Anti-unbalance-loading adjustable punching machine

Abstract

The utility model discloses an anti-unbalance-load adjustable punching machine which comprises a machine frame, a sliding block, a crankshaft and a plurality of sets of connecting rod assemblies, a turbine box assembly is arranged at the lower end of each set of connecting rod assembly, and the turbine box assemblies are fixed to the upper end of the sliding block, and is characterized in that the left set of connecting rod assembly and the right set of connecting rod assembly located on the outermost side are symmetrically arranged along the center line of the machine frame; the number of the connecting rod assemblies located in the middle is at least one, and a position adjusting mechanism is arranged between the turbine box assembly located at the lower end of the connecting rod assembly located in the middle and the sliding block. The multi-station punching machine has the advantages that the left-right position of the connecting rod assembly (namely the force application point position) located in the middle can be adjusted on the punching machine, so that the punching capacity of the feeding side and the discharging side of the punching machine can be adjusted, namely the unbalance loading resisting capacity can be adjusted, and the different unbalance loading resisting requirements of the multi-station punching machine can be met.

Description

Technical Field

[0001] This utility model relates to the field of multi-station punch press technology, and in particular to a punch press with adjustable anti-eccentric load. Background Technology

[0002] A multi-station punch press is a specialized punch press that can form parts that cannot be stretched into shape in a single operation. Large-scale automated production lines for multi-station punch presses integrate the highest levels of current forging technology and typically consist of an automatic destacking system, multi-station punch presses, a three-coordinate conveying system, and a line tail conveyor. With the increasing application of large-scale multi-station punch presses in the automotive industry, the demands for load capacity and stamping performance are rising. The design of heavy-duty multi-station punch presses to withstand eccentric loads is a key focus for various manufacturers, and with the increasing demand in the new energy vehicle market, eccentric load requirements vary. However, current eccentric load-resistance punch presses (i.e., punch presses with unequal stamping capacities on the infeed and outfeed sides) have fixed eccentric load resistance or capacity after design, resulting in poor adaptability and an inability to meet diverse eccentric load requirements. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a punch press with adjustable anti-eccentric load capacity, which can meet different anti-eccentric load requirements.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a punch press with adjustable anti-eccentric load, including a frame, a slide block, a crankshaft and multiple sets of connecting rod assemblies. Each set of connecting rod assemblies is provided with a turbine housing assembly at its lower end. The turbine housing assembly is fixed to the upper end of the slide block. The two outermost sets of connecting rod assemblies are symmetrically arranged along the center line of the frame. There is at least one set of connecting rod assemblies in the middle. A position adjustment mechanism is provided between the turbine housing assembly at the lower end of the middle connecting rod assembly and the slide block.

[0005] Furthermore, the position adjustment mechanism includes adjusting screws disposed on both sides of the housing of the turbine housing assembly, a mounting base fixedly disposed on the upper end of the slider, the adjusting screws being threadedly connected to the mounting base, a locking nut disposed on the adjusting screws, the inner end of the adjusting screws being rotatably connected to the housing, the housing being horizontally slidingly engaged with the upper end of the slider, a spacing adjustment mechanism being disposed between the worm and the worm connecting shaft in the turbine housing assembly, and the upper end of the connecting rod assembly being horizontally slidingly engaged with the crankshaft and capable of relative rotation.

[0006] Furthermore, the spacing adjustment mechanism includes a connecting collar, with the worm and the worm connecting shaft respectively inserted into both ends of the connecting collar. There is a gap between the worm and the worm connecting shaft within the connecting collar, and the worm and the connecting collar, as well as the worm connecting shaft and the connecting collar, are positioned and fixed by flat keys and screws.

[0007] Furthermore, there are four adjusting screws, which are distributed in pairs on both sides of the housing.

[0008] Furthermore, a guide block is fixed at the lower end of the housing, and a guide groove is provided at the upper end of the slider. The guide block and the guide groove slide horizontally together. The cooperation between the guide block and the guide groove not only plays a positioning role, but also allows the guide block and the guide groove to bear the front and rear lateral forces generated by the deflection of the connecting rod assembly during punching, which greatly reduces the shear force on the locking screws on the housing.

[0009] Furthermore, the upper end of the slider is provided with a locking groove, and the housing is provided with a locking screw, which passes through the locking groove and is fixed to the slider.

[0010] Compared with the prior art, the advantage of this utility model is that because a position adjustment mechanism is provided between the turbine box assembly at the lower end of the connecting rod assembly in the middle and the slider, the left and right positions of the connecting rod assembly in the middle (i.e. the force application point position) on the punch press can be adjusted, thereby making the punching capacity of the feeding side and the discharge side of the punch press adjustable, that is, the anti-eccentric load capacity adjustable, so as to meet the different anti-eccentric load requirements of multi-station punch presses. Attached Figure Description

[0011] Figure 1 This is a front view of the present invention;

[0012] Figure 2 This is a top view of the position adjustment mechanism of this utility model;

[0013] Figure 3 for Figure 2 Enlarged diagram of point A in the middle. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0015] As shown in the figure, a punch press with adjustable anti-eccentric load includes a frame 1, a slide block 2, a crankshaft 3, and multiple sets of connecting rod assemblies 4. Each set of connecting rod assemblies 4 has a turbine housing assembly 5 at its lower end, which is fixed to the upper end of the slide block 2. The two outermost sets of connecting rod assemblies 4 are symmetrically arranged along the centerline of the frame 1. At least one set of connecting rod assemblies 4 is located in the middle. A position adjustment mechanism is provided between the turbine housing assembly 5 at the lower end of the middle connecting rod assembly 4 and the slide block 2. The upper end of the connecting rod assembly 4 is horizontally slidingly engaged with the crankshaft 3 and can rotate relative to it. The position adjustment mechanism includes four adjusting screws 6 arranged on both sides of the housing 51 of the turbine housing assembly 5, distributed in pairs on both sides of the housing 51. A mounting base 21 is fixedly provided on the upper end of the slide block 2. Rod 6 is threadedly connected to mounting base 21. A locking nut 61 is provided on adjusting screw 6. The inner end of adjusting screw 6 is rotatably connected to housing 51. A guide block (not shown in the figure) is fixed at the lower end of housing 51. A guide groove is provided at the upper end of slider 2. The guide block and guide groove slide together, so that housing 51 and the upper end of slider 2 achieve horizontal sliding cooperation. A gap adjustment mechanism is provided between worm 52 and worm connecting shaft 7 in turbine housing assembly 5. The gap adjustment mechanism includes connecting collar 8. Worm 52 and worm connecting shaft 7 are respectively inserted into the two ends of connecting collar 8. There is a gap section 81 between worm 52 and worm connecting shaft 7 in connecting collar 8. Worm 52 and connecting collar 8, and worm connecting shaft 7 and connecting collar 8 are positioned and fixed by flat keys and screws.

[0016] In the above embodiments, the turbine housing assembly 5 is an existing component in the punch press, installed at the lower end of the connecting rod assembly 4, and is used to adjust the height of the slide block 2 on the punch press, i.e., to adjust the die height; and for punch presses with multiple sets of connecting rod assemblies, the worm gear 52 in the turbine housing assembly 5 is coaxially fixed through the worm gear connecting shaft 7 to realize the synchronous linkage of the worm gear, which is also an existing component in the punch press.

[0017] In addition, an axial adjustment groove can be provided on the connecting collar 8. After the axial position between the worm 52 and the connecting collar 8, and between the worm connecting shaft 7 and the connecting collar 8 is adjusted, the screw passes through the adjustment groove and is fixed to the worm 52 or the worm connecting shaft 7, so that the connecting collar 8 is fixed to the worm 52 and the worm connecting shaft 7 respectively.

[0018] In order to make the turbine housing assembly 5 located in the middle more reliably fixed relative to the slider 2 after the position adjustment is completed, a locking groove 22 is provided at the upper end of the slider 2, and a locking screw 53 is provided on the housing 51. The locking screw 53 passes through the locking groove 22 and is fixed by a nut, so that the housing 51 and the slider 2 are fixed.

[0019] In the above embodiment, the process of adjusting the left and right positions of the connecting rod assembly 4 located in the middle through the position adjustment mechanism is as follows: loosen the locking screw 53 and the locking nut 61, and loosen the screw used to fix the worm 52 and the connecting collar 8. Then, rotate the adjusting screws 6 located on both sides of the housing 51 of the turbine housing assembly 5 to push the turbine housing assembly 5 to move to the left or right. The turbine housing assembly 5 drives the connecting rod assembly 4 connected to it to move synchronously until the position is adjusted to the correct position. Then, tighten the locking nut 61 and the locking screw 53 so that the housing 51 is fixed to the upper end of the slider 2, and tighten the screw so that the worm 52 is fixed to the connecting collar 8.

[0020] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. A punch press with adjustable anti-eccentric load, comprising a frame, a slide block, a crankshaft, and multiple sets of connecting rod assemblies, wherein a turbine housing assembly is provided at the lower end of each set of connecting rod assemblies, and the turbine housing assembly is fixed to the upper end of the slide block, characterized in that: The two outermost sets of left and right linkage assemblies are symmetrically arranged along the center line of the frame. There is at least one set of linkage assemblies in the middle, and a position adjustment mechanism is provided between the turbine box assembly at the lower end of the middle linkage assembly and the slider.

2. The punch press with adjustable anti-eccentric load as described in claim 1, characterized in that: The position adjustment mechanism includes adjusting screws disposed on both sides of the housing of the turbine housing assembly. A mounting base is fixedly disposed on the upper end of the slider. The adjusting screws are threadedly connected to the mounting base. A locking nut is disposed on the adjusting screws. The inner end of the adjusting screws is rotatably connected to the housing. The housing and the upper end of the slider are horizontally slidably engaged. A gap adjustment mechanism is disposed between the worm and the worm connecting shaft in the turbine housing assembly. The upper end of the connecting rod assembly is horizontally slidably engaged with the crankshaft and can rotate relative to it.

3. The punch press with adjustable anti-eccentric load as described in claim 2, characterized in that: The aforementioned spacing adjustment mechanism includes a connecting collar, with the worm and the worm connecting shaft respectively inserted into both ends of the connecting collar. There is a gap section between the worm and the worm connecting shaft within the connecting collar, and the worm and the connecting collar, as well as the worm connecting shaft and the connecting collar, are positioned and fixed by flat keys and screws.

4. The punch press with adjustable anti-eccentric load as described in claim 2, characterized in that: There are four adjusting screws, which are distributed in pairs on both sides of the housing.

5. A punch press with adjustable anti-eccentric load as described in claim 2, characterized in that: The lower end of the housing is fixed with a guide block, and the upper end of the slider is provided with a guide groove. The guide block and the guide groove slide horizontally together.

6. The punch press with adjustable anti-eccentric load as described in claim 2, characterized in that: The upper end of the slider is provided with a locking groove, and the housing is provided with a locking screw, which passes through the locking groove and is fixed to the slider.

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