Quantitative adjustment structure for gap between slider and guide rail seat of wedge-based forming machine

Abstract

The utility model discloses a kind of gap quantitative adjustment structure between slider and guide rail seat of forming machine based on wedge, belong to forming machine equipment technical field, including slidingly matched guide rail seat and slider, the end surface first mounting plate of guide rail seat, first mounting plate is equipped with main guide rail, the side of slider towards main guide rail is equipped with main wear plate, wedge is equipped between main guide rail and guide rail seat end surface, first mounting plate is equipped with the first adjusting screw of rotation connection, first adjusting screw end part is inserted into wedge and is connected with wedge screw thread, the first side surface of main guide rail away from slider and wedge wedge shape cooperation, first side surface is equipped with multiple arc locating grooves along the direction of being close to first mounting plate, wedge is equipped with the locating protrusion of arc structure correspondingly, locating protrusion and locating groove concave-convex cooperation.The utility model can realize fixed step gap adjustment every switching one locating groove, help to improve the accuracy and efficiency of gap adjustment.

Description

Technical Field

[0001] This utility model belongs to the technical field of molding machine equipment, and specifically relates to a quantitative adjustment structure for the gap between the molding machine slider and the guide rail seat based on a wedge block. Background Technology

[0002] With the increasing thickness of sheet metal to be formed in China, from the original 40-50mm to the current 100-200mm, traditional guide rail gap adjustment structures can no longer meet the needs of existing multi-bay large forming machines. Currently, most forming machines in China adjust the gap between the guide rail and the slider during operation using the following two methods: ① Adjusting the gap between the guide rail and the slider by stretching a rectangular plate with screws. ② Adjusting the gap between the slider and the guide rail by the rolling of guide wheels and their contact with the guide rail plate.

[0003] Both of the above methods have certain limitations. In Method 1, the rectangular plate is subjected to force at multiple points without surface contact, which cannot guarantee the parallelism between the guide rail pressure plate and the slider, thus affecting the adjustment accuracy. In Method 2, the guide wheel is prone to loosening after running for a period of time, and subsequent manual adjustment is required frequently. Furthermore, when the guide wheel is subjected to a certain off-center load, the small contact surface will also affect the accuracy.

[0004] Existing technologies also include adjusting guide rail clearance using wedges. For example, Chinese utility model patent (CN206317435U) discloses a mechanism for adjusting guide rail clearance of a press slide, including a base, a guide rail and a guide rail seat. This patent utilizes the sloping mating surface of the adjusting wedge and the fixed wedge, and adjusts the adjusting wedge by screws, which can effectively adjust the guide rail clearance. The structure is simple and the operation is convenient.

[0005] In the process of adjusting the gap between the guide rail and the slider using wedges, the wedge movement distance is often based on the operator's experience. This involves continuous trial and error, along with repeated measurements using feeler gauges, to finally achieve the desired gap adjustment. The gap adjustment process is cumbersome and inefficient. Utility Model Content

[0006] The purpose of this invention is to provide a wedge-based structure for quantitatively adjusting the gap between the slider and the guide rail of a molding machine, thereby solving the problems existing in the prior art mentioned above.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A wedge-based molding machine slider and guide rail seat gap quantitative adjustment structure includes a slidingly fitted guide rail seat and a slider. The guide rail seat has a first mounting plate on its end face, and the first mounting plate has a main guide rail. The slider has a main wear-resistant plate on its side facing the main guide rail. A wedge is provided between the main guide rail and the end face of the guide rail seat. A first adjusting screw is passed through the first mounting plate and rotatably connected to it. The end of the first adjusting screw passes through the wedge and is threadedly connected to the wedge. The first side of the main guide rail away from the slider has a wedge-shaped fit with the wedge. The first side has multiple arc-shaped positioning grooves along the direction close to the first mounting plate. The wedge has corresponding arc-shaped positioning protrusions, and the positioning protrusions fit into the positioning grooves.

[0008] Furthermore, the positioning protrusion has a 1 / 4 spherical structure. The positioning protrusion has a first arc-shaped surface and a first limiting surface perpendicular to the surface of the wedge. The first arc-shaped surface faces the first mounting plate. The positioning groove has a corresponding second arc-shaped surface and a second limiting surface perpendicular to the first side surface. The first limiting surface is used to abut against the second limiting surface to limit the wedge.

[0009] Furthermore, the positioning protrusion is provided with a sliding rod perpendicular to the surface of the wedge block, and the wedge block is provided with a receiving groove and a guide groove connected in sequence. The receiving groove is used to receive the positioning protrusion, and the sliding rod slides through the guide groove. A spring is provided in the guide groove, with one end of the spring abutting against the inner wall of the guide groove and the other end abutting against the end of the sliding rod.

[0010] Furthermore, the slider is provided with a second mounting plate, the second mounting plate is provided with a side guide rail, the side guide rail is provided with a side wear-resistant plate on the side facing the main guide rail, the second mounting plate is provided with a second adjusting screw that is rotatably connected to it, the end of the second adjusting screw passes through the side guide rail and is threadedly connected to the side guide rail, the second adjusting screw is used to adjust the gap between the second wear-resistant plate and the main guide rail.

[0011] Compared with the shortcomings and deficiencies of existing technologies, this utility model has the following beneficial effects: This invention provides a wedge-based structure for quantitatively adjusting the gap between the slider and guide rail of a molding machine. By using a positioning protrusion and a uniformly distributed positioning groove in a convex-concave fit, combined with a preset groove spacing and inclined surface angle, a fixed step gap adjustment can be achieved by switching each positioning groove. This eliminates the need to rely on operator experience or repeated measurements, solving the problems of trial-and-error adjustment and insufficient accuracy in existing adjustment methods, and helping to improve the accuracy and efficiency of gap adjustment.

[0012] In this invention, the positioning protrusion adopts a 1 / 4 spherical structure. Through the abutment and cooperation of the first limiting surface and the second limiting surface, it can effectively limit the wedge block from retracting away from the first mounting plate, which helps to improve the cooperation stability between the slider and the guide rail seat. The cooperation of the slide rod, the receiving groove and the guide groove allows the positioning protrusion to smoothly retract and slide during adjustment, which greatly reduces the contact friction loss between the positioning protrusion and the first side. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the sliding fit between the slider and the slide rail seat in this utility model.

[0014] Figure 2 This is a schematic diagram of the wedge block and the main slide rail wedge-shaped fit in this utility model.

[0015] Figure 3 yes Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0016] Figure 4 This is a schematic diagram of the positioning protrusion in this utility model, which is in the shape of a quarter sphere.

[0017] Figure 5 This is a schematic diagram of the sliding fit between the slide rod and the guide groove in this utility model.

[0018] In the diagram: 10. Slider; 11. Second mounting plate; 12. Main wear-resistant plate; 20. Guide rail seat; 21. End face; 22. First mounting plate; 30. Main guide rail; 31. First side surface; 32. Second side surface; 331. Second arc-shaped surface; 332. Second limiting surface; 40. Wedge block; 41. First adjusting screw; 42. Positioning protrusion; 421. First arc-shaped surface; 422. First limiting surface; 43. Receiving groove; 44. Guide groove; 45. Slide rod; 46. Spring; 50. Side guide rail; 51. Side wear-resistant plate; 52. Second adjusting screw. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] Reference Figure 1This utility model discloses a wedge-based structure for quantitatively adjusting the gap between a forming machine slider and a guide rail seat. It includes a sliding guide rail seat 20 and a slider 10. The end face 21 of the guide rail seat 20 faces the slider 10. A first mounting plate 22 is vertically and fixedly connected to the end face 21. The first mounting plate can be connected by welding or high-strength bolts. A main guide rail 30 is detachably connected to the side of the first mounting plate 22 facing the slider 10 by bolts. A main wear-resistant plate 12 is correspondingly fixedly installed on the side of the slider 10 facing the main guide rail 30. The main wear-resistant plate 12 is made of high-manganese steel and fits against the surface of the main guide rail 30, effectively reducing direct frictional wear between the slider 10 and the main guide rail 30, and significantly extending the overall service life of the equipment.

[0021] Reference Figure 2 and Figure 3 A wedge 40 is provided between the main guide rail 30 and the end face 21 of the guide rail seat 20. The surface of the wedge 40 facing the main guide rail 30 is an inclined wedge-shaped mating surface. The surface of the main guide rail 30 away from the slider 10 is the first side surface 31, which is an inclined surface adapted to the wedge-shaped mating surface of the wedge 40. The two form a complete inclined surface fitting structure. By moving the wedge 40 in a direction perpendicular to the first mounting plate 22, the main guide rail 30 can be pushed to move stably in a direction perpendicular to the movement of the slider 10, i.e., closer to or farther from the slider 10, with the help of the guiding transmission effect of the inclined surface. This allows for precise adjustment of the gap between the main wear-resistant plate 12 and the main guide rail 30.

[0022] A first adjusting screw 41 is inserted through a first mounting plate 22. The first adjusting screw 41 is rotatably connected to the first mounting plate 22 via a bearing. The outer ring of the bearing is interference-fitted with the mounting hole of the first mounting plate 22, ensuring that the first adjusting screw 41 can only rotate around its own axis and cannot produce axial displacement. The end of the first adjusting screw 41 passes through a wedge 40 and is threadedly connected to a threaded hole inside the wedge 40. When the operator rotates the first adjusting screw 41, the wedge 40 can be driven to move linearly towards or away from the first mounting plate 22 through the threaded transmission action.

[0023] Reference Figure 3The first side 31 of the main guide rail 30 is evenly provided with multiple arc-shaped positioning grooves 33 along the direction close to the first mounting plate 22. The spacing of the positioning grooves 33 is precisely calculated according to the preset gap adjustment step. For example, if the preset single adjustment amount is 0.5mm, combined with the inclination angle of the first side 31 of 30°, the spacing of the positioning grooves 33 is calculated to be 1mm, ensuring that each movement of one groove corresponds to a gap change of 0.5mm. The wedge-shaped mating surface of the wedge block 40 is provided with an arc-shaped positioning protrusion 42. Specifically, the positioning protrusion 42 is 1 / 2 spherical. The positioning protrusion 42 and the positioning groove 33 form a concave-convex mating relationship. The mating gap between the two is controlled at 0.01-0.03mm, which can ensure that the positioning protrusion 42 can slide smoothly when the wedge block 40 moves, and can effectively avoid the positioning failure problem caused by excessive gap.

[0024] The slider 10 is fixedly connected to a side guide rail 50 by bolts. The side guide rail 50 is located on one side of the second side surface 32 of the main guide rail 30. A side wear-resistant plate 51 is fixedly connected to the surface of the side guide rail 50 facing the main guide rail 30, and the side wear-resistant plate 51 fits against the second side surface 32 of the main guide rail 30. A second mounting plate 11 is fixedly connected to the slider 10. A second adjusting screw 52 is rotatably connected to the second mounting plate 11 via a bearing. The end of the second adjusting screw 52 passes through the side guide rail 50 and is threadedly connected to the side guide rail 50. When the second adjusting screw 52 is rotated, the side guide rail 50 can be driven to move smoothly in a direction toward or away from the main guide rail 30, thereby adjusting the gap between the side wear-resistant plate 51 and the second side surface 32 of the main guide rail 30, realizing all-round adjustment of the main gap and side gap between the slider 10 and the guide rail seat 20.

[0025] In a preferred embodiment, during long-term operation of the molding machine, the slider 10 and the main guide rail 30 will experience natural wear due to continuous relative movement, and this wear will gradually intensify with increasing usage time, resulting in a gap between the main wear-resistant plate 12 and the main guide rail 30, affecting processing accuracy. At this time, it is necessary to adjust the wedge 40 to push the main guide rail 30 towards the slider 10 to compensate for the wear and ensure that the main guide rail 30 and the main wear-resistant plate 12 always maintain a tight fit. Based on this practical usage requirement, during the normal maintenance cycle of the equipment, the adjustment and movement direction of the wedge 40 is always towards the first mounting plate 22. Therefore, we have further improved the structure of the positioning protrusion 42 and the positioning groove 33 to adapt to the requirements of precise positioning and stable locking under a single adjustment direction.

[0026] Reference Figure 4The positioning protrusion 42 has a quarter-spherical structure and is integrally formed with a first arc-shaped surface 421 and a first limiting surface 422 perpendicular to the wedge-shaped mating surface of the wedge block 40. The first arc-shaped surface 421 faces the first mounting plate 22. Correspondingly, the positioning groove 33 is provided with a second arc-shaped surface 331 and a second limiting surface 332. The second limiting surface 332 is perpendicular to the first side surface 31 of the main guide rail 30. When the positioning protrusion 42 is embedded in the positioning groove 33, the first limiting surface 422 and the second limiting surface 332 abut tightly, which can effectively restrict the wedge block 40 from moving relative to the main guide rail 30 in a direction away from the first mounting plate 22.

[0027] In one embodiment, refer to Figure 5 The bottom of the positioning protrusion 42 is integrally formed with a sliding rod 45, which is perpendicular to the wedge-shaped mating surface of the wedge block 40. The wedge-shaped mating surface of the wedge block 40 is provided with a sequentially connected receiving groove 43 and a guide groove 44. The size of the receiving groove 43 is adapted to the positioning protrusion 42 and is used for temporary accommodation during the sliding of the positioning protrusion 42. The sliding rod 45 slides through the guide groove 44, and a spring 46 is provided in the guide groove 44. One end of the spring 46 is connected to the inner wall of the guide groove 44, and the other end abuts against the end of the sliding rod 45. The spring 46 is always in a compressed state, causing the positioning protrusion 42 to tend to protrude out of the receiving groove 43.

[0028] During the adjustment process, when the wedge 40 moves relative to the main guide rail 30, the first arc-shaped surface 421 of the positioning protrusion 42 contacts and is subjected to force with the second arc-shaped surface 331 of the positioning groove 33, forcing the spring 46 to compress further. The positioning protrusion 42 retracts into the receiving groove 43. When it moves to the next positioning groove 33, the spring 46 resets and pushes the positioning protrusion 42 into the positioning groove 43, thereby greatly reducing the friction and wear between the positioning protrusion 42 and the first side surface 31 of the main guide rail 30, which helps to extend the service life of the equipment.

[0029] When using this wedge-based molding machine slider and guide rail seat gap quantitative adjustment structure: The first side 31 of the main guide rail 30 is tightly fitted with the wedge-shaped mating surface of the wedge block 40. Under the elastic clamping force of the spring 46, the positioning protrusion 42 is embedded in the initial positioning groove 33 of the first side 31 of the main guide rail 30. At this time, the first limiting surface 422 and the second limiting surface 332 abut against each other to achieve the initial positioning of the wedge block 40. The main wear-resistant plate 12 is fitted with the surface of the main guide rail 30, the side wear-resistant plate 51 is fitted with the second side 32 of the main guide rail 30, and the slider 10 and the guide rail seat 20 are in a preset mating gap to meet the initial operation requirements of the molding machine.

[0030] As the molding machine operates for a long time, the slider 10 and the main guide rail 30 continuously move relative to each other, and the surfaces of the main wear plate 12 and the main guide rail 30 gradually wear down, resulting in gaps between them and a decrease in processing accuracy. At this time, it is necessary to compensate for the wear by adjusting the wedge block 40. The operator rotates the first adjusting screw 41, and the wedge block 40 is driven to move smoothly towards the first mounting plate 22 by means of thread transmission. When the wedge block 40 moves, the first arc-shaped surface 421 of the positioning protrusion 42 contacts the second arc-shaped surface 331 of the current positioning groove 33 and is subjected to a squeezing force, which forces the spring 46 to compress further. The positioning protrusion 42 retracts into the receiving groove 43 and slides synchronously with the wedge block 40 along the first side surface 31. When the wedge block 40 moves to the next positioning groove 33 position, the spring 46 releases its elastic potential energy to reset, pushes the positioning protrusion 42 out of the receiving groove 43 and embeds it into the positioning groove 33. The first limiting surface 422 and the corresponding second limiting surface 332 abut and lock again, completing one quantitative adjustment. After each switching of a positioning slot 33, the wedge block 40 pushes the main guide rail 30 to rise by a preset step amount towards the slider 10 via the inclined plane transmission, precisely compensating for the gap caused by wear, so that the main wear-resistant plate 12 and the main guide rail 30 are tightly fitted again. If the wear is large, the above operation can be repeated to achieve multi-step quantitative adjustment by switching the positioning slot 33 multiple times until the ideal fit gap is restored.

[0031] After the main clearance adjustment is completed, if a gap appears between the side wear-resistant plate 51 and the second side surface 32 of the main guide rail 30 due to wear, the second adjusting screw 52 can be rotated; the side guide rail 50 is driven to move in the direction toward the main guide rail 30 through the threaded transmission, and the side guide rail 50 drives the side wear-resistant plate 51 to move synchronously until the side wear-resistant plate 51 and the second side surface 32 of the main guide rail 30 are in contact, thus completing the precise correction of the side clearance.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wedge-based molding machine slider and guide rail seat clearance quantitative adjustment structure, comprising a slidingly fitted guide rail seat (20) and a slider (10), wherein the end face of the guide rail seat (20) is provided with a first mounting plate (22), the first mounting plate (22) is provided with a main guide rail (30), and the slider (10) is provided with a main wear-resistant plate (12) on the side facing the main guide rail (30), characterized in that, A wedge (40) is provided between the end face of the main guide rail (30) and the guide rail seat (20). A first adjusting screw (41) is rotatably connected to the first mounting plate (22). The end of the first adjusting screw (41) is inserted into the wedge (40) and threadedly connected to the wedge (40). The first side (31) of the main guide rail (30) away from the slider (10) is wedge-shapedly engaged with the wedge (40). The first side (31) is provided with a plurality of arc-shaped positioning grooves (33) along the direction close to the first mounting plate (22). The wedge (40) is provided with a corresponding arc-shaped positioning protrusion (42). The positioning protrusion (42) is concave-convexly engaged with the positioning groove (33).

2. The quantitative adjustment structure for the gap between the slider and the guide rail as described in claim 1, characterized in that, The positioning protrusion (42) has a 1 / 4 spherical structure. The positioning protrusion (42) has a first arc-shaped surface (421) and a first limiting surface (422) perpendicular to the surface of the wedge (40). The first arc-shaped surface (421) faces the first mounting plate (22). The positioning groove (33) has a corresponding second arc-shaped surface (331) and a second limiting surface (332) perpendicular to the first side surface (31). The first limiting surface (422) is used to abut against the second limiting surface (332) to limit the wedge (40).

3. The quantitative adjustment structure for the gap between the slider and the guide rail as described in claim 1 or 2, characterized in that, The positioning protrusion (42) is provided with a sliding rod (45) perpendicular to the surface of the wedge (40). The wedge (40) is provided with a receiving groove (43) and a guide groove (44) connected in sequence. The receiving groove (43) is used to receive the positioning protrusion (42). The sliding rod (45) slides through the guide groove (44). A spring (46) is provided in the guide groove (44). One end of the spring (46) abuts against the inner wall of the guide groove (44), and the other end abuts against the end of the sliding rod (45).

4. The quantitative adjustment structure for the gap between the slider and the guide rail as described in claim 1, characterized in that, The slider (10) is provided with a second mounting plate (11), and the second mounting plate (11) is provided with a side guide rail (50). The side guide rail (50) is provided with a side wear-resistant plate (51) on the side facing the main guide rail (30). The second mounting plate (11) is provided with a second adjusting screw (52) rotatably connected to it. The end of the second adjusting screw (52) passes through the side guide rail (50) and is threadedly connected to the side guide rail (50). The second adjusting screw (52) is used to adjust the gap between the side wear-resistant plate (51) and the main guide rail (30).

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