Glue injection process method for mountain-shaped guide rail of high-precision numerical control horizontal turning, boring and grinding machine

Abstract

The invention discloses a glue injection process method for an E-shaped guide rail of a high-precision numerical control horizontal lathe boring grinding machine, and belongs to the technical field of machinery. According to the method, a conventional machine tool guide rail soft belt pasting technology is replaced with a glue injection technology method, the reprocessing and fitting working procedures are omitted, the assembly efficiency is improved, the assembly period is shortened, the contact effect better than that of the soft belt is achieved, the assembly period is shortened by about half compared with the conventional soft belt pasting technology, implementation is easy, safety is high, and the method is suitable for popularization and application. And certain controllability is achieved.

Description

Technical Field

[0001] The invention relates to a glue injection process method for a mountain-shaped guide rail of a high-precision CNC horizontal boring and grinding machine, belonging to the technical field of machinery. Background Art

[0002] With the rapid development of the machine tool industry, the requirements for the machining accuracy, load-bearing capacity and service life of machine tools are getting higher and higher. As an important part of the machine tool feed system, the guide rails of CNC machine tools have a decisive influence on the machining accuracy and load-bearing capacity of lathes. The structural forms of guide rails are different, and the advantages and disadvantages are also different: in the guide rail pair, the moving side is called the active guide rail, and the stationary side is called the support guide rail; according to the friction between the active guide rail and the support guide rail, it can be divided into three categories: rolling guide rails, sliding guide rails and hydrostatic guide rails. Sliding guide rails have the characteristics of simple structure, easy manufacturing, high rigidity and good vibration resistance. In order to overcome its shortcomings such as large friction coefficient, fast wear and short service life, it is usually pasted on the surface of the guide rail by bonding soft tape, thereby improving the wear resistance of the guide rail, extending the service life of the machine tool, and effectively protecting the machine tool guide rail. However, the conventional soft tape pasting process requires cutting of the soft tape, pasting and curing of the soft tape, and then reprocessing of the pasted soft tape to make the soft tape reach the position accuracy required by the drawing. Finally, the movable guide rail and the support guide rail with the bonded soft tape are combined and tested. After the contact requirements are met, this process is considered complete, which has a great impact on assembly efficiency. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a method for injecting glue into the guide rails of a high-precision CNC horizontal turning, boring and grinding machine, which replaces the conventional soft tape pasting process for machine tool guide rails, eliminates the reprocessing and joint grinding procedures, and improves assembly efficiency.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a method for injecting glue into a mountain-shaped guide rail of a high-precision CNC horizontal boring and grinding machine, the steps of which are as follows: (1) Clean the guide rail surfaces of the movable guide rail and the supporting guide rail, and apply mold release agent to the corresponding places of the supporting guide rail and the movable guide rail where glue injection is not required (including glue injection holes and guide rail lubricating oil holes); (2) Use instant glue to fix the Φ4 sealing silicone strips in the sealing grooves on the left and right sides of the movable guide rail. The sealing blocks on the front and rear sides should be installed after the precision of the components where the movable guide rail is located is adjusted to meet the requirements before the glue is injected; (3) Lift the components of the movable guide rail onto the support guide rail with qualified precision adjustment, and install the adjustment screws and top screws; (4) Use adjustment screws and top screws to adjust the precision of the movable guide rail; (5) After the precision adjustment is qualified, install the tooling pressure plate on the movable guide rail, and close the sealing block tooling on the front and rear sides. Glue a Φ4 sealing silicone strip in the sealing block, and leave a glue outlet on one side; (6) Install pipe joints, hoses and injection coating tools on each injection hole of the movable guide rail; (7) Glue is injected into each guide rail separately. When glue is discharged from the glue outlet on one side, the injection is completed; (8) After curing is completed, clean the glue from the non-injected guide rails.

[0005] Operation requirements: (1) The entire injection operation time from mixing to injection should be completed within 1 hour; (2) The mixing and stirring of the glue must be carried out strictly in accordance with the glue instructions; (3) The curing time and temperature shall be in accordance with the instructions; (4) Use a dial indicator to check that the tool holder accuracy does not change during glue injection; (5) After the glue injection is completed, the residual glue in the glue injection tube must be cleaned in time. It can be cleaned with cleaning oil before it solidifies, and the residual glue can be wiped clean with cotton yarn.

[0006] The beneficial effects of the present invention are as follows: the present invention utilizes a glue injection process to replace a conventional machine tool guide rail soft tape pasting process, thereby eliminating reprocessing and joint research processes, improving assembly efficiency, shortening the assembly cycle, and achieving a contact effect superior to that of a soft tape. The present invention reduces the assembly cycle by about half compared to a conventional soft tape pasting process, is easy to implement, has high safety, and has certain controllability. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is the layout diagram of the tooling for hanging the large tool holder behind the bed.

[0008] Figure 2 Schematic diagram of adjusting the parallelism of four points of the tool holder.

[0009] Figure 3 Schematic diagram of adjusting the verticality between the tool holder and the bed.

[0010] Figure 4 Schematic diagram of glue injection for the large tool holder.

[0011] Figure 5 This is the tooling layout diagram after the tool holder body is hoisted and falls on the guide rail of the large tool holder.

[0012] Figure 6 Schematic diagram of the precision adjustment of the upper tool holder.

[0013] Figure 7 Schematic diagram of glue injection for the upper tool holder.

[0014] Figure 8 This is the tooling layout diagram for the lower body of the tailstock falling behind the bed.

[0015] Fig. 9 Schematic diagram of glue injection in the lower body of the tailstock. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] A method for injecting glue into a mountain-shaped guide rail of a high-precision CNC horizontal boring and grinding machine, the steps are as follows: (1) Clean the guide rail surfaces of the movable guide rail and the supporting guide rail, and apply mold release agent to the corresponding places of the supporting guide rail and the movable guide rail where glue injection is not required (including glue injection holes and guide rail lubricating oil holes); (2) Use instant glue to fix the Φ4 sealing silicone strips in the sealing grooves on the left and right sides of the movable guide rail. The sealing blocks on the front and rear sides should be installed after the precision of the components where the movable guide rail is located is adjusted to meet the requirements before the glue is injected; (3) Lift the components of the movable guide rail onto the support guide rail with qualified precision adjustment, and install the adjustment screws and top screws; (4) Use adjustment screws and top screws to adjust the precision of the movable guide rail; (5) After the precision adjustment is qualified, install the tooling pressure plate on the movable guide rail, and close the sealing block tooling on the front and rear sides. Glue a Φ4 sealing silicone strip in the sealing block, and leave a glue outlet on one side; (6) Install pipe joints, hoses and injection coating tools on each injection hole of the movable guide rail; (7) Glue is injected into each guide rail separately. When glue is discharged from the glue outlet on one side, the injection is completed; (8) After curing is completed, clean the glue from the non-injected guide rails.

[0018] Example 1 Adjustment and glue injection process of horizontal lathe tool holder: 1. Clean the tool holder and the guide rail surface of the bed, and apply mold release agent to the corresponding places where glue injection is not required on the guide rail and the tool holder (including the glue injection holes and the lubricating oil holes of the guide rail); 2. Press Figure 1 As shown in the figure, use instant glue to fix the Φ4 sealing silicone strips in the sealing grooves on the left and right sides of the glue injection guide rail on the large tool holder body, and install the sealing blocks on the front and rear sides before the glue injection after the accuracy of the large tool holder body is adjusted to meet the requirements; 3. Use bakelite strips to plug the lubricating oil holes on the tool holder and mark them; 4. The tool holder is placed on the bed guide rail with qualified precision adjustment. Figure 1 As shown, install the adjusting screw and top screw; 5. Press Figure 2As shown in the figure, place the bed mountain guide rail gauge on the bed guide rail, put a flat ruler and a level on the gauge, and use a thousandth point or a feeler gauge to adjust the horizontal accuracy of the flat ruler; 6. Press Figure 2 As shown in the figure, place a large tool holder mountain-shaped guide rail inspection fixture on the large tool holder, use a gauge on the bed guide rail level and the large tool holder guide rail inspection fixture to check the four-point parallelism, and adjust the adjustment screws and top screws of the large tool holder to achieve the required accuracy; 7. Press Figure 3 As shown in the figure, place the angle ruler on the process reference plane of the mountain-shaped guide rail on the large tool holder, use the upper guide rail mountain-shaped gauge to check the parallelism of one right-angle side of the angle ruler with the upper guide rail, and then check the verticality of the bed guide rail and the upper guide rail of the large tool holder, and adjust the adjustment screws and top screws on the large tool holder to meet the requirements; 8. After the precision adjustment is qualified, install the tooling pressure plate, and close the sealing block tooling on both ends of the tool holder. Glue the Φ4 sealing silicone strip in the sealing block, and leave a glue outlet on one side; 9. Press Figure 4 As shown, pipe joints, hoses and injection coating tools are installed on the glue injection holes of each guide rail respectively; 10. Glue is injected into each guide rail separately. When glue comes out of the glue outlet on one side, the injection is completed.

[0019] Operation requirements: (1) The entire injection operation time from mixing to injection should be completed within 1 hour; (2) The mixing and stirring of the glue must be carried out strictly in accordance with the glue instructions; (3) The curing time and temperature shall be in accordance with the instructions for use of the adhesive; (4) When injecting glue, use a dial indicator to monitor the accuracy of the tool holder and there is no change; (5) After the glue injection is completed, the residual glue in the glue injection tube must be cleaned immediately. It can be cleaned with cleaning oil before it solidifies, and the residual glue can be wiped clean with cotton yarn.

[0020] 11. After curing is completed, clean the glue from the non-injected guide rails.

[0021] Example 2 Tool holder adjustment and glue injection process on horizontal lathe: 1. Clean the upper tool holder body and the upper guide rail surface of the large tool holder, and apply mold release agent to the corresponding places on the upper guide rail of the large tool holder and the upper tool holder body where glue injection is not required (including glue injection holes and guide rail lubricating oil holes); 2. Press Figure 5 As shown in the figure, use instant glue to fix the Φ4 sealing silicone strips in the sealing grooves on the left and right sides of the glue injection guide rail on the upper tool holder body, and the sealing blocks on the front and rear end surfaces are fixed and installed before the glue injection after the upper tool holder body accuracy is adjusted to meet the requirements; 3. Use bakelite strips to plug the lubrication holes on the tool holder and mark them; 4. Lift the tool holder and place it on the guide rail of the large tool holder with qualified precision adjustment. Figure 5 As shown in the figure, install the tooling adjustment plate, adjustment screws and top screws; 5. Press Figure 6 As shown in the figure, place a large tool holder mountain-shaped guide rail gauge on the upper guide rail of the large tool holder, place a level on the gauge, and use a micrometer pad or a feeler gauge to adjust the horizontal accuracy of the level ruler; 6. Press Figure 6 As shown in the figure, use a flat gauge seat on the large tool holder mountain rail gauge and flat ruler, push the gauge on the upper tool holder electric tool table handle surface A to check the parallelism (horizontal and vertical directions), and adjust the upper tool holder's adjustment screws and top screws to achieve the required accuracy; 7. Press Figure 6 As shown, suck the dial indicator seat on the large tool holder mountain guide rail inspection fixture, push the dial indicator to detect the parallelism between the upper guide rail of the large tool holder and the B surface of the upper tool holder body, and adjust the adjustment screws and top screws of the large tool holder to meet the requirements; 8. After the precision adjustment is qualified, install the tooling pressure plate, and close the sealing block tooling on both ends of the tool holder. Glue the Φ4 sealing silicone strip in the sealing block, and leave a glue outlet on one side; 9. Press Figure 7 As shown, pipe joints, hoses and injection coating tools are installed on the glue injection holes of each guide rail respectively; 10. Glue is injected into each guide rail separately. When glue is discharged from the glue outlet on one side, the injection is completed; Operation requirements: (1) The entire injection operation time from mixing to injection should be completed within 1 hour; (2) The mixing and stirring of the glue must be carried out strictly in accordance with the glue instructions; (3) The curing time and temperature shall be in accordance with the instructions for use of the adhesive; (4) When injecting glue, use a dial indicator to monitor the accuracy of the tool holder and there is no change; (5) After the glue injection is completed, the residual glue in the glue injection tube must be cleaned immediately. It can be cleaned with cleaning oil before it solidifies, and the residual glue should be wiped clean with cotton yarn; 11. After curing is completed, clean the glue from the non-injected guide rails.

[0022] Example 3 Adjustment and injection process of the lower body of the tail seat of the horizontal car: 1. Clean the lower body of the tailstock and the guide rail surface of the bed, and apply mold release agent to the corresponding places where glue injection is not required on the guide rail of the bed and the lower body of the tailstock (including the glue injection hole and the guide rail lubricating oil hole); 2. Press Figure 8As shown in the figure, use instant glue to fix the Φ4 sealing silicone strips on the left and right sides of the glue injection guide rail on the lower body of the tailstock. The sealing block tooling on the front and rear sides will be installed before glue injection after the tailstock body is adjusted to meet the accuracy. 3. Use bakelite strips to plug all the lubricating oil holes on the lower body of the tailstock; 4. Install the pressure plate, screws, nuts and washers on the lower body of the tailstock; 5. The lower body of the tailstock falls on the bed guide rail with qualified precision adjustment. Figure 8 As shown, install the tooling adjustment screw; 6. Hang the upper body of the tailstock on the lower body and adjust the accuracy of the tailstock; 7. After the accuracy adjustment is qualified, install the sealing block tooling and Φ4 sealing silicone strip on the front and rear ends of the tailstock lower body guide rail and the flat guide rail, and make sure to leave a glue outlet; 8. Press Fig. 9 As shown, install the pipe joint, hose and injection coating tool on the injection hole; 9. Inject glue on the sides of injection holes 1, 2, and 3 respectively; Operation requirements: (1) The entire injection operation time from mixing to injection should be completed within 1 hour; (2) The mixing and stirring of the glue must be carried out strictly in accordance with the glue instructions; (3) The curing time and temperature shall be in accordance with the instructions for use of the adhesive; (4) When injecting glue, use a dial indicator to monitor the accuracy of the tool holder and there is no change; (5) After the glue injection is completed, the residual glue in the glue injection tube must be cleaned immediately. It can be cleaned with cleaning oil before it solidifies, and the residual glue should be wiped clean with cotton yarn; 10. After curing is completed, clean the glue from the non-injected guide rails.

Claims

1. A method for injecting glue into a mountain-shaped guide rail of a high-precision CNC horizontal boring and grinding machine, characterized in that: Here are the steps: (1) Clean the guide rail surfaces of the movable guide rail and the supporting guide rail, and apply mold release agent to the corresponding places of the supporting guide rail and the movable guide rail where glue injection is not required, including the glue injection holes and the guide rail lubricating oil holes; (2) Use instant glue to fix the Φ4 sealing silicone strips in the sealing grooves on the left and right sides of the movable guide rail. The sealing blocks on the front and rear sides should be installed after the precision of the components where the movable guide rail is located is adjusted to meet the requirements before the glue is injected; (3) Lift the components of the movable guide rail onto the support guide rail with qualified precision adjustment, and install the adjustment screws and top screws; (4) Use adjustment screws and top screws to adjust the precision of the movable guide rail; (5) After the precision adjustment is qualified, install the tooling pressure plate on the movable guide rail, and close the sealing block tooling on the front and rear sides. Glue a Φ4 sealing silicone strip in the sealing block, and leave a glue outlet on one side; (6) Install pipe joints, hoses and injection coating tools on each injection hole of the movable guide rail; (7) Glue is injected into each guide rail separately. When glue is discharged from the glue outlet on one side, the injection is completed; (8) After curing is completed, clean the glue from the non-injected guide rails.

2. The method for injecting glue into the guide rail of a high-precision CNC horizontal boring and grinding machine according to claim 1, characterized in that: The entire injection operation time from the start of mixing and stirring to the end of injection should be controlled to be completed within 1 hour.

3. The method for injecting glue into the guide rail of a high-precision CNC horizontal boring and grinding machine according to claim 1, characterized in that: The mixing and stirring of the glue must be carried out strictly in accordance with the instructions of the glue, and the curing time and temperature must be in accordance with the requirements of the instructions.

4. The method for injecting glue into the guide rail of a high-precision CNC horizontal boring and grinding machine according to claim 1, characterized in that: Use a dial indicator to detect changes in tool holder accuracy when injecting glue2.

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