Multifunctional testing machine for rolling linear guide rail pair

Abstract

The utility model discloses a multifunctional testing machine for a rolling linear guide rail pair, which comprises a rack, a T-shaped connecting mechanism is arranged on the rack through a left bearing seat and a right bearing seat, a platform used for clamping the guide rail pair is arranged on the T-shaped connecting mechanism, an auxiliary guide rail is arranged on the platform, and the auxiliary guide rail is connected with the T-shaped connecting mechanism. The auxiliary guide rail is provided with a loading frame through an auxiliary sliding block, the loading frame is slidably provided with a screw rod through a nut, the bottom of the screw rod is in contact with a T-shaped pressing plate, the T-shaped pressing plate is connected with a sliding block clamp through a weighing sensor, the design effectively guarantees the load applying position, the loading precision is high, and the stability is good; the device can be suitable for tests of rolling linear guide rail pairs of different specifications, is synchronously provided with a displacement sensor and a temperature sensor, does not need to dismount the test guide rail pair, can carry out temperature detection and motion precision detection, is high in test efficiency, is simple and convenient to operate, employs database management for test data, and is convenient to use and share data.

Description

Technical Field

[0001] The utility model relates to a detection auxiliary device, in particular to a detection auxiliary device for the motion accuracy of a rolling linear guide pair. Background Art

[0002] A linear rolling guide pair generally consists of a guide rail, a slider, a deflector, rolling elements, and a retainer. It is a rolling bearing that performs relative reciprocating linear motion. It replaces direct sliding contact with the rolling of steel balls between the slider and the guide rail. The rolling elements, with the aid of a deflector, can achieve infinite circulation within the raceway and slider. Linear rolling guides offer advantages such as low friction, high operating precision, zero creep, wear resistance, high rigidity, and minimal thermal deformation. They are widely used as guide components in high-precision CNC machine tools and machining centers.

[0003] After the rolling linear guide pair is developed, it needs to undergo a heavy-load life test to ensure that the product meets the acceptance standards. At present, the rolling linear guide pair products are mainly tested on life testing machines. The gantry of this type of equipment is installed on two auxiliary guide pairs on the same plane as the test rolling linear guide pair. It withstands upward tension, has poor load capacity, and a short service life. The overall structure of the equipment is large and inconvenient to install. It is difficult to ensure that the mounting surfaces of each auxiliary guide pair and the test guide pair are parallel, which makes the test prone to overloading and other phenomena. In addition, this type of equipment has a single function and cannot detect the real-time temperature and operating accuracy of the rolling linear guide pair undergoing heavy-load life tests. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a multifunctional testing machine for rolling linear guides that is easy to install, simple in structure, has a strong load capacity, a long service life, and has multiple detection functions.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A multifunctional testing machine for rolling linear guide pairs comprises a frame, on which a T-shaped connecting mechanism is installed via left and right bearing seats, a platform for clamping the guide pair is provided on the T-shaped connecting mechanism, an auxiliary guide rail is installed on the platform, a loading frame is installed on the auxiliary guide rail via an auxiliary slider, a screw is slidably installed on the loading frame via a nut, the bottom of the screw is in contact with a T-shaped pressure plate, and the T-shaped pressure plate is connected to a slider clamp via a weighing sensor.

[0007] According to some embodiments of the present invention, the loading frame includes a frame bottom plate installed on the auxiliary slider, the frame bottom plate is connected to the frame top plate through four support rods, and the screw rod is installed in the nut on the frame top plate.

[0008] According to some embodiments of the present invention, a rack is provided on the platform, a servo motor is mounted on the loading frame via a motor mounting plate, and an output shaft of the servo motor is meshed with the rack via a gear.

[0009] According to some embodiments of the present invention, a synchronous belt is provided on the platform, the loading frame is clamped on the synchronous belt, and a servo drive motor is installed on the platform through a motor bracket, and the servo drive motor drives the synchronous belt to move through the synchronous belt gear on the shaft.

[0010] According to some embodiments of the present invention, a movable groove plate is slidably mounted on the bottom surface of the loading frame, and the synchronous belt is pressed by a synchronous belt pressure plate on the movable groove plate.

[0011] According to some embodiments of the present invention, the loading frame is installed with an adjustment plate, and the adjustment plate is installed with an adjustment bolt, and the adjustment bolt is in contact with the end surface of the movable slot plate.

[0012] According to some embodiments of the present invention, a limit plate is installed on the shaft end of the T-shaped connecting mechanism, a limit bolt is rollingly installed on the limit plate, and the limit bolt is connected to the limit bracket.

[0013] According to some embodiments of the present invention, the platform is installed with a limit switch, and the limit switch is respectively in contact with two ends of the auxiliary guide rail.

[0014] According to some embodiments of the present invention, a sensor fixture is installed on the slider fixture, and a displacement sensor is installed on the sensor fixture.

[0015] According to some embodiments of the present invention, a temperature sensor is installed on the side of the sensor fixture.

[0016] The present invention has at least the following beneficial effects: the testing machine adopts an inverted installation of the auxiliary guide pair, and the pressure it is subjected to is equal to the pressure subjected to the test guide pair, but in the opposite direction. The equipment can withstand higher loads. The stacked test guide pair, weighing sensor and semi-circular head trapezoidal thread screw for applying pressure load can effectively ensure the load application position, with high loading accuracy and good stability. It can be applied to rolling linear guide pair tests of different specifications, and displacement sensors and temperature sensors are installed synchronously. There is no need to disassemble the test guide pair, and temperature detection and motion accuracy detection can be performed. The test efficiency is high, the operation is simple, and the test data is managed by a database, which is convenient for use and data sharing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the loading frame of the utility model;

[0020] Figure 3 It is a schematic diagram of the driving structure of the utility model. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Reference Figure 1 A multifunctional testing machine for rolling linear guide pairs includes a frame 1, on which a T-shaped connecting mechanism 3 is installed through left and right bearing seats 2, so that a platform 4 can be rotated to change the orientation of each mounting surface, and a platform 4 for clamping the guide pair is provided on the T-shaped connecting mechanism 3, on which an auxiliary guide rail 5 is installed, and a loading frame is installed on the auxiliary guide rail 5 through an auxiliary slider 6, and the bottom of the screw 11 on the loading frame contacts the T-shaped pressure plate 16, and the T-shaped pressure plate 16 is connected to the slider clamp 14 through a weighing sensor 15, and a screw 11 is slidably installed through a nut 10, and the screw 11 is a semi-circular head trapezoidal thread screw.

[0026] Reference Figure 2A test guide rail 12 is installed on the upper surface of the platform 4, and a test slider 13 is installed on the test guide rail 12. The test slider 13 and the weighing sensor 15 are connected by a slider clamp 14. A T-shaped pressure plate 16 is installed on the weighing sensor 15 to contact the round head of the semi-circular head trapezoidal thread screw 11. The semi-circular head trapezoidal thread screw 11 provides pressure for the test guide rail 12 and the test slider 13. The weighing sensor 15 is used to collect load data, thereby realizing real-time change data of the load over the entire length range of the test guide rail pair and the entire test process.

[0027] The loading frame includes a frame bottom plate 7 mounted on an auxiliary slider 6 , the frame bottom plate 7 is connected to a frame top plate 9 via four support rods 8 , and the screw rod 11 is mounted in a nut 10 on the frame top plate 9 .

[0028] Reference Figure 2 The driving mode of the loading frame can be a gear rack structure. A rack 31 is provided on the platform 4. The loading frame is installed with a servo motor 29 through the motor mounting plate 28. The output shaft of the servo motor 29 is engaged with the rack 31 through the gear 30. The loading frame is driven to move by the engagement of the gear 30 and the rack 31.

[0029] Reference Figure 2 The driving mode of the loading frame can be a synchronous belt structure. A synchronous belt 20 is provided on the platform 4. The loading frame is clamped on the synchronous belt 20. The platform 4 is equipped with a servo drive motor 26 through a motor bracket 25. The servo drive motor 26 drives the synchronous belt 20 to move through the synchronous belt gear 19 on the shaft 18. During the specific installation, the lower surface of the platform 4 is equipped with two bearing seats 17 located at both ends in a group. The bearing seats 17 are equipped with shafts 18. The synchronous belt gears 19 are installed on the shafts 18. The synchronous belt gears 19 at both ends are connected by synchronous belts 20, and the synchronous belt 20 is connected by installing a movable groove plate 21 and a synchronous belt pressure plate 22 on the four-column frame bottom plate 7. A motor bracket 25 is installed on the lower surface of the platform 4. A servo drive motor 26 is installed on the motor bracket 25. The servo drive motor 26 is connected to the shaft 18 through a coupling 27 to drive the loading frame to move.

[0030] The loading frame is mounted with an adjustment plate 23 , and an adjustment bolt 24 is mounted on the adjustment plate 23 . The adjustment bolt 24 contacts the end surface of the movable slot plate 21 , thereby adjusting the position of the movable slot plate 21 .

[0031] A limit plate 33 is installed at the shaft end of the T-shaped connecting mechanism 3, and a limit bolt 34 is rollingly installed on the limit plate. The limit bolt 34 is connected to the limit bracket 32. The position of the T-shaped connecting mechanism 3 can be fixed by the limit plate 33 and the limit bolt 34.

[0032] The platform 4 is installed with limit switches 35 , which are respectively in contact with both ends of the auxiliary guide rail 5 , thereby controlling the movement range of the loading frame.

[0033] An oil baffle plate 36 is installed on the upper surface of the platform 4 to effectively prevent the flow of waste oil during the running-in process of the test guide rail 12 and the auxiliary guide rail 5; a 7-side oil baffle groove 37 is installed on each of the left and right ends of the four-column frame bottom plate 7. This design effectively takes into account the collection of waste oil.

[0034] Reference Figure 2 Sensor fixtures 40 are installed on both sides of the slider fixture 14. The sensor fixtures 40 are installed with displacement sensors 41 to detect the motion accuracy of the test guide pair.

[0035] A temperature sensor 42 is installed on the left side of the sensor fixture 40 . The probe of the temperature sensor 42 contacts the side of the test slider 13 , thereby detecting the real-time temperature of the test guide rail pair.

[0036] Reference Figure 3 A mobile drag chain 38 is installed on the back of the platform 4, and a drag chain support rod 39 is installed on the mobile drag chain 38. The drag chain support rod 39 is connected to the support rod 8. The mobile drag chain 38 is used to install the wires of the weighing sensor 15. The mobile drag chain 38 and the wires inside move together with the loading frame.

[0037] This testing machine uses an inverted installation of the auxiliary guide pair. The pressure it is subjected to is equal to the pressure on the test guide pair, but in the opposite direction. The equipment can withstand higher loads. The stacked test guide pair, weighing sensor and semi-circular head trapezoidal thread screw used to apply pressure load can effectively ensure the load application position, with high loading accuracy and good stability. It can be applied to rolling linear guide pair tests of different specifications. In addition, displacement sensors and temperature sensors are installed simultaneously, without the need to disassemble the test guide pair, and temperature detection and motion accuracy detection can be performed. The test efficiency is high, the operation is simple, and the test data is managed by a database, which is convenient for use and data sharing.

[0038] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A multifunctional testing machine for rolling linear guide pairs, characterized by: The invention comprises a frame (1), a T-shaped connecting mechanism (3) is installed on the frame (1) through left and right bearing seats (2), a platform (4) for clamping a guide rail pair is provided on the T-shaped connecting mechanism (3), an auxiliary guide rail (5) is installed on the platform (4), a loading frame is installed on the auxiliary guide rail (5) through an auxiliary slider (6), a screw rod (11) is slidably installed on the loading frame through a nut (10), the bottom of the screw rod (11) is in contact with a T-shaped pressure plate (16), and the T-shaped pressure plate (16) is connected to a slider clamp (14) through a weighing sensor (15).

2. The multifunctional testing machine for rolling linear guide rails according to claim 1, characterized in that: The loading frame comprises a frame bottom plate (7) mounted on an auxiliary slider (6); the frame bottom plate (7) is connected to a frame top plate (9) via four support rods (8); and the screw rod (11) is mounted in a nut (10) on the frame top plate (9).

3. The multifunctional testing machine for rolling linear guide rails according to claim 1, characterized in that: A rack (31) is provided on the platform (4), and a servo motor (29) is installed on the loading frame via a motor mounting plate (28). The output shaft of the servo motor (29) is meshed with the rack (31) via a gear (30).

4. The multifunctional testing machine for rolling linear guide rails according to claim 1, characterized in that: A synchronous belt (20) is provided on the platform (4), the loading frame is clamped on the synchronous belt (20), and a servo drive motor (26) is installed on the platform (4) through a motor bracket (25). The servo drive motor (26) drives the synchronous belt (20) to move through a synchronous belt gear (19) on a shaft (18).

5. The multifunctional testing machine for rolling linear guide rails according to claim 4, characterized in that: A movable slot plate (21) is slidably mounted on the bottom surface of the loading frame, and a synchronous belt (20) is pressed tightly by a synchronous belt pressing plate (22) on the movable slot plate (21).

6. The multifunctional testing machine for rolling linear guide rails according to claim 5, characterized in that: The loading frame is equipped with an adjustment plate (23), an adjustment bolt (24) is installed on the adjustment plate (23), and the adjustment bolt (24) contacts the end surface of the movable slot plate (21).

7. The multifunctional testing machine for rolling linear guide rails according to claim 1, characterized in that: A limiting disk (33) is installed on the shaft end of the T-shaped connecting mechanism (3), a limiting bolt (34) is rollingly installed on the limiting disk, and the limiting bolt (34) is connected to the limiting bracket (32).

8. The multifunctional testing machine for rolling linear guide rails according to claim 1, characterized in that: The platform (4) is provided with a limit switch (35), and the limit switch (35) is in contact with both ends of the auxiliary guide rail (5).

9. The multifunctional testing machine for rolling linear guide rails according to claim 1, characterized in that: A sensor fixture (40) is installed on the slider fixture (14), and a displacement sensor (41) is installed on the sensor fixture (40).

10. The multifunctional testing machine for rolling linear guide rails according to claim 9, characterized in that: A temperature sensor (42) is installed on the side of the sensor fixture (40).

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