Cross roller linear motor guide rail pair

Abstract

The utility model discloses a crossed roller linear motor guide rail pair, which relates to the technical field of linear motor guide rail pairs and comprises a guide rail body, channels are arranged on two sides of the guide rail body, a mounting groove is arranged on a sliding block slidably arranged on the guide rail body, and connecting grooves corresponding to the channels are arranged at the bottom of the inner side of a sliding frame mounted in the mounting groove. A limiting frame is fixedly arranged on the outer side of the sliding frame, a straight groove with a triangular section is formed in the bottom of the limiting frame, a movable frame is connected to the lower portion of the limiting frame, a movable groove with a triangular section is formed in the movable frame, a straight groove is formed in the middle of the movable groove and correspondingly matched with the straight groove, and bent grooves are formed in the two ends of the movable groove. The bent grooves in the two ends are correspondingly matched with the U-shaped groove, the U-shaped groove is formed in the bottom of the connecting piece, the two ends of the moving groove are communicated with the channel to form an annular roller groove, and the annular roller groove is ingeniously constructed, so that the structure of the whole sliding block is more compact, and occupation of external space is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to linear motor guide rail pair technical field, concretely is a kind of crossed roller linear motor guide rail pair. BACKGROUND

[0002] Crossed roller guide rail is the product that is composed of two guide rails with V-shaped raceway, roller cage cylindrical roller, etc., and the cylindrical roller that is arranged mutually crossing reciprocates on the V-shaped raceway surface that is precisely ground, can bear load in each direction, realizes high-precision, stable linear motion.

[0003] With the science and technology to higher and more sophisticated direction, such as semiconductor manufacturing, high-end optical instrument processing, aerospace parts precision assembly and other frontier fields flourish, the performance of linear guide rail is almost harsh new challenge.

[0004] To ensure that the roller has enough movement space and bearing capacity, the guide rail and the slider are often large in size in the existing common crossed roller linear motor guide rail pair.In the application scenarios such as micro-satellite monitoring system, portable precision medical detection equipment and other space resources are extremely valuable, the large size of ordinary crossed roller guide rail becomes the bottleneck restricting the miniaturization and light weight development of equipment, and cannot meet the increasing demand for equipment integration and portability. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a crossed roller linear motor guide rail pair, which solves the problem that the guide rail and the slider are often large in size to ensure that the roller has enough movement space and bearing capacity, and cannot meet the increasing demand for equipment integration and portability.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: a crossed roller linear motor guide rail pair, including guide rail body, the guide rail body is arranged with stator in array inside, the both sides of the guide rail body are provided with channel, the guide rail body is provided with slider that slides, the both sides of the slider are provided with mounting groove, the mounting groove is installed with sliding frame, the inner side bottom of the sliding frame is provided with connecting groove, the connecting groove corresponds with channel, the outer side of the sliding frame is fixedly provided with limiting frame, the bottom of the limiting frame is provided with straight groove with triangular cross section, the lower of the limiting frame is connected with moving frame, the moving frame is provided with moving groove with triangular cross section, the moving groove is divided into middle and two ends, the middle of the moving groove is straight groove corresponding with straight groove, the two ends of the moving groove are curved groove, the curved groove of two ends is corresponding with U-shaped groove, the U-shaped groove is provided in the bottom of connecting piece, the two ends of the moving groove are connected with channel to form annular roller groove.

[0007] Preferably, the two ends of the moving frame are provided with connecting columns at the top, and the bottom of the connecting piece is provided with a connecting hole corresponding to the connecting column.

[0008] Preferably, the connecting groove is square in cross section, and a groove is bonded in the connecting groove, and a sliding groove is formed in the inner side of the groove.

[0009] Preferably, the connecting groove is triangular in cross section, and an insertion groove is communicated on both sides of the inner side of the connecting groove, and a groove is bonded in the insertion groove, and the groove is a flat plate type and is adapted to the insertion groove.

[0010] Preferably, the connecting groove is triangular in cross section, and an insertion groove is communicated on both sides of the inner side of the connecting groove, and a groove is bonded in the insertion groove, and the groove is a flat plate type and is adapted to the insertion groove.

[0011] The utility model provides a cross roller linear motor guide rail pair. Has the following beneficial effects:

[0012] (1), the utility model discloses a mounting groove is set up in the sliding block, and the sliding frame is installed therein, and then the unique design of the limiting frame, the moving frame and the connecting piece and other components are matched, and the annular roller groove is ingeniously constructed, so that the structure of the whole sliding block is more compact, and the occupation of external space is reduced.

[0013] (2), the utility model discloses three different shapes of connecting grooves and grooves, and the square connecting groove provides regular and stable mounting space for the groove, so that the groove can be accurately installed in the connecting groove, and the good corresponding relationship between the inner sliding groove of the groove and the channel is ensured. The triangular connecting groove is more efficient in space utilization, and the insertion groove is arranged on both sides of the inner side of the connecting groove and the flat plate type groove is inserted, which further reduces the space occupation of the structure. When the connecting groove is triangular and the round bar type groove is pressed into the insertion groove, the center of the round bar type groove is arranged in the insertion groove, so that the groove does not need to be fastened by special glue.

[0014] Thus, the problem that the guide rail and the sliding block are often large in size to ensure sufficient movement space and bearing capacity of the roller, and cannot meet the increasing demand for equipment integration and portability is solved. ACCURATE DRAWINGS

[0015] Figure 1 It is the overall structure display drawing of the utility model;

[0016] Figure 2 It is the structure display drawing of the sliding block in the utility model; Figure 1

[0017] Figure 3 It is the structure display drawing of the sliding block in the utility model;​ Figure 2 Structure exhibition view of the middle sliding frame;

[0018] Figure 4 For the utility model Figure 2 Structure exhibition view of the middle sliding frame;

[0019] Figure 5 For the utility model Figure 4 Structure exhibition view of the bottom of the connecting piece;

[0020] Figure 6 For the utility model Figure 2 Structure exhibition view of the groove;

[0021] Figure 7 For the utility model Figure 2 Structure exhibition view of the second shape of the groove;

[0022] Figure 8 For the utility model Figure 2 Structure exhibition view of the second shape of the groove.

[0023] In the drawing, 1, guide rail body; 11, stator; 2, sliding block; 21, installation groove; 3, sliding frame; 31, connecting groove; 311, insertion slot; 32, limiting frame; 33, straight slot; 4, connecting piece; 41, U-shaped groove; 42, connecting hole; 5, moving frame; 51, moving groove; 52, connecting column; 6, groove; 61, sliding groove. Specific implementation

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Embodiment 1:

[0026] Please refer to Figures 1-6The utility model provides a cross roller linear motor guide rail pair, including guide rail body 1, the inside array of guide rail body 1 is embedded with stator 11, is set up with the channel in the both sides of guide rail body 1, the sliding block 2 of guide rail body 1 is set up on, the both sides of sliding block 2 are provided with mounting groove 21, is installed in mounting groove 21 and has sliding frame 3, the bottom of the inner side of sliding frame 3 is provided with connecting groove 31, and connecting groove 31 corresponds with the channel, the outside of sliding frame 3 is fixedly provided with the limiting frame 32, and the bottom of limiting frame 32 is provided with straight -line groove 33 of the section of triangle, and the lower of limiting frame 32 is connected with mobile frame 5, and the section of triangle is set up in the mobile groove 51 of mobile frame 5, and the mobile groove 51 is divided into middle and both ends, and the middle of mobile groove 51 is straight groove and straight -line groove 33 corresponding adaptation, and the both ends of mobile groove 51 are curved groove, and the curved groove of both ends all correspond with U type groove 41 adaptation, and U type groove 41 is set up in the bottom of connecting piece 4, and the both ends of mobile groove 51 all are connected with the channel and form annular roller groove,

[0027] The top of both ends of mobile frame 5 is fixedly provided with connecting column 52, and the bottom of connecting piece 4 is provided with connecting hole 42, and connecting hole 42 corresponds with connecting column 52 adaptation;

[0028] The section of connecting groove 31 is square, and connecting groove 31 is bonded with groove 6, and the inner side of groove 6 is provided with sliding groove 61, and sliding groove 61 corresponds with the channel.

[0029] Specifically, groove 6 is pressed into connecting groove 31 with interference, and is fastened and bonded by using special glue, sliding frame 3 with groove 6 is installed in mounting groove 21, and is installed on guide rail body 1 together with sliding block 2, sliding groove 61 on groove 6 corresponds with the channel, the section of sliding groove 61 and the channel are all triangle, after sliding groove 61 and the channel corresponding combination, form the roller groove of the section of diamond, and are adapted with cross roller, cross roller is installed in the roller groove, in addition, connecting piece 4 is installed on both ends of mobile frame 5, so that the both ends of mobile groove 51 form the roller groove of U type, then cross roller is installed in the roller groove of U type and the middle section of mobile groove 51, then mobile frame 5 with cross roller is connected with sliding frame 3, so that the middle section of mobile groove 51 corresponds with straight -line groove 33 and is combined into the roller groove of the section of diamond, and is communicated with the diamond roller groove formed previously between guide rail body 1 and sliding block 2 and the U type roller groove of both ends of mobile groove 51, to constitute the complete annular roller groove;

[0030] The annular roller groove provides a closed circulation path for cross roller. During the working process of the linear motor guide rail pair, no matter the sliding block 2 moves forward or reversely, the cross roller can continuously roll in the annular path, so that the motion trajectory of the roller is relatively fixed and uniform, avoiding the situation that some part of the roller is frequently stressed while other parts are idle, thereby prolonging the service life of the roller and reducing the maintenance cost and replacement frequency of the guide rail pair.

[0031] By utilizing the annular roller groove of the internal circulation, the movement path of the roller is integrated inside the slider 2. There is no need to set up a complex external track or guide structure for the roller circulation, avoiding the external auxiliary structure occupying extra space. This makes the overall guide pair more compact, suitable for installation in equipment with limited space, and better able to meet the miniaturization requirements of instruments.

[0032] Example 2:

[0033] Please see Figures 1-7 Based on embodiment 1, the cross-section of the connecting groove 31 is triangular, and slots 311 are connected to both sides of the inner side of the connecting groove 31. A groove 6 is bonded inside the slot 311. The groove 6 is flat and adapted to the slot 311.

[0034] Specifically, based on embodiment 1, this method sets the cross-section of the connecting groove 31 into a triangle, and presses the mounting plate groove 6 into the slots 311 on both sides of the inner side of the connecting groove 31 by interference fit, and uses special glue for bonding, which further optimizes the space utilization, making the whole structure more compact, and the guide rail pair will not be too large due to the design of the connecting part.

[0035] Example 3:

[0036] Please see Figures 1-8 Based on embodiment 2, the cross-section of the connecting groove 31 is triangular, and slots 311 are connected to both inner sides of the connecting groove 31. A groove 6 is pressed into the inside of the slot 311. The groove 6 is a round rod, and the center of the groove 6 is set in the slot 311. The groove 6 is adapted to the slot 311.

[0037] Specifically, this method is based on Embodiment 2, but the groove 6 is set as a round bar. After the groove 6 is pressed into the slot 311 with an interference fit, the inner side of the groove 6 is ground into a flat surface that matches the connecting groove 31. Its center is set in the slot 311. The constraint of the center position restricts the rotation and displacement of the groove 6 in the slot 311. Because once the groove 6 is offset, its center position will deviate from the center of the slot 311, and thus be restricted by the inner wall of the slot 311. This enhances the stability of the round bar groove 6 in the slot 311, so that it can maintain its correct installation position even without glue bonding. Compared with Embodiments 1 and 2, the connection method of Embodiment 3 has a higher priority.

[0038] Working principle: when the device is in use, the groove 6 is pressed into the connecting groove 31 (the connecting groove 31 is square in section) with interference, and is fastened and bonded with special glue, after the glue is cured, the sliding frame 3 with the groove 6 is installed into the installation groove 21 of the sliding block 2, and the sliding block 2 is installed on the guide rail body 1, ensuring that the sliding groove 61 on the groove 6 corresponds to the channel of the guide rail body 1. At this time, since the cross section of the sliding groove 61 and the channel is triangular, they form a diamond-shaped roller groove after corresponding combination, the connecting piece 4 is installed at both ends of the moving frame 5. The two ends of the moving groove 51 form a U-shaped roller groove, and the cross roller is installed in the U-shaped roller groove and the middle section of the moving groove 51. Then connect the moving frame 5 with the cross roller with the sliding frame 3, so that the middle section of the moving groove 51 corresponds to the straight groove 33 to form a diamond-shaped roller groove. The newly formed diamond-shaped roller groove communicates with the diamond-shaped roller groove formed between the guide rail body 1 and the sliding block 2 and the U-shaped roller groove at both ends of the moving groove 51, forming a complete annular roller groove, thus completing the assembly of the sliding block 2, realizing the circulation of the cross roller in the annular roller groove.

[0039] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A cross roller linear motor guide rail pair, comprising a guide rail body (1), wherein a stator (11) is embedded in an array inside the guide rail body (1), characterized in that: The guide rail body (1) has grooves on both sides. A slider (2) is slidably mounted on the guide rail body (1). The slider (2) has mounting grooves (21) on both sides. A sliding frame (3) is mounted in the mounting grooves (21). A connecting groove (31) is provided on the bottom inner side of the sliding frame (3). The connecting groove (31) corresponds to the groove. A limit frame (32) is fixedly mounted on the outer side of the sliding frame (3). A straight groove (33) with a triangular cross section is provided at the bottom of the limit frame (32). A movable frame (5) is connected below the mounting frame (32). The movable frame (5) has a movable groove (51) with a triangular cross section. The movable groove (51) is divided into a middle section and two ends. The middle section of the movable groove (51) is a straight groove that corresponds to and matches the straight groove (33). The two ends of the movable groove (51) are curved grooves. The curved grooves at both ends correspond to and match the U-shaped groove (41). The U-shaped groove (41) is opened at the bottom of the connector (4). The two ends of the movable groove (51) are connected to the channel to form an annular roller groove.

2. The cross roller linear motor guide pair according to claim 1, characterized in that: The top of both ends of the movable frame (5) is fixedly provided with connecting posts (52), and the bottom of the connector (4) is provided with connecting holes (42), which are corresponding and adapted to the connecting posts (52).

3. The cross roller linear motor guide pair according to claim 1, characterized in that: The cross-section of the connecting groove (31) is square. A groove (6) is bonded in the connecting groove (31). A sliding groove (61) is provided on the inner side of the groove (6). The sliding groove (61) corresponds to the channel.

4. The cross roller linear motor guide pair according to claim 1, characterized in that: The cross-section of the connecting groove (31) is triangular. The two inner sides of the connecting groove (31) are connected to slots (311). The slots (311) have grooves (6) bonded inside. The grooves (6) are flat and adapted to the slots (311).

5. The cross roller linear motor guide pair according to claim 1, characterized in that: The cross-section of the connecting groove (31) is triangular. Both sides of the inner side of the connecting groove (31) are connected to slots (311). A groove (6) is pressed into the inside of the slot (311). The groove (6) is a round rod. The center of the groove (6) is set in the slot (311). The groove (6) is adapted to the slot (311).

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