Internal expansion type clamp for polishing motor shell

Abstract

The utility model discloses an internal expanding type clamp for polishing a motor shell, and relates to the technical field of clamping devices. The internal expansion type clamp for polishing the motor shell comprises a base, the internal expansion type clamp is arranged on the base and comprises a first internal thread sleeve, a bolt, two first rotary knobs, two first threaded columns, a first connecting piece, two first semicircular truncated cone pieces, a plurality of grooves, two sleeves, two second semicircular truncated cone pieces, a second connecting piece, two second threaded columns, two second rotary knobs and two second internal thread sleeves. According to the internal expansion type clamp, two first semicircular truncated cone pieces and two second semicircular truncated cone pieces in the internal expansion type clamp are arranged, and the two first semicircular truncated cone pieces and the two second semicircular truncated cone pieces can drive corresponding sleeves to expand to support the upper face and the lower face of the square motor; and the two semicircular truncated cone pieces I and the two semicircular truncated cone pieces II can drive the corresponding sleeves to move to respectively support the left surface and the right surface of the inner wall of the square motor, so that the square motor is stably clamped by the internal expansion type clamp.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a motor housing polishing internal expansion type clamp. Background Art

[0002] When polishing a motor, in order to ensure its stability during polishing, it is often necessary to clamp the motor first and then polish the motor housing. However, the general clamping method clamps from the outside, which requires changing the position to ensure that the surface polishing of the motor housing is completed. However, a Chinese utility model patent, authorization announcement number "CN216731289U", discloses an internal expansion clamp for polishing a motor housing, including a screw rod, the right part of the screw rod is threadedly connected to a thread groove, and the thread groove is arranged on the middle side of the left end inside the second fastener, and the right end of the second fastener is fixedly connected to the middle part of the left side wall of the mounting plate.

[0003] The above technical solution is to set the first fastener to gradually squeeze the sleeve outward during the process of inserting the first fastener into the sleeve to the right, so that the left part of the sleeve expands through the expansion groove on the left side of the outer circumference of the sleeve, so that the left side of the sleeve is squeezed outward to squeeze the through hole, thereby fixing the left side of the motor housing body. During the rightward movement of the sleeve, the outer circumference of the second fastener is gradually squeezed outward to squeeze the inner side wall of the right end, so that the sleeve expands and squeezes the through hole through the expansion groove on the right, thereby fixing the motor housing body, so that the clamping position does not need to be changed during the polishing process of the motor housing body, which greatly improves the polishing efficiency of the motor housing body. However, when clamping the square motor housing, there is a problem that the upper and lower ends can be clamped but the left and right ends cannot be clamped. During the subsequent polishing of the motor housing, it is easy to have the problem of unstable polishing process due to the failure to clamp the left and right ends. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a motor housing polishing internal expansion clamp which can solve the problem that when clamping a square motor housing, the upper and lower ends can be clamped but the left and right ends cannot be clamped, and the problem of insufficient stability during subsequent motor housing polishing.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a motor housing polishing internal expansion clamp, comprising a base;

[0006] The internal expansion clamp is arranged on the base, and the internal expansion clamp includes an internal threaded sleeve, a bolt, two turning knobs, two threaded columns, a connecting piece, two semicircular table pieces, multiple grooves, two sleeves, two semicircular table pieces, a connecting piece, two threaded columns, two turning knobs and two internal threaded sleeves. The internal threaded sleeves are welded to the base, and the inner surface of the internal threaded sleeve is threadedly connected to the surface of the bolt, and the inner surface of the internal threaded sleeve is threadedly connected to the surface of the bolt.

[0007] Preferably, the connecting piece 1 is welded to the internal threaded sleeve 1, and the two semicircular table pieces 1 slide along the two ends of the connecting piece 1 respectively.

[0008] Preferably, the surfaces of the two threaded columns 1 are respectively threadedly connected to the inner surface of the corresponding semicircular table member 1, the surfaces of the two threaded columns 1 are in contact with the surface of the connecting member 1, and the two turning knobs 1 are respectively welded to the corresponding threaded columns 1.

[0009] Preferably, the plurality of grooves are respectively provided on corresponding sleeves, the inner surfaces of the two sleeves are respectively in contact with the surface of the corresponding semicircular table piece one, and the inner surfaces of the two sleeves are respectively in contact with the surface of the corresponding semicircular table piece two.

[0010] Preferably, the second connecting member is welded to the second internal threaded sleeve, and the two semicircular platform members slide along the two ends of the second connecting member respectively.

[0011] Preferably, the surfaces of the two threaded columns 2 are respectively threadedly connected to the inner surfaces of the corresponding semicircular table member 2, the surfaces of the two threaded columns 2 are in contact with the surface of the connecting member 2, and the two turning knobs 2 are respectively welded to the corresponding threaded columns 2.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The motor housing polishing internal expansion clamp is provided with two semicircular table pieces one and two semicircular table pieces two in the internal expansion clamp. The two semicircular table pieces one and two semicircular table pieces two can drive the corresponding sleeves to not only expand to support the upper and lower surfaces of the square motor, but also the two semicircular table pieces one and two semicircular table pieces two can drive the corresponding sleeves to move to respectively support the left and right surfaces of the inner wall of the square motor, so that the internal expansion clamp can stably clamp the square motor, thereby making the subsequent polishing work more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure numerals: 1. Internal threaded sleeve 1; 2. Bolt; 3. Turning knob 1; 4. Threaded column 1; 5. Connecting piece 1; 6. Semicircular table piece 1; 7. Groove; 8. Sleeve; 9. Semicircular table piece 2; 10. Connecting piece 2; 11. Threaded column 2; 12. Turning knob 2; 13. Base; 14. Internal threaded sleeve 2. DETAILED DESCRIPTION

[0017] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0018] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0020] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0021] See also Figure 1 , the utility model provides a technical solution: a motor housing polishing internal expansion fixture, including a base 13;

[0022] The internal expansion clamp is arranged on the base 13, and the internal expansion clamp includes an internal threaded sleeve 1, a bolt 2, two turning knobs 3, two threaded columns 4, a connecting piece 5, two semicircular table pieces 6, a plurality of grooves 7, two sleeves 8, two semicircular table pieces 9, a connecting piece 10, two threaded columns 11, two turning knobs 12 and two internal threaded sleeves 14. The internal threaded sleeves 14 are welded to the base 13, and the inner surface of the internal threaded sleeves 14 is threadedly connected to the surface of the bolt 2, and the inner surface of the internal threaded sleeve 1 is threadedly connected to the surface of the bolt 2.

[0023] The connecting piece 5 is welded to the internal thread sleeve 1, and the two semicircular table pieces 6 slide along the two ends of the connecting piece 5 respectively.

[0024] The surfaces of the two threaded columns 4 are respectively threadedly connected to the inner surfaces of the corresponding semicircular table member 6, the surfaces of the two threaded columns 4 are both in contact with the surface of the connecting member 5, and the two knobs 3 are respectively welded to the corresponding threaded columns 4.

[0025] A plurality of grooves 7 are respectively provided on the corresponding sleeves 8, and the inner surfaces of the two sleeves 8 are respectively in contact with the surface of the corresponding semicircular table piece 1 6, and the inner surfaces of the two sleeves 8 are respectively in contact with the surface of the corresponding semicircular table piece 2 9.

[0026] The second connecting piece 10 is welded with the second internal thread sleeve 14 , and the two semicircular platform pieces 9 slide along the two ends of the second connecting piece 10 .

[0027] The surfaces of the two threaded columns 11 are respectively threadedly connected to the inner surfaces of the corresponding semicircular table parts 9, the surfaces of the two threaded columns 11 are in contact with the surface of the connecting part 10, and the two knobs 12 are respectively welded to the corresponding threaded columns 11.

[0028] When it is necessary to clamp the square motor housing;

[0029] First, put the two sleeves 8 on the corresponding semicircular table parts 2 9 respectively, then, place the square motor on the two sleeves 8, then, clamp the two semicircular table parts 1 6 in the corresponding sleeves 8 respectively, and then, tighten the internal threaded sleeve 1 1 and the internal threaded sleeve 2 14 by bolt 2. The tightening of the internal threaded sleeve 1 1 and the internal threaded sleeve 2 14 drives the semicircular table parts 1 6 and the semicircular table parts 2 9 to move relative to each other, so that the sleeves 8 expand and fit to the upper and lower ends of the square motor.

[0030] Secondly, before the upper and lower surfaces are about to be tightly fitted by the sleeve 8, the positional relationship between the two semicircular platform members 1 6 and the two semicircular platform members 2 9 is adjusted, that is, the sleeve 8 is driven to move in opposite directions and contact the left and right sides of the inner wall of the square motor housing.

[0031] Finally, by tightening the bolt 2, the internal expansion clamp can simultaneously support the square motor outer shell from the four sides of the upper, lower, left and right of the square motor inner shell for polishing.

[0032] When the left and right distance between the two semicircular table pieces 6 needs to be adjusted;

[0033] First, turn the two knobs 3. The rotation of the two knobs 3 drives the corresponding threaded column 4 to move. The movement of the two threaded column 4 loosens the corresponding semicircular table part 6. Then, adjust the position of the two semicircular table parts 6 to contact the square motor housing. Finally, turn the two knobs 3 to tighten the corresponding semicircular table part 6.

[0034] When the left and right distance between the two semicircular table pieces 9 needs to be adjusted;

[0035] First, turn the two knobs 12. The rotation of the two knobs 12 drives the corresponding threaded column 11 to move. The movement of the two threaded column 11 loosens the corresponding semicircular table part 9. Then, adjust the position of the two semicircular table parts 9 to contact the direction motor housing. Finally, turn the two knobs 12 to tighten the corresponding semicircular table part 9.

[0036] When polishing a motor, in order to ensure its stability during polishing, it is often necessary to clamp the motor first and then polish the motor housing. However, the general clamping method clamps from the outside, which requires changing the position to ensure that the surface polishing of the motor housing is completed. However, a Chinese utility model patent, authorization announcement number "CN216731289U", discloses an internal expansion clamp for polishing a motor housing, including a screw rod, the right part of the screw rod is threadedly connected to a thread groove, and the thread groove is arranged on the middle side of the left end inside the second fastener, and the right end of the second fastener is fixedly connected to the middle part of the left side wall of the mounting plate.

[0037] The above technical solution is to set the first fastener to gradually squeeze the sleeve outward during the process of inserting the first fastener into the sleeve to the right, so that the left part of the sleeve expands through the expansion groove on the left side of the outer circumference of the sleeve, so that the left side of the sleeve is squeezed outward to squeeze the through hole, thereby fixing the left side of the motor housing body. During the rightward movement of the sleeve, the outer circumference of the second fastener is gradually squeezed outward to squeeze the inner side wall of the right end, so that the sleeve expands and squeezes the through hole through the expansion groove on the right, thereby fixing the motor housing body, so that the clamping position does not need to be changed during the polishing process of the motor housing body, which greatly improves the polishing efficiency of the motor housing body. However, when clamping the square motor housing, there is a problem that the upper and lower ends can be clamped but the left and right ends cannot be clamped. During the subsequent polishing of the motor housing, it is easy to have the problem of unstable polishing process due to the failure to clamp the left and right ends.

[0038] By setting two semicircular platforms 1 6 and two semicircular platforms 2 9 in the internal expansion clamp, the two semicircular platforms 1 6 and the two semicircular platforms 2 9 can drive the corresponding sleeve 8 not only to expand to support the upper and lower surfaces of the square motor, but also the two semicircular platforms 1 6 and the two semicircular platforms 2 9 can drive the corresponding sleeve 8 to move to respectively support the left and right surfaces of the inner wall of the square motor, so that the internal expansion clamp can stably clamp the square motor, thereby making the subsequent polishing work more stable.

[0039] Working principle:

[0040] When it is necessary to clamp the square motor housing;

[0041] First, put the two sleeves 8 on the corresponding semicircular table parts 2 9 respectively, then, place the square motor on the two sleeves 8, then, clamp the two semicircular table parts 1 6 in the corresponding sleeves 8 respectively, and then, tighten the internal threaded sleeve 1 1 and the internal threaded sleeve 2 14 by bolt 2. The tightening of the internal threaded sleeve 1 1 and the internal threaded sleeve 2 14 drives the semicircular table parts 1 6 and the semicircular table parts 2 9 to move relative to each other, so that the sleeves 8 expand and fit to the upper and lower ends of the square motor.

[0042] Secondly, before the upper and lower surfaces are about to be tightly fitted by the sleeve 8, the positional relationship between the two semicircular platform members 1 6 and the two semicircular platform members 2 9 is adjusted, that is, the sleeve 8 is driven to move in opposite directions and contact the left and right sides of the inner wall of the square motor housing.

[0043] When the left and right distance between the two semicircular table pieces 6 needs to be adjusted;

[0044] First, turn the two knobs 3. The rotation of the two knobs 3 drives the corresponding threaded column 4 to move. The movement of the two threaded column 4 loosens the corresponding semicircular table part 6. Then, adjust the position of the two semicircular table parts 6 to contact the square motor housing. Finally, turn the two knobs 3.

[0045] When the left and right distance between the two semicircular table pieces 9 needs to be adjusted;

[0046] First, turn the two knobs 12. The rotation of the two knobs 12 drives the corresponding threaded column 11 to move. The movement of the two threaded column 11 loosens the corresponding semicircular table part 9. Then, adjust the position of the two semicircular table parts 9 to contact the direction motor housing. Finally, turn the two knobs 12.

[0047] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A motor housing polishing internal expansion fixture, characterized in that: include: Base (13); The internal expansion clamp is arranged on a base (13), and comprises an internal thread sleeve (1), a bolt (2), two rotating knobs (3), two threaded columns (4), a connecting piece (5), two semicircular table pieces (6), a plurality of grooves (7), two sleeves (8), two semicircular table pieces (9), a connecting piece (10), two threaded columns (11), two rotating knobs (12) and two internal thread sleeves (14). The internal thread sleeves (14) are welded to the base (13), the inner surface of the internal thread sleeves (14) is threadedly connected to the surface of the bolt (2), and the inner surface of the internal thread sleeve (1) is threadedly connected to the surface of the bolt (2).

2. The motor housing polishing internal expansion fixture according to claim 1, characterized in that: The connecting piece 1 (5) is welded to the internal thread sleeve 1 (1), and the two semicircular table pieces 1 (6) slide along the two ends of the connecting piece 1 (5) respectively.

3. The motor housing polishing internal expansion fixture according to claim 1, characterized in that: The surfaces of the two threaded columns (4) are respectively threadedly connected to the inner surfaces of the corresponding semicircular table parts (6), the surfaces of the two threaded columns (4) are in contact with the surface of the connecting part (5), and the two knobs (3) are respectively welded to the corresponding threaded columns (4).

4. The motor housing polishing internal expansion fixture according to claim 1, characterized in that: The plurality of grooves (7) are respectively arranged on the corresponding sleeves (8), the inner surfaces of the two sleeves (8) are respectively in contact with the surface of the corresponding semicircular table piece 1 (6), and the inner surfaces of the two sleeves (8) are respectively in contact with the surface of the corresponding semicircular table piece 2 (9).

5. The motor housing polishing internal expansion fixture according to claim 1, characterized in that: The second connecting piece (10) is welded with the second internal thread sleeve (14), and the two second semicircular platform pieces (9) slide along the two ends of the second connecting piece (10) respectively.

6. The motor housing polishing internal expansion fixture according to claim 1, characterized in that: The surfaces of the two threaded columns (11) are respectively threadedly connected to the inner surface of the corresponding semicircular platform component (9), the surfaces of the two threaded columns (11) are in contact with the surface of the connecting component (10), and the two knobs (12) are respectively welded to the corresponding threaded columns (11).

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