Rapid guide rail straightening detection device and assembling method thereof

Abstract

The invention discloses a guide rail rapid straightening detection device which comprises a platform, two transverse grooves arranged on the platform in parallel and reference guide rails located on the outer sides of the transverse grooves, the transverse grooves are in sliding connection with guide rail supports and straightening mechanisms respectively, and the straightening mechanisms comprise fixing blocks. A trapezoidal nut and a hand wheel connected with the trapezoidal nut through a trapezoidal screw rod are arranged on the fixed block, a top head is connected to the trapezoidal nut, a detection mechanism is slidably mounted on the reference guide rail and comprises a sliding block and a magnetic gauge stand adsorbed on the sliding block, and a dial indicator is arranged on the magnetic gauge stand; the invention further discloses an assembling method of the device. The guide rail straightener can quickly, safely and effectively straighten the guide rail and detect the straightness of the guide rail.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment technology, specifically to a rapid guide rail straightening and testing device, and its assembly method. Background Technology

[0002] After the guide rail assembly is precision machined, it is found to be laterally bent due to its nearly 5-meter length and small cross-section, which fails to meet the technical requirements before installation and bonding. Currently, the straightening effect is achieved by manually applying pressure using simple tooling such as pads and screws. This method is time-consuming, inefficient, and results in significant screw wear, while also posing certain safety hazards during bending.

[0003] The guide rail has a large lateral bend after rough machining, which has a significant impact on the finishing process. Currently, it is mainly straightened to a certain range using a press before finishing. However, the parts are thin and the press platform is small, so the guide rail cannot be placed on the worktable as a whole during straightening, which poses a certain safety risk.

[0004] Currently, each time the guide rail is straightened, it needs to be moved to the work platform, and a laser monitoring instrument is used to check the straightness of the guide rail. This process of straightening and checking is repeated, which is inefficient. Summary of the Invention

[0005] In order to overcome the above-mentioned technical defects, one of the objectives of the present invention is to provide a guide rail rapid straightening and detection device, which can straighten the straightness of the guide rail when there is lateral bending, and directly detect the lateral straightness of the guide rail on the device.

[0006] The technical solution adopted by this invention to solve its technical problem is: a guide rail rapid straightening and testing device, including a platform with a rectangular frame structure and two transverse grooves arranged in parallel on the platform. A reference guide rail is also set on the platform outside the transverse grooves. A guide rail bracket and a straightening mechanism are slidably connected to the transverse grooves respectively. The straightening mechanism includes a fixing block that is fastened to the transverse groove. A trapezoidal nut and a handwheel connected to the trapezoidal nut by a trapezoidal screw are respectively set on the fixing block. A top head is connected to the trapezoidal nut. A testing mechanism is slidably installed on the reference guide rail. The testing mechanism includes a slider that is inserted into the reference guide rail and a magnetic base that is attracted to the slider. A dial indicator is set on the magnetic base. The side of the platform is designed with four Φ70 lifting holes to facilitate the subsequent installation and movement of the entire device.

[0007] The aforementioned guide rail rapid straightening and testing device has a horizontal opening on the locking arm of the slider, a spring is installed inside the opening, and a top rod that abuts against the reference guide rail is installed in front of the spring.

[0008] The aforementioned guide rail rapid straightening and testing device has reference blocks fixedly installed at both ends of the reference guide rail.

[0009] The aforementioned guide rail rapid straightening and testing device has a groove designed on one side of the long side of the platform for installing a reference guide rail.

[0010] The aforementioned guide rail rapid straightening and testing device has a T-shaped groove in its transverse groove, and the guide rail bracket and fixing block are respectively embedded in the T-shaped groove through the T-shaped block.

[0011] The aforementioned guide rail rapid straightening and testing device has its platform mounted on a platform support.

[0012] The second objective of this invention is to provide an assembly method for the aforementioned guide rail rapid straightening and testing device, comprising the following steps:

[0013] Step 1: Install the platform on the platform bracket through the hoisting holes. To ensure that the reference guide rail is easy to process and meets the straightness requirements, 10 small guide rails can be processed separately and then assembled in the groove of the platform to avoid deformation caused by the excessive length of the reference guide rail.

[0014] Step 2: Make a groove on the slider of the detection mechanism so that it is slightly wider than the width of the reference guide rail. In addition, make two holes on the side of the groove arm to install the spring and the push rod. The push rod uses the compression of the spring to keep the slider tightly against the reference guide rail.

[0015] Step 3: After the slider is fixed, attach the magnetic base to the slider and then install the dial indicator.

[0016] Step 4: Fit the two precision-machined reference blocks tightly with the reference guide rail, and determine the placement position of the reference blocks according to the length of the guide rail being measured;

[0017] Step 5: Connect the two guide rail brackets to the T-blocks with screws and then install them in the T-slot in the middle of the platform. Determine the installation position of the guide rail brackets according to the position where the guide rail to be tested needs to be straightened.

[0018] Step 6: Connect the trapezoidal screw and trapezoidal nut in the straightening mechanism and fix them in the fixing block. Install a handwheel on one end of the trapezoidal screw and fix it, and install a top head on the other end.

[0019] Step 7: After the straightening mechanism is installed, insert screws through the two holes on the fixing block, install T-blocks at the bottom of the screws, and then install them on the outermost T-slot of the platform.

[0020] The beneficial effects of this invention are: it enables safe and efficient straightening of guide rails, and facilitates direct testing of guide rail straightness after each calibration to ensure it meets the required accuracy. This invention allows for fast, safe, and effective guide rail straightening and straightness testing. Furthermore, this equipment can also be used for straightening and testing other long-shaft parts, demonstrating a wide range of applications. Attached Figure Description

[0021] Figure 1 This is the guide rail straightening principle of the present invention;

[0022] Figure 2 These are the three-view drawings, sectional view, and enlarged partial view of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the installation of the straightening mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the installation of the testing mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the alignment and testing mechanisms of the present invention after installation;

[0027] Figure 7 This is a schematic diagram of the straightening mechanism of the present invention;

[0028] Figure 8 This is a schematic diagram of the detection mechanism of the present invention.

[0029] The labels for each figure are as follows: 1—Platform, 2—Platform support, 3—Reference guide rail, 4—Reference block, 5—Guide rail support, 6—Straightening mechanism, 61—Fixing block, 62—Trapezoidal nut, 63—Trapezoidal screw, 64—Top head, 65—Handwheel, 7—Detection mechanism, 71—Slider, 72—Magnetic base, 73—Dial indicator, 74—Spring, 75—Top rod. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] The straightening device of the rapid straightening and testing device for guide rails of this invention employs a guide rail bracket and a clamping mechanism. Through the pressure action of the fulcrum and the clamping point, the guide rail undergoes pressure deformation. After releasing the pressure, the straightness accuracy of the guide rail is improved. This method has high reliability and can meet the usage requirements. The principle is as follows: Figure 1 As shown.

[0032] Reference Figure 2 , Figure 3 As shown, the present invention discloses a rapid straightening and testing device for guide rails, comprising a platform 1 with a rectangular frame structure and two transverse slots arranged parallel to each other on the platform 1. The platform 1 is mounted on a platform support 2, as shown. Figure 1As shown, platform 1 is designed to be 5 meters long, 800 mm wide, and 400 mm thick, with an overall flatness requirement of 0.25 mm. A reference guide rail 3 is also installed on the platform 1, located outside the transverse groove. The transverse groove is preferably a T-shaped groove. A guide rail bracket 5 and a straightening mechanism 6 are slidably connected to the T-shaped groove. The guide rail bracket 5 is embedded in the T-shaped groove via a T-shaped block. The straightness of the reference guide rail 3 is designed to be 0.05 mm, and the parallelism of the two end faces of the reference guide rail 3 is designed to be 0.1 mm. A detection mechanism 7 is slidably installed on the reference guide rail 3. Additionally, four Ф70 lifting holes are designed on the side of platform 1 to facilitate the subsequent installation and movement of the entire device.

[0033] like Figure 4 , Figure 5 and Figure 6 As shown, the platform 1 described above is the final installation platform 1 for the remaining mechanisms, and it serves as the carrier for the alignment mechanism 6 and the testing mechanism 7 to work together. To ensure that the testing mechanism 7 can operate effectively, a groove 30mm wide and 25mm deep is designed on one side of the long side of the platform 1 to install the reference guide rail 3, so that the testing mechanism 7 can be installed on the reference guide rail 3.

[0034] like Figure 7 As shown, the straightening mechanism 6 consists of a fixed block 61, a trapezoidal nut 62, a trapezoidal screw 63, a top head 64, and a handwheel 65. After assembling the straightening mechanism 6, it is installed on the outermost T-slot of the platform 1. The straightening mechanism 6 is connected to the T-slot by screws and a fixed block 61 with a T-shaped block. The left and right sliding in the T-slot can be achieved by adjusting the tightness of the screws and the fixed block 61. The appropriate position is adjusted according to the straightening position marked on the guide rail to be straightened, and the screws are tightened to fix it. The top head 64 is brought into contact with the required straightening position of the guide rail to be straightened. The top head 64 can be moved back and forth by rotating the handwheel 65. The pressure of the guide rail bracket 5 fulcrum and the pressure point of the top head 64 causes the guide rail to undergo pressure deformation. After releasing the pressure, the straightness accuracy of the guide rail is improved.

[0035] like Figure 8 As shown, the detection mechanism 7 consists of a slider 71, a magnetic base 72, a dial indicator 73, a spring 74, and a push rod 75. The spring 74 and push rod 75 are installed inside the slider 71 to fix the slider 71 to the reference guide rail 3. The dial indicator 73 is fixed to the magnetic base 72, which is then attracted to the slider 71. The spring 74 and push rod 75 installed on the slider 71 ensure that the inner surface of the slider 71 is in close contact with the boss surface of the reference guide rail 3 during movement.

[0036] After the testing mechanism 7 is installed, place the reference block 4 on both sides of the reference guide rail 3. The position of the reference block 4 can be adjusted appropriately according to the length of the guide rail to be tested. Place the guide rail to be tested on the platform 1, with the side of the guide rail to be tested aligned with the reference block 4. Adjust the dial indicator 73 on the testing mechanism 7 so that the pointer of the dial indicator 73 contacts the side of the guide rail to be tested and is pressed to a certain range. Drag the testing mechanism 7 along the reference guide rail 3 and observe the change of the dial indicator to obtain the straightness of the guide rail to be tested.

[0037] After the guide rail is measured, the position that needs to be straightened is marked on the guide rail with a marker. The guide rail bracket 5 is installed on the T-slot in the middle of the platform 1. According to the position that the guide rail needs to be straightened, the guide rail bracket 5 can be moved left and right in the T-slot to adjust to the appropriate position.

[0038] Previously, straightening a single guide rail took three days. Now, using this device, straightening and testing a single guide rail only takes about 0.5 days to reach the usable tolerance range. A set of four guide rails can reach usable accuracy in just two days. This saves operators time and effort, increasing efficiency by more than six times. Furthermore, the improved guide rail accuracy allows for faster inspection and repair of guide plates and other components during assembly.

[0039] The steps for using this testing device are as follows.

[0040] Step 1: Install the platform 1 onto the platform bracket 2 through the hoisting hole. To ensure easy processing and straightness requirements, the reference guide rail 3 on the platform 1 can be made of 10 small guide rails, which are then assembled into the groove on the platform 1 to avoid deformation due to excessive length.

[0041] Step 2: The groove on the slider 71 of the detection mechanism 7 on the reference guide rail 3 is slightly wider than the width of the reference guide rail 3. In addition, two holes are opened on the side of the groove of the slider 71 for installing the spring 74 and the push rod 75. The push rod 75 uses the compression of the spring 74 to press the slider 71 of the detection mechanism 7 tightly against the reference guide rail 3.

[0042] Step 3: After the slider 71 is fixed, attach the magnetic base 72 to the slider 71 and then install the dial indicator 73.

[0043] Step four: Fit the two precision-machined reference blocks 4 tightly with the reference guide rail 3, and determine the placement position of the reference blocks 4 according to the length of the guide rail being measured.

[0044] Step 5: Connect the two guide rail brackets 5 to the T-blocks with screws and then install them in the T-slot in the middle of the platform 1. Determine the installation position of the guide rail brackets 5 according to the position where the guide rail to be tested needs to be straightened.

[0045] Step six: Connect the trapezoidal screw 63 and trapezoidal nut 62 in the straightening mechanism 6 and fix them in the fixing block 61. Install a handwheel 65 on one end of the trapezoidal screw 63 and fix it, and install a top head 64 on the other end. The part where the top head 64 connects to the trapezoidal screw 63 consists of two semi-circular movable frictions to achieve the rotation of the screw.

[0046] Step 7: After the straightening mechanism 6 is installed, screws are inserted through the two holes on the fixing block 61 of the straightening mechanism 6. T-blocks are installed at the bottom of the screws, and then they are installed on the outermost T-slot of the platform 1.

[0047] The main technical performance requirements of this invention are as follows.

[0048] The equipment has a detection accuracy of ≤0.05mm; the pressure fulcrum is adjustable; it is equipped with a mechanism for detecting the accuracy of the guide rail, the straightness of the reference guide rail 3 of which is ≤0.05mm, and the measurement error of the detection mechanism 7 is ≤0.02mm; the equipment is a steel structure assembly, and each fulcrum structure and pressure point structure are mechanical components, which are tightened by fixed screws to ensure safety and reliability during the straightening process.

[0049] A reference block 4 is installed on the straightening platform 1. The two ends of the guide rail are brought flat against the positioning block. The accuracy detection component is dragged with reference block 4 as the reference. The straightness of the guide rail can be detected by the change of the 73 mark of the dial indicator during the movement.

[0050] After detecting the straightness error value of the guide rail, the low points at both ends of the guide rail are placed against the support, and then the support is locked onto the fixed support seat. The pressure mechanism is used to turn the handwheel 65 to press the high point of the guide rail. After repeated rough and fine calibration, the technical requirements are met.

[0051] The straightening device of the present invention uses a guide rail bracket 5 and a clamping mechanism. Through the pressure action of the fulcrum and the pressure point, the guide rail is subjected to pressure deformation. After the pressure is released, the straightness accuracy of the guide rail is improved. This method has high reliability and can meet the usage requirements.

[0052] When assembling the guide rail, if the straightness of its side surface reaches 0.2 to 0.7 mm, it will not affect the accuracy of subsequent assembly. After the reference guide rail 3 of the equipment is assembled, its straightness is ≤0.05 mm and the measurement error of the detection mechanism 7 is ≤0.02 mm, which can meet the assembly requirements of the guide rail. Therefore, when designing the reference guide rail 3, accuracy requirements were made for the consistency of dimensions and the perpendicularity of the side and bottom surfaces. The measuring instrument also adopts a dial indicator 73 with an accuracy of 0.01 mm, which effectively ensures the detection effect of the guide rail.

[0053] The bending position of the guide rail is uncertain, and the straightening point and support point must be adjustable according to the inspection results. Therefore, the guide rail bracket 5 and the straightening mechanism 6 must be adjustable. In the design, both the guide rail bracket 5 and the straightening mechanism 6 are connected to the T-slot using screws and T-blocks to ensure that the straightening mechanism 6 is adjustable.

[0054] To prevent the guide rail from tipping over during the straightening process, the device is designed with a set of pressure plates to press against the guide rail to prevent tipping over, which provides a certain degree of protection.

[0055] The trapezoidal nut 62 and trapezoidal screw 63 in the clamping mechanism of the device need to be subjected to repeated forces. Therefore, in order to ensure the reliability of the structure and the ease of maintenance, the trapezoidal nut 62 is not designed directly on the screw fixing block 61. Instead, a separate trapezoidal nut 62 is designed and fixed on the screw fixing block 61 for easy replacement.

[0056] Those skilled in the art will readily understand that the above description is merely a preferred use case of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid straightening and testing device for guide rails, characterized in that: The platform (1) includes a rectangular frame structure and two transverse slots arranged in parallel on the platform (1). A reference guide rail (3) located outside the transverse slots is also provided on the platform (1). A guide rail bracket (5) and a straightening mechanism (6) are slidably connected on the transverse slots. The straightening mechanism (6) includes a fixing block (61) connected to the transverse slot. A trapezoidal nut (62) and a handwheel (65) connected to the trapezoidal nut (62) by a trapezoidal screw (63) are respectively provided on the fixing block (61). A top head (64) is connected to the trapezoidal nut (62). A detection mechanism (7) is slidably connected to the reference guide rail (3). The detection mechanism (7) includes a slider (71) that is inserted into the reference guide rail (3) and a magnetic base (72) that is attracted to the slider (71). A dial indicator (73) is provided on the magnetic base (72). A hoisting hole is installed on the side of the platform (1).

2. The guide rail rapid straightening and testing device according to claim 1, characterized in that, The slider (71) has a transverse opening on its arm, and a spring (74) is installed inside the opening. A push rod (75) is installed in front of the spring (74).

3. A guide rail rapid straightening and testing device according to claim 1 or 2, characterized in that, The reference guide rail (3) has reference blocks (4) fixedly installed at both ends.

4. The guide rail rapid straightening and testing device according to claim 3, characterized in that, The platform (1) has a reference guide rail (3) installed on one long side via a groove.

5. The guide rail rapid straightening and testing device according to claim 4, characterized in that, The transverse groove is a T-shaped groove, and the guide rail bracket (5) and the fixing block (61) are respectively embedded in the T-shaped groove through the T-shaped block.

6. The guide rail rapid straightening and testing device according to claim 5, characterized in that, The platform (1) is mounted on the platform support (2).

7. An assembly method for the guide rail rapid straightening and testing device as described in claim 1, characterized in that, The steps are as follows: Step 1: Install the platform (1) on the platform bracket (2) through the hoisting hole, process multiple small guide rails separately, and then assemble them in the groove on the platform (1) to obtain the reference guide rail (3). Step 2: Make a groove on the slider (71) that is slightly wider than the reference guide rail (3), make a hole on the side of the clamp arm to install the spring (74) and the push rod (75), and install the detection mechanism (7) on the reference guide rail (3); Step 3: Attach the magnetic base (72) to the slider (71) and then install the dial indicator (73). Step 4: Fit the two reference blocks (4) tightly with the reference guide rail (3), and determine the position of the reference blocks (4) according to the length of the guide rail being measured; Step 5: Install the two guide rail brackets (5) into the T-slots of the platform (1) using T-blocks. Determine the position of the guide rail brackets (5) according to the position of the guide rail to be straightened. Step 6: Connect the trapezoidal screw (63) and the trapezoidal nut (62) and fix them in the fixing block (61). Install a handwheel (65) at one end of the trapezoidal screw (63) and a top head (64) at the other end. Step 7: After the straightening mechanism (6) is installed, screws are inserted into the two holes on the fixing block (61), T-blocks are installed at the bottom of the screws, and then the T-blocks are installed on the outermost T-slot of the platform (1).

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