Linear motor module with protective cover easy to disassemble

Abstract

The utility model discloses a linear motor module with a protective cover easy to detach. The linear motor module comprises a base, a linear motor arranged in the base, a material carrying table arranged on the base in a sliding mode, a flexible steel belt penetrating through the material carrying table to seal a machine shell and the protective cover arranged on the material carrying table in a covering mode. The protective cover comprises a first cover body and a second cover body which are spliced and connected in a split mode. The first cover body covers the first end of the material carrying table, the second cover body covers the second end of the material carrying table, and avoiding grooves are formed in the two opposite sides of the second cover body correspondingly, so that the workpiece mounting plates on the two opposite sides of the material carrying table penetrate through the avoiding grooves; a sealing splicing structure is arranged between the splicing end of the first cover body and the splicing end of the second cover body so that sealing abutting can be achieved. The protective cover is formed by splicing the first cover body and the second cover body through the split splicing structure, when the flexible steel belt needs to be replaced, the load does not need to be detached from the loading table, only the first cover body and the second cover body need to be detached respectively, and therefore maintenance of the linear motor module is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a linear motor module with an easily detachable protective cover. Background Art

[0002] Chinese Patent CN210867362U discloses a fully sealed linear motor module. A dust-proof cover is provided above the loading table. The dust-proof cover is located above the flexible steel belt. There will be gaps when the flexible steel belt passes through above the loading table. The dust-proof cover can effectively prevent dust from falling, making the sealing and dust-proof effect better. The linear motor drives the loading table to slide. The flexible steel belt has its protective performance reduced due to repeated friction and stretching, and needs to be replaced and maintained regularly. However, the dust-proof cover in the prior art adopts an integral structure design and is integrally covered on the loading table. Therefore, when the flexible steel belt needs to be replaced, the load fixed on the loading table needs to be removed first, and then the dust-proof cover can be removed, resulting in difficult operation for replacing the flexible steel belt. Summary of the Utility Model

[0003] The utility model aims to at least solve the technical problem in the prior art that the integral structure of the dust-proof cover makes it inconvenient to replace the flexible steel belt, and proposes a linear motor module with an easily detachable protective cover, so that the protective cover is easy to remove for the convenience of replacing the flexible steel belt.

[0004] The utility model proposes a linear motor module with an easily detachable protective cover, which includes a base, a linear motor built in the base, a loading table slidably arranged on the base and driven by the linear motor, a flexible steel belt passing through the loading table to enclose the casing, and a protective cover covering the loading table; the protective cover includes a first cover body and a second cover body that are detachably assembled and connected; the first cover body covers the first end of the loading table, the second cover body covers the second end of the loading table, and avoidance grooves are respectively arranged on two opposite sides of the second cover body, so that the workpiece mounting plates on two opposite sides of the loading table penetrate through the avoidance grooves; a sealing and assembling structure is arranged between the splicing ends of the first cover body and the second cover body to achieve sealing butt joint.

[0005] In some preferred embodiments, the avoidance groove extends to the splicing end of the second cover body, and the length of the avoidance groove is greater than the length of the workpiece mounting plate.

[0006] In some preferred embodiments, a sealing strip is extendedly provided at the splicing end of the first cover body, and the sealing strip is embedded into the end of the avoidance groove to seal the part of the avoidance groove that is longer than the workpiece mounting plate.

[0007] In some preferred embodiments, at least one vertical side of the first cover body is misaligned and spliced and connected with the corresponding vertical side of the second cover body.

[0008] In some preferred embodiments, a first stop plate extends from one of the vertical sides of the first cover body, and a first stop groove is provided at the upper end of the first stop plate; a second stop plate is provided on the corresponding vertical side of the second cover body, and a second stop groove which is arranged in a dislocation manner with respect to the first stop groove is provided at the lower end of the second stop plate; the first stop plate extends into the second stop groove, and the second stop plate extends into the first stop groove.

[0009] In some preferred embodiments, the length of the first stop plate is less than the length of the second stop groove, and a wire routing hole is formed between the end of the first stop plate and the second stop groove.

[0010] In some preferred embodiments, pressing rollers are respectively provided at the bottoms of the first end and the second end of the loading table, and the positions of the pressing rollers are lower than the vertical sides of the first cover body and the second cover body.

[0011] In some preferred embodiments, the vertical side of the first cover body and the vertical side of the second cover body are respectively fixedly connected to the corresponding vertical sides of the loading table.

[0012] In some preferred embodiments, a cleaning brush which is detachably fixed is provided on the outer side surface of the first cover body or / and the second cover body.

[0013] In some preferred embodiments, the sealing and assembling structure is a stepped mating structure, an inclined surface mating structure or a mortise and tenon mating structure.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] The overall structure of the present utility model is simple. The protective cover structure of the linear motor module is mainly improved. The protective cover adopts a split assembling structure and is assembled by a first cover body and a second cover body. The first cover body and the second cover body are respectively covered and assembled on the loading table from the first end and the second end of the loading table, and a sealed abutment is realized through the sealing and assembling structure between the splicing ends of the first cover body and the splicing ends of the second cover body. Thus, when the flexible steel belt needs to be replaced, it is not necessary to remove the load from the loading table, and only the first cover body and the second cover body need to be respectively removed, so as to simplify the replacement operation of the flexible steel belt and facilitate the maintenance of the linear motor module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the linear motor module.

[0017] Figure 2 is an exploded structural schematic diagram of the linear motor module.

[0018] Figure 3 is one of the three-dimensional structural schematic diagrams when the protective cover is covered and fixed on the loading table.

[0019] Figure 4It is the second three-dimensional structure schematic diagram when the protective cover is fixed on the loading table.

[0020] Figure 5 It is the exploded structure schematic diagram of the protective cover.

[0021] Figure 6 It is the three-dimensional structure schematic diagram of the first cover body.

[0022] Figure 7 It is the structure schematic diagram of the first embodiment of the sealing and assembling structure.

[0023] Figure 8 It is the structure schematic diagram of the second embodiment of the sealing and assembling structure.

[0024] Figure 9 It is the structure schematic diagram of the third embodiment of the sealing and assembling structure. Detailed implementation manners

[0025] To further elaborate on the technical means and effects adopted by this application to achieve the predetermined purpose, the following combines the drawings and preferred embodiments to detail the specific implementation manners, structures, features, and their effects according to this application. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0026] Combined with Figures 1 - 2 As shown, the linear motor module includes a base 1 with a sliding groove 11 provided on the top surface, a linear motor 2 built in the base 1, a loading table 3 slidably disposed in the sliding groove 11, a flexible steel belt 4 passing through the loading table 3 to close the sliding groove 11, and a protective cover 5 covering the loading table 3.

[0027] Two opposite sides of the loading table 3 are respectively convexly provided with workpiece mounting plates 31, and the workpiece mounting plates 31 are exposed outside the protective cover 5, so that the load can be fixed on the loading table 3 through the workpiece mounting plates 31. During use, the load is fixed on the workpiece mounting plate 31 of the loading table 3 and is located above the protective cover 5, and the linear motor 2 drives the loading table 3 to move linearly as required in the sliding groove 11 with the load.

[0028] The present utility model mainly improves the structure of the protective cover 5, adopts a split assembly structure for the protective cover 5, so that the disassembly and assembly operation of the protective cover 5 relative to the loading table 3 can be unaffected by the load fixed on the loading table 3. Therefore, when the flexible steel belt 4 needs to be replaced, it is not necessary to remove the load from the loading table 3, simplifying the replacement operation of the flexible steel belt 4, and thus facilitating the maintenance of the linear motor module.

[0029] Further combined with Figures 2 - 6As shown, the protective cover 5 adopts a split and assembled structure, specifically including a first cover body 51 and a second cover body 52 that are split and assembled and connected. Among them, the first cover body 51 covers the first end of the material loading table 3, the second cover body 52 covers the second end of the material loading table 3, and avoidance grooves 521 are respectively provided on two opposite sides of the second cover body 52, so that the workpiece mounting plates 31 on two opposite sides of the material loading table 3 penetrate through the avoidance grooves 521, so that the workpiece mounting plates 31 are exposed outside the protective cover 5. And, a sealing and assembling structure is provided between the splicing end of the first cover body 51 and the splicing end of the second cover body 52 to achieve sealing abutment. The splicing end of the first cover body 51 and the splicing end of the second cover body 52 are in sealing abutment and spliced to seal the gap existing at the joint of the material loading table 3 and the flexible steel belt 4, so as to improve the overall sealing performance of the linear motor module.

[0030] And, the vertical side edges of the first cover body 51 and the vertical side edges of the second cover body 52 are respectively fixedly connected to the corresponding vertical side edges of the material loading table 3. For example, the two are fixed by a plurality of screws.

[0031] Especially see Figure 4 As shown, through grooves 38 for inserting the flexible steel belt 4 are respectively provided at the first end and the second end of the material loading table 3. Pressing rollers 37 and supporting rollers 36 are respectively provided on both sides of each through groove 38. The flexible steel belt 4 passes through the through groove 38 and covers the material loading table 3, so that the pressing rollers 37 press on the upper side of the flexible steel belt 4, while the supporting rollers 36 are located on the lower side of the flexible steel belt 4 to provide support.

[0032] During the use of the linear motor module, the linear motor 2 drives the material loading table 3 to move linearly as required with the load in the sliding groove 11. The flexible steel belt 4 is arranged above the sliding groove 11 to seal the sliding groove 11 through the flexible steel belt 4. The material loading table 3 makes rolling contact with the flexible steel belt 4 by using the pressing rollers 37 and the supporting rollers 36 respectively, reducing the friction with the flexible steel belt 4. This not only helps to improve the accuracy of the linear motor module driving the material loading table 3 to move linearly, but also can reduce the wear of the flexible steel belt 4.

[0033] In addition, the positions of the pressing rollers 37 are all lower than the vertical side edges of the first cover body 51 and the vertical side edges of the second cover body 52, ensuring that there is a preset height difference between the lower end of the protective cover 5 and the lower end of the pressing rollers 37, so that the material loading table 3 is less likely to rub against the protective cover 5 during the movement on the sliding groove 11, which is beneficial to improving the accuracy and reducing the wear of the flexible steel belt 4.

[0034] The load is fixed on the workpiece mounting plate 31 of the loading table 3. When it is necessary to replace the flexible steel belt 4, the screws used for fixed assembly between the vertical sides of the first cover 51 and the vertical sides of the second cover 52 and the vertical sides of the loading table 3 are removed one by one, and then the first cover 51 and the second cover 52 are respectively pulled outwards from the first end and the second end of the loading table 3. At this time, even if the fixed load on the loading table 3 is not removed, but after the protective cover 5 is removed, the through slots 38 provided at the first end and the second end of the loading table 3 are partially or completely exposed, and the flexible steel belt 4 can be replaced.

[0035] When replacing the flexible steel belt 4, first remove the two ends of the current flexible steel belt 4 from the base 1, and then pull out the flexible steel belt 4 from the through slot 38 of the loading table 3. Then, cover the new flexible steel belt 4 on the loading table 3. After the end of the flexible steel belt 4 passes through the lower part of the through slot 38, tighten the flexible steel belt 4 so that it fits against the two side edges of the sliding slot 11, and then fix it on the base 1 at both ends of the sliding slot 11 to complete the replacement operation.

[0036] In order to avoid interference between the avoidance slot 521 and the workpiece mounting plate 31 of the loading table 3 when disassembling and assembling the second cover 52, for this reason, the avoidance slot 521 of the second cover 52 extends to the splicing end of the second cover 52, so the length of the avoidance slot 521 will be greater than the length of the workpiece mounting plate 31.

[0037] An encapsulation strip 511 is provided at the splicing end of the first cover 51, and the encapsulation strip 511 is arranged corresponding to the avoidance slot 521 of the second cover 52. When the splicing end of the first cover 51 and the splicing end of the second cover 52 are butt-jointed and assembled, and the two are hermetically abutted and connected, the encapsulation strip 511 is embedded into the end of the avoidance slot 521 to seal the part of the avoidance slot 521 that is longer than the workpiece mounting plate 31.

[0038] Moreover, by using the assembly structure in which the encapsulation strip 511 is embedded into the avoidance slot 521, it is also possible to make the sealed assembly structure formed between the splicing end of the first cover 51 and the splicing end of the second cover 52 not easy to move, and the sealed assembly structure is more firm and reliable, which is beneficial to improving the overall protection performance of the protective cover.

[0039] In addition, in order to improve the overall structural reliability of the protective cover 5 formed by the butt-jointed assembly of the first cover 51 and the second cover 52, at least one of the vertical sides of the first cover 51 and the corresponding vertical side of the second cover 52 are spliced and connected in a staggered manner.

[0040] An embodiment of the misaligned splicing of the first cover 51 and the second cover 52 through the vertical side plate is as follows: One vertical side of the first cover 51 extends out a first stop plate 512, and a first stop groove 513 is provided at the upper end of the first stop plate 512; A second stop plate 522 is provided on the corresponding vertical side of the second cover 52, and a second stop groove 523 which is misaligned with the first stop groove 513 is provided at the lower end of the second stop plate 522; The first stop plate 512 extends into the second stop groove 523, and the second stop plate 522 extends into the first stop groove 513.

[0041] In a preferred embodiment, the length of the first stop plate 512 is less than the length of the second stop groove 523, so as to form a wire routing hole 524 between the end of the first stop plate 512 and the second stop groove 523. The wires of the linear motor 2 can be externally connected through the wire routing hole 524.

[0042] A cleaning brush, such as a wool felt brush, which is detachably fixed is provided on the outer side surface of the first cover 51 or / and the second cover 52, so as to facilitate removing the dust on the flexible steel belt 4 by using the cleaning brush during use.

[0043] Furthermore, there can be various specific implementation structures for the sealing and assembling structure between the splicing ends of the first cover 51 and the second cover 52. Combining Figures 5 - 7 with the illustrated embodiment, the sealing and assembling structure is a stepped matching structure, that is, a lower step 519 is provided at the splicing end of the first cover 51, and a corresponding upper step 529 is provided at the splicing end of the second cover 52. When the first cover 51 and the second cover 52 are assembled, the upper step 529 of the second cover 52 and the lower step 519 of the first cover 51 are coupled to form a sealing abutting structure.

[0044] Combining Figure 8 with the illustrated embodiment, the sealing and assembling structure adopts a stepped matching structure, that is, the sealing abutting is realized through the inclined surface matching between the splicing ends of the first cover 51 and the second cover 52.

[0045] Combining Figure 8 with the illustrated embodiment, the sealing and assembling structure adopts a mortise and tenon matching structure, that is, one of the splicing ends of the first cover 51 and the second cover 52 has a tenon structure, and the other corresponding one is provided with a mortise structure, and the two are inserted and matched for assembling to realize the sealing abutting.

[0046] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A linear motor module with an easily removable protective cover, comprising a base, a linear motor built into the base, a loading platform slidably arranged on the base and driven by the linear motor, a flexible steel belt passing through the loading platform to close the housing, and a protective cover arranged on the loading platform; characterized in that: The protective cover comprises a first cover body and a second cover body which are assembled and connected separately; The first cover body is disposed at the first end of the loading platform, the second cover body is disposed at the second end of the loading platform, and two opposite sides of the second cover body are respectively provided with avoidance grooves, so that the workpiece mounting plates on the two opposite sides of the loading platform pass through the avoidance grooves; A sealing assembly structure is provided between the splicing end of the first cover body and the splicing end of the second cover body to achieve sealing abutment.

2. The linear motor module according to claim 1, characterized in that: The avoidance groove extends to the splicing end of the second cover body, and the length of the avoidance groove is greater than the length of the workpiece mounting plate.

3. The linear motor module according to claim 2, characterized in that: A packaging strip is extended from the splicing end of the first cover body, and the packaging strip is embedded in the end of the avoidance groove to seal the portion of the avoidance groove that is longer than the workpiece mounting plate.

4. The linear motor module according to claim 1, characterized in that: At least one vertical side of the first cover body is connected to the corresponding vertical side of the second cover body by staggered splicing.

5. The linear motor module according to claim 1, characterized in that: A first stop plate extends from one of the vertical sides of the first cover body, and a first stop groove is provided at the upper end of the first stop plate; a second stop plate is provided at the corresponding vertical side of the second cover body, and a second stop groove is provided at the lower end thereof, which is offset from the first stop groove; the first stop plate extends into the second stop groove, and the second stop plate extends into the first stop groove.

6. The linear motor module according to claim 5, characterized in that: The length of the first stop plate is smaller than the length of the second stop groove, and a wiring hole is formed between the end of the first stop plate and the second stop groove.

7. The linear motor module according to claim 1, characterized in that: Lower pressing rollers are respectively arranged at the bottom of the first end and the second end of the loading platform, and the positions of the lower pressing rollers are lower than the vertical sides of the first cover body and the vertical sides of the second cover body.

8. The linear motor module according to claim 7, characterized in that: The vertical side edges of the first cover body and the vertical side edges of the second cover body are respectively fixedly connected to the corresponding vertical side edges of the loading platform.

9. The linear motor module according to claim 1, characterized in that: A detachable and fixed cleaning brush is provided on the outer side of the first cover body and / or the second cover body.

10. The linear motor module according to any one of claims 1 to 9, characterized in that: The sealed assembly structure is a step matching structure, a slope matching structure or a mortise and tenon matching structure.

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