Oil spraying machine for secondary stamping part

Abstract

The utility model discloses an oil spraying machine for a secondary stamping part, which comprises a machine base, an oil spraying device arranged on the machine base and used for accurately spraying an oil film on the workpiece upwards, and a conveying table arranged on the machine base and positioned on the upper side of the oil spraying device in a front-back sectioned manner, a bearing frame which is used for bearing a workpiece and is provided with a hollow middle part so that sprayed oil can penetrate through is placed on the conveying belt, the conveying table is provided with a driving shaft for driving the conveying belt to operate, a tensioning shaft which is positioned at the other end for supporting and tightening the conveying belt, and a driving motor for driving the driving shaft to rotate forwards and backwards, and a guide shaft and a driving screw rod parallel to the guide shaft are arranged on the machine base; the oil injection device is installed on the guide shaft. The bearing frame bears the workpiece to move together, so that the workpiece does not deflect. The hollowed-out part enables the oil injection device below to penetrate through the bearing frame to accurately inject oil to the workpiece. The bearing frame can return without being transferred additionally, the workpiece can be placed in and taken away at the same head, and the workpiece can be sprayed with oil twice and supplemented.

Description

Technical Field

[0001] The utility model relates to an oil spraying technology before secondary stamping, in particular to an oil spraying machine for secondary stamping parts. Background Art

[0002] When stamping some products with relatively large depths, such as water tanks and fuel tanks, it is often impossible to complete the stamping in one go. If continuous stamping is carried out, due to its limited thickness, local thinning may occur, resulting in excessive stretching deformation or even perforation. Therefore, it is necessary to temper the semi-finished products after the first stamping and stretching, and then carry out secondary stretching. Before the secondary stretching, it is necessary to spray oil on the semi-finished products to avoid excessive frictional resistance between the workpiece and the mold, which may cause wrinkles or other defects. Usually, when spraying oil on flat raw materials, a pre-blocking device can be used to adjust their positions before passing through the oil spraying device. For semi-finished products with irregular shapes after the first processing and tempering, the oil spraying part is a concave surface, and there are twisted and irregular remaining materials that have not been cut off around the notch of the concave surface. Moreover, the semi-finished products are inverted on the conveyor line for transportation. When the workpiece crosses the empty position above the oil spraying device, since the twisted edges cannot all contact the conveyor belt, the part that first contacts the conveyor belt on the opposite side, that is, the downward protruding part, is affected by the frictional force and pulls the workpiece forward. As a result, the traction force at the contact position is greater, forming a speed difference, which causes the workpiece to deflect during the transportation process, and thus the oil spraying position is inaccurate. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide an oil spraying machine for secondary stamping parts that can keep the workpiece with local twisted deformation moving in a stable posture during the oil spraying process.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: an oil spraying machine for secondary stamping parts, which includes a machine base, an oil spraying device arranged on the machine base and precisely spraying an oil film on the workpiece upward, a conveying table arranged on the machine base and divided into front and rear sections above the oil spraying device, the conveying table is provided with a conveyor belt, and a carrier for carrying the workpiece with a hollow middle part for the oil spraying to pass through is placed on the conveyor belt. The conveying table is provided with a driving shaft for driving the conveyor belt to operate, a tensioning shaft located at the other end to support and tighten the conveyor belt, and a driving motor for driving the driving shaft to rotate forward and backward. A guiding shaft fixedly installed is arranged on the machine base, and a driving lead screw parallel to the guiding shaft and threadedly sleeved with the seat body of the oil spraying device. The oil spraying device is slidably installed on the guiding shaft; the oil spraying device is connected to an oil tank through an oil pipe.

[0005] As an improvement to the technical solution of the oil spraying machine for the secondary stamping parts of the present utility model, the bearing frame is a grid-shaped or flat frame body in the shape of a single-hole border adapted to the peripheral contour of the workpiece, and there are blocking pieces around the bearing frame that are perpendicular to its flat frame body to prevent the workpiece from slipping sideways.

[0006] As an improvement to the technical solution of the oil spraying machine for the secondary stamping parts of the present utility model, the conveying table is provided with a stop baffle located at the rear end position of the conveyor belt to limit the backward limit position of the bearing frame.

[0007] As an improvement to the technical solution of the oil spraying machine for the secondary stamping parts of the present utility model, the conveying table is provided with a frame. The frame includes a plurality of beam frames arranged side by side along the running direction of the conveyor belt and having a top surface lower than the conveyor belt, and a plurality of conveyor belts are respectively arranged between the beam frames.

[0008] As an improvement to the technical solution of the oil spraying machine for the secondary stamping parts of the present utility model, a supporting bridge with an end lapping with the frame and a top surface not higher than the conveyor belt is provided between the frames of the front and rear conveying tables.

[0009] As an improvement to the technical solution of the oil spraying machine for the secondary stamping parts of the present utility model, the conveying table at the front side is provided with a protective cover that can accommodate the workpiece to enter and exit.

[0010] As an improvement to the technical solution of the oil spraying machine for the secondary stamping parts of the present utility model, the driving motor is a variable-frequency motor that can drive the front and rear groups of conveyor belts to run back and forth.

[0011] As an improvement to the technical solution of the oil spraying machine for the secondary stamping parts of the present utility model, the machine base is further provided with a gantry frame higher than the conveying table. The gantry frame is located between the front and rear sections of the conveying table and serves as an oil spraying protective cover.

[0012] As an improvement to the technical solution of the oil spraying machine for the secondary stamping parts of the present utility model, the oil spraying device is provided with a nozzle facing upward and a controller that can control the angle and pumping pressure of the nozzle. The gantry frame is provided with an operation panel electrically connected to the controller.

[0013] The beneficial effects of the present utility model are as follows: The oil injector is provided with a carrier on the conveyor belt to carry the workpiece and move forward together. The workpiece with deformed peripheral edge positions is placed on the carrier, and there is no relative displacement between the workpiece and the carrier, so it will not deflect. The carrier is a flat frame, and when placed on the conveyor belt, it can contact the conveyor belt well at all points, and the friction force is stable and balanced. Therefore, the carrier will not deflect during the transportation process, and thus the workpiece will not deflect either. The hollow structure of the carrier enables the oil injection device below to pass through the carrier to inject oil into the workpiece, accurately injecting oil into the workpiece. The oil injection device can move and adjust the oil injection direction, so as to accurately inject oil on the side wall of the workpiece with a deep concave structure. The carrier drives the workpiece on the conveyor belt and is driven by a driving motor to complete a round trip and return to the original position, and then the workpiece is taken away. The round trip can make the carrier return to its position without separately transferring the carrier. The workpiece can be placed and taken away at the same end of the equipment, which is convenient for the layout of the equipment. The workpiece can be injected with oil twice during one round trip cycle, and the injection can be supplemented to complete the injection on different sides. Description of the Drawings

[0014] Figure 1 It is a schematic side structure diagram of the semi-finished product to be secondarily stamped.

[0015] Figure 2 It is a schematic three-dimensional structure diagram of the oil injector for a secondary stamping part of the present utility model.

[0016] Figure 3 It is Figure 2 A partial three-dimensional schematic diagram of the obliquely upward side of the shown oil injector.

[0017] Figure 4 It is Figure 2 A schematic front structure diagram of the simplified structure of the shown oil injector.

[0018] Figure 5 It is Figure 2 A partial three-dimensional schematic diagram of the conveyor table surface of the shown oil injector.

[0019] Figure 6 It is a schematic three-dimensional structure diagram of the carrier. Detailed Embodiment

[0020] The following further illustrates the detailed embodiment of the present utility model with reference to the drawings.

[0021] As Figure 2 , Figure 4 , Figure 5As shown in the figure, an oil spraying machine for a secondary stamping part of the utility model includes a machine base 11, an oil spraying device 12 arranged on the machine base 11 and spraying an oil film accurately on the workpiece upward, and a conveying table 21 arranged on the machine base 11 and arranged in a segmented manner front and back on the upper side of the oil spraying device 12. The conveying table 21 is provided with a conveyor belt 22, and a carrier 32 for carrying the workpiece 58 with a hollow middle part for the oil spray to pass through is placed on the conveyor belt 22. The carrier is as Figure 6 shown, the oil spraying machine sets the carrier 32 on the conveyor belt 22 to carry the workpiece 58 and move forward together. As Figure 3 、 Figure 4 shown, the workpiece 58 with deformed peripheral edge positions is placed on the carrier 32. The workpiece is as Figure 1 shown, there is no relative displacement between the workpiece 58 and the carrier 32, so the workpiece will not deflect. The carrier 32 is a flat frame body. When the carrier 32 is placed on the conveyor belt 22, it can contact the conveyor belt 22 well everywhere, and the friction force is stable and balanced. Therefore, the carrier 32 will not deflect during the transportation process, and further the workpiece will not generate position deflection. The hollow structure of the carrier 32 enables the oil spraying device 12 below to pass through the carrier 32 to spray oil on the workpiece, and accurately spray oil on the workpiece 58. The conveying table 21 is provided with a driving shaft 23 for driving the conveyor belt 22 to operate, a tensioning shaft 24 located at the other end to support and tension the conveyor belt 22, and a driving motor 25 for driving the driving shaft 23 to rotate forward and backward. A guiding shaft 13 is fixedly installed on the machine base 11, and a driving lead screw 14 parallel to the guiding shaft and threadedly sleeved with the seat body of the oil spraying device 12 is provided. The oil spraying device is slidably installed on the guiding shaft 13; the oil spraying device 12 is connected to an oil tank 15 through an oil pipe so that the oil tank can be replaced to supplement the oil. The rotation of the driving lead screw 14 can make the oil spraying device 12 move along the axial direction of the guiding shaft 13 through the cooperating nut. The oil spraying device 12 can move and adjust the oil spraying direction, so as to accurately spray the side wall of the workpiece with a deep concave structure. The carrier 32 drives the workpiece 58 to complete a round trip on the conveyor belt under the drive of the driving motor and then returns to the original position to take away the workpiece. The round trip can make the carrier 32 return to its position, and the carrier 32 can work continuously in a cycle without being transferred separately. The workpiece 58 can be placed and taken away at the same end of the equipment, which is convenient for the layout of the equipment. The workpiece 58 can be sprayed twice during one round trip cycle, and the spraying on different sides can be supplemented.

[0022] Among them, the carrier 32 is a flat frame body in a grid shape or a single-hole frame shape adapted to the peripheral contour of the workpiece, so that the carrier 32 avoids the space required for the oil spray to pass through and does not block the oil from spraying on the part of the workpiece that needs to be sprayed. The four sides of the carrier 32 are provided with blocking pieces 33 perpendicular to its flat frame body to block the lateral deviation and sliding of the workpiece, preventing the workpiece from sliding sideways and avoiding the sharp parts of the workpiece from cutting the conveyor belt 22.

[0023] Furthermore, the conveyor platform 21 is provided with a stop baffle 28 located at the rear end position of the conveyor belt 22 for limiting the backward limit position of the carrier 32, so that the carrier 32 can be limited and aligned when it returns, which is convenient for it to be positioned to a certain extent, and it is convenient for the robot to place the workpiece in the appropriate position.

[0024] The conveyor platform 21 is provided with a frame 26, which includes a plurality of frame beams arranged side by side along the running direction of the conveyor belt 22 and whose top surfaces are lower than the conveyor belt 22, and a plurality of conveyor belts 22 are respectively arranged between the frame beams 26. The frame is provided with a plurality of beam supports, so that the deflection of the support shaft is reduced, the support shaft is kept straight, the strength burden of the support is reduced, and the end support and tension of the conveyor belt 22 are more stable and reliable.

[0025] Among them, a supporting bridge 27 is provided between the frames 26 of the front and rear conveyor platforms 21, the end of which overlaps the frame 26 and the top surface is not higher than the conveyor belt 22. The supporting bridge 27 plays a role of transition support, preventing the rear end of the carrier 32 from tilting when crossing the break position of the conveyor platform 21, and preventing the front end from being overly pressed down and unable to climb onto the opposite conveyor belt 22.

[0026] The conveyor platform 21 at the front side is provided with a protective cover 29 which can accommodate the workpieces to enter and exit, and plays the role of protecting the working space and the workpieces, and preventing dust and debris.

[0027] Among them, the driving motor 25 is a variable frequency motor that can drive the front and rear groups of the conveyor belts 22 to reciprocate, thereby driving the carrier 32 to move within the range of the conveyor platform 21 without excessive forward or backward movement, always making reciprocating motion instead of circular forward motion.

[0028] The machine base 11 is also provided with a gantry 16 higher than the conveyor platform 21, so as to facilitate setting the interactive control interface, display screen 18, etc. at a suitable height. The gantry 16 is located between the front and rear conveyor platforms 21 as an oil spraying protective cover to prevent the oil spraying from splashing out from the periphery of the workpiece.

[0029] The oil spraying device 12 is provided with an upwardly directed nozzle 19 and a controller (not shown) that can control the angle of the nozzle 19 and the pumping pressure. The nozzle 19 sprays upward, making it easier to control the spraying amount and less likely to cause aggregation. The gantry 16 is provided with an operation panel 17 electrically connected to the controller, which facilitates the setting and selection of spraying parameters for different workpieces.

[0030] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. An oil spraying machine for secondary stamping parts, characterized in that: It includes a machine base, an oil spraying device installed on the machine base and precisely spraying an oil film on the workpiece upward, and a conveying table installed on the machine base and arranged in sections front and back above the oil spraying device. The conveying table is provided with a conveyor belt, and a carrier for carrying the workpiece with a hollow middle part for the oil spray to pass through is placed on the conveyor belt. The conveying table is provided with a drive shaft for driving the conveyor belt to run, a tensioning shaft located at the other end to support and tighten the conveyor belt, and a drive motor for driving the drive shaft to rotate forward and backward. A guiding shaft fixedly installed and a drive lead screw parallel to the guiding shaft and threadedly sleeved with the seat body of the oil spraying device are provided on the machine base, and the oil spraying device is slidably installed on the guiding shaft; the oil spraying device is connected in series with an oil tank through an oil pipe.

2. The oil injector for the secondary stamping part according to claim 1, characterized in that: The carrier is a grid-shaped or flat frame body with a single-hole border shape adapted to the peripheral contour of the workpiece, and blocking pieces perpendicular to the flat frame body are provided around the carrier to prevent the workpiece from slipping sideways.

3. The oil injector for the secondary stamping part according to claim 1 or 2, characterized in that: The conveying table is provided with a stop baffle located at the end position of the rear end of the conveyor belt to limit the backward limit position of the carrier.

4. The oil injector for the secondary stamping part according to claim 1, characterized in that: The conveying table is provided with a frame, and the frame includes a plurality of beam frames arranged side by side along the running direction of the conveyor belt and with the top surface lower than the conveyor belt, and a plurality of conveyor belts are respectively arranged between the beam frames.

5. The oil injector for the secondary stamping part according to claim 1, characterized in that: A supporting bridge with an end lapped with the frame and a top surface not higher than the conveyor belt is provided between the frames of the front and rear conveying tables.

6. The oil injector for the secondary stamping part according to claim 1, characterized in that: The conveying table located at the front side is provided with a protective cover for the workpiece to enter and exit.

7. The oil spraying machine for the secondary stamping part according to claim 1, characterized in that: The drive motor is a variable-frequency motor that can drive the front and rear groups of conveyor belts to run back and forth.

8. The oil injector for the secondary stamping part according to claim 1, wherein: The machine base is further provided with a gantry frame higher than the conveying table, and the gantry frame is located between the front and rear sections of the conveying table as an oil spraying protective cover.

9. The oil spraying machine for the secondary stamping part according to claim 8, wherein: The oil spraying device is provided with a nozzle facing upward and a controller for controlling the angle and pumping pressure of the nozzle, and the gantry frame is provided with an operation panel electrically connected to the controller.

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