods (3) fixed between the front substrate (1) and the rear substrate (2), the press sliding assembly comprises a pressing sleeve (4) sliding on the guide rod (3), the front substrate (1) is provided with a through hole for the pressing sleeve (4) to pass through, a pressing inner sleeve (5) is coaxially provided on the inner side of the front end of the pressing sleeve (4), the pressing inner sleeve (5) and the pressing sleeve (4) are rotatably connected through a pressing bearing (6), the outer ring of the pressing bearing (6) is interference fit with the pressing sleeve (4), and the inner ring is interference fit with the pressing inner sleeve (5), the front end face of the pressing inner sleeve (5) exceeds the front end face of the pressing sleeve (4) and forms a pressing end face that contacts the motor to be processed.

2. The motor processing finishing machine pressing device according to claim 1, characterized in that: The compression sleeve (4) comprises an outer sleeve (7) and an outer sleeve slide (8) arranged at the rear end of the outer sleeve (7); the outer sleeve slide (8) is slidably arranged on the guide rod (3) via a linear bearing (9); and the inner diameter of the through hole on the front substrate (1) is larger than the outer diameter of the outer sleeve (7).

3. The motor processing finishing machine pressing device according to claim 2, characterized in that: The rear substrate (2) is provided with a whole machine assembly hole (10) for fixing a pressing device, and the front substrate (1), the rear substrate (2) and the outer cover slide plate (8) are provided with coaxial guide rod mounting holes (11).

4. The motor processing finishing machine pressing device according to claim 3, characterized in that: The front substrate (1), the rear substrate (2) and the outer cover slide plate (8) are all rectangular plates. The four whole machine assembly holes (10) are provided and distributed in a rectangular shape. The four guide rod mounting holes (11) are provided and distributed in a rectangular shape. The connecting line of the whole machine assembly holes (10) is parallel to the outer contour of the rear substrate (2). The guide rod mounting holes (11) and the whole machine assembly holes (10) are staggered.

5. The motor processing finishing machine pressing device according to claim 1, characterized in that: The power device is a cylinder (12), the axis of the cylinder (12) is arranged parallel to the axis of the compression sleeve (4), the cylinder body of the cylinder (12) is fixedly connected to the rear base plate (2), and the piston rod is fixedly connected to the compression sleeve (4).

6. The motor processing finishing machine pressing device according to claim 5, characterized in that: The rear base plate (2) extends downwardly to form a cylinder body mounting plate (13), the pressing sleeve (4) extends downwardly to form a piston rod mounting plate (14), and the cylinder body and piston rod of the cylinder (12) are respectively mounted on the cylinder body mounting plate (13) and the piston rod mounting plate (14).

7. The motor processing finishing machine pressing device according to claim 1, characterized in that: The front end of the compression outer sleeve (4) is expanded outward to form a bearing mounting seat (15), and the compression inner sleeve (5) and the compression outer sleeve (4) have the same inner diameter size.

8. The motor processing skin finishing machine pressing device according to claim 7, characterized in that: A front bearing retaining ring (16) and a rear bearing retaining step (17) for limiting the front and rear ends of the outer ring of the bearing (6) are provided in the bearing mounting seat (15), and a front bearing retaining step (18) and a rear bearing retaining ring (19) for limiting the front and rear ends of the inner ring of the bearing (6) are provided on the pressing inner sleeve (5).

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