A precise positioning device for guide rail machining

Abstract

The application relates to the guide rail technical field and discloses a guide rail machining precision positioning device, which comprises a U-shaped table and two moving rods symmetrically arranged below the U-shaped table, a movable hole is formed in the upper side of the U-shaped table, the upper ends of the two moving rods are fixedly installed with vertical rods respectively, the outer walls of the two vertical rods are slidably connected with the inner walls of the U-shaped table on the inner sides of the movable holes respectively, the upper ends of the two vertical rods are fixedly installed with side plates respectively, the U-shaped clamping plate can stably clamp and position the long face of the guide rail under the cooperation of a longitudinal moving mechanism, a transverse moving mechanism drives the moving rods, the vertical rods and the side plates to reciprocatingly move, the limiting blocks on the side plates can penetrate into arc grooves of the long face of the guide rail to further position, during drilling, the long side continuously fixes the whole guide rail, the short side intermittently relaxes, machining internal stress caused by drilling heat can be released, stress accumulation caused deformation can be avoided, meanwhile, the limiting blocks are precisely matched with the arc grooves, the relative positions of the short side and the long side of the guide rail in theory are guaranteed by geometric constraint, and the positioning precision is improved.

Description

Technical Field

[0001] This application relates to the field of guide rail technology, specifically a precision positioning device for guide rail processing. Background Technology

[0002] Precision positioning devices for guide rail machining are core equipment in the field of mechanical processing to ensure high-precision manufacturing of guide rails. Through the combination of precision mechanical structure and advanced control technology, they achieve precise positioning of guide rails during the machining process, thereby ensuring key performance characteristics such as guiding accuracy, wear resistance, rigidity, and low-speed motion stability of the guide rails.

[0003] The guide rail usually needs to have mounting holes inside to facilitate the installation of the guide rail using hex bolts. The mounting holes of the guide rail are usually drilled using drilling equipment, and a positioning mechanism is required to position the guide rail during drilling.

[0004] Currently, during the positioning process of guide rails, countermoving clamps are generally used to position the guide rails. These countermoving clamps can accommodate guide rails of different thicknesses. However, during the drilling process, when the clamps hold the guide rails, the guide rails may experience slight lateral displacement due to the vibration of the drilling equipment. Furthermore, the guide rails will generate heat through friction during drilling, and the heat from drilling can be conducted. Traditional long clamps can shape the guide rails to prevent them from bending, but the two ends of the guide rails may experience slight deformation due to the heat conduction during drilling. Utility Model Content

[0005] The purpose of this application is to provide a precise positioning device for guide rail machining, which solves the problem mentioned in the background art. In the positioning process of guide rails, the opposite moving clamps are generally used to position the guide rails. The opposite moving clamps can adapt to guide rails of different thicknesses. However, during the drilling process, when the clamps hold the guide rails, the guide rails may experience slight lateral displacement due to the vibration of the drilling equipment. In addition, the guide rails will generate heat due to friction during drilling. Traditional long clamps can shape the guide rails to prevent bending, but the two ends of the guide rails may experience slight deformation due to the heat conduction during drilling.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This application provides a precision positioning device for guide rail processing, including a U-shaped platform and two symmetrically arranged movable rods below it. The upper side of the U-shaped platform has a movable hole. Vertical rods are fixedly installed at the upper ends of the two movable rods, and the outer walls of the two vertical rods are slidably connected to the inner wall of the U-shaped platform inside the movable hole. Side plates are fixedly installed at the upper ends of the two vertical rods, and two limiting blocks are welded to the opposite sides of the two side plates. Two symmetrically arranged U-shaped clamping plates are slidably connected to the outer wall of the U-shaped platform. Longitudinal moving mechanisms for longitudinally moving the two U-shaped clamping plates are provided on both sides of the U-shaped platform, and a lateral moving mechanism for laterally moving the two movable rods is provided below the U-shaped platform.

[0007] By adopting the above technical solution, the U-shaped clamp can stably clamp and position the long surface of the guide rail with the cooperation of the longitudinal moving mechanism. The transverse moving mechanism drives the moving rod, vertical rod and side plate to move back and forth. The limiting block on the side plate can enter the arc groove of the long surface of the guide rail for further positioning. During drilling, the long side continuously fixes the entire guide rail, while the short side is intermittently relaxed, which can release the internal stress caused by drilling heat and avoid stress accumulation leading to deformation. At the same time, the limiting block and the arc groove are precisely matched to ensure the theoretical relative position of the short side and the long side of the guide rail with geometric constraints, thereby improving the positioning accuracy.

[0008] Optionally, the longitudinal moving mechanism includes two sets of second bearing seats and second bases respectively fixedly installed on the outer walls of both sides of the U-shaped platform. The same second bidirectional lead screw is rotatably installed on the inner wall of the two sets of second bearing seats. The second bidirectional lead screw is spirally connected to two U-shaped clamps. A second reciprocating motor is fixedly installed on the outer wall of the U-shaped platform. The output shaft of the second reciprocating motor is fixedly installed to the second bidirectional lead screw through a second coupling.

[0009] By adopting the above technical solution, the U-shaped platform can fix the second base and the second bearing seat, while the second bearing seat can provide rotational support for the second bidirectional lead screw. When the second reciprocating motor drives the second bidirectional lead screw to rotate with the cooperation of the second coupling, it can move the two U-shaped clamps in opposite directions.

[0010] Optionally, the same second guide rod is fixedly installed on the inner wall of the two second bases, and the second guide rod slides through the two U-shaped clamps.

[0011] By adopting the above technical solution, the second base can fix the second guide rod, and the second guide rod can guide the movement of the U-shaped clamp.

[0012] Optionally, the lateral moving mechanism includes two mounting plates that are fixedly installed on the lower ends of both sides of the U-shaped platform. The outer walls of both sides of the U-shaped platform are respectively provided with mounting holes. The upper ends of the mounting plates located inside each mounting hole are respectively fixedly installed with a first base and a first bearing seat. The inner walls of the two first bases are fixedly installed with the same first guide rod. The two first guide rods slide through the two moving rods.

[0013] By adopting the above technical solution, the U-shaped platform can fix the mounting plate, and the mounting plate can facilitate the workers to install the U-shaped platform under the drilling equipment. The base plate can fix the first base and the first bearing seat, the first base can fix the first guide rod, and the first guide rod can guide the movement of the moving rod.

[0014] Optionally, the same first bidirectional lead screw is rotatably mounted on the inner wall of the two first bearing seats. The first bidirectional lead screw is helically connected to two moving rods. A first reciprocating motor is fixedly mounted on the upper end of one of the mounting plates. The output shaft of the first reciprocating motor is fixedly mounted to the first bidirectional lead screw through a first coupling.

[0015] By adopting the above technical solution, the first bearing housing can provide rotational support for the first bidirectional lead screw, and the first reciprocating motor can drive the first bidirectional lead screw to rotate in conjunction with the first coupling, thereby moving the moving rod in the opposite direction.

[0016] Optionally, a controller is fixedly installed on the upper end of the U-shaped platform, and the controller is electrically connected to the first reciprocating motor and the second reciprocating motor.

[0017] By adopting the above technical solution, the U-shaped platform can fix the controller, and the controller can be set up to facilitate the operation of the first reciprocating motor and the second reciprocating motor by the staff. The controller is generally equipped with a PLC core board, which can facilitate the staff to set the operation process of the first reciprocating motor and the second reciprocating motor.

[0018] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows: The technical solution of this application uses a U-shaped clamping plate in conjunction with a longitudinal moving mechanism to stably clamp and position the long surface of the guide rail. The lateral moving mechanism drives the moving rod, vertical rod and side plate to move back and forth. The limiting block on the side plate can enter the arc groove of the long surface of the guide rail for further positioning. During drilling, the long side continuously fixes the entire guide rail, while the short side is intermittently relaxed, which can release the internal stress caused by drilling heat and avoid stress accumulation leading to deformation. At the same time, the limiting block and the arc groove are precisely matched to ensure the theoretical relative position of the short side and the long side of the guide rail with geometric constraints, thereby improving the positioning accuracy. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is an axial view schematic diagram of a precision positioning device for guide rail processing according to this application; Figure 2 This is a right-side schematic diagram of a precision positioning device for guide rail processing according to this application; Figure 3 This is a bottom view schematic diagram of a precision positioning device for guide rail processing according to this application; Figure 4 This is a schematic axial view of the limiting block of a precision positioning device for guide rail processing according to this application.

[0020] In the diagram: 1. U-shaped platform; 2. Moving rod; 3. Movable hole; 4. U-shaped clamp; 5. Vertical rod; 6. Side plate; 7. Limiting block; 8. Lateral movement mechanism; 801. Mounting hole; 802. First bearing seat; 803. First base; 804. First double-acting lead screw; 805. First guide rod; 806. Mounting plate; 807. First coupling; 808. First reciprocating motor; 9. Longitudinal movement mechanism; 901. Second base; 902. Second guide rod; 903. Second bearing seat; 904. Second double-acting lead screw; 905. Second coupling; 906. Second reciprocating motor; 10. Controller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This application provides a technical solution: a guide rail processing precision positioning device, including a U-shaped platform 1 and two movable rods 2 symmetrically arranged below it. The upper side of the U-shaped platform 1 is provided with a movable hole 3. The upper ends of the two movable rods 2 are respectively fixedly installed with vertical rods 5. The outer walls of the two vertical rods 5 are respectively slidably connected to the inner wall of the U-shaped platform 1 inside the movable hole 3. The upper ends of the two vertical rods 5 are respectively fixedly installed with side plates 6. Two limiting blocks 7 are respectively welded to the opposite side of the two side plates 6. The outer wall of the U-shaped platform 1 is slidably connected with two symmetrically arranged U-shaped clamping plates 4. The two sides of the U-shaped platform 1 are provided with a longitudinal moving mechanism 9 for the longitudinal movement of the two U-shaped clamping plates 4 towards each other. The lower part of the U-shaped platform 1 is provided with a transverse moving mechanism 8 for the transverse movement of the two movable rods 2 towards each other. In the technical solution of this application, the U-shaped clamping plate 4, in cooperation with the longitudinal moving mechanism 9, can stably clamp and position the long surface of the guide rail. The transverse moving mechanism 8 drives the moving rod 2, the vertical rod 5 and the side plate 6 to move back and forth. The limiting block 7 on the side plate 6 can be inserted into the arc groove of the long surface of the guide rail for further positioning. During drilling, the long side continuously fixes the entire guide rail, while the short side is intermittently relaxed, which can release the internal stress caused by drilling heat and avoid stress accumulation leading to deformation. At the same time, the limiting block 7 and the arc groove are precisely matched to ensure the theoretical relative position of the short side and the long side of the guide rail with geometric constraints, thereby improving the positioning accuracy.

[0023] In the technical solution of this application, such as Figures 1-4 As shown, the lateral moving mechanism 8 includes two mounting plates 806 fixedly installed on the lower ends of both sides of the U-shaped platform 1. Mounting holes 801 are respectively opened on the outer walls of both sides of the U-shaped platform 1. A first base 803 and a first bearing seat 802 are fixedly installed on the upper end of the mounting plate 806 inside each mounting hole 801. The same first guide rod 805 is fixedly installed on the inner walls of the two first bases 803. The two first guide rods 805 slide through the two moving rods 2. The U-shaped platform 1 can fix the mounting plates 806. The mounting plates 806 facilitate the installation of the U-shaped platform 1 under the drilling equipment, and the base plate can fix the first bases 803 and the first bearing seats 802. 3 can fix the first guide rod 805, and the first guide rod 805 can guide the movement of the moving rod 2. The same first bidirectional lead screw 804 is rotatably installed on the inner wall of the two first bearing seats 802. The first bidirectional lead screw 804 is screwed to the two moving rods 2. The upper end of one of the mounting plates 806 is fixedly installed with a first reciprocating motor 808. The output shaft of the first reciprocating motor 808 is fixedly installed with the first bidirectional lead screw 804 through the first coupling 807. The first bearing seat 802 can provide rotational support for the first bidirectional lead screw 804. When the first reciprocating motor 808 drives the first bidirectional lead screw 804 to rotate with the cooperation of the first coupling 807, it can move the moving rod 2 in the opposite direction.

[0024] In the technical solution of this application, such as Figure 1 and Figure 2As shown, the longitudinal moving mechanism 9 includes two sets of second bearing seats 903 and second bases 901, respectively fixedly installed on the outer walls of both sides of the U-shaped platform 1. The same second bidirectional lead screw 904 is rotatably mounted on the inner walls of the two sets of second bearing seats 903. The second bidirectional lead screw 904 is helically connected to two U-shaped clamps 4. A second reciprocating motor 906 is fixedly installed on the outer wall of the U-shaped platform 1. The output shaft of the second reciprocating motor 906 is fixedly installed to the second bidirectional lead screw 904 via a second coupling 905. The U-shaped platform 1 can fix the second bases 901 and the second bearing seats 903. The second bearing housing 903 provides rotational support for the second bidirectional lead screw 904. When the second reciprocating motor 906, in cooperation with the second coupling 905, drives the second bidirectional lead screw 904 to rotate, it can move the two U-shaped clamps 4 in opposite directions. The inner walls of the two second bases 901 are fixedly installed with the same second guide rod 902. The second guide rod 902 slides through the two U-shaped clamps 4. The second bases 901 can fix the second guide rod 902, and the second guide rod 902 can guide the movement of the U-shaped clamps 4.

[0025] In the technical solution of this application, such as Figures 1-3 As shown, a controller 10 is fixedly installed on the upper end of the U-shaped platform 1. The controller 10 is electrically connected to the first reciprocating motor 808 and the second reciprocating motor 906. The U-shaped platform 1 can fix the controller 10. The controller 10 can facilitate the operation of the first reciprocating motor 808 and the second reciprocating motor 906 by the staff. The controller 10 is generally equipped with a PLC core board, which can facilitate the staff to set the operation process of the first reciprocating motor 808 and the second reciprocating motor 906.

[0026] In operation, the operator first starts the second reciprocating motor 906 via controller 10. The second reciprocating motor 906 drives the second double-acting lead screw 904 to rotate on the second bearing seat 903 via the second coupling 905. Due to the guiding effect of the second guide rod 902 on the two U-shaped clamps 4, the two U-shaped clamps 4 move longitudinally towards each other on the outer wall of the U-shaped platform 1, stably clamping and positioning the long surface of the guide rail. Then, the first reciprocating motor 808 is started. The first reciprocating motor 808 drives the first double-acting lead screw 804 to rotate on the first bearing seat 802 via the first coupling 807, and rotates on the first guide... Guided by rod 805, the two moving rods 2 move laterally towards each other, driving the vertical rod 5, side plate 6 and limiting block 7 to move, so that the limiting block 7 enters the long arc groove of the guide rail for further positioning. During drilling, the long side continuously fixes the entire guide rail, while the short side intermittently relaxes to release the internal stress of processing, avoids deformation, and ensures positioning accuracy. Moreover, the width of the movable hole 3 is set to be smaller than the minimum thickness of the guide rail, but larger than the diameter of the mounting hole 801 drilled on the guide rail, which facilitates the support of the guide rail and facilitates drilling by drilling equipment. The side plate 6 is installed on the upper end of the vertical rod 5 and can be detached to accommodate guide rails that are not thick enough.

Claims

1. A precision positioning device for guide rail processing, characterized in that: The device includes a U-shaped platform (1) and two movable rods (2) symmetrically arranged below it. The upper side of the U-shaped platform (1) is provided with a movable hole (3). The upper ends of the two movable rods (2) are respectively fixedly installed with vertical rods (5). The outer walls of the two vertical rods (5) are respectively slidably connected to the inner wall of the U-shaped platform (1) inside the movable hole (3). The upper ends of the two vertical rods (5) are respectively fixedly installed with side plates (6). Two limiting blocks (7) are respectively welded to the opposite side of the two side plates (6). The outer wall of the U-shaped platform (1) is slidably connected with two U-shaped clamps (4). The two sides of the U-shaped platform (1) are provided with a longitudinal moving mechanism (9) for the two U-shaped clamps (4) to move longitudinally towards each other. The lower part of the U-shaped platform (1) is provided with a transverse moving mechanism (8) for the two movable rods (2) to move laterally towards each other.

2. The precision positioning device for guide rail processing according to claim 1, characterized in that, The longitudinal moving mechanism (9) includes two sets of second bearing seats (903) and second bases (901) respectively fixedly installed on the outer walls of both sides of the U-shaped platform (1). The inner walls of the two sets of second bearing seats (903) are rotatably installed with the same second bidirectional lead screw (904). The second bidirectional lead screw (904) is spirally connected to two U-shaped clamps (4). The outer wall of the U-shaped platform (1) is fixedly installed with a second reciprocating motor (906). The output shaft of the second reciprocating motor (906) is fixedly installed with the second bidirectional lead screw (904) through a second coupling (905).

3. The precision positioning device for guide rail processing according to claim 2, characterized in that, The inner walls of the two second bases (901) are fixedly installed with the same second guide rod (902), and the second guide rod (902) slides through the two U-shaped clamps (4).

4. The precision positioning device for guide rail processing according to claim 3, characterized in that, The lateral moving mechanism (8) includes two mounting plates (806) that are fixedly installed on the lower ends of the two sides of the U-shaped platform (1). The outer walls of the two sides of the U-shaped platform (1) are respectively provided with mounting holes (801). The upper ends of the mounting plates (806) located inside each mounting hole (801) are respectively fixedly installed with a first base (803) and a first bearing seat (802). The inner walls of the two first bases (803) are fixedly installed with the same first guide rod (805). The two first guide rods (805) slide through the two moving rods (2).

5. The precision positioning device for guide rail processing according to claim 4, characterized in that, The same first bidirectional lead screw (804) is rotatably mounted on the inner wall of the two first bearing seats (802). The first bidirectional lead screw (804) is helically connected to two moving rods (2). A first reciprocating motor (808) is fixedly mounted on the upper end of one of the mounting plates (806). The output shaft of the first reciprocating motor (808) is fixedly mounted to the first bidirectional lead screw (804) through a first coupling (807).

6. The precision positioning device for guide rail processing according to claim 5, characterized in that, A controller (10) is fixedly installed on the upper end of the U-shaped platform (1), and the controller (10) is electrically connected to the first reciprocating motor (808) and the second reciprocating motor (906).

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