Internal machining clamp for motor shell

Abstract

The utility model relates to the field of clamp tools, in particular to a motor casing interior machining clamp which comprises an L-shaped supporting seat, a supporting structure and an abutting structure, the supporting structure and the abutting structure are arranged on the L-shaped supporting seat, the L-shaped supporting seat comprises a base and a back seat, the back seat is perpendicular to the base and used for clamping a motor casing, a through hole is formed in the back seat, and a machining area is formed by the through hole; reinforcing rib plates are arranged on the two sides of the L-shaped supporting seat, and an anti-collision baffle is arranged on the inner side of the reinforcing rib plate on the left side; the supporting structure comprises a guide rod, the guide rod is arranged on the base and comprises a side guide rod and a bottom guide rod, and the side guide rod is higher than the bottom guide rod and used for guiding and supporting pushing-in of the motor shell; the abutting structure comprises an auxiliary supporting cylinder used for circumferentially supporting the side face of the motor shell. The abutting structure further comprises a pressing cylinder which is arranged on the back seat and used for pressing the end face of the motor shell. The problem of how to ensure the stability of the motor shell when the motor shell is horizontally placed and the interior of the motor shell is processed can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fixture tooling, in particular to motor shell inside processing fixture. BACKGROUND

[0002] The motor shell is the basic part of the motor product, and the motor shell includes two end faces, an outer side and an interior. After the motor shell is produced, the end face and the outer side of the motor shell need to be rough machined first, and then the interior of the motor shell is machined through a second process. Therefore, the motor shell needs to be fixed through a fixture for facilitating the machining of the inner hole by a tool. The motor shell is suitable for horizontal clamping according to the analysis of the inventor from the aspects of convenient installation and machining position.

[0003] The prior art discloses a motor shell machining fixture with the publication number CN112589704A. The motor shell machining fixture includes a base, a support assembly arranged on the base, a moving plate and a support plate, the moving plate is movably connected with the base, the support plate is arranged on the upper end face of the moving plate, the upper end of the support plate abuts against the side face of the motor shell, the support assembly carries and drives the motor shell to move horizontally, a positioning plate is arranged on the base vertically and located on one side of the support assembly, and when the support assembly moves towards the positioning plate, one side of the motor shell abuts against the positioning assembly. The machining fixture clamps the motor shell in a horizontal clamping mode, which facilitates the machining of the interior of the motor shell. However, the prior art still has the following disadvantages:

[0004] 1. After the motor shell is placed on the support assembly, the support assembly and the motor shell need to be pushed to move inward as a whole until the positioning plate, and then the motor shell is fixed. The prior art needs to push the support assembly and the motor shell to move as a whole, which is laborious and low in efficiency.

[0005] 2. The support assembly is movably arranged through the cooperation of the slide rail and the sliding block. However, the slide rail and the sliding block need to be regularly lubricated and cleaned for maintenance, which not only increases the cost and workload of daily maintenance, but more importantly, if foreign matters are stuck between the slide rail and the sliding block, the support assembly may be difficult to slide, stuck or even unable to slide, which greatly increases the risk of production line shutdown and affects the production continuity and product quality. UTILITY MODEL CONTENTS

[0006] The utility model intends to provide a motor shell inside processing fixture to solve the problem that the prior art needs to push the support assembly and the motor shell to move as a whole, which is laborious and low in efficiency.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] The motor shell inner processing clamp comprises an L-shaped support base, a support structure and a abutting structure arranged on the L-shaped support base, the L-shaped support base comprises a base and a back seat arranged perpendicularly to the base for clamping the motor shell, a through hole is arranged on the back seat, and the through hole forms a processing area; a reinforcing rib plate is arranged on both sides of the L-shaped support base, and an anti-collision baffle is arranged on the inner side of the reinforcing rib plate on the left side; the support structure comprises a guide rod arranged on the base, the guide rod is used for guiding and supporting the pushing of the motor shell, the guide rod comprises a side guide rod and a bottom guide rod, and the side guide rod is higher than the bottom guide rod; the abutting structure comprises a plurality of auxiliary support cylinders arranged on the base, the auxiliary support cylinder comprises a first driving member and a telescopic pin connected with the first driving member, and the auxiliary support cylinder is used for circumferentially supporting the side surface of the motor shell; the abutting structure further comprises a pressing cylinder arranged on the back seat and used for pressing the end surface of the motor shell.

[0009] Advantages:

[0010] 1. The guide rod can support the motor shell, assisting the processing worker to push the motor shell inward, which is more labor-saving and convenient to align than directly holding the motor shell for positioning. In specific operation, the processing worker only needs to place the bottom of the motor shell on the bottom guide rod, place the side surface of the motor shell on the side guide rod, and then push it inward along the guide rod until it abuts against the back seat, and then position and limit the motor shell. This scheme only needs to push the motor shell, which is more labor-saving and simpler to operate than the prior art which needs to move the support assembly and the motor shell as a whole. In addition, the bottom and side surface of the motor shell are guided and positioned by the bottom guide rod and the side guide rod respectively during the pushing process, which ensures the stability of the motor shell during the pushing process. In addition, the guide rod is fixedly arranged, and there is no problem of stopping due to the jamming of sundries in the sliding rail in the prior art.

[0011] 2. The L-shaped support base is used for installing the support structure and the abutting structure, and meanwhile, the back seat is arranged perpendicularly to the base, which is more convenient for the processing worker to align than being arranged at an angle: if the back seat is arranged at an acute angle, the corresponding guide rod also needs to be arranged downward in the forward direction, and the processing worker needs to apply more force when pushing inward; if the back seat is arranged at an obtuse angle, the motor shell is easy to slide downward when pushed inward and is easy to collide with the back seat, causing bumps to the motor shell. The processing area arranged on the back seat can facilitate the extension of the cutter into the inner hole of the motor shell for processing.

[0012] 3. Since the L-shaped support base is relatively thin, continuous application of a forward force to the back seat can easily cause the back seat to deform, so the reinforcing rib plate arranged between the base and the back seat can make the L-shaped support base more solid and improve the durability.

[0013] 4. The anti-collision baffle prevents the reinforcing ribs from scraping the sides of the motor housing when it is pushed in. The anti-collision baffle also restricts the lateral movement of the motor housing, preventing it from swaying during insertion and hindering the worker's ability to quickly align it with the backrest.

[0014] 5. The combination of auxiliary support cylinder and clamping cylinder can provide circumferential support for the end face and side of the motor housing, making the motor housing more stable and reducing the vibration and deformation generated when the cutting tool processes the internal holes of the motor housing.

[0015] Preferably, as an improvement, there are three auxiliary support cylinders, which respectively support the bottom of the side of the motor housing, the upper left edge of the side of the motor housing, and the lower right edge of the side of the motor housing.

[0016] Beneficial effects: The three auxiliary support cylinders are arranged in a ring-shaped triangle relative to the side of the motor housing, which supports the weak parts of the motor housing, making the motor housing more stable on the fixture and further reducing the vibration and deformation generated by the tool when machining the inner hole of the motor housing.

[0017] Preferably, as an improvement, a fixing seat is provided under the guide rod, and the fixing seat is fixedly mounted on the base.

[0018] Beneficial effects:

[0019] 1. Since the guide rod is cylindrical, it is not convenient to fix it directly to the base. The fixing seat under the guide rod can make the fixing effect better.

[0020] 2. Furthermore, it has the effect of raising the guide rod. Compared to directly setting the guide rod on the base, it can prevent the base from scraping against the motor housing during the process of pushing the motor housing inward.

[0021] Preferably, as an improvement, it also includes a positioning and limiting structure provided on the back seat, the positioning and limiting structure including multiple positioning pins, the positioning pins being movably inserted into the circumferential holes of the motor housing.

[0022] Beneficial effects: The positioning pin can perform coarse positioning of the motor housing. It has a simple structure and is easy to operate. Simply align the circumferential hole of the motor housing with the positioning pin and push it inward.

[0023] Preferably, as an improvement, the positioning and limiting structure further includes a limiting rod, which includes an anti-drop seat fixedly mounted on the back seat and an anti-drop pressure plate rotatably mounted on the anti-drop seat. The anti-drop pressure plate can be rotated to the end face of the motor housing and clamp it.

[0024] Beneficial effects: After the positioning pin is inserted into the motor housing, the processing worker can rotate the anti-drop pressure plate clockwise to rotate it to the edge of the motor housing end face and prevent it from tilting outward. It is easy to operate and has a simple structure.

[0025] Preferably, as an improvement, the back seat is further provided with a stop lever, which is arranged below the anti-falling seat and is used to support the anti-falling plate.

[0026] Beneficial effects: Compared with setting a relatively large rotating resistance between the anti-falling plate and the anti-falling seat to prevent the anti-falling plate from falling, the stop lever arranged below the anti-falling seat can make the processing worker only need to rotate the anti-falling plate slightly, which is more labor-saving.

[0027] Preferably, as an improvement, the pressing cylinder is multiple, and the pressing cylinder comprises a second driving member and a rotating member rotatably connected to the driving end of the second driving member, and the rotating member can rotate to the end face of the motor shell.

[0028] Beneficial effects: By driving the second driving member, the rotating member can abut against the end face of the motor shell, can fix the end face of the motor shell, and enhances the stability during the processing of the motor shell.

[0029] Preferably, as an improvement, the air-tight detection structure further comprises a plurality of air-tight supporting structures arranged on the inner side of the pressing cylinder.

[0030] Beneficial effects: The air-tight detection structure can assist the processing worker to judge whether the end face of the motor shell is completely pressed by the pressing cylinder.

[0031] Preferably, as an improvement, the air-tight supporting structure comprises an abutting column arranged on the back seat, and the abutting column is provided with an airflow through hole.

[0032] 1. The abutting column can assist the positioning pin to position the end face of the motor shell, so that the positioning of the end face of the motor shell is more accurate.

[0033] 2. The airflow through hole can assist the processing worker to judge whether the end face of the motor shell is completely abutted against the abutting column, and if the airflow through hole can still emit air, an alarm will be sent to remind the processing worker to immediately adjust the motor shell until the end face of the motor shell is completely abutted against the abutting column.

[0034] Preferably, as an improvement, the back seat is further provided with a tool setting reference hole, and the tool setting reference hole is a through hole.

[0035] Beneficial effects: The arrangement of the tool setting reference hole can make the processing tool accurately position the coordinates of the clamp, so that the processing is more precise. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a whole structure schematic view of not placing the motor shell on the clamp according to the embodiment one of the utility model.

[0037] Figure 2 It is a whole structure schematic view of placing the motor shell on the clamp according to the embodiment one of the utility model.

[0038] Figure 3 It is the overall structure schematic view of the embodiment two of the utility model not to put motor shell on the fixture.

[0039] Figure 4 It is the enlarged view of A in Figure 3

[0040] Figure 5 It is the overall structure schematic view of the embodiment two of the utility model to put motor shell on the fixture. DETAILED DESCRIPTION

[0041] The following is further described in detail through specific embodiments:

[0042] The reference signs in the drawings of the specification include: L-shaped support seat 1, base 11, back seat 12, processing area 121, reinforcing rib plate 13, anti-collision baffle 14, tool setting reference hole 15, side guide rod 2, bottom guide rod 3, auxiliary support cylinder 4, pressing cylinder 5, positioning pin 6, limiting rod 7, anti-falling seat 71, anti-falling pressing plate 72, stop lever 8, air-tight support structure 9, clamping column 91, air flow through hole 92.

[0043] Embodiment one

[0044] As shown in Figure 1 and Figure 2 , the motor shell internal processing fixture, including L-shaped support seat 1, L-shaped support seat 1 includes base 11 and the back seat 12 for clamping motor shell which is arranged perpendicularly to base 11, back seat 12 is provided with through hole, and the through hole forms processing area 121, which is convenient for the tool to extend into and process the motor shell hole. The upper left corner of back seat 12 is also provided with tool setting reference hole 15, and tool setting reference hole 15 is a through hole. Before the tool processes the motor shell, the tool is first moved to tool setting reference hole 15 on back seat 12 to accurately position the coordinates of the fixture, so that the processing is more precise. Both sides of L-shaped support seat 1 are provided with reinforcing rib plate 13, and reinforcing rib plate 13 connects back seat 12 and base 11 with each other. The inner side of left reinforcing rib plate 13 is welded with anti-collision baffle 14, and anti-collision baffle 14 extends from the front side of reinforcing rib plate 13 to the rear side until back seat 12. Anti-collision baffle 14 is made of non-rigid material, such as ABS material, which can avoid scratching the motor shell caused by reinforcing rib plate 13 as much as possible.

[0045] ​The L-shaped support base 1 is provided with a support structure and a pressing structure. The support structure comprises a guide rod arranged on the base 11 and used for guiding and supporting the pushing of the motor shell. The guide rod is provided with a fixing seat below, the fixing seat is screwed on the base 11, and the guide rod is welded on the fixing seat. The guide rod comprises a bottom guide rod 3 and a side guide rod 2. The side guide rod 2 is higher than the bottom guide rod 3. The bottom guide rod 3 is arranged at the middle of the base 11. The side guide rod 2 is arranged at the left side of the bottom guide rod 3 and the right side of the anti-collision baffle 14, and is used for supporting and guiding the left side of the side surface of the motor shell. The pressing structure comprises an auxiliary support cylinder 4 arranged on the base 11 and used for supporting the side surface of the motor shell in the circumferential direction, and a pressing cylinder 5 arranged on the back seat 12 and used for pressing the end surface of the motor shell. The auxiliary support cylinder 4 comprises a first driving member (which can be driven by an oil cylinder or a gas cylinder) and a telescopic pin connected with the first driving member. In this embodiment, the auxiliary support cylinder 4 is provided in three. The first auxiliary support cylinder 4 is arranged at the left side of the base 11, located at the front side of the reinforcing rib plate 13 and at the left side of the side guide rod 2. The second auxiliary support cylinder 4 is arranged at the left front side of the bottom guide rod 3. The third auxiliary support cylinder 4 is arranged at the right side of the bottom guide rod 3. The first auxiliary support cylinder 4 supports the bottom of the side edge of the motor shell. The second auxiliary support cylinder 4 supports the left upper edge of the side edge of the motor shell. The third auxiliary support cylinder 4 supports the right lower edge of the side edge of the motor shell. That is, the three auxiliary support cylinders 4 are distributed in a circumferential triangle with respect to the side surface of the motor shell, so that the support is more stable, and the vibration and deformation of the tool when machining the inner hole of the motor shell are further reduced. The pressing cylinder 5 is provided in three and is arranged at the edge of the machining area 121. The pressing cylinder 5 comprises a second driving member (which can be driven by an oil cylinder or a gas cylinder) and a rotating member rotatably connected to the driving end of the second driving member. The rotating member can rotate to the end surface of the motor shell and press it.

[0046] The specific operation process is as follows:

[0047] The machining worker places the bottom of the motor shell on the bottom guide rod 3, places the left side surface of the motor shell on the side guide rod 2, holds the motor shell by hand, and pushes the motor shell along the bottom guide rod 3 and the side guide rod 2 inward until the motor shell touches the back seat 12, and then stops pushing. The whole operation process of pushing the motor shell to the back seat 12 is labor-saving, which can greatly reduce the burden of the machining worker. First, the rotating members of the three pressing cylinders 5 are driven to rotate and press downward to press the end surface of the motor shell. Then, the telescopic pins of the three auxiliary support cylinders 4 are driven to extend toward the motor shell until they press against the side surface of the motor shell, so that the end surface and the side surface of the motor shell are supported and pressed in the circumferential direction.

[0048] Example two

[0049] In combination with Figure 3 , Figure 4 and Figure 5The difference between the embodiment and the embodiment one is that the embodiment adds a positioning and limiting structure and a gas tightness detection structure on the basis of the embodiment one. The positioning and limiting structure includes two positioning pins 6 arranged on the back seat 12 and movably inserted into the self-circumferential holes of the motor shell, and a limiting rod 7 for clamping and pressing the end face of the motor shell to prevent the motor shell from tilting outward. The two positioning pins 6 are screw-fixed on the back seat 12 and respectively located at the upper edge and the lower left edge of the through hole. The positioning pin 6 located at the upper edge is cylindrical, and the positioning pin 6 located at the lower left edge is rhombic. The two positioning pins 6 can preliminarily position the motor shell. The limiting rod 7 is arranged at the upper left edge of the through hole and includes a falling-prevention seat 71 screw-fixed on the back seat 12, a rotating shaft arranged on the falling-prevention seat 71, and a falling-prevention pressing plate 72 rotatably arranged on the rotating shaft. The falling-prevention pressing plate 72 is L-shaped, has a holding handle at one end and a limiting plate at the other end. The limiting plate can be rotated to the end face of the motor shell and clamped and pressed thereon. In addition, an abutment rod 8 is fixedly arranged below the falling-prevention seat 71. The abutment rod 8 is cylindrical and used for supporting the limiting plate.

[0050] The gas tightness detection structure includes three gas tightness supporting structures 9 abutting against the end face of the motor shell. The gas tightness supporting structures 9 are arranged on the inner side of the pressing cylinder 5. The gas tightness supporting structures 9 include a mounting seat screw-fixed on the back seat 12, and an abutting column 91 arranged on the mounting seat. The abutting column 91 is a cylinder, and a gas flow through hole 92 is arranged in the middle of the abutting column 91. The three gas tightness supporting structures 9 are respectively located at the upper right edge, the left edge and the lower right edge of the through hole and are distributed in a triangular shape.

[0051] The specific operation process is as follows:

[0052] During the process that the processing worker pushes the motor shell to the back seat 12, the self-circumferential holes of the motor shell are inserted into the two positioning pins 6. At this time, the abutting columns 91 of the three gas tightness supporting structures 9 are in contact with the end face of the motor shell, and the motor shell is preliminarily positioned. Then, the processing worker rotates the holding handle clockwise to rotate the limiting plate to the edge of the end face of the motor shell, and the limiting plate is clamped on the abutment rod 8 to prevent the motor shell from tilting outward, so that the positioning and limiting of the end face of the motor shell are completed. Then, the gas flow through hole 92 on the abutting column 91 of the gas tightness supporting structure 9 starts to blow gas. If the gas flow can still be continuously blown out, the end face of the motor shell is not completely abutted against the abutting column 91, and the gas tightness detection structure issues an alarm to remind the processing worker to adjust the motor shell to be completely abutted against the abutting column 91. If the gas flow cannot be blown out, the alarm is released.

[0053] The above only is the embodiment of the present application, and the well-known specific technical solutions and / or common knowledge in the scheme are not described in detail. It should be pointed out that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. An electrical machine housing inner processing fixture, characterized in that: The utility model provides a motor shell processing device, including L-shaped support seat, support structure and abutting structure set up on L-shaped support seat, L-shaped support seat includes base and the back seat for clamping motor shell set up perpendicularly to base, is provided with through -hole on back seat, and through -hole forms processing area, both sides of L-shaped support seat are provided with reinforcing rib plate, and the inboard of reinforcing rib plate of left side is provided with anti -collision baffle, support structure includes guide rod, and guide rod sets up on base, and guide rod is used for the direction of the push of motor shell and supports, and guide rod includes side guide rod and bottom guide rod, and side guide rod is higher than bottom guide rod, and abutting structure includes a plurality of auxiliary support cylinder, and auxiliary support cylinder sets up on base, and auxiliary support cylinder includes first driving part and the telescopic pin connected with first driving part, and auxiliary support cylinder is used for the circumferential support of the side of motor shell, and abutting structure still includes the pressure cylinder for the end face of motor shell and is set up on back seat and is pressed tightly.

2. The motor housing interior machining fixture according to claim 1, characterized in that: The auxiliary support cylinder is three, and the three auxiliary support cylinders support the bottom of the side of the motor shell, the upper left edge of the side of the motor shell and the lower right edge of the side of the motor shell respectively.

3. The motor housing interior machining fixture of claim 1, wherein: The guide rod is provided with a fixing seat below, and the fixing seat is fixedly arranged on the base.

4. The motor housing interior machining fixture of claim 1, wherein: The positioning limiting structure further includes a limiting rod, the limiting rod includes an anti-falling seat fixedly arranged on the back seat and an anti-falling pressing plate rotatably arranged on the anti-falling seat, and the anti-falling pressing plate can be rotated to the end face of the motor shell and clamped and pressed thereon.

5. The motor housing interior machining fixture of claim 4, wherein: The back seat is further provided with a stop lever, and the stop lever is arranged below the anti-falling seat and is used for supporting the anti-falling pressing plate.

6. The motor housing interior machining fixture of claim 5, wherein: The pressure cylinder is a plurality of, and the pressure cylinder includes a second driving part and a rotating part rotatably connected to a driving end of the second driving part, and the rotating part can be rotated to the end face of the motor shell.

7. The motor housing interior machining fixture of claim 1, wherein: The utility model further includes airtight detection structure, and the airtight detection structure includes a plurality of airtight support structures arranged on the inner side of the pressure cylinder.

8. The motor housing interior machining fixture of claim 7, wherein: The airtight support structure includes an abutting column arranged on the back seat, and the abutting column is provided with an airflow through hole.

9. The motor housing interior machining fixture of claim 8, wherein: The back seat is further provided with a tool setting reference hole, and the tool setting reference hole is a through hole.

10. The motor housing interior machining fixture of claim 1, wherein: ​

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