Long stroke heavy load module

Abstract

The application relates to the technical field of linear modules, in particular to a long-stroke heavy-load module which comprises a shell, a first sliding rail, a first sliding block, a mover, an internal transmission mechanism, a second sliding rail, a second sliding block and a connecting seat. The first sliding rail is fixed in the shell, the first sliding block is slidingly arranged on the first sliding rail, the mover is fixedly connected with the first sliding block and extends out of the top surface of the shell, the internal transmission mechanism is arranged on the shell and connected with the mover for driving the mover to reciprocatingly slide along the length direction of the first sliding rail, the second sliding rail is fixed to the outer side wall of the shell and is parallel to the first sliding rail, the second sliding block is slidingly arranged on the second sliding rail, the connecting seat is fixed to the second sliding block and fixedly connected with the mover. The application realizes that the module has long stroke and can stably bear heavy objects.

Description

Technical Field

[0001] This application relates to the technical field of linear modules, and more specifically, to a long-stroke heavy-duty module. Background Technology

[0002] Linear modules are core transmission components in modern automated equipment, widely used in precision manufacturing, semiconductor equipment, automated production lines, testing equipment, and logistics sorting systems. Their core function is to precisely and efficiently convert the rotary motion of servo motors or stepper motors into linear motion of the load. A typical linear module mainly consists of a housing, internal transmission mechanism, guiding mechanism, and mover. With the development of industrial automation, the demand for linear modules is increasingly showing a trend towards both "long stroke" and "heavy load." For example, applications such as machining platforms on large machine tools, long-distance conveyor lines in logistics warehousing, and large panel inspection equipment all require modules to stably bear loads of tens or even hundreds of kilograms over strokes of several meters or even tens of meters.

[0003] In long-stroke modules, the mover and its load are located far from the support points at both ends. When the load acts on the mover, especially in the middle of the stroke, a huge overturning moment is generated. This moment attempts to cause the mover to flip or twist around its support point. Traditional modules typically rely on a main slide rail / guide rail system at the bottom or inside the module housing to bear the load and provide guidance. A single slide rail is mainly designed to bear vertical loads and forces along the direction of motion, but its ability to resist lateral overturning moments is very limited. With long strokes, due to the cantilever effect, the overturning moment amplifies sharply with increasing stroke, limiting the module's load-bearing capacity. In related technologies, the load is usually shared by two or more modules working together, such as a gantry structure. This approach increases system complexity, control difficulty, installation and commissioning costs, and floor space. Utility Model Content

[0004] To address the problem that traditional modules, supported by a single internal slide rail, have limited load-bearing capacity due to the cantilever effect when set to a longer length, this application provides a long-stroke heavy-duty module.

[0005] A long-stroke heavy-duty module includes a housing, a first slide rail, a first slider, a mover, an internal transmission mechanism, a second slide rail, a second slider, and a connecting seat. The first slide rail is fixed inside the housing, the first slider is slidably disposed on the first slide rail, the mover is connected and fixed to the first slider and extends out of the top surface of the housing, the internal transmission mechanism is disposed on the housing and connected to the mover for driving the mover to reciprocate along the length direction of the first slide rail, the second slide rail is fixed to the outer wall of the housing and is parallel to the first slide rail, the second slider is slidably disposed on the second slide rail, and the connecting seat is fixed to the second slider and is fixedly connected to the mover.

[0006] Preferably, a plurality of inductive switches are provided on the side of the housing away from the second slide rail, the plurality of inductive switches are arranged along the length direction of the second slide rail, and an inductive plate is provided on the mover, the inductive plate being moved by the mover to pass through the sensing position of each of the inductive switches.

[0007] Preferably, the internal transmission mechanism includes a driving pulley, a driven pulley, a transmission belt, and a servo motor. The driving pulley is rotatably disposed inside one end of the housing, and the driven pulley is rotatably disposed inside the other end of the housing. A transmission belt is fitted onto the driving pulley and the driven pulley. The servo motor is fixed to the housing and connected to the driving pulley to drive the driving pulley to rotate in both directions. The moving part is connected and fixed to the transmission belt.

[0008] Preferably, the outer casing includes a front cover, a rear cover, a middle rod, and a top cover. The middle rod is hollow. The front cover is fixed to one end of the middle rod and communicates with the interior of the middle rod. The rear cover is fixed to the other end of the middle rod and communicates with the interior of the middle rod. A slot is formed on the top surface of the middle rod, which communicates with the interior of the middle rod and extends along the length of the middle rod. The mover passes through the slot to the fixed surface of the middle rod, and the mover has a through slot. The top cover passes through the through slot, and its two ends are fixedly connected to the two ends of the middle rod, respectively. The driving pulley is rotatably disposed inside the front cover, and the driven pulley is rotatably disposed inside the rear cover. The servo motor is fixed to the front cover, and its drive shaft passes through the front cover and is connected to the driving pulley. The second slide rail is fixed to the outer wall of the middle rod.

[0009] Preferably, multiple mounting blocks are provided on the bottom of each of the opposite sides of the intermediate rod, each mounting block is provided with a mounting hole, and the multiple mounting blocks are evenly arranged along the length direction of the intermediate rod.

[0010] The beneficial technical effects of this application are as follows: By adding a second slide rail system parallel to the first internal slide rail on the side wall of the outer shell, and rigidly connecting its slider to the mover through a connecting seat, the huge overturning moment generated by the cantilever effect in the traditional single slide rail structure during long strokes is directly borne by the newly added side wall second slide rail system. The second slide rail and the first slide rail form spatially separated double support points, significantly increasing the anti-overturning lever arm. When the mover is at the midpoint of its stroke, the lateral load is transferred to the second slide rail through the connecting seat, effectively suppressing the yaw deformation of the mover, enabling the module to stably bear heavy objects even under ultra-long strokes. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a long-stroke heavy-load module from the first angle in this embodiment.

[0012] Figure 2 This is a schematic diagram of the connection structure between the first slide rail, the first slider, and the mover in this embodiment.

[0013] Figure 3 This is a schematic diagram of the internal transmission mechanism in this embodiment.

[0014] Figure 4 This is a structural schematic diagram of a long-stroke heavy-load module from a second angle in this embodiment.

[0015] Reference numerals: 1. Outer shell; 11. Front cover; 12. Rear cover; 13. Middle rod; 131. Slot; 132. Inductive switch; 133. Mounting block; 14. Top cover; 2. First slide rail; 3. First slider; 4. Moving element; 41. Through slot; 42. Clamp; 421. First clamping plate; 422. Second clamping plate; 43. Inductive element; 5. Internal transmission mechanism; 51. Driving pulley; 52. Driven pulley; 53. Transmission belt; 54. Servo motor; 541. Motor base; 6. Second slide rail; 7. Second slider; 8. Connecting seat. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] Reference Figure 1 and Figure 2A long-stroke heavy-duty module includes a housing 1, a first slide rail 2, a first slider 3, a mover 4, an internal transmission mechanism 5, a second slide rail 6, a second slider 7, and a connecting seat 8. The housing 1 includes a front cover 11, a rear cover 12, a middle rod 13, and a top cover 14. The middle rod 13 is hollow inside. The front cover 11 is fixed to one end of the middle rod 13 by bolts and communicates with the middle rod 13. The rear cover 12 is fixed to the other end of the middle rod 13 by bolts and communicates with the interior of the middle rod 13. A slot 131 extending along its length is opened on the top surface of the middle rod 13 and communicates with the interior of the middle rod 13. The first slide rail 2 is fixed to the bottom of the middle rod 13 and communicates with the middle rod. The middle rod 13 is parallel to the first slide rail 2. The first slider 3 is slidably mounted on the first slide rail 2. The mover 4 is fixed to the top of the first slider 3 by bolts and extends out of the top surface of the middle rod 13 through the slot 131. The mover 4 has a through slot 41. The top cover 14 passes through the through slot 41 and is fixed to the two ends of the middle rod 13 by bolts. The top cover 14 is used to reduce dust from entering the middle rod 13. The second slide rail 6 is on the outer wall of the middle rod 13 and is parallel to the first slide rail 2. The second slider 7 is slidably mounted on the second slide rail 6. The connecting seat 8 is fixed to the second slider 7 by bolts. The connecting seat 8 is welded to the mover 4 and supports the side of the mover 4 through the second slide rail 6.

[0018] Reference Figure 1 and Figure 3 The internal transmission mechanism 5 includes a drive pulley 51, a driven pulley 52, a transmission belt 53, and a servo motor 54. The drive pulley 51 is rotatably disposed inside the front end cover 11, and the driven pulley 52 is rotatably disposed inside the rear end cover 12. The transmission belt 53 is sleeved on the drive pulley 51 and the driven pulley 52. ​​The servo motor 54 has a motor base 541 at its end, which is fixed to the front end cover 11. The drive shaft of the servo motor 54 passes through the front end cover 11 and is connected to the drive pulley 51 to drive the drive pulley. The drive pulley 51 rotates in both directions. A clamp 42 is mounted on the mover 4, holding and fixing the transmission belt 53. The clamp 42 includes a first clamping plate 421 and a second clamping plate 422. Both the first clamping plate 421 and the second clamping plate 422 are equipped with racks, and the racks of the first clamping plate 421 and the second clamping plate 422 engage, clamping the transmission belt 53 between the first clamping plate 421 and the second clamping plate 422. The racks of the first clamping plate 421 and the second clamping plate 422 grip the transmission belt 53, ensuring a stable connection between the transmission belt 53 and the mover 4. The servo motor 54 drives the drive pulley 51 to rotate in both directions, thereby driving the transmission belt 53 to move in both directions. The forward and reverse rotation of the transmission belt 53 causes the mover 4 to reciprocate along the length of the first slide rail 2 and the second slide rail 6.

[0019] Reference Figure 4Multiple induction switches 132 are provided on the side of the middle rod 13 away from the second slide rail 6. The multiple induction switches 132 are arranged along the length of the second slide rail 6. A sensing plate 43 is provided on the mover 4. The sensing plate 43 passes through the sensing position of each induction switch 132 as the mover 4 moves. The induction switch 132 senses the passing of the sensing plate 43. The induction switch 132 cooperates with the external control system to control the operation of the servo motor 54 to control the movement stroke of the mover 4.

[0020] Reference Figure 1 and Figure 4 Multiple mounting blocks 133 are provided on the bottom of both sides of the middle rod 13. The multiple mounting blocks 133 are evenly arranged along the length of the middle rod 13, and each mounting block 133 is provided with a mounting hole. The mounting blocks 133 facilitate the installation of the module as a whole. The mounting holes are used for external locking parts such as bolts to pass through.

[0021] The implementation principle of the long-stroke heavy-load module of this application is as follows: The servo motor 54 provides precise and controllable rotational power, drives the active pulley 51 to rotate, and drives the driven pulley 52 through the transmission belt 53. The mover 4 rigidly clamps the transmission belt 53 through the clamp 42 on it. The forward and reverse linear motion of the belt is directly converted into the reciprocating linear motion of the mover 4. The mover 4 is fixed to the first slider 3 by bolts. The first slider 3 slides along the first slide rail 2 fixed to the bottom of the intermediate rod 13, bearing the main vertical load and motion guidance. The mover 4 is fixed to the first slider 3 by bolts. The first slider 3 slides along the first slide rail 2 fixed to the bottom of the intermediate rod 13, bearing the main vertical load and motion guidance. This application adds a second slide rail 6 system parallel to the internal first slide rail 2 to the side wall of the outer shell 1, and makes its slider rigidly connected to the mover 4 through the connecting seat 8. The huge overturning moment generated by the cantilever effect in the traditional single slide rail structure during long stroke is directly borne by the newly added side wall second slide rail 6 system. The second slide rail 6 and the first slide rail 2 form a spatially separated double support point, which greatly increases the anti-overturning lever arm. When the mover 4 is at the midpoint of its stroke, the lateral load is transmitted to the second slide rail 6 through the connecting seat 8, which effectively suppresses the sway deformation of the mover 4, so that the module can still stably bear heavy objects under ultra-long stroke.

[0022] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long-stroke, heavy-duty module, characterized in that: The assembly includes a housing (1), a first slide rail (2), a first slider (3), a mover (4), an internal transmission mechanism (5), a second slide rail (6), a second slider (7), and a connecting seat (8). The first slide rail (2) is fixed inside the housing (1). The first slider (3) is slidably disposed on the first slide rail (2). The mover (4) is connected and fixed to the first slider (3) and extends out of the top surface of the housing (1). The internal transmission mechanism (5) is disposed on the housing (1) and connected to the mover (4) to drive the mover (4) to slide back and forth along the length direction of the first slide rail (2). The second slide rail (6) is fixed to the outer wall of the housing (1) and is parallel to the first slide rail (2). The second slider (7) is slidably disposed on the second slide rail (6). The connecting seat (8) is fixed to the second slider (7) and is fixedly connected to the mover (4).

2. The long-stroke heavy-duty module according to claim 1, characterized in that: The outer casing (1) is provided with a plurality of induction switches (132) on the side away from the second slide rail (6). The plurality of induction switches (132) are arranged along the length direction of the second slide rail (6), and the mover (4) is provided with an induction plate (43). The induction plate (43) moves through the mover (4) and passes through the sensing position of each induction switch (132).

3. The long-stroke heavy-duty module according to claim 1, characterized in that: The internal transmission mechanism (5) includes a drive pulley (51), a driven pulley (52), a transmission belt (53), and a servo motor (54). The drive pulley (51) is rotatably disposed inside one end of the outer casing (1), and the driven pulley (52) is rotatably disposed inside the other end of the outer casing (1). The drive pulley (51) and the driven pulley (52) are fitted with a transmission belt (53). The servo motor (54) is fixed on the outer casing (1) and connected to the drive pulley (51) to drive the drive pulley (51) to rotate in both directions. The mover (4) is connected and fixed to the transmission belt (53).

4. A long-stroke heavy-duty module according to claim 3, characterized in that: The outer casing (1) includes a front cover (11), a rear cover (12), a middle rod (13), and a top cover (14). The middle rod (13) is hollow. The front cover (11) is fixed to one end of the middle rod (13) and communicates with the interior of the middle rod (13). The rear cover (12) is fixed to the other end of the middle rod (13) and communicates with the interior of the middle rod (13). A slot (131) is provided on the top surface of the middle rod (13). The slot (131) communicates with the interior of the middle rod (13) and extends along the length of the middle rod (13). The moving part (4) passes through the slot (131). The intermediate rod (13) is fixed, and the mover (4) is provided with a through groove (41). The top cover (14) is inserted into the through groove (41) and the two ends of the top cover (14) are respectively fixedly connected to the two ends of the intermediate rod (13). The driving pulley (51) is rotatably disposed inside the front end cover (11). The driven pulley (52) is rotatably disposed inside the rear end cover (12). The servo motor (54) is fixed on the front end cover (11) and its drive shaft passes through the front end cover (11) and is connected to the driving pulley (51). The second slide rail (6) is fixed to the outer wall of the intermediate rod (13).

5. A long-stroke heavy-duty module according to claim 4, characterized in that: Multiple mounting blocks (133) are provided on the bottom of both sides of the intermediate rod (13). Each mounting block (133) is provided with a mounting hole, and the multiple mounting blocks (133) are evenly arranged along the length direction of the intermediate rod (13).

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