Stress releasing structure, linear motor and linear rotating motor

Abstract

The utility model discloses a stress release structure, a linear motor and a linear rotating motor, the stress release structure comprises a first housing and a second housing, the first housing and the second housing are installed in a mutual cooperation manner, the first housing is a groove-shaped structure, the side surface of the first housing is provided with at least one stress release groove, and the stress release groove is provided with a plurality of stress release grooves. The side face of the first shell extends outwards to be provided with an installation foot, and the installation foot and the stress release groove are located on the same side face of the first shell. The side face of the linear motor module is in contact with the inner side face of the first shell, the stress release groove is formed in the side face of the first shell, the stress of the motor is reduced, the installation feet serve as additional stress absorption structures, the installation feet and the stress release groove are located on the same plane, the structure of the first shell with the stress release groove is stronger, and the service life of the motor is prolonged. And the stress transmission is more stable, and the stress on the first shell is more favorably eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a stress release structure, a linear motor and a linear rotary motor. Background Art

[0002] A linear-rotary motor is a motor capable of providing both linear and rotary motion. The design concept of this motor integrates two distinct motion modes into a single motor unit, making mechanical systems more compact and efficient while simplifying control system design. These motors play a vital role in automated control systems in numerous fields, including precision manufacturing, semiconductor processing, medical equipment, and aerospace.

[0003] With the advancement of technology and the development of application fields, more and more application scenarios require equipment with higher integration and compactness. However, existing linear rotary motors are installed in narrow spaces, and the housing size and thickness are greatly reduced, resulting in poor stress relief. Utility Model Content

[0004] The present application provides a stress release structure, a linear motor and a linear rotary motor, which solve the technical problem in the prior art that the stress of the linear rotary motor cannot be well released after being installed in a narrow space.

[0005] The present application provides a stress release structure, which is arranged on the first shell of the motor. The first shell is a groove-type structure. At least one stress release groove is provided on the side of the first shell. The groove surface of the stress release groove is a complete plane. The side of the first shell is extended outward to provide a mounting foot. The mounting foot and the stress release groove are located on the same side of the first shell.

[0006] In some embodiments, a buffer pad is provided in the stress relief groove.

[0007] In some embodiments, an arcuate groove is provided at one of the corners on the inner side of the first shell, and the corners of the object installed in the first shell are arranged corresponding to the arcuate groove, so that a distance is provided between the corner of the installed object and the side of the arcuate groove.

[0008] In some embodiments, the stress relief groove is a groove body with side surfaces on all four sides.

[0009] In some embodiments, the side of the first shell that contacts the installation object is thickened to form a stress absorbing portion.

[0010] In some embodiments, the stress absorbing portion at least covers a side surface of the installation object and / or an area other than the side surface.

[0011] In some embodiments, the thickness of the mounting foot is greater than the thickness of the stress absorbing portion.

[0012] In some embodiments, the stress relief groove is strip-shaped, and the stress relief groove covers at least more than half of the area of the side surface of the first housing.

[0013] A linear motor includes a first housing, a second housing, and a linear motor module. The stress relief structure according to any one of the above technical solutions is provided on the first housing. The linear motor module is installed in the space formed after the first housing and the second housing are assembled, and the linear motor module is disposed close to the stress relief structure.

[0014] A linear rotary motor includes a first housing, a second housing, a linear motor module, and a rotary motor module. The linear motor module includes a stator, a mover, and a slider. The slider is installed on the mover, and the rotary motor module is installed on the slider. The stress relief structure according to any one of the above technical solutions is provided on the first housing. The linear motor module and the rotary motor module are installed in the space formed after the first housing and the second housing are assembled, and the linear motor module is disposed close to the stress relief structure.

[0015] The beneficial effects of the present application are as follows: The side surface of the linear motor module is in contact with the inner side surface of the first housing, and the stress relief groove is provided on the side surface of the first housing, reducing the stress of the motor. Moreover, the mounting feet also serve as additional stress absorption structures, and the mounting feet and the stress relief groove are located in the same plane, making the structure of the first housing with the stress relief groove stronger and the stress transmission more stable, which is more conducive to eliminating the stress on the first housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention.

[0017] Figure 1 It is one of the schematic structural diagrams of the first housing in the present application;

[0018] Figure 2 It is the schematic structural diagram of the second housing in the present application;

[0019] Figure 3 It is another schematic structural diagram of the first housing in the present application;

[0020] Figure 4 It is the schematic structural diagram of the linear motor module in the present application;

[0021] Figure 5 It is the schematic installation structure diagram of the linear rotary motor in the present application;

[0022] Figure 6The third structural schematic diagram of the first housing in this application; Stress relief

[0023] Figure 7 The fourth structural schematic diagram of the first housing in this application; Stress relief

[0024] Figure 8 The first structural schematic diagram of the wire management structure in this application; Wire management structure

[0025] Figure 9 The second structural schematic diagram of the wire management structure in this application; Wire management structure

[0026] Figure 10 The structural schematic diagram of the wire management part in this application;

[0027] Figure 11 The overall structural schematic diagram of the detachable wire management component in this application;

[0028] Figure 12 The installation structural schematic diagram of the limit bar and the rotary motor module in this application; Limit bar

[0029] Figure 13 The installation structural schematic diagram of the moving carrier and the rotary motor module in this application;

[0030] Figure 14 The front installation structural schematic diagram of the linear motion mechanism in this application;

[0031] Figure 15 The cooperation structural schematic diagram of the adjusting block and the anti-loosening strip in this application;

[0032] Figure 16 The back installation structural schematic diagram of the linear motion mechanism in this application;

[0033] Figure 17 The installation structural schematic diagram of the bushing and the rotary motor module in this application;

[0034] Figure 18 The cross-sectional view of the installation structure of the bushing and the rotary motor module in this application;

[0035] Figure 19 The structural schematic diagram of the bushing in this application;

[0036] Figure 20 Another structural schematic diagram of the bushing in this application;

[0037] Figure 21 The structural schematic diagram of the cooperation between the bushing and the first housing in this application.

[0038] Among them, 110 - the first housing; 1101 - the operation hole; 111 - the clearance part; 112 - the sunken groove; 113 - the guide rail mounting surface; 114 - the stress relief groove; 115 - the arc groove; 116 - the stress absorption part; 117 - the mounting feet; 118 - the terminal mounting groove; 119 - the air circuit mounting hole; 120 - the second housing; 130 - the linear motor module; 131 - the stator; 132 - the rotor; 133 - the slider; 134 - the guide rail; 135 - the connecting piece; 136 - the guard plate; 137 - the carrier block; 140 - the rotary motor module; 141 - the output shaft; 1411 - the ventilation hole; 1412 - the air duct; 142 - the limiting strip; 143 - the long slot; 144 - the moving carrier; 145 - the air circuit channel; 150 - the circuit unit; 151 - the circuit; 152 - the first circuit fixing part; 1521 - the base; 1522 - the wire arranging part; 1523 - the wire arranging groove; 153 - the second circuit fixing part; 154 - the grating scale; 155 - the wire arranging board; 156 - the cable connector; 157 - the mounting seat; 160 - the air circuit unit; 161 - the air circuit; 162 - the first air circuit fixing part; 163 - the second air circuit fixing part; 164 - the first air circuit swivel joint; 171 - the elastic part; 172 - the adjusting block; 173 - the adjusting groove; 174 - the connecting block; 175 - the anti-collision block; 176 - the anti-loosening strip; 177 - the anti-loosening cap; 180 - the bushing; 181 - the positioning plane; 182 - the positioning groove; 183 - the boss; 184 - the gasket; 185 - the first sealing ring; 186 - the chute; 187 - the wedge block; 188 - the second sealing ring; 189 - the cavity. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0040] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0041] In addition, the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0042] According to one aspect of the present utility model, a stress relief structure is provided. The stress relief structure can be provided on the motor housing and can effectively absorb the stress transmitted from the motor to the housing. The stress relief structure can be applied to any suitable motor, including but not limited to a linear motor or a linear rotary motor. Therefore, according to another aspect of the present utility model, a linear motor and a linear rotary motor are also provided. The stress relief structure, linear motor, and linear rotary motor of the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0043] As Figure 1 , Figure 2 shown, the motor housing includes a first housing 110 and a second housing 120. The first housing 110 is a trough-shaped structure. Specifically, the first housing 110 is a trough-shaped structure with side plates around it. The second housing 120 is directly mounted at the port of the first housing 110 through bolts.

[0044] The first housing 110 and the second housing 120 can also be flat structures. A ring-shaped side plate is provided between the first housing 110 and the second housing 120. Mounting posts are provided on the side surface of the ring-shaped side plate. The mounting posts can be provided on the inner side wall of the ring-shaped side plate or on the outer side wall of the ring-shaped side plate. The first housing 110 and the second housing 120 clamp the ring-shaped side plate, and then bolts pass through the mounting posts to fix the first housing 110, the second housing 120, and the ring-shaped side plate.

[0045] The materials of the first housing 110 and the second housing 120 can be aluminum alloy or magnesium alloy. On the premise of ensuring their strength and thermal conductivity, the machining accuracy of the first housing 110 and the second housing 120 can be ensured.

[0046] Further, as Figure 6As shown in the figure, at least one stress relief groove 114 is provided on the side of the first housing 110 close to the linear motor module 130. The side of the linear motor module 130 is in contact with the inner side of the first housing 110. Mounting feet are provided on the outer extension of the side of the first housing. The mounting feet and the stress relief groove are located on the same side of the first housing. And a buffer pad is provided in the stress relief groove. The material of the buffer pad can be rubber or polyurethane and is pasted in the stress relief groove.

[0047] In this embodiment, the linear motor module 130 is installed in the first housing 110, and the rotary motor module 140 is installed on the slider 133 of the linear motor module 130. When the linear motor module 130 and the rotary motor module 140 are operating, especially the linear motor module 130, an uneven stress distribution will be generated. The connection points and contact surfaces between the linear motor and the first housing 110 generate more stress than other areas. The stress of the entire motor is concentrated on the linear motor module 130. The stress relief groove 114 is the closest to the linear motor module 130. The side of the linear motor module 130 is in contact with the inner side of the first housing 110. And the stress relief groove 114 is provided on the side of the first housing 110. And the first housing is installed through the mounting feet. At the same time, the buffer pad can provide a leveling thickness for the first housing and support it. At the same time, through the mounting feet and the buffer pad, the stress relief effect of the stress relief groove can be further improved, making the stress of the entire housing more uniform and being able to release the stress of the motor to the greatest extent.

[0048] The stress relief groove is a groove body with sides provided all around. Its specific structure can be clearly understood through description, so it is not shown in the figure again, so that the stress can be effectively dispersed in this area, rather than concentrated on a certain point in the stress relief groove, extending the fatigue life of the first housing.

[0049] Further, the groove surface of the stress relief groove 114 is a complete plane, so that the stress relief groove can better absorb and release stress, avoiding the influence of setting mounting holes on the stress relief groove on its stress relief. The stress relief groove 114 is set at the middle position of the outer side of the first housing 110. The stress relief groove 114 is set to be long and at least covers more than half of the area of the outer side of the first housing 110, providing sufficient stress relief paths for the first housing 110 and making the stress relief of the first housing 110 more uniform.

[0050] Multiple stress relief grooves 114 can be provided on the side of the first housing 110, which can disperse the stress more evenly, help reduce the overall stress level of the structure, and improve the overall stability and reliability.

[0051] Further, as Figure 7As shown in the figure, an arc-shaped groove 115 is provided inside the first housing 110 corresponding to the corners of the linear motor module 130. The corners of the installation object are correspondingly arranged with the arc-shaped groove. During the installation process, for the installation object and the linear motor module, a spacing is provided between the corner of the linear motor module 130 and the side surface of the arc-shaped groove 115, realizing the overhead state of the corner of the linear motor module 130.

[0052] Since there is a spacing between the arc-shaped groove 115 and the corner of the linear motor module 130, the corner stress of the linear motor module 130 is eliminated. The stress of the housing is mainly concentrated on the two side surfaces rather than at the corners, which helps to disperse the stress. When the motor is running, the stress is more evenly distributed on the side surfaces of the housing rather than concentrated at the corners, which helps to reduce the local stress concentration phenomenon.

[0053] Furthermore, as Figure 7 shown, the four corners inside the first housing 110 are all processed with arc chamfers, reducing the stress concentration at the corners of the first housing 110, making the stress distribution of the first housing 110 more uniform, improving the strength of the first housing 110, and making the linear motor module 130 and the rotary motor module 140 work more stably.

[0054] Preferably, referring to Figure 7 , the side surface of the first housing 110 in contact with the linear motor module 130 is thickened to form a stress absorption portion 116. Further, the stress absorption portion 116 at least covers the side surface and / or the area outside the side surface of the linear motor module 130. In this embodiment, the stress absorption portion 116 on the short side of the first housing 110 covers the linear motor module 130, and the stress absorption portion 116 on the long side of the first housing 110 covers the area outside the linear motor module 130.

[0055] Since the side surface of the first housing 110 in contact with the linear motor module 130 is thickened with the stress absorption portion 116, the first housing 110 can better absorb the stress of the linear motor module 130, making the structural strength between the first housing 110 and the linear motor module 130 higher;

[0056] The stress absorption portion 116 can also be set to the entire side surface in contact with the first housing 110, further improving the overall structural strength of the first housing 110, and can more effectively disperse the stress generated by the linear motor module 130, avoiding deformation of the housing during operation.

[0057] Furthermore, referring to Figure 6, on the side of the long side of the first housing 110, mounting feet 117 are provided extending outward. In this embodiment, the mounting feet 117 and the stress relief grooves 114 are located on the same side of the first housing 110. The thickness of the mounting feet 117 is greater than the thickness of the stress absorption portion 116, making the installation of the first housing 110 more stable. The mounting feet 117 also serve as additional stress absorption structures, and the mounting feet 117 and the stress relief grooves 114 are located in the same plane, making the structure of the first housing 110 with the stress relief grooves 114 stronger, the stress transfer more stable, and more conducive to the elimination of stress on the first housing 110.

[0058] Referring to Figures 5 - 7 , the motor housing with the stress relief grooves 114 is applied in a linear motor. The linear motor module 130 is arranged at a corner of the first housing 110 close to the stress relief structure. The linear motor module 130 is attached to the side surface of the first housing 110, and the first housing 110 disperses and eliminates the stress generated by the linear motor module 130.

[0059] Referring to Figures 5 - 7 , the motor housing with the stress relief grooves 114 is applied in a linear rotary motor. The rotary motor module 140 is connected to the slider 133 of the linear motor module 130 through a pressure sensor 135. The stress generated by the rotary motor module 140 is transmitted to the linear motor module 130 and then transmitted to the first housing 110 to eliminate the stress.

[0060] Clearance portions 111 are provided at the positions corresponding to the motor modules on the first housing 110 and the second housing 120.

[0061] In this embodiment, by providing the clearance portions 111 at the positions corresponding to the motor modules on the first housing 110 and the second housing 120, the clearance portions 111 can create a concave space at the corresponding housing positions of the motor modules. On the premise of ensuring the installation distance between the motor modules and the housing side walls, the motor modules can be closer to the first housing 110 and the second housing 120. The clearance portions 111 provide a certain installation distance for the motor modules without affecting the working performance of the motor, so that the motor housing can be made thinner.

[0062] Specifically, the clearance portion 111 is a groove provided on the inner end surfaces of the first housing 110 and the second housing 120;

[0063] Or,

[0064] The clearance portion 111 is a hollowed-out groove opened on the end surfaces of the first housing 110 and the second housing 120.

[0065] Since opening hollow grooves in the housing and reducing the housing thickness will affect its strength, a strengthening structure is provided around the clearance portion 111. In this embodiment, ribs are provided around the clearance portion 111. The strength of the ribs is greater than that of the housing. The thickness of the ribs can be the same as the housing thickness or slightly greater than the housing thickness without affecting the installation of internal modules. The material of the ribs can be carbon fiber or glass fiber reinforced plastic, etc. Of course, a reinforcing coating such as epoxy resin, carbon fiber cloth, ceramic coating, glass fiber reinforced plastic, metal coating, etc. can also be applied to the edge of the clearance portion 111.

[0066] The provision of the clearance portion 111 can also reduce the weight of the housing and make the motor lightweight.

[0067] As Figure 3 shown, a sinking groove 112 is provided at the side port of the first housing 110. The shape of the second housing 120 is the same as that of the sinking groove 112. The second housing 120 is installed in the sinking groove 112. The first housing 110 and the second housing 120 are installed through the cooperation of the sinking groove 112, which can further reduce the thickness of the housing. The surface of the sinking groove 112 is anodized or plated to improve its wear resistance and corrosion resistance. When the first housing 110 and the second housing 120 are installed, a sealing strip or sealant is provided around the sinking groove 112 to prevent external dust and water from entering the housing.

[0068] As Figure 1 、 Figure 3 shown, a guide rail 134 mounting surface 113 is machined on the end face inside the first housing 110. The guide rail 134 of the linear motor module 130 is mounted on the guide rail 134 mounting surface 113, which simplifies the mounting plate structure of the guide rail 134 of the linear motor module 130 and further reduces the overall thickness of the motor. When machining the guide rail 134 mounting surface 113, a high-precision machine tool is used for machining, and then the guide rail 134 mounting surface 113 is ground to improve the machining accuracy and surface smoothness, so that the guide rail 134 is mounted more precisely.

[0069] As Figure 4 、 Figure 5 shown, the ultra-thin motor housing is applied to a linear motor. The linear motor module 130 includes a stator 131, a mover 132, a slider 133 and a guide rail 134. The guide rail 134 is mounted on the guide rail 134 mounting surface 113. The stator 131 drives the mover 132 to make a linear movement on the guide rail 134 through the slider 133. The linear motor module 130 is mounted at the clearance portion 111 inside the first housing 110, and the guide rail 134 is directly mounted on the housing, reducing the thickness of the motor housing.

[0070] As Figure 5As shown, the ultra-thin motor housing is applied in a linear rotary motor (ZR motor). The linear rotary motor includes a linear motor module 130 and a rotary motor module 140. The linear motor module 130 is installed at the clearance part 111 inside the first housing 110. The rotary motor module 140 is connected to the slider 133 of the linear motor module 130 through a pressure sensor 135. The rotary motor module 140 is correspondingly arranged at the clearance part 111 inside the first housing 110. On the premise of ensuring the spacing between the linear motor module 130 and the rotary motor module 140 and the inner walls of the first housing 110 and the second housing 120, the overall thickness of the housing can be reduced.

[0071] Furthermore, as Figure 8 、 Figure 9 shown, a terminal installation groove 118 and an air circuit installation hole 119 are provided on the side surface of the first housing 110. Terminals are arranged on the terminal installation groove 118, and an air circuit joint is arranged in the air circuit installation hole 119. A first circuit fixing part 152 and a first air circuit fixing part 162 are provided on the end surface of the first housing 110. A slider is slidably arranged inside the first housing 110. In this embodiment, a second circuit fixing part 153 and a second air circuit fixing part 163 are provided on the slider 133 of the linear motor module 130. The linear motor module drives the second circuit fixing part 153 and the second air circuit fixing part 163 to move up and down through the slider.

[0072] During the installation process, a circuit unit 150 and an air circuit unit 160 need to be installed inside the housing. The circuit unit 150 and the air circuit unit 160 respectively include a circuit line 151 and an air circuit 161. The circuit line 151 passes through the terminal installation groove, the first circuit fixing part and the second circuit fixing part in sequence. The air circuit 161 passes through the air circuit installation hole, the first air circuit fixing part and the second air circuit fixing part in sequence, so that the circuit line 151 between the first circuit fixing part and the second circuit fixing part and the air circuit 161 between the first air circuit fixing part and the second air circuit fixing part are set in a U shape. During the process of the linear motor module 130 driving the slider 133 to move up and down, the U-shaped circuit line 151 and air circuit 161 increase their travel, avoiding the influence of the travel of the circuit line 151 and the air circuit 161 on the movement of the linear motor module 130, making the circuit line 151 and the air circuit 161 inside the motor distributed in an orderly manner, and the travel of the circuit line 151 and the air circuit 161 covering the movement interval of the linear motor module 130, improving the safety of the motor operation.

[0073] Further, a wire arranging board 155 is provided at the corner of the first housing 110 corresponding to the circuit 151. The material of the wire arranging board 155 can be the same as that of the first housing 110, and the wire arranging board 155 is integrally formed with the first housing 110, so that the structural strength of the wire arranging board 155 is greater. The circuit 151 is limited and bent by the wire arranging board 155 and then installed in the first circuit fixing part 152. The circuit 151 is arranged between the wire arranging board 155 and the inner side wall of the first housing 110 to limit the circuit 151, making the wiring of the circuit 151 in the first housing 110 neater. After the second housing 120 and the first housing 110 are installed, the second housing 120 plugs the upper port of the wire arranging board 155 to prevent the circuit 151 from detaching from the wire arranging board 155.

[0074] The wire arranging board 155 can also be set as a detachable structure. The wire arranging board 155 and the first housing 110 are connected by bolts or clamped or bonded to adapt to the layout requirements of different circuits 151 and facilitate adjustment. The material of the wire arranging board 155 can be made of insulating material to avoid direct contact between the circuit 151 and the metal shell, improving safety.

[0075] The circuit 151 is a flexible flat cable, and the circuit 151 is connected to the wiring terminal mounting groove 118 and the second circuit fixing part 153 through flexible flat cable connectors 156 respectively;

[0076] Further, referring to Figure 8 、 Figure 9 , a first air path turning joint 164 is installed in the air path mounting hole 119. The first air path fixing part 162 is a second air path turning joint, and the second air path fixing part 163 is a third air path turning joint;

[0077] Specifically, the first air path turning joint 164 is a 90° turn, the second air path turning joint is a 0° turn, and the third air path turning joint is a 145° turn. The air path turning joint is a mature application of the prior art and will not be elaborated in this patent application document. The air path 161 passes through a 90° turn through the first air path turning joint 164 and is arranged close to the side wall of the first housing 110. The air path 161 is bent 90° inside the first housing 110 and then connected to the second air path turning joint, and then extends out in the reverse direction. Then the air path 161 is bent into a U shape and connected to the third air path turning joint, realizing a U-shaped structure with a movable amount of the air path 161 in the first housing 110. The air path 161 can be adjusted as the slider 133 moves up and down.

[0078] The motor housing with a wire management structure is applied to a linear motor. The linear motor includes a circuit unit 150. The linear motor module 130 is installed in the first housing 110. The wire 151 of the circuit unit 150 is introduced into the first housing 110 through the terminal installation groove 118. The middle position of the wire 151 is defined in the first circuit fixing part 152. The end of the wire 151 is fixedly arranged on the second circuit fixing part 153. The wire 151 between the first circuit fixing part 152 and the second circuit fixing part 153 is arranged in a U shape. After the U-shaped arrangement, the wire 151 is connected to the linear motor module 130.

[0079] During the up-and-down movement of the slider 133 on the mover 132 of the linear motor module 130, the U-shaped arranged wire 151 can provide redundant length for the up-and-down movement of the slider 133, reducing the vertical height of the housing. At the same time, it avoids the arrangement of the wire 151 and the air path 161 from affecting the movement of the linear motor module 130 mutually, making the wire 151 and the air path 161 inside the motor distributed in an orderly manner, covering the movement range of the linear motor module 130, and improving the safety of the motor operation.

[0080] The motor housing with a wire management structure is applied to a linear rotary motor, including a linear motor module 130, a rotary motor module 140, a circuit unit 150 and an air path unit 160. The linear motor module 130 and the rotary motor module 140 are installed in the motor housing with a wire management structure. The wire 151 of the circuit unit 150 is introduced into the first housing 110 through the terminal installation groove 118. The middle position of the wire 151 is defined in the first circuit fixing part 152. The end of the wire 151 is fixedly arranged on the second circuit fixing part 153. The wire 151 between the first circuit fixing part 152 and the second circuit fixing part 153 is arranged in a U shape. After the U-shaped arrangement, the wire 151 is connected to the linear motor module 130 and the rotary motor module 140. The air path 161 of the air path unit 160 is introduced into the first housing 110 through the air path installation hole 119. The middle position of the air path 161 is fixedly arranged on the first air path fixing part 162. The end of the air path 161 is fixedly arranged on the second air path fixing part 163. The wire 151 between the first circuit fixing part 152 and the second circuit fixing part 153 and the air path 161 between the first air path fixing part 162 and the second air path fixing part 163 are arranged in a U shape.

[0081] Avoid the arrangement of the wire 151 and the air path 161 from affecting the movement of the linear motor module 130 mutually, making the wire 151 and the air path 161 inside the motor distributed in an orderly manner, covering the movement range of the linear motor module 130, and improving the safety of the motor operation.

[0082] Further, as Figures 8 - 10As shown, the first circuit fixing part 152 includes a base 1521 and a wire arranging part 1522. The base 1521 is detachably installed on the inner end face of the first housing 110. The wire arranging parts 1522 are multiple and arranged on the base 1521. The gaps between the wire arranging parts 1522 are set as wire arranging grooves 1523. The circuit 151 is arranged in the wire arranging grooves 1523. Specifically, the number of the wire arranging grooves 1523 is three.

[0083] As Figures 8 - 11 shown, a linear motor module 130, a rotary motor module 140, a circuit unit 150, a gas circuit unit 160 and a grating scale 154 are arranged in the motor housing. The grating scale 154 is installed on the side of the rotary motor module 140. The wire harnesses of the linear motor module 130, the rotary motor module 140 and the grating scale 154 are arranged in the corresponding wire arranging grooves 1523, and the wire harnesses are non-fixedly connected to the wire arranging grooves 1523. While the wire harnesses of the three do not interfere with each other, the freedom degree of the wire harnesses is improved, the bending of the wire harnesses during the movement process is reduced, and the service life of the wire harnesses is improved.

[0084] The uppermost end of the wire arranging groove 1523 is in the same plane as the port of the first housing 110. When the second housing 120 is installed at the port of the first housing 110, the second housing 120 just blocks the notch of the wire arranging groove 1523 to prevent the wire harness from disengaging from the wire arranging groove 1523.

[0085] As Figure 1 , Figures 8 - 11 shown, an installation seat 157 is arranged at the position of the inner end face of the first housing 110 corresponding to the first circuit fixing part 152. The base 1521 is fixed on the installation seat 157 by bolts, which is convenient for the disassembly and assembly of the first circuit fixing part 152.

[0086] The depths of the wire arranging grooves 1523 are different, and the number of the second circuit fixing parts 153 is the same as that of the wire arranging grooves 1523. By arranging the wire harnesses of the linear motor module 130, the rotary motor module 140 and the grating scale 154 in a staggered manner in the wire arranging grooves 1523 with corresponding depths and then correspondingly installing them on the corresponding second circuit fixing parts 153, the neat arrangement of the wire harnesses is realized.

[0087] Further, as Figure 12 shown, a limiting strip 142 is detachably arranged on the rotary motor module 140. A long hole 143 is formed in the limiting strip 142. The wire harness of the second circuit fixing part 153 passes through the long hole 143 and then is connected to the rotary motor module 140. The long hole 143 limits the wire harness of the rotary motor module 140, makes the wire harness arrangement in the housing neater, avoids the wire harness from contacting with the external moving mechanism when the linear motor module 130 and the rotary motor module 140 are working, and ensures the stable operation of the rotary motor module 140.

[0088] Specifically, a protective ring made of plastic or rubber is arranged inside the long strip hole 143, which can prevent the flexible cable from rubbing against the limit strip 142 when shaking and causing wear.

[0089] Furthermore, as Figure 12 、 Figure 13 shown, a moving carrier 144 is detachably and fixedly arranged on the rotary motor module 140. An air path channel 145 is arranged on the side of the moving carrier 144. The moving carrier 144 is fixedly connected to the slider 133 through a pressure sensor 135. The pressure sensor 135 straddles the moving carrier 144 and a guard plate 136 is fixedly arranged at the air path channel 145. An air path joint is fixedly arranged on the moving carrier 144. The air path 161 led out by the third air path turning joint bypasses the air path channel 145 and then is connected to the air path joint. The guard plate 136 protects the air path 161. At the same time, the air path 161 is arranged in the air path channel 145, preventing the air path 161 from protruding from the moving carrier 144 and preventing the air path 161 from rubbing against the side wall of the housing, improving the safety of the system air path 161 and avoiding damage to the air path 161.

[0090] The air path channel 145 can be two straight channels arranged on the moving carrier 144. The air path 161 penetrates into one of the straight channels and then winds around the outside of the moving carrier 144 and exits from the other straight channel;

[0091] The air path channel 145 can also be a complete channel opened on the moving carrier 144, which is arranged in a U shape on the side of the moving carrier 144;

[0092] Of course, the above two setting methods of the air path channel 145 can be inside the moving carrier 144 or in an open form on the surface of the moving carrier 144.

[0093] Furthermore, as Figure 14 shown, the motor further includes a carrier block 137 and an elastic member 171. The guide rail 134 of the linear motor module 130 is installed on the first housing 110. The slider 133 of the linear motor module 130 is slidably arranged on the guide rail 134. The carrier block 137 is fixedly arranged on the slider 133. A connecting portion 174 is fixedly arranged on the carrier block 134. One end of the elastic member 171 is connected to the first housing 110, and the other end of the elastic member 171 is fixedly connected to the connecting portion 174. The elastic member is arranged parallel to the guide rail. The elastic member is located between the rotary motor module and the guide rail, so that the pulling force of the elastic member can be closer to the guide rail and the force application direction of the guide rail is in its length direction;

[0094] The carrier block is provided with a mounting portion for fixedly installing the end of the pressure sensor. The mounting portion is a groove-shaped structure formed on the carrier block, and screw holes are provided on the mounting portion. The pressure sensor is fixed on the mounting portion by bolts. A second gas path fixing portion is fixedly arranged on the carrier block, and a stop block is arranged between the second gas path fixing portion and the mounting portion to prevent the gas path from affecting the detection of the pressure sensor.

[0095] When the linear motor module 130 drives the rotary motor module 140 to move, the elastic member 171 provides a pulling force to the carrier block 137 to offset the self-weights of the slider 133, the carrier block 137, and the rotary motor module 140, and does not affect the detection accuracy of the pressure sensor for the pressure on the rotary motor module 140; the moving carrier 144 and the slider 133 are connected by the pressure sensor. If the elastic member 171 is connected to the moving carrier 144 and the carrier block 137, the elastic member 171 will affect the detection data of the pressure sensor. Therefore, the two ends of the elastic member 171 are respectively fixedly connected to the first housing 110 and the carrier block 137, and the elastic force of the elastic member will not act on the pressure sensor and will not affect the detection result of the pressure sensor.

[0096] Specifically, the linear motion mechanism further includes an adjustment block 172. The adjustment block 172 is installed on the first housing 110. In this embodiment, the elastic member 171 is a spring. One end of the spring is fixedly connected to the adjustment block 172, and the other end of the spring is fixedly connected to the connecting portion 174. The elastic member 171 can also be a pneumatic spring or a hydraulic damper.

[0097] Further, the first housing 110 is provided with an adjustment groove 173 corresponding to the installation position of the adjustment block 172. The adjustment block 172 is installed in the adjustment groove 173. Screw holes are provided in the adjustment groove 173, and strip-shaped screw fixing holes are provided on the adjustment block 172. By adjusting the position of the adjustment block 172 in the adjustment groove 173 and then fixing it with bolts, the pulling force of the spring is adjusted to reduce the influence of the fatigue deformation of the spring on its pulling force. A limiting block is fixedly arranged directly below the adjustment groove. The distance between the limiting block and the lower end of the adjustment groove is less than the height of the adjustment block, and the adjustment block is slidably arranged in the adjustment groove so that the adjustment block will not slide out from the lower end of the adjustment groove.

[0098] As Figure 15 shown, two bolts are provided on the adjustment block 172, an anti-loosening strip 176 is provided on the adjustment block 172, and two anti-loosening caps 177 are provided on the anti-loosening strip 176. After the adjustment block 172 is fixed at a specified position, the anti-loosening caps 177 are buckled on the bolts to prevent the bolts from loosening.

[0099] Further, as Figure 16As shown in the figure, the linear motion mechanism further includes a collision prevention block 175, which is fixedly arranged on the carrier block 137. The collision prevention block is coated with rubber. The collision prevention block 175 is located on the straight line where the guide rail 134 is located. During the process of the linear motor module 130 driving the slider 133 to move, when the slider 133 moves to the limit position, the collision prevention block 175 abuts against the guide rail 134, preventing the linear motor module 130 from exceeding the motion stroke and playing a limiting and protective role for the linear motor module 130.

[0100] A linear rotary motor includes the linear motion mechanism according to any one of the above technical solutions.

[0101] Further, as Figures 17 - 20 As shown in the figure, a bushing 180 is fixedly arranged at the output end of the rotary motor module 140. Specifically, the bushing 180 is installed on the moving carrier 144. The output shaft 141 of the rotary motor module 140 passes through the bushing 180. A positioning plane 181 is arranged on the outer side wall of the bushing 180, and a positioning groove 182 is opened on the positioning plane 181. During detection, the detection head of the measuring instrument is arranged on the positioning plane 181 or can also be arranged in the positioning groove 182 for distance detection, providing different detection references for the measuring instrument. Thus, through multiple measurements with different detection references, the detection accuracy is improved, and further the installation of the bushing 180 is more accurate; moreover, through the arrangement of the bushing, the output shaft of the rotary motor module can be designed longer, and the bushing protects and limits the output shaft of the rotary motor module.

[0102] The positioning groove 182 can be a concave pit for positioning, or can be a long strip groove or a cross-shaped groove, which can limit the detection head of the measuring instrument and prevent measurement errors caused by the deflection of the position of the measuring instrument during the measurement process.

[0103] Specifically, there are four positioning planes 181. The four positioning planes 181 respectively correspond to the four faces of the housing. The distances between the bushing 180 and the four faces of the housing are measured by dial indicator respectively, improving the installation accuracy of the bushing 180.

[0104] A boss 183 is arranged on the installation surface of the bushing 180, and a groove is correspondingly arranged on the installation surface of the moving carrier 144. When installing the bushing 180, the boss 183 is inserted into the groove on the moving carrier 144 to achieve the positioning function and improve the installation accuracy.

[0105] Scale lines are arranged on the positioning plane 181, which is convenient for selecting accurate measurement positions and improving the measurement accuracy.

[0106] As Figure 21As shown, a chute 186 is provided on the side surface of the bushing 180 along its axial direction. A wedge block 187 is slidably arranged in the chute 186. By adjusting the position of the wedge block 187, an operation hole 1101 is formed on the side surface of the first housing 110. The bushing 180 passes through the operation hole 1101, so that the wedge block 187 cooperates with the operation hole 1101, thereby adjusting the coaxiality between the bushing 180 and the rotary motor module 140, and making the installation accuracy of the bushing 180 higher.

[0107] Specifically, the chute 186 is arranged on the center line of the positioning plane 181. By adjusting the position of the wedge block 187, the distance between the positioning plane 181 and the side surface of the housing can be directly adjusted, which is convenient for adjustment.

[0108] A sealing gasket 184 is arranged on the mounting surface of the bushing 180. The bushing 180 is mounted on the moving carrier 144 to prevent air leakage between the bushing 180 and the moving carrier 144.

[0109] A first sealing ring 185 is arranged inside the bushing 180 to seal the output shaft 141 of the rotary motor module 140 and the bushing 180, and prevent air leakage between the bushing 180 and the output shaft 141 of the rotary motor module 140.

[0110] As Figure 5 , Figures 17 - 21 shown, the bushing 180 is applied in a rotary motor. The moving carrier 144 is mounted on the rotary motor module 140, and the bushing 180 is mounted on the moving carrier 144. The output shaft 141 of the rotary motor module 140 passes through the moving carrier 144 and the bushing 180. A second sealing ring 188 is arranged inside the moving carrier 144. An air vent hole 1411 is arranged on the side surface of the output shaft 141 of the rotary motor module 140. The air vent hole 1411 is located between the first sealing ring 185 and the second sealing ring 188. A cavity 189 is arranged between the output shaft 141 of the rotary motor module 140 and the moving carrier 144 and the bushing 180. The first sealing ring 185 and the second sealing ring 188 are located at both ends of the cavity 189. An air passage 1412 is arranged axially on the output shaft 141 of the rotary motor module 140. An air path joint is fixedly arranged on the moving carrier 144 to conduct the air path joint, the air vent hole 1411 and the air passage 1412. A suction cup is mounted at the end of the output shaft 141 of the rotary motor module 140 to suck the product. By arranging the moving carrier 144 and the bushing 180, the length of the output shaft 141 of the rotary motor module 140 can be greatly increased, realizing long-distance operation of the suction cup. The cavity 189 can not only provide a gas flow channel between the air path joint and the air vent hole 1411, but also reduce the contact area between the output shaft 141 of the rotary motor module 140 and the moving carrier 144 and the bushing 180, reduce wear, and extend the service life of the rotary motor module 140.

[0111] As Figure 5 , Figures 17 - 21 shown, the bushing 180 is applied in a linear rotary motor, which includes a housing composed of a first housing 110 and a second housing 120. The linear motor module 130 is installed in the first housing 110. The rotary motor module 140 is installed on the slider 133 of the linear motor module 130 through a pressure sensor. The moving carrier 144 is installed on the rotary motor module 140. The bushing 180 is installed on the moving carrier 144. The output shaft 141 of the rotary motor module 140 passes through the moving carrier 144 and the bushing 180.

[0112] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0113] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A stress relief structure is disposed on the first housing of the motor, and is characterized in that, The first housing is of a groove-shaped structure. At least one stress relief groove is provided on the side surface of the first housing. The groove surface of the stress relief groove is a complete plane. An installation foot is provided on the side surface of the first housing extending outward. The installation foot and the stress relief groove are located on the same side surface of the first housing.

2. The stress relief structure according to claim 1, characterized in that, A buffer pad is provided in the stress relief groove.

3. The stress relief structure according to claim 1, characterized in that, An arc-shaped groove is provided at one of the inner corners of the first housing. The corner of the object installed in the first housing corresponds to the arc-shaped groove, so that there is a spacing between the corner of the object and the side surface of the arc-shaped groove.

4. The stress relief structure according to claim 1, wherein The stress relief groove is a groove body with side surfaces provided all around.

5. The stress relief structure according to claim 1, characterized in that The side surface of the first housing in contact with the object is thickened to form a stress absorption portion.

6. The stress relief structure according to claim 5, wherein The stress absorption portion covers at least the side surface of the object and / or the area outside the side surface.

7. The stress relief structure according to claim 5, characterized in that, The thickness of the installation foot is greater than the thickness of the stress absorption portion.

8. The stress relief structure according to claim 1, wherein The stress relief groove is strip-shaped and covers at least more than half of the side surface area of the first housing.

9. A linear motor, characterized in that, It includes a first housing, a second housing and a linear motor module. The first housing is provided with the stress relief structure according to any one of claims 1-8. The linear motor module is installed in the space formed after the first housing and the second housing are assembled, and the linear motor module is arranged close to the stress relief structure.

10. A linear rotary motor, characterized in that, It includes a first housing, a second housing, a linear motor module and a rotary motor module. The linear motor module includes a stator, a mover and a slider. The slider is installed on the mover. The rotary motor module is installed on the slider. The first housing is provided with the stress relief structure according to any one of claims 1-8. The linear motor module and the rotary motor module are installed in the space formed after the first housing and the second housing are assembled, and the linear motor module is arranged close to the stress relief structure.

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