Machining clamp capable of clamping two end faces of motor shell

Abstract

A first clamping mechanism and a second clamping mechanism are arranged on a working table, when the motor shell is clamped by the first clamping mechanism, a machine tool can machine one end face of the motor shell, and when the motor shell is clamped by the second clamping mechanism, the machine tool can machine the other end face of the motor shell. The machine tool can machine the other end face of the motor shell, machining of the two end faces of the motor shell is achieved, a hydraulic connector does not need to be disassembled and assembled frequently, a clamp in the machine tool does not need to be replaced frequently, and machining efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to motor housing processing, in particular to a processing fixture capable of clamping both end surfaces of the motor housing. Background Art

[0002] The motor housing usually refers to the part of the motor that is mounted outside the rotor, and the parts at both ends of the motor housing are usually called end covers. When processing the motor housing, it is necessary to fix the motor housing with a fixture, and then use a processing machine to perform turning or drilling operations so that the processed motor housing can be connected to the stator and end covers. Common motor housing types include Figure 4 As shown, it has a main body portion that is approximately cylindrical, and an edge portion arranged at one end of the main body portion.

[0003] Since only one end of the motor housing has an edge, two sets of fixtures are required to be used when processing both ends of the motor housing. Each set of fixtures has an independent hydraulic system, which requires frequent disassembly and assembly of the hydraulic interface. The only way is to replace the fixture in the machine tool and then process the other end of the motor housing, which reduces the processing efficiency. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a processing fixture that can clamp both end surfaces of a motor housing.

[0005] The utility model provides a processing fixture capable of clamping both end surfaces of a motor housing, comprising:

[0006] Workbench;

[0007] A first clamping mechanism is disposed on the workbench, comprising a first support column, and a plurality of first clamps disposed at the top of the first support column, wherein the first support column has a first axis, the extension direction of the first axis is the first direction, and a plurality of second clamps are disposed on one side of the first support column along the second direction;

[0008] The second clamping mechanism is arranged on the workbench and is located on one side of the first support column along the third direction. The third direction, the second direction and the first direction are perpendicular to each other. The second clamping mechanism includes a plurality of third clamps distributed in an array circumferentially with the second axis as the center, and the extension line direction of the second axis is the first direction.

[0009] According to the technical solution provided in the embodiment of the present application, the first clamp, the second clamp and the third clamp all adopt a lever-type hydraulic cylinder, each of the lever-type hydraulic cylinders includes a cylinder body, a hydraulic rod that can be extended and retracted along the first direction is provided in the middle of the top end of the cylinder body, a clamping plate is hinged to the top of the hydraulic rod, a lever support is hinged to the middle of the clamping plate, and the bottom end of the lever support is hinged to the top end of the cylinder body.

[0010] According to the technical solution provided in the embodiment of the present application, a plurality of fluid supply channels are provided in the workbench, and the fluid supply port of each lever-type hydraulic cylinder is connected to the corresponding fluid supply channel through the corresponding fluid supply branch, and the external interface of each fluid supply channel is connected to the oil outlet of the fluid supply device. A relaxation channel is also provided in the workbench, and the fluid outlet of each lever-type hydraulic cylinder is connected to the relaxation channel, and the external interface of the relaxation channel is connected to the oil return port of the fluid supply device.

[0011] According to the technical solution provided in the embodiment of the present application, the first clamping mechanism includes two first support seats arranged on the top surface of the workbench, and a second support seat arranged on the first support column along the second direction close to the second clamp side.

[0012] According to the technical solution provided in the embodiment of the present application, the second clamping mechanism also includes a plurality of third support seats arranged on the workbench, and a plurality of first auxiliary support components arranged on one side of each of the third support seats along the second direction.

[0013] According to the technical solution provided in the embodiment of the present application, the first auxiliary support assembly includes a compensation rod and an auxiliary hydraulic cylinder arranged at the top of the compensation rod, the compensation rod has a fluid supply branch inside, and the auxiliary hydraulic cylinder is connected to the corresponding fluid supply channel through the fluid supply branch inside the compensation rod.

[0014] According to the technical solution provided in the embodiment of the present application, the top surfaces of the first support seat, the second support seat and the third support seat are all provided with seating holes, and the workbench is also provided with an air supply channel. Each of the seating holes is connected to the air supply channel through a corresponding air supply branch, and the external interface of the air supply channel is connected to the air outlet of the air supply equipment.

[0015] According to the technical solution provided in the embodiment of the present application, a plurality of anti-error rods are provided on the workbench along the second direction away from each of the second clamps.

[0016] According to the technical solution provided in the embodiment of the present application, the first clamping mechanism also includes a precision positioning component, and the precision positioning component is used for precise positioning of the first clamp and the second clamp before clamping.

[0017] According to the technical solution provided in the embodiment of the present application, the second clamping mechanism includes a plurality of second positioning columns arranged on the workbench, which are used for precise positioning before clamping by the third clamp.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The workbench is provided with a first clamping mechanism and a second clamping mechanism. When the motor housing is clamped by the first clamping mechanism, the machine tool can process one end face of the motor housing, and when the motor housing is clamped by the second clamping mechanism, the machine tool can process the other end face of the motor housing, thereby realizing the processing of both end faces of the motor housing, without the need for ordinary disassembly and assembly of hydraulic interfaces and replacement of fixtures in the machine tool, and effectively improving the processing efficiency;

[0020] The tops of the first support seat, the second support seat and the third support seat are all provided with seating holes and an air supply channel connected to the air supply device. During the clamping process, if the air supply device feedbacks that the air pressure in the air supply channel reaches the required pressure, it means that the end face of the motor housing closes the seating hole and the clamping is stable. Otherwise, it means that the clamping is unstable or the motor housing does not cover the seating hole, which is convenient for users to understand the clamping state more accurately and make adjustments in time, thereby reducing processing accidents caused by unstable clamping or deviation of the motor housing position.

[0021] An anti-error rod is also provided to perform preliminary positioning, and a precise positioning assembly, a first positioning hole, a side wall, a second positioning hole, and a second positioning column are provided to achieve accurate positioning. The preparation work before clamping is reduced by performing preliminary positioning first and then accurate positioning, thereby improving the efficiency of installing the motor housing on the first clamping mechanism and the second clamping mechanism, and avoiding the occurrence of errors in the processing position due to inaccurate positioning;

[0022] The first clamp, the second clamp and the third clamp all use lever-type hydraulic cylinders. The hydraulic rod moves upward, pushing the clamping plate against the motor housing and exerting downward pressure. Then the hydraulic rod contracts downward, driving the other end of the clamping plate to tilt up, thereby ensuring stable clamping and not interfering with the normal installation of the motor housing.

[0023] The liquid supply channel and the air supply channel are both arranged on the workbench, and there is no need to use pipelines to connect the lever-type hydraulic cylinder or the seat hole, thus avoiding the inconvenience of later maintenance caused by the confusion of pipelines.

[0024] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 A schematic diagram of the structure of a processing fixture capable of clamping both end surfaces of a motor housing provided in an embodiment of the present application;

[0027] Figure 2A schematic structural diagram of a processing fixture capable of clamping both end surfaces of a motor housing provided in an embodiment of the present application in a normal state;

[0028] Figure 3 A schematic structural diagram of an inverted state of a processing fixture capable of clamping two end surfaces of a motor housing provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of the structure of a motor housing in a processing fixture capable of clamping both end surfaces of a motor housing provided in an embodiment of the present application;

[0030] Figure 5 A top view of a processing fixture capable of clamping both end surfaces of a motor housing provided in an embodiment of the present application;

[0031] Figure 6 A schematic diagram of the structure of a lever-type hydraulic cylinder in a processing fixture capable of clamping both end surfaces of a motor housing provided in an embodiment of the present application;

[0032] Figure 7 A schematic diagram of the structure of a seat hole and a third support seat in a processing fixture capable of clamping both end surfaces of a motor housing provided in an embodiment of the present application;

[0033] Figure 8 A schematic diagram of the structure of a pad and a workbench in a processing fixture capable of clamping both end surfaces of a motor housing provided in an embodiment of the present application;

[0034] Fig. 9 yes Figure 2 Partial cross-sectional view of area A in the middle;

[0035] Fig.10 A schematic structural diagram of a second support seat and a positioning hydraulic cylinder in a processing fixture capable of clamping both end surfaces of a motor housing provided in an embodiment of the present application.

[0036] Numbers in the figure:

[0037] 1. Base; 11. Workbench; 12. Legs;

[0038] 2. First clamping mechanism; 21. First support column; 22. First clamp; 23. Second clamp; 24. First support seat; 25. Elastic positioning pin; 26. Anti-error rod; 27. Second support seat; 28. Positioning hydraulic cylinder; 29. ​​Second auxiliary support assembly;

[0039] 3. Second clamping mechanism; 31. Third clamp; 32. Third support seat; 33. First auxiliary support assembly; 34. Second positioning column; 35. Compensation rod; 36. Auxiliary hydraulic cylinder;

[0040] 4. Lever type hydraulic cylinder; 41. Cylinder body; 42. Hydraulic rod; 43. Clamping plate; 44. Lever support;

[0041] 5. Motor housing; 51. Main body; 52. Edge; 53. First positioning hole; 54. Second positioning hole; 55. Side wall;

[0042] 61. air supply channel; 62. air supply branch; 63. seat hole; 64. air nozzle;

[0043] 71. Liquid supply channel; 72. Liquid supply branch; 73. Oil nozzle;

[0044] 8. Pad. DETAILED DESCRIPTION

[0045] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0046] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0047] Please refer to Figures 1 to 9 The embodiment of the utility model provides a processing fixture capable of clamping both end surfaces of a motor housing, comprising:

[0048] The workbench 11 has legs 12 at the bottom of the left and right ends of the workbench 11. The workbench 11 and the legs 12 form a base 1. The base 1 is installed in the machine tool through the legs 12. This installation method is a prior art and will not be described in detail here.

[0049] The utility model is used to clamp the motor housing 5, the motor housing 5 includes a main body 51, the main body 51 has a third axis, the direction of the third axis is the first direction, the main body 51 has a first end and a second end along the first direction, and the outer edge of the first end is provided with an edge portion 52, wherein the motor housing 5 is as shown in FIG. Figure 4 As shown, the first direction refers to Figure 1 and Figure 4 In the vertical direction, the main body 51 is approximately a hollow cylinder, and the axis of the hollow cylinder is the third axis;

[0050] The motor housing 5 has a normal state and an inverted state. When in the normal state, the first end is located close to the workbench 11, and when in the inverted state, the first end is located away from the workbench 11. Figure 2 As shown, when in the inverted state Figure 3As shown, the motor housing 5 is manually moved to switch between the upright state and the inverted state.

[0051] The first clamping mechanism 2 is arranged on the workbench 11, and includes a first support column 21, and a plurality of first clamps 22 arranged at the top of the first support column 21. The first support column 21 has a first axis, and the extension direction of the first axis is the first direction. The first support column 21 is provided with a plurality of second clamps 23 on one side along the second direction.

[0052] like Figure 2 As shown, the second direction refers to Figure 1 In the front-to-back direction, when the motor housing 5 is in the upright state, the main body 51 is sleeved outside the first support column 21, the first clamp 22 applies a first downward pressure to the second end, and the second clamp 23 applies a second downward pressure to the edge 52; when the first clamp 22 applies the first pressure downward, the stability of the main body 51 is maintained by the support of the workbench 11, and when the second clamp 23 applies the second pressure downward, the stability of the edge 52 is maintained by the support of the workbench 11, thereby achieving the clamping and fixing of the motor housing 5 in the upright state.

[0053] In a preferred embodiment, the first clamping mechanism 2 includes two first support seats 24 disposed on the top surface of the workbench 11, and a second support seat 27 disposed on the first support column 21 near the second clamp 23 side along the second direction;

[0054] like Figure 1 and Figure 2 As shown, when the motor housing 5 is in the upright state, the top ends of the two first support seats 24 abut against the first end, and the top ends of the second support seats 27 abut against the edge portion 52. The two first support seats 24 support the main body 51, and one second support seat 27 supports the edge portion 52, so as to raise the motor housing 5 to avoid the situation where the motor housing 5 directly contacts the workbench 11 and is inconvenient for processing. Moreover, the principle of determining a plane by three points is used to ensure the stability of the motor housing 5 after being raised. Furthermore, in order to improve the stability of the support, the number of the first support seats 24 supporting the main body 51 is consistent with the number of the first clamps 22, and the positions correspond one to one. Similarly, the number of the first support seats 24 supporting the edge portion 52 is consistent with the second clamps 23, and the positions correspond one to one. Preferably, as Figure 3 As shown, the first end of the motor housing 5 is not a complete plane. Therefore, according to the different positions of the first support seat 24 and the second support seat 27, the top surface area needs to be smaller than the area in contact with the motor housing 5 to avoid interference problems caused by the top of the first support seat 24 or the second support seat 27 being too large.

[0055] The second clamping mechanism 3 is provided on the workbench 11 and is located on one side of the first support column 21 along the third direction. The third direction, the second direction and the first direction are perpendicular to each other. The second clamping mechanism 3 includes a plurality of third clamps 31 distributed in an array in a circumferential direction with the second axis as the center. The extension line direction of the second axis is the first direction.

[0056] like Figure 1 and Figure 3 As shown, wherein the third direction refers to Figure 1 In the left and right directions, when the motor housing 5 is in an inverted state, the second axis coincides with the third axis, and the third clamp 31 applies a third downward pressure to the main body 51; when the main body 51 is subjected to the third downward pressure, the motor housing 5 is clamped and fixed in the inverted state with the support of the workbench 11; the outer edge of the second end of the motor housing 5 has a plurality of first protrusions protruding outward, and each third clamp 31 corresponds to each first protrusion, and presses down the first protrusion from the side close to the first end of each first protrusion to form a third pressure.

[0057] In a preferred embodiment, the second clamping mechanism 3 further includes a plurality of third support seats 32 disposed on the workbench 11, and a plurality of first auxiliary support components 33 disposed on one side of each third support seat 32 along the second direction;

[0058] like Figure 1 and Figure 3 As shown, when the motor housing 5 is in an inverted state, the top of the third support seat 32 abuts against the second end, and the top of each first auxiliary support component 33 abuts against the edge portion 52. The second end of the motor housing 5 is supported by the third support seat 32 to avoid direct contact between the motor housing 5 and the workbench 11 in the inverted state, thereby reducing the processing interference caused thereby. The first auxiliary support component 33 serves as an auxiliary support to avoid shaking of the edge portion 52 during processing.

[0059] In a preferred embodiment, the first clamp 22, the second clamp 23 and the third clamp 31 are all lever-type hydraulic cylinders 4, each lever-type hydraulic cylinder 4 includes a cylinder body 41, a hydraulic rod 42 which can be extended and retracted along a first direction is provided at the middle of the top of the cylinder body 41, a clamping plate 43 is hinged at the top of the hydraulic rod 42, a lever support 44 is hinged at the middle of the clamping plate 43, and the bottom end of the lever support 44 is hinged to the top of the cylinder body 41;

[0060] like Figure 1 and Figure 6When the motor housing 5 is installed in the first clamping mechanism 2 or the second clamping mechanism 3, the hydraulic rod 42 needs to be retracted into the cylinder body 41, and then under the action of the lever support 44, the clamping plate 43 is tilted away from the end of the hydraulic rod 42, and the projection of the clamping plate 43 along the first direction after swinging does not fall into the projection of the motor housing 5 along the first direction, and will not interfere with the installation of the motor housing 5, so as to achieve the purpose of avoiding the motor housing 5, and after the installation is completed, the hydraulic rod 42 is extended from the cylinder body 41, and the clamping plate 43 moves downward away from the end of the hydraulic rod 42, so as to achieve the purpose of pressing the motor housing 5. Optionally, as Figure 2 and Figure 4 As shown, the surface of the edge portion 52 away from the first end is not a flat surface, so the length of the clamping plate 43, the position away from the end of the hydraulic rod 42, and the size of the pressing point can be adjusted according to actual needs.

[0061] In a preferred embodiment, a plurality of liquid supply channels 71 are provided in the workbench 11, and the liquid supply port of each lever-type hydraulic cylinder 4 is connected to the corresponding liquid supply channel 71 through the corresponding liquid supply branch 72, and the external interface of each liquid supply channel 71 is connected to the oil outlet of the liquid supply device. A relaxation channel is also provided in the workbench 11, and the liquid outlet of each lever-type hydraulic cylinder 4 is connected to the relaxation channel, and the external interface of the relaxation channel is connected to the oil return port of the liquid supply device;

[0062] like Figure 5 and Figure 8 As shown, by supplying oil to the lever-type hydraulic cylinder 4, the hydraulic rod 42 is driven to rise, and the hydraulic oil flows back from the relaxation channel to the liquid supply device to drive the hydraulic rod 42 to contract, thereby achieving the purpose of clamping the motor housing 5 and avoiding the motor housing 5; in addition, in order to ensure that the clamping plate 43 of the second clamp 23 can be located above the edge portion 52, and to ensure that the clamping plate 43 of the third clamp 31 is located above the first protrusion, a cushion block 8 is provided at the bottom end of the second clamp 23 and the third clamp 31, and a liquid supply branch 72 is provided in the cushion block 8 and the first support column 21. Each first clamp 22 is connected to the first liquid supply channel 71 through the liquid supply branch 72 in the first support column 21, and each second clamp 23 is connected to the second liquid supply channel 71 through the liquid supply branch 72 in the cushion block 8. Each third clamp 31 is connected to the third liquid supply channel 71 through the liquid supply branch 72 in the corresponding cushion block 8. The three liquid supply channels 71 are not connected to each other. Figure 5 As shown, an oil nozzle 73 is embedded at the external interface of each liquid supply channel 71, and different oil outlets of the liquid supply device are connected through the oil nozzle 73 to achieve independent control, which is convenient for using the first clamping mechanism 2 and the second clamping mechanism 3 respectively; in addition, the way in which the liquid outlet of each lever-type hydraulic cylinder 4 is connected to the release channel is the same as the liquid inlet method, and the design of multiple liquid supply channels 71 and release channels being non-connected to each other belongs to the prior art, and the relevant description of the two will not be repeated.

[0063] In a preferred embodiment, the first auxiliary support assembly 33 includes a compensation rod 35 disposed on the workbench 11, and an auxiliary hydraulic cylinder 36 disposed at the top of the compensation rod 35, the top of the telescopic rod of the auxiliary hydraulic cylinder 36 abuts against the edge portion 52, and the compensation rod 35 has a liquid supply branch 72 inside, and the auxiliary hydraulic cylinder 36 is connected to the corresponding liquid supply channel 71 through the liquid supply branch 72 inside the compensation rod 35;

[0064] like Figure 3 and Figure 7 As shown, after the third clamp 31 clamps the motor housing 5 stably, the telescopic rod of the auxiliary hydraulic cylinder 36 is extended upward to support the edge portion 52. Compared with using a support member with a fixed height, this method can alleviate the vibration during processing in the inverted state, prevent knife marks on the processing surface, and will not interfere with the motor housing 5 before clamping is stable; in addition, the fourth liquid supply channel 71 corresponds to the auxiliary hydraulic cylinder 36, and the three liquid supply channels 71 corresponding to the above-mentioned lever-type hydraulic cylinder 4 are not connected to each other, and the purpose of independent control is achieved through the liquid supply device; optionally, as Figure 8 As shown, the workbench 11 is also provided with a second auxiliary support assembly 29, which has the same structure as the first auxiliary support assembly 33 and is used to auxiliary support the edge portion 52 to alleviate vibration during processing in the upright state.

[0065] In a preferred embodiment, the top surfaces of the first support seat 24, the second support seat 27 and the third support seat 32 are provided with seat holes 63, and the workbench 11 also has an air supply channel 61, each seat hole 63 is connected to the air supply channel 61 through a corresponding air supply branch 62, and the outer interface of the air supply channel 61 is connected to the air outlet of the air supply device;

[0066] like Figure 1 and Figure 7 As shown, the first support seat 24 and the third support seat 32 both have an air supply branch 62 that passes through from top to bottom, and the seat hole 63 is connected to the air supply channel 61 through the corresponding air supply branch 62. When the motor housing 5 is installed upright or inverted, the corresponding seat hole 63 will be covered. Figure 1 and Figure 5As shown, an air nozzle 64 is provided at the external interface of the air supply channel 61, and the air nozzle 64 is connected to different air outlets of the air supply device. If the air supply device feeds back that the air pressure in the air supply channel 61 corresponding to a certain air outlet rises and reaches a preset pressure, it means that the end face of the motor housing 5 blocks the corresponding seating hole 63, and the clamping is stable and the positioning is accurate. If the air pressure is lower than the preset pressure, it means that gas flows out from the seating hole 63 to the outside along the gap between the motor housing 5 and the first support seat 24 or the third support seat 32, and it is necessary to adjust each clamp to improve the clamping stability. If there is no change in the air pressure, it means that the motor housing 5 does not cover the corresponding seating hole 63, and it is necessary to readjust the positioning of the motor housing 5, so that the user can understand the clamping state more accurately, make timely adjustments, and reduce processing accidents caused by unstable clamping or positioning errors. Preferably, at least two air supply channels 61 are provided, one for each seating hole 63 of the first clamping mechanism 2, and the other for each seating hole 63 of the second clamping mechanism 3, so that the two clamping mechanisms can be used independently without interfering with each other.

[0067] In a preferred embodiment, a plurality of anti-error rods 26 are provided on the workbench 11 along the second direction away from each second fixture 23, for initial positioning of the motor housing 5 when it is switched to the normal state;

[0068] like Figure 1 and Figure 2 As shown, the number of anti-error rods 26 is at least two, and they are symmetrically arranged based on the first symmetry plane. The normal direction of the first symmetry plane is the third direction, and the first axis is located in the first symmetry plane, cooperating with the outer surface of the first support column 21 to play a role of preliminary fixing. When the worker puts the motor housing 5 on the outside of the first support column 21, if the position is incorrect, it will be lifted up by the anti-error rod 26. At this time, the worker needs to manually adjust to complete the preliminary positioning. In addition, in order to avoid the anti-error rod 26 being too close to the outer surface of the first support column 21, resulting in the motor housing 5 being unable to be inserted between the anti-error rod 26 and the first support column 21, a 1-5 cm gap is reserved in the horizontal direction between the anti-error rod 26 and the first support column 21 to facilitate quick completion of the preliminary positioning.

[0069] In a preferred embodiment, the first clamping mechanism 2 further includes a precision positioning component, which is used for precise positioning of the first clamp 22 and the second clamp 23 before clamping.

[0070] like Figure 3 , Fig. 9 and Fig.10As shown, the first end surface of the motor housing 5 has a first positioning hole 53, and the edge of the edge portion 52 has a side wall 55; the fine positioning assembly includes an elastic positioning pin 25 arranged on the workbench 11, and the top end of which can be inserted into the first positioning hole 53, the second support seat 27 is located on the inner side of the side wall 55, and a positioning hydraulic cylinder 28 is provided at the position of the outer side of the side wall 55 corresponding to the second support seat 27. After preliminary positioning, the position of the motor housing 5 is manually adjusted so that the elastic positioning pin 25 is inserted into the first positioning hole 53, and then the motor housing 5 is swung around the elastic positioning pin 25 as the center, so that the side wall 55 of the motor housing 5 is It abuts against the side of the second support seat 27, and then the telescopic rod of the positioning hydraulic cylinder 28 is extended to abut against the side wall 55 to complete the positive positioning of the motor housing 5. Optionally, a second protrusion is provided on the side wall 55 near the surface of the second support seat 27. During the fine positioning, the second protrusion abuts against the side of the second support seat 27 to avoid the entire surface of the side wall 55 abutting against the side of the second support seat 27, causing the motor housing 5 to tilt or the clamping to be unstable. In addition, the workbench 11 has a fifth liquid supply channel 71 corresponding to the positioning hydraulic cylinder 28 to avoid interference with the previous four channels, thereby achieving the purpose of independent control.

[0071] In a preferred embodiment, the second clamping mechanism 3 includes a plurality of second positioning posts 34 disposed on the workbench 11 for accurate positioning before clamping by the third clamp 31;

[0072] like Figure 3 and Figure 4 As shown, a plurality of second positioning holes 54 are provided on the surface of the second end away from the first end. When the motor housing 5 is in an inverted state, each second positioning column 34 is inserted into the corresponding second positioning hole 54; the second positioning column 34 also includes a column portion passing through the second positioning hole 54, and a flange portion connected to the workbench 11. The column portion of the second positioning column 34 passes through the second positioning hole 54, thereby achieving precise positioning in the inverted state and ensuring the stability of the motor housing 5 in the inverted state.

[0073] Usage process: Before using the processing fixture, first drive the fluid supply device to recover the hydraulic oil in all the lever-type hydraulic cylinders 4 into the fluid supply device through the relaxation channel. At this time, the hydraulic rod 42 contracts into the cylinder body 41, and then under the action of the lever support 44, the clamping plate 43 is tilted away from the end of the hydraulic rod 42. The projection of the clamping plate 43 along the first direction after swinging does not fall into the projection of the motor housing 5 along the first direction, and will not interfere with the installation of the motor housing 5. Then, the main body 51 is mounted outside the first support column 21. If the position is not placed correctly, the anti-error rod 26 will be against the second end of the motor housing 5. At this time, the worker needs to preliminarily adjust the position of the motor housing 5 so that the main body 51 falls between the anti-error rod 26 and the first support column 21 to complete the preliminary fixation, and manually adjust the motor housing 5 so that the top end of the elastic locating pin 25 is inserted into the first locating hole 53, so that the elastic locating pin 25 is inserted into the first locating hole 5 3, and then swing the motor housing 5 with the elastic positioning pin 25 as the center, so that the side wall 55 of the motor housing 5 abuts against the side of the second support seat 27, and then extend the telescopic rod of the positioning hydraulic cylinder 28 to abut against the side wall 55, so as to complete the precise positioning of the motor housing 5 in the right position, and then drive the hydraulic oil outlets corresponding to the first clamp 22 and the second clamp 23 through the liquid supply device to transport hydraulic oil into the corresponding liquid supply channel 71, and drive the hydraulic rod 42 of the corresponding lever hydraulic cylinder 4 to extend, and under the action of the lever support 44 as a fulcrum, the clamping plate 43 moves downward away from the end of the hydraulic rod 42, and the clamping plate 43 as the first clamp 22 applies a first downward pressure to the first end of the motor housing 5, and the clamping plate 43 as the second clamp 23 applies a second downward pressure to the edge portion 52, and cooperates with the first support seat 24 to complete the clamping of the motor housing 5 in the right position, and after the clamping is stable, it is processed by using a machine tool;

[0074] After the processing in the normal state is completed, all the hydraulic rods 42 are driven to retract through the liquid supply device, the user takes out the motor housing 5, turns the motor housing 5 over, places the second end of the motor housing 5 on the third support seat 32, adjusts the motor housing 5, inserts the second positioning column 34 into the second positioning hole 54, completes the precise positioning, and then drives the hydraulic oil outlet corresponding to the third clamp 31 of the liquid supply device to deliver hydraulic oil to the corresponding liquid supply channel 71, drives the hydraulic rod 42 of the corresponding lever hydraulic cylinder 4 to extend, and under the action of the lever support 44 as a fulcrum, the clamping plate 43 Move downward away from the end of the hydraulic rod 42, and the clamping plate 43 serving as the third clamp 31 presses downward the first protrusion on the outside of the main body 51, applying a third downward pressure to complete the inverted clamping of the motor housing 5. After the clamping is stable, the telescopic rod of the auxiliary hydraulic cylinder 36 is extended upward to support the edge portion 52, thereby alleviating vibration during processing and preventing knife marks on the processed surface. Processing is performed using a machine tool. After the processing in the inverted state is completed, all the hydraulic rods 42 are driven to retract through the liquid supply equipment, and the user takes out the motor housing 5 to complete the processing of the two end surfaces of the motor housing 5.

[0075] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0076] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A processing fixture capable of clamping both end surfaces of a motor housing, characterized in that: include: Workbench (11); A first clamping mechanism (2) is arranged on the workbench (11), comprising a first support column (21) and a plurality of first clamps (22) arranged at the top of the first support column (21), wherein the first support column (21) has a first axis, the extension direction of the first axis is a first direction, and a plurality of second clamps (23) are arranged on one side of the first support column (21) along a second direction; The second clamping mechanism (3) is arranged on the workbench (11) and is located on one side of the first support column (21) along the third direction, the third direction, the second direction and the first direction are perpendicular to each other, and the second clamping mechanism (3) comprises a plurality of third clamps (31) distributed in an array in a circumferential direction with a second axis as the center, and the extension line direction of the second axis is the first direction.

2. The processing fixture capable of clamping both end surfaces of a motor housing according to claim 1, characterized in that: The first clamp (22), the second clamp (23) and the third clamp (31) all adopt a lever-type hydraulic cylinder (4), each of the lever-type hydraulic cylinders (4) comprises a cylinder body (41), a hydraulic rod (42) which can be extended and retracted along the first direction is provided at the middle of the top end of the cylinder body (41), a clamping plate (43) is hinged at the top end of the hydraulic rod (42), a lever support (44) is hinged at the middle of the clamping plate (43), and the bottom end of the lever support (44) is hinged to the top end of the cylinder body (41).

3. The processing fixture capable of clamping both end surfaces of a motor housing according to claim 2, characterized in that: The workbench (11) is provided with a plurality of fluid supply channels (71), the fluid supply port of each lever-type hydraulic cylinder (4) is connected to the corresponding fluid supply channel (71) through a corresponding fluid supply branch (72), the external interface of each fluid supply channel (71) is connected to the oil outlet of the fluid supply device, and the workbench (11) is also provided with a release channel, the fluid outlet of each lever-type hydraulic cylinder (4) is connected to the release channel, and the external interface of the release channel is connected to the oil return port of the fluid supply device.

4. The processing fixture capable of clamping both end surfaces of a motor housing according to claim 3 is characterized in that: The first clamping mechanism (2) comprises two first support seats (24) arranged on the top surface of the workbench (11), and a second support seat (27) arranged on the first support column (21) near the second clamp (23) along the second direction.

5. The processing fixture capable of clamping both end surfaces of a motor housing according to claim 4, characterized in that: The second clamping mechanism (3) further comprises a plurality of third support seats (32) arranged on the workbench (11), and a plurality of first auxiliary support components (33) arranged on one side of each of the third support seats (32) along the second direction.

6. The processing fixture capable of clamping both end surfaces of a motor housing according to claim 5, characterized in that: The first auxiliary support assembly (33) comprises a compensation rod (35) and an auxiliary hydraulic cylinder (36) arranged at the top end of the compensation rod (35); a fluid supply branch (72) is provided inside the compensation rod (35); and the auxiliary hydraulic cylinder (36) is connected to the corresponding fluid supply channel (71) through the fluid supply branch (72) inside the compensation rod (35).

7. The processing fixture capable of clamping both end surfaces of a motor housing according to claim 6, characterized in that: The top surfaces of the first support seat (24), the second support seat (27) and the third support seat (32) are all provided with seating holes (63), and the workbench (11) also has an air supply channel (61), each of the seating holes (63) is connected to the air supply channel (61) through a corresponding air supply branch (62), and the external interface of the air supply channel (61) is connected to the air outlet of the air supply equipment.

8. The processing fixture capable of clamping both end surfaces of a motor housing according to claim 7, characterized in that: A plurality of error prevention rods (26) are provided on the workbench (11) along the second direction away from each of the second clamps (23).

9. The processing fixture capable of clamping both end surfaces of a motor housing according to claim 8, characterized in that: The first clamping mechanism (2) further comprises a precision positioning component, wherein the precision positioning component is used for precise positioning of the first clamp (22) and the second clamp (23) before clamping.

10. The processing fixture capable of clamping both end surfaces of a motor housing according to claim 9, characterized in that: The second clamping mechanism (3) comprises a plurality of second positioning columns (34) arranged on the workbench (11) and used for accurate positioning before clamping by the third clamp (31).

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