Electric power press

Abstract

This utility model discloses an electric press, characterized by comprising a frame, a worktable, a wire winding and unwinding drive assembly, a positioning shaft assembly, and a stamping assembly. The frame has a top beam and columns located on both sides of the top beam. The left and right sides of the worktable are slidably fitted onto the two columns. The positioning shaft assembly includes a positioning shaft simultaneously inserted between the worktable and the columns, and a support shaft inserted into the columns and located below the worktable. The wire winding and unwinding drive assembly includes a winding wheel, a main pull rope, a secondary pull rope, and a guide wheel assembly. The winding wheel and the guide wheel assembly are both arranged on the frame. The starting ends of the main pull rope and the secondary pull rope are fixed to the winding wheel. The rope portions of the main pull rope and the secondary pull rope extend in the same direction along the arrangement of the guide wheel assembly and are connected to the worktable, so that the winding wheel drives the worktable to rise or fall when winding and unwinding the rope. This utility model features convenient operation and high safety.

Description

Technical Field

[0001] This utility model relates to the field of presses, and more particularly to an electric press for stamping automotive parts. Background Technology

[0002] An automotive repair press is a piece of equipment used for automotive repair and maintenance, mainly for stamping, riveting, stretching and other operations on automotive parts.

[0003] Currently, the main structure of an automotive parts press includes a frame, a worktable mounted on the frame for positioning automotive parts, and a hydraulic cylinder assembly mounted on the frame for processing the parts on the worktable. When different parts are positioned on the worktable, the height of the worktable needs to be adjusted due to the different sizes of the parts. In existing technology, users mainly use two methods to adjust the vertical position of the worktable. One method involves two workers moving the worktable up and down on the frame and then using a positioning pin to position the worktable. This method is time-consuming and labor-intensive. The other method uses a wire tensioner, which uses a winding wheel and a single steel wire to drive the wire rope. The rotation of the winding wheel causes the wire rope to be wound up, raising the worktable, or the wire rope to be unwound, lowering the worktable. While this method improves the convenience of moving the worktable up and down, if the wire rope breaks accidentally during actual lifting and lowering, the worktable may fall, easily causing equipment damage or personal injury. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an electric press that is convenient to operate and highly safe.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An electric press, characterized in that it includes a frame, a worktable, a wire take-up and unwinding drive assembly, a positioning shaft assembly, and a stamping assembly; The frame has a top beam and columns on both sides of the top beam, and the left and right sides of the workbench are slidably fitted onto the two columns. The positioning shaft assembly includes a positioning shaft that is simultaneously inserted between the worktable and the column, and a support shaft that is inserted on the column and located below the worktable. The winding and unwinding drive assembly includes a winding wheel, a main pull rope, an auxiliary pull rope, and a guide wheel assembly. The winding wheel and the guide wheel assembly are both arranged on the frame. The starting ends of the main pull rope and the auxiliary pull rope are fixed on the winding wheel. The rope portions of the main pull rope and the auxiliary pull rope extend in the same direction along the arrangement position of the guide wheel assembly and are connected to the worktable, so that the winding wheel drives the worktable to rise or fall when winding and unwinding the rope.

[0006] Preferably, the workbench includes a front plate, a rear plate, a connecting plate disposed between the front plate and the rear plate, and pads fixed to the top of the front plate and the rear plate. The left and right ends of the front panel and the left and right ends of the rear panel form assembly grooves, and the left and right assembly grooves respectively fit onto the two columns.

[0007] Preferably, the column has a plurality of first positioning holes arranged vertically, and the left and right ends of the front plate and the rear plate have second positioning holes that can mate with the first positioning holes. The positioning shaft is inserted into both the first positioning holes and the second positioning holes, and the support shaft is inserted into the first positioning hole. The two ends of the support shaft are located on the outside of the column to support the front plate and the rear plate.

[0008] Preferably, there are notches at the bottom of the left and right ends of the front and rear plates, and the notches correspond to the support shaft and are provided with rubber buffer pads.

[0009] Preferably, the guide wheel assembly includes a first guide wheel, a second guide wheel, a third guide wheel, and a fourth guide wheel. The first guide wheel and the second guide wheel are disposed on the upper and lower sides of one of the columns, and the fourth guide wheel and the third guide wheel are disposed on the upper and lower sides of the other column. The main pull rope and the auxiliary pull rope pass through the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel in sequence. The parts of the main pull rope and the auxiliary pull rope corresponding to the first guide wheel and the second guide wheel are connected to the connecting plate in the workbench. The ends of the main pull rope and the auxiliary pull rope are connected to the connecting plate in the workbench.

[0010] Preferably, the stamping assembly includes a hydraulic cylinder mounted on the top beam and an electric hydraulic pump unit mounted on the column. The electric hydraulic pump unit is connected to the hydraulic cylinder via an oil pipe, which drives the hydraulic cylinder to extend and retract.

[0011] Preferably, the main pull rope is in a taut state, and the auxiliary pull rope is in a slack state.

[0012] The advantages of this utility model are: 1. When the worktable is raised and lowered by the main pull rope and the auxiliary pull rope, even if the main pull rope breaks accidentally, the auxiliary pull rope will still bear the weight to prevent the worktable from falling. Secondly, a support shaft is set under the worktable. Even if both the main pull rope and the auxiliary pull rope break accidentally, the falling worktable will fall onto the support shaft, reducing the height of the worktable falling and improving the safety of use. 2. When the press is working, the support shaft can work with the positioning shaft to support the worktable and increase the load-bearing capacity. When the worktable is raised or lowered, the support shaft can prevent the worktable from falling.

[0013] 3. In stamping components, electric hydraulic pump sets are more convenient to operate compared to traditional manual pumps and foot pumps. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the electric press provided in this embodiment; Figure 2 This is an exploded view of the electric press provided in this embodiment; Figure 3 This is a schematic diagram of the winding reel, main pull rope, auxiliary pull rope, and line clamp provided in this embodiment; Figure 4 This is a schematic diagram of the wire clamp provided in this embodiment. Detailed Implementation

[0015] Combination Figures 1 to 4 The electric press of this utility model will be further described.

[0016] An electric press is characterized by comprising a frame 1, a worktable 2, a wire take-up and unwinding drive assembly 10, a positioning shaft assembly, and a stamping assembly 3.

[0017] The frame 1 has a top beam 11, columns 12 located on both sides of the top beam 11, and bottom beams 13 located at the bottom of the two columns 12. The left and right sides of the workbench 2 are slidably fitted onto the two columns 12.

[0018] The positioning shaft assembly includes a positioning shaft 41 that is simultaneously inserted between the worktable 2 and the column 12, and a support shaft 42 that is inserted on the column 12 and located below the worktable 2 to support the worktable 2.

[0019] The winding and unwinding drive assembly 10 includes a winding wheel 3, a main pull rope 5, a secondary pull rope 6, and a guide wheel assembly. The winding wheel 3 and the guide wheel assembly are both arranged on the frame 1. The starting ends of the main pull rope 5 and the secondary pull rope 6 are fixed to the winding wheel 3. The rope portions of the main pull rope 5 and the secondary pull rope 6 extend in the same direction along the arrangement position of the guide wheel assembly and are connected to the worktable 2, so that the winding wheel 3 drives the worktable 2 to rise or fall when winding and unwinding the rope.

[0020] Specifically, the workbench 2 includes a front plate 22, a rear plate 21, multiple connecting plates 24 welded between the front plate 22 and the rear plate 21, and pads 25 fixed to the top of the front plate 22 and the rear plate 21. The pads 25 have workpiece positioning grooves for placing and positioning workpieces.

[0021] The left and right ends of the front plate 22 and the left and right ends of the rear plate 21 form an assembly groove 23. The two assembly grooves 23 on the left and right sides respectively fit on the two columns 12 to achieve front and rear positioning. At the same time, the connecting plate 24 between the front plate 22 and the rear plate 21 can play the role of left and right limit, improving the stability of the overall up and down movement of the worktable 2.

[0022] The column 12 has a plurality of first positioning holes 121 arranged vertically, with the same spacing between any two adjacent first positioning holes 121. The left and right ends of the front plate 22 and the rear plate 21 have second positioning holes 26 that can mate with the first positioning holes 121. The positioning shaft 41 is inserted into both the first positioning holes 121 and the second positioning holes 26. The support shaft 42 is inserted into the first positioning hole 121, with both ends of the support shaft 42 located on the outside of the column 12 for support of the front plate 22 and the rear plate 21.

[0023] To improve the stability of the positioning shaft 41 and the support shaft 42 when inserted into the first positioning hole 121 and the second positioning hole 26, elastic buckles 43 are provided on the positioning shaft 41 and the support shaft 42 to prevent the positioning shaft 41 and the support shaft 42 from accidentally axially disengaging.

[0024] There are notches 27 at the bottom of the left and right ends of the front plate 22 and the rear plate 21. The notches 27 correspond to the support shaft 42 and are provided with rubber buffer pads 28. When the front plate 22 and the rear plate 21 are supported on the support shaft 42 through the notches 27, the notches 27 can play a role in limiting the left and right movement; secondly, the rubber buffer pads 28 can play a role in shock absorption and protection.

[0025] The guide wheel assembly includes a first guide wheel 71, a second guide wheel 72, a third guide wheel 73, and a fourth guide wheel. The first guide wheel 71 and the second guide wheel 72 are disposed on the upper and lower sides of one of them, namely the left column 12, and the fourth guide wheel and the third guide wheel 73 are disposed on the upper and lower sides of the other, namely the right column 12.

[0026] The winding wheel 3 is fixedly mounted on the left column 12 by a mounting plate. The main pull rope 5 and the auxiliary pull rope 6 extend from the winding wheel 3, pass through the first guide wheel 71, go down through the second guide wheel 72, go right through the third guide wheel 73, and go up through the fourth guide wheel. The part of the main pull rope 5 and the auxiliary pull rope 6 corresponding to the part between the first guide wheel 71 and the second guide wheel 72 is connected to the connecting plate 24 on the left side of the workbench 2. The ends of the main pull rope 5 and the auxiliary pull rope 6 extend down after passing through the fourth guide wheel and are connected to the connecting plate 24 on the right side of the workbench 2.

[0027] The connecting plates 24 on the left and right sides of the workbench 2 are provided with connecting holes 241 for the main pull rope 5 and the auxiliary pull rope 6 to pass through. Cable clamps 8 are connected to the main pull rope 5 and the auxiliary pull rope 6 at the points between the first guide wheel 71 and the second guide wheel 72, and at their ends. The size of the cable clamps 8 is larger than the diameter of the connecting holes 241. When the positioning shaft 41 and the support shaft 42 are removed, the left and right connecting plates 24 of the workbench 2 can be hung on the two cable clamps 8, allowing the main pull rope 5 and the auxiliary pull rope 6 to lift the workbench 2 upwards through the cable clamps 8.

[0028] The wire clamp 8 structure includes a U-bolt 81, a nut 83, and a cap 82. The two ends of the U-bolt 81 pass through the two through holes 84 on the cap 82, and then the nut 83 is screwed on. After tightening the nut 83, the main pull rope and the auxiliary pull rope 6 passing through the U-bolt 81 can be clamped and fixed.

[0029] During normal lifting or lowering of the worktable, the main pull rope 5 is taut, while the auxiliary pull rope 6 is slack. The weight of the worktable 2 is borne by the main pull rope 5, and the auxiliary pull rope 6 is unloaded. If the main pull rope 5 breaks accidentally, the weight is borne by the auxiliary pull rope 6, providing protection. In another embodiment, the main pull rope 5 and the auxiliary pull rope 6 can bear the load simultaneously.

[0030] The stamping assembly 3 includes an inverted cylinder 31 mounted on the top beam 11, a pressure head mounted on the piston rod of the cylinder 31, and an electric hydraulic pump assembly 32 mounted on the right column 12. The electric hydraulic pump assembly 32 is connected to the cylinder 31 via an oil pipe, which drives the cylinder 31 to extend and retract.

[0031] In practical use, when it is necessary to raise the worktable 2, pull out the positioning shaft 41. The support shaft 42 remains stationary to prevent the worktable 2 from falling accidentally. Rotate the winding wheel 3 to wind up the wire and lift the worktable 2. When it is moved to the desired position, insert the positioning shaft 41. Then pull out the support shaft 42 and insert it into the first positioning hole 121 to support the worktable 2. When it is necessary to lower the worktable 2, pull out the support shaft 42 and then lower it into the first positioning hole 121 below to prevent the worktable 2 from falling accidentally. Then pull out the positioning shaft 41, rotate the winding wheel 3 to lower the worktable 2 to the desired height, and then insert the positioning shaft 41.

[0032] Unless otherwise specified, in this utility model, terms such as "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0033] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An electric power press characterized by: Includes frame, worktable, wire take-up and untake-up drive assembly, positioning shaft assembly and stamping assembly; The frame has a top beam and columns on both sides of the top beam, and the left and right sides of the workbench are slidably fitted onto the two columns. The positioning shaft assembly includes a positioning shaft that is simultaneously inserted between the worktable and the column, and a support shaft that is inserted on the column and located below the worktable. The winding and unwinding drive assembly includes a winding wheel, a main pull rope, an auxiliary pull rope, and a guide wheel assembly. The winding wheel and the guide wheel assembly are both arranged on the frame. The starting ends of the main pull rope and the auxiliary pull rope are fixed on the winding wheel. The rope portions of the main pull rope and the auxiliary pull rope extend in the same direction along the arrangement position of the guide wheel assembly and are connected to the worktable, so that the winding wheel drives the worktable to rise or fall when winding and unwinding the rope.

2. The electric press machine according to claim 1, characterized by: The workbench includes a front plate, a rear plate, a connecting plate disposed between the front plate and the rear plate, and pads fixed to the top of the front plate and the rear plate. The left and right ends of the front panel and the left and right ends of the rear panel form assembly grooves, and the left and right assembly grooves respectively fit onto the two columns.

3. The electric press machine of claim 2, wherein: The column has multiple first positioning holes arranged vertically. The left and right ends of the front plate and the rear plate have second positioning holes that can mate with the first positioning holes. The positioning shaft is inserted into both the first positioning holes and the second positioning holes. The support shaft is inserted into the first positioning hole. The two ends of the support shaft are located on the outside of the column to support the front plate and the rear plate.

4. The electric press machine of claim 2, wherein: There are notches at the bottom of the left and right ends of the front and rear panels, and the notches correspond to the support shaft and are provided with rubber buffer pads.

5. The electric press machine of claim 2, wherein: The guide wheel assembly includes a first guide wheel, a second guide wheel, a third guide wheel, and a fourth guide wheel. The first guide wheel and the second guide wheel are disposed on the upper and lower sides of one of the columns, and the fourth guide wheel and the third guide wheel are disposed on the upper and lower sides of the other column. The main pull rope and the auxiliary pull rope pass through the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel in sequence. The parts of the main pull rope and the auxiliary pull rope corresponding to the first guide wheel and the second guide wheel are connected to the connecting plate in the workbench. The ends of the main pull rope and the auxiliary pull rope are connected to the connecting plate in the workbench.

6. The electric press machine of claim 1, wherein: The stamping assembly includes a hydraulic cylinder mounted on the top beam and an electric hydraulic pump unit mounted on the column. The electric hydraulic pump unit is connected to the hydraulic cylinder via an oil pipe, which drives the hydraulic cylinder to extend and retract.

7. The electric press machine of claim 1, wherein: The main pull rope is in a taut state, and the auxiliary pull rope is in a slack state.

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