A high-speed press with a transmission device built into a slide

Abstract

The present invention discloses a high-speed press in the field of presses, in which a transmission device is built into a slider. The press comprises a machine body, wherein the machine body is provided with sliders and a workbench correspondingly distributed up and down, wherein the machine body is provided with a plurality of vertical lifting guide rails corresponding to the slider, wherein the machine body is provided with a transmission mechanism corresponding to the slider, wherein the transmission mechanism comprises a transmission shaft rotatably arranged horizontally on the machine body, wherein one end of the transmission shaft is transmission-connected to a rotary drive assembly, wherein the transmission shaft passes through the slider along the width direction of the slider, wherein at least one small eccentric sleeve is sleeved on the transmission shaft, wherein the outer periphery of the small eccentric sleeve is provided with a large eccentric sleeve through an inner copper sleeve, wherein the outer periphery of the large eccentric sleeve is rotatably mounted on the slider through an outer copper sleeve, wherein the outer copper sleeve corresponding to the large eccentric sleeve on the slider is provided with a mounting hole, wherein the outer copper sleeve is fitted in the mounting hole. The high-speed press of the present invention reduces the height of the machine tool and is suitable for workshops with low factory buildings.

Description

Technical Field

[0001] The invention belongs to the field of presses, and in particular relates to a high-speed press with a transmission device built into a slide. Background Art

[0002] In the prior art, there is a dynamic and static press, whose patent application number is: 201720389748.4; application date: 2017.04.14; its structure includes a machine body, a crankshaft and a slider, two connecting rod journals are symmetrically provided on the crankshaft, the two connecting rod journals are respectively covered with connecting rod copper sleeves, and the connecting rod copper sleeves are respectively hinged with force-applying connecting rods, the lower ends of the two force-applying connecting rods are respectively hinged to the upper ends of the guide pillars, the guide pillars are respectively located in the guide seats, the lower ends of the guide pillars are respectively connected to the ear plates, and the slider is connected below the ear plates; support journals are respectively provided on the left and right sides of the two connecting rod journals, and the support journals are respectively covered with supporting copper sleeves, and the supporting copper sleeves are located in the crankshaft support seats, and the crankshaft support seats are respectively fixed on the machine body, one end of the crankshaft extends outward and is installed with a flywheel, and the flywheel is connected to the main motor in a transmission manner; a clutch is installed on the outside of the flywheel to control the flywheel to drive the crankshaft. The press drives the connecting rod up and down through the crankshaft, thereby driving the slider to move up and down reciprocatingly, and the upper die realizes repeated stamping of the workpiece on the workbench. However, its disadvantage is that the crankshaft, connecting rod, and slider are arranged in sequence from top to bottom. This layout requires the workshop to have sufficient height to place the press. It is not suitable for shorter factories and stamping production operations cannot be carried out in shorter factories. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-speed press with a transmission device built into the slider. By installing the transmission shaft and the eccentric sleeve inside the slider, compared with the traditional press, direct connecting rod transmission is achieved, the front support part of the machine tool is eliminated, and the height of the machine tool can be greatly reduced, which is suitable for workshops with low factory building heights.

[0004] The object of the present invention is achieved as follows: A high-speed press with a transmission device built into a slider comprises a body, wherein the body is provided with sliders and workbenches correspondingly distributed up and down, a plurality of vertical lifting guide rails are provided on the body corresponding to the slider, a transmission mechanism is provided on the body corresponding to the slider, the transmission mechanism comprises a transmission shaft rotatably arranged horizontally on the body, one end of the transmission shaft is connected to the rotary drive assembly for transmission, the transmission shaft passes through the slider along the width direction of the slider, at least one small eccentric sleeve is sleeved on the transmission shaft, a large eccentric sleeve is provided on the outer periphery of the small eccentric sleeve through an inner copper sleeve, the outer periphery of the large eccentric sleeve is rotatably mounted on the slider through an outer copper sleeve, a mounting hole is provided on the outer copper sleeve corresponding to the large eccentric sleeve on the slider, and the outer copper sleeve is mounted in the mounting hole.

[0005] When the present invention is working, the motor drives the transmission shaft to rotate, the transmission shaft drives the small eccentric sleeve to rotate, the small eccentric sleeve drives the large eccentric sleeve to rotate eccentrically through the inner copper sleeve, the large eccentric sleeve in the mounting hole drives the slider to make up and down reciprocating motion on the lifting guide rail, and the upper template on the lower side of the slider drives the upper mold to make up and down reciprocating motion, performing continuous stamping action on the workpiece on the lower mold of the workbench. Compared with the existing technology, the beneficial effect of the present invention is that by installing the transmission shaft, small eccentric sleeve and large eccentric sleeve inside the slider, compared with the traditional press, direct connecting rod-free transmission is achieved, eliminating the front support part of the machine tool, and the transmission mechanism is built into the slider, which can greatly reduce the height of the machine tool and save space. The present invention is suitable for workshops with low factory building heights.

[0006] As a further improvement to the present invention, the slider has a rectangular horizontal cross-section, the slider's length corresponds to the length of the machine body, and the slider's width corresponds to the width of the machine body. Lifting guide rails are cooperatively arranged around the slider, and the slider and workbench are respectively arranged at the upper and lower portions of the machine body. A drive shaft passes through the slider along its width, facilitating the drive shaft's movement of the slider via the small and large eccentric sleeves, which is more labor-efficient than driving along the slider's length.

[0007] As a further improvement to the present invention, the fuselage is provided with bearing seats on both left and right sides of the slider in the width direction. A drive shaft is rotatably mounted on the two bearing seats via two bearings. One end of the drive shaft passes through the corresponding bearing seat and extends outward. The rotary drive assembly includes a flywheel mounted on the protruding end of the drive shaft, which is connected to a drive wheel at the output end of the drive motor at the top of the fuselage via a transmission belt. The two support points of the drive shaft are distributed on both sides of the slider, thereby improving the overall stability of the fuselage when the slider moves up and down, and further stabilizing the center of gravity of the fuselage.

[0008] In order to make the small eccentric sleeve and the large eccentric sleeve better balanced during rotation, and reduce weight and save energy, the eccentric distance of the small eccentric sleeve relative to the transmission shaft is M, the small eccentric sleeve coincides with the symmetry bisector of the transmission shaft, and the small eccentric sleeve is provided with two waist-shaped balancing weight grooves one symmetrically distributed on the left and right, and the balancing weight groove one runs through the small eccentric sleeve along the length direction; the eccentric distance of the large eccentric sleeve relative to the small eccentric sleeve is N, the symmetry bisector two of the large eccentric sleeve and the symmetry bisector one of the small eccentric sleeve are offset by a distance t, and the large eccentric sleeve is correspondingly provided with a waist-shaped balancing weight groove two, and the balancing weight groove two runs through the large eccentric sleeve along the length direction, M / N=0.5, t / M≤0.29. t can be 0, M / N=0.5, t / M≤0.29 to avoid the self-locking of the large and small eccentric sleeves during the rotation process. The second symmetry bisector of the large eccentric sleeve is staggered with the first symmetry bisector of the small eccentric sleeve, so that when the slider drops to the lowest position to punch the workpiece, the punching force is avoided from punching directly downward against the workpiece, and the workpiece is punched more smoothly by the downward component of force.

[0009] As a further improvement of the present invention, the small eccentric sleeve is mounted on the transmission shaft via a flat key, a keyway is provided on the side of the transmission shaft corresponding to the flat key, an outward end face of the small eccentric sleeve abuts against the inner wall of the side face of the keyway, an annular side pressure cap is provided on the outer periphery of the transmission shaft, the inner periphery of the annular side pressure cap is embedded in the transmission shaft, the side pressure cap abuts against the other end face of the small eccentric sleeve, an outer positioning step 1 is provided on the outward end of the small eccentric sleeve, an outer positioning step 2 is provided on the outward end of the inner copper sleeve, the inner copper sleeve abuts against the outer positioning step 1, and the inner end face of the outer positioning step 2 abuts against the large eccentric sleeve; annular limit baffles are provided on the left and right sides of the mounting hole of the slider, the two limit baffles are respectively provided corresponding to the left and right end faces of the large eccentric sleeve. The small eccentric sleeve is positioned by the side pressure cap, the large eccentric sleeve is positioned by the limit baffle, and the outer positioning step 2 of the inner copper sleeve is limited by the outer positioning step 1 and the large eccentric sleeve.

[0010] As a further improvement of the present invention, the transmission shaft is provided with two symmetrically distributed small eccentric sleeves, with a side pressure cover located at opposite ends of the two small eccentric sleeves. The slider has two mounting holes for the large eccentric sleeves corresponding to the outer periphery of the two small eccentric sleeves. The bottom surface of the slider has a larger width dimension, and two sets of large and small eccentric sleeves are designed inside the slider to ensure transmission stability.

[0011] As a further improvement of the present invention, the mounting holes are symmetrically distributed along the width direction of the slider, two annular mounting sleeves spaced apart from each other are provided inside the slider, and the mounting holes are located in the corresponding mounting sleeves.

[0012] In order to reduce vibration when the press is running, a horizontal upper template is provided on the lower side of the slider, a horizontal lower template is provided on the workbench, and a plurality of shock-absorbing pads are provided on the bottom of the machine body.

[0013] As a further improvement of the present invention, four vertical locking rods are mounted on the machine body, forming a rectangular shape. The press stroke is 110 mm, the die height is 430 mm, and the length and width of the slide bottom are 1200 mm and 400 mm, respectively. The machine body is locked at the top and bottom by the four rods to ensure the rigidity of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of the present invention.

[0015] Figure 2 It is the front view of the present invention.

[0016] Figure 3 for Figure 1 DD section view.

[0017] Figure 4 This is a structural diagram of the large eccentric sleeve.

[0018] Figure 5 It is a structural diagram of the small eccentric sleeve.

[0019] Figure 6 for Figure 1 CC section view.

[0020] Figure 7 for Figure 6 A partial enlarged view of .

[0021] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0022] Figure 9 Schematic diagram of the slider structure.

[0023] Figure 10 for Figure 9 EE cross-sectional view.

[0024] Among them, 1 fuselage, 2 slider, 2a mounting sleeve, 3 workbench, 4 lifting guide rail, 5 transmission shaft, 6 small eccentric sleeve, 6a outer positioning step one, 7 inner copper sleeve, 7a outer positioning step two, 8 large eccentric sleeve, 9 outer copper sleeve, 10 mounting hole, 11 bearing seat, 12 bearing, 13 flywheel, M the eccentricity of the small eccentric sleeve relative to the transmission shaft, 14 symmetry bisector one, 15 balancing weight slot one, N the eccentricity of the large eccentric sleeve relative to the small eccentric sleeve, 16 symmetry bisector two, t the distance between the symmetry bisector two of the large eccentric sleeve and the symmetry bisector one of the small eccentric sleeve, 17 balancing weight slot two, 18 flat key, 19 side pressure cover, 20 limit baffle, 21 shock absorber pad, 22 locking rod. DETAILED DESCRIPTION

[0025] like Figure 1-10The figure shows a high-speed press with a transmission device built into a slider, comprising a body 1, a slider 2 and a workbench 3 correspondingly distributed up and down are provided on the body 1, a plurality of vertical lifting guide rails 4 are provided on the body 1 corresponding to the slider 2, and a transmission mechanism is provided on the body 1 corresponding to the slider 2. The transmission mechanism includes a transmission shaft 5 rotatably arranged horizontally on the body 1, one end of the transmission shaft 5 is connected to the rotary drive assembly for transmission, the transmission shaft 5 passes through the slider 2 along the width direction of the slider 2, and is provided with at least one small eccentric sleeve 6 on the transmission shaft 5, and two small eccentric sleeves 6 symmetrically distributed on the left and right are provided on the transmission shaft 5, and the side pressure cover 19 is located at the opposite end of the two small eccentric sleeves 6, and the large eccentric sleeve 8 corresponding to the outer periphery of the two small eccentric sleeves 6 on the slider 2 is provided with two mounting holes 10; the width direction dimension of the bottom surface of the slider 2 is larger, and two groups of large eccentric sleeves 8 and small eccentric sleeves 6 are designed inside the slider 2. The design of two groups of eccentric sleeves ensures the stability of the transmission. The mounting holes 10 are symmetrically distributed along the width direction of the slider 2. Two annular mounting sleeves 2a spaced apart from each other are provided inside the slider 2, and the mounting holes 10 are located in the corresponding mounting sleeves 2a; the outer periphery of the small eccentric sleeve 6 is provided with a large eccentric sleeve 8 through the inner copper sleeve 7, and the outer periphery of the large eccentric sleeve 8 is rotatably mounted on the slider 2 through the outer copper sleeve 9. The outer copper sleeve 9 corresponding to the large eccentric sleeve 8 on the slider 2 is provided with a mounting hole 10, and the outer copper sleeve 9 is mounted in the mounting hole 10.

[0026] Slider 2 has a rectangular horizontal cross-section. Its length corresponds to the length of body 1, and its width corresponds to the width of body 1. Lifting guide rails 4 are arranged around slider 2. Slider 2 and workbench 3 are located at the upper and lower portions of body 1, respectively. A drive shaft 5 passes through slider 2 along its width, allowing it to drive slider 2 via small and large eccentric sleeves 6 and 8, saving effort compared to driving along its length.

[0027] Bearing blocks 11 are located on both sides of the chassis 1, widthwise of the slider 2. A drive shaft 5 is rotatably mounted on each of these blocks via two bearings 12. One end of the drive shaft 5 extends outward through the corresponding bearing block 11. The rotary drive assembly includes a flywheel 13 mounted on the protruding end of the drive shaft 5. This flywheel 13 is connected to a drive pulley at the output end of the drive motor at the top of the chassis 1 via a transmission belt. The two support points of the drive shaft 5 are located on either side of the slider 2, ensuring greater overall stability and a more stable center of gravity for the chassis 1 as the slider 2 moves up and down.

[0028] In order to make the small eccentric sleeve 6 and the large eccentric sleeve 8 better balanced during rotation, reduce weight and save energy, the eccentric distance M of the small eccentric sleeve relative to the transmission shaft, the symmetry bisector 14 of the small eccentric sleeve 6 and the transmission shaft 5 coincide, and the small eccentric sleeve 6 is provided with two waist-shaped balancing weight grooves 15 symmetrically distributed on the left and right, and the balancing weight groove 15 is arranged along the length direction through the small eccentric sleeve 6; the eccentric distance N of the large eccentric sleeve relative to the small eccentric sleeve, the symmetry bisector 2 of the large eccentric sleeve and the symmetry bisector 1 of the small eccentric sleeve are staggered by a distance t, and the large eccentric sleeve 8 is correspondingly provided with a waist-shaped balancing weight groove 2 17, and the balancing weight groove 2 17 is arranged along the length direction through the large eccentric sleeve 8, M / N=0.5, t / M≤0.29. t can be 0, M / N=0.5, t / M≤0.29 to avoid the self-locking of the large and small eccentric sleeves 6 during the rotation process. The symmetry bisector 2 16 of the large eccentric sleeve 8 is staggered with the symmetry bisector 1 14 of the small eccentric sleeve 6, so that when the slider 2 drops to the lowest position to punch the workpiece, the punching force is avoided from punching directly toward the workpiece vertically downward, and the workpiece is punched more smoothly by the downward component of force. The small eccentric sleeve 6 is installed on the transmission shaft 5 through a flat key 18. A keyway is provided on the side of the transmission shaft 5 corresponding to the flat key 18. The outward end surface of the small eccentric sleeve 6 corresponds to the side inner wall of the keyway. The outer periphery of the transmission shaft 5 is provided with an annular side pressure cover 19. The inner periphery of the annular side pressure cover 19 is embedded in the transmission shaft 5, and the side pressure cover 19 is against the other end surface of the small eccentric sleeve 6. The outward end of the small eccentric sleeve 6 is provided with an outer positioning step 1 6a, and the outward end of the inner copper sleeve 7 is provided with an outer positioning step 2 7a. The inner copper sleeve 7 is set against the outer positioning step 1 6a, and the inward end surface of the outer positioning step 2 7a is set against the large eccentric sleeve 8; annular limit baffles 20 are provided on the left and right sides of the mounting hole 10 on the slider 2, and the two limit baffles 20 are respectively set corresponding to the left and right end surfaces of the large eccentric sleeve 8. The small eccentric sleeve 6 is positioned by the side pressure cover 19 , the large eccentric sleeve 8 is positioned by the limiting baffle 20 , and the outer positioning step 2 7 a of the inner copper sleeve 7 is limited by the outer positioning step 1 6 a and the large eccentric sleeve 8 .

[0029] To reduce vibration during press operation, a horizontal upper platen is installed beneath the slide 2, a horizontal lower platen is mounted on the worktable 3, and several shock-absorbing pads 21 are installed at the bottom of the machine body 1. Four vertical locking rods 22 are mounted on the machine body 1, forming a rectangular shape. The press has a stroke of 110 mm and a die height of 430 mm. The length and width of the bottom of the slide 2 are 1200 mm and 400 mm, respectively. The four tie rods lock the upper and lower parts of the machine body 1 to ensure machine rigidity.

[0030] When the present invention is in operation, the motor drives the transmission shaft 5 to rotate, the transmission shaft 5 drives the small eccentric sleeve 6 to rotate, the small eccentric sleeve 6 drives the large eccentric sleeve 8 to rotate eccentrically via the inner copper sleeve 7, and the large eccentric sleeve 8 in the mounting hole 10 drives the slider 2 to make up and down reciprocating motion on the lifting guide rail 4. The upper mold plate on the lower side of the slider 2 drives the upper mold to make up and down reciprocating motion, and continuously stamps the workpiece on the lower mold of the workbench 3. The advantage of the present invention is that by installing the transmission shaft 5, the small eccentric sleeve 6 and the large eccentric sleeve 8 inside the slider 2, compared with traditional presses, direct connecting rod-free transmission is achieved, eliminating the front support part of the machine tool. By integrating the transmission mechanism into the slider 2, the height of the machine tool can be greatly reduced, saving space. The present invention is suitable for workshops with low factory buildings.

[0031] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some of the technical features therein according to the disclosed technical content without creative labor, and these substitutions and modifications are all within the protection scope of the present invention.

Claims

1. A high-speed press with a transmission device built into a slide, comprising a body, characterized in that: The machine body is provided with sliders and workbenches distributed correspondingly in the upper and lower parts, and a number of vertical lifting guide rails are provided corresponding to the sliders on the machine body, and a transmission mechanism is provided corresponding to the sliders on the machine body, and the transmission mechanism includes a transmission shaft rotatably arranged horizontally on the machine body, one end of the transmission shaft is connected to the rotation drive assembly for transmission, and the transmission shaft passes through the slider along the width direction of the slider, and at least one small eccentric sleeve is provided on the transmission shaft, and a large eccentric sleeve is provided on the outer periphery of the small eccentric sleeve through an inner copper sleeve, and the outer periphery of the large eccentric sleeve is rotatably mounted on the slider through an outer copper sleeve, and a mounting hole is provided on the outer copper sleeve corresponding to the large eccentric sleeve on the slider, and the outer copper sleeve is mounted in the mounting hole; the cross-section of the slider in the horizontal direction is a rectangle, the length direction of the slider is arranged corresponding to the length direction of the fuselage, and the width direction of the slider is arranged corresponding to the width direction of the fuselage, and each lifting guide rail is arranged in cooperation The slider and the workbench are respectively arranged on the upper and lower parts of the fuselage around the slider; bearing seats are provided on the left and right sides of the fuselage in the width direction of the slider, and the transmission shaft is rotatably mounted on the two bearing seats through two bearings, and one end of the transmission shaft passes through the corresponding bearing seat and extends outward, and the rotation drive assembly includes a flywheel installed at the protruding end of the transmission shaft, and the flywheel is connected to the transmission wheel at the output end of the driving motor on the top of the fuselage through a transmission belt; the eccentricity of the small eccentric sleeve relative to the transmission shaft is M, and the small eccentric sleeve coincides with the symmetry bisector 1 of the transmission shaft, and the small eccentric sleeve is provided with two waist-shaped balancing weight grooves 1 symmetrically distributed on the left and right, and the balancing weight groove 1 passes through the small eccentric sleeve along the length direction; the eccentricity of the large eccentric sleeve relative to the small eccentric sleeve is N, and the distance between the symmetry bisector 2 of the large eccentric sleeve and the symmetry bisector 1 of the small eccentric sleeve is t, The large eccentric sleeve is provided with a second waist-shaped balancing weight groove, which runs through the large eccentric sleeve along the length direction, M / N=0.5, t / M≤0.29; The small eccentric sleeve is installed on the transmission shaft through a flat key, and a keyway is provided on the side of the transmission shaft corresponding to the flat key. The outward end of the small eccentric sleeve is corresponding to the inner wall of the side of the keyway. The outer periphery of the transmission shaft is provided with an annular side pressure cover, and the inner periphery of the annular side pressure cover is embedded in the transmission shaft. The side pressure cover is against the other end face of the small eccentric sleeve. The outward end of the small eccentric sleeve is provided with an outer positioning step 1, and the outward end of the inner copper sleeve is provided with an outer positioning step 2. The inner copper sleeve is arranged against the outer positioning step 1, and the inward end face of the outer positioning step 2 is arranged against the large eccentric sleeve; annular limit baffles are provided on the left and right sides of the mounting hole of the slider, and the two limit baffles are respectively The large eccentric sleeves are installed on both ends of the large eccentric sleeve. The drive shaft is equipped with two symmetrically distributed small eccentric sleeves, with the side pressure cover located at the opposite end of the two small eccentric sleeves. The slider has two mounting holes for the large eccentric sleeve corresponding to the outer periphery of the two small eccentric sleeves. The mounting holes are symmetrically distributed along the width of the slider. Two annular mounting sleeves are installed inside the slider, with the mounting holes located in the corresponding mounting sleeves. Four vertical locking rods are installed on the body, forming a rectangular shape. The press has a stroke of 110mm and a die height of 430mm. The length and width of the slider bottom are 1200mm and 400mm respectively.

2. A high-speed press with a transmission device built into a slide according to claim 1, characterized in that: A horizontal upper template is arranged on the lower side of the slider, a horizontal lower template is arranged on the workbench, and a plurality of shock-absorbing pads are arranged on the bottom of the fuselage.

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