CN108326094A - Pressure unit - Google Patents

Abstract

The invention discloses a press unit, comprising: a first press, a second press, and a third press; the first press includes a first lower mold for clamping workpieces in the left and right directions, and can be moved from the clamping position to the The first upper mold for pressing down; the above-mentioned second press machine includes a second lower mold, a second upper mold, and a positioning mechanism, and the top surface of the above-mentioned second lower mold places the workpiece and is provided with a space for the second upper mold to press down, The second upper mold is located directly above the position where the workpiece is to be pressed, and the positioning mechanism is assembled on the second lower mold to position the workpiece at the position to be pressed; the third press is an open punch. The beneficial effect of the invention is that the production efficiency is improved.

Description

Press unit

technical field

The invention relates to a unit, especially a press unit.

Background technique

The railway fastener system is a component that fixes the rail on the track bed and enables the rail to move vertically, horizontally and longitudinally during the construction of the railway line. The elastic strip in the fastener system is an important part of the railway fastener system used to fix the rail. Its function is to fix the rail on the sleeper, apply a certain elastic buckle pressure to the rail, maintain the correct position of the rail, and prevent the rail from It produces vertical and horizontal displacement, and at the same time provides a certain fastening elasticity to meet the stress divergence requirements after the rail is laid. Compared with the "w" type elastic clip, the "e" type elastic clip (called e-type elastic clip because of its shape like "e") has the characteristics of fewer parts, easy installation and maintenance, and uniform buckle pressure. , so it is used in many rail transit fasteners and high-speed rail fasteners.

At present, the production of e-shaped clips mainly adopts three or four times of stamping, and the disadvantages caused by this are obvious, such as:

1. The molding process is affected by human factors, the size of the product fluctuates greatly, the consistency is poor, and the first pass rate of the product is low.

2. Hot press forming, the punching machine runs fast, the operating environment is poor, and the risk of personnel operation is high, which is easy to cause safety accidents.

3. The production efficiency is not high, there are many operators, and the production cost is high.

4. There is no temperature sorting function, resulting in unstable product quality.

In recent years, with the continuous maturity of industrial robot technology, it has become a development trend to "replace people with machines" to work in harsh environments and improve production efficiency. At present, there is a type C4 e-type elastic strip for high-speed rail. There is currently a winding forming processing equipment (the patent authorization announcement number is CN 204294699 U) can carry out twice forming, although the production process and energy consumption of this equipment have been reduced, have improved product quality, still manually feed materials, and degree of automation is low, and labor intensity is big. So we develop the fully automated production of e-clip.

Contents of the invention

The technical problem to be solved by the present invention is to provide a press unit, which improves the production efficiency.

The present invention is achieved through the following technical solutions.

A press unit comprising:

The first press, the second press, the third press;

Above-mentioned first press machine comprises the first lower die of left and right direction clamping workpiece, the first upper die that can be pressed down by clamping position;

The above-mentioned second press machine includes a second lower mold, a second upper mold, and a positioning mechanism. The top surface of the above-mentioned second lower mold places the workpiece and is provided with a space for the second upper mold to press down. The above-mentioned second upper mold is located on the workpiece. Directly above the position to be pressed, the positioning mechanism is assembled on the second lower mold and can position the workpiece at the position to be pressed;

The above-mentioned third press is set as an open punch press.

Further, the above-mentioned first press also includes a material stripping plate, a base, and a rebound mechanism, the above-mentioned stripping plate and the above-mentioned base are arranged horizontally, the bottom end of the above-mentioned rebound mechanism is fixed on the top surface of the above-mentioned base, and the top end is fixed on the top surface of the above-mentioned base. The bottom surface of the above-mentioned stripper plate, the above-mentioned stripper plate is arranged directly under the above-mentioned first lower mold, and the above-mentioned rebound mechanism is in a compressed state when the above-mentioned first upper mold is pressed down to the lowest point.

Further, the above-mentioned positioning mechanism includes a positioning device, a first pushing device, and a push rod. The first pushing device drives the above-mentioned push rod to move laterally, pushes one end of the belt processing piece and makes the other end abut against the above-mentioned positioning device.

Further, the above-mentioned second press machine also includes a backstop mechanism, the above-mentioned backstop mechanism includes a second pushing device and a backstop rod, the above-mentioned second pushing device is fixed on the above-mentioned second lower mold, and the above-mentioned backstop rod is assembled on the above-mentioned second A pushing device, the above-mentioned second pushing device drives the stop bar to move laterally to the top where the workpiece to be processed is pressed down by the above-mentioned second upper mold.

Beneficial effects of the present invention:

1. Realized the automatic production of e-type elastic strips, saved a lot of labor costs, and improved the quality level of products and production safety;

2. It can realize the switching of the production of two kinds of clips, which saves the investment cost of equipment.

3. The temperature detection and sorting device is used to ensure the quality of the product.

4. The production efficiency is high, the product cost is reduced, and the market competitiveness of the product is improved.

5. The system is easy to operate and has good versatility, which can realize rapid switching of various products.

Description of drawings

Fig. 1 is a top view schematic diagram of the press unit of the present invention;

Fig. 2 is the structural representation of the first press;

Fig. 3 is the structural representation one of the second press machine;

Fig. 4 is the second structural schematic diagram of the second press.

Detailed ways

The present invention will be described in further detail below according to the drawings and embodiments.

Referring to Fig. 1-Fig. 4, in the present invention, the press unit includes: a first press, a second press, and a third press.

The press units are all arranged on the operation platform 100 .

With reference to Fig. 2 and in conjunction with Fig. 1, the first press 2 machine comprises the first lower mold 53 of left and right direction clamping workpiece, the first upper mold 57 that can press down by clamping position.

The first press also includes a material stripping plate 54, a base 56, and a rebound mechanism 55. The above-mentioned stripping plate 54 is arranged horizontally with the above-mentioned base 56, and the bottom end of the above-mentioned rebound mechanism 55 is fixed on the top surface of the above-mentioned base 56. The top end is fixed on the bottom surface of the above-mentioned stripper plate 54, and the above-mentioned stripper plate 54 is arranged directly below the above-mentioned first lower mold 57, and the above-mentioned rebound mechanism 55 is in a compressed state when the above-mentioned first upper mold 57 is pressed down to the lowest point.

Referring to Fig. 3, Fig. 4 and in conjunction with Fig. 1, the second press machine includes a second lower mold 65, a second upper mold 61, and a positioning mechanism. The top surface of the second lower mold 65 places the workpiece and is provided with a second upper mold. In the space where the mold 65 presses down, the above-mentioned second upper mold 61 is located directly above the position to be pressed, and the above-mentioned positioning mechanism is assembled on the above-mentioned second lower mold 65 and can position the workpiece at the position to be pressed.

The positioning mechanism includes a positioning device 64, a first pushing device 62, and a push rod 63. Both the above-mentioned first pushing device 62 and the above-mentioned positioning device 64 are fixed on the above-mentioned second lower mold 65, and the above-mentioned push rod 63 is assembled on the above-mentioned first push rod. device 62 , the above-mentioned first pushing device 62 drives the above-mentioned push rod 63 to move laterally, pushes one end of the tape processing piece and makes the other end abut against the above-mentioned positioning device 64 .

The second press machine also includes a backstop mechanism, the above-mentioned backstop mechanism includes a second pushing device 75 and a backstop rod 74, the second pushing device 75 is fixed on the second lower mold 65, and the above-mentioned backstop rod 74 is assembled on the above-mentioned second bottom mold 65. Two pushing devices 75 , the above-mentioned second pushing device 75 drives the stop rod 74 to move laterally to the top where the workpiece to be processed is pressed down by the above-mentioned second upper mold 65 .

The above-mentioned third press 4 machine is set as an open punch press.

A plurality of robot hands arranged on the operating platform are used to grab the workpiece to be processed to the above-mentioned first press until the above-mentioned third pressure is operated and then take out the workpiece. In this implementation case, there are four robot hands, respectively are robot hand A, robot hand B, robot hand C, and robot hand D.

The operating modes are as follows:

The robot hand A removes the blank from the heating mechanism 1, and first conducts temperature detection and screening. If the temperature is not suitable, the blank is discarded. If the temperature is suitable, the bar is placed in the first press 2. Lower the mold 53, and then the first upper mold 57 moves downward under the drive of the first press 2, and the blank is gradually formed into a semi-finished product 51, and moves downward with the first upper mold 57, and rests on the stripper plate 54, continue to move downward to compress the rebound mechanism 55. After the molding is completed, the first upper mold 57 moves upward until it returns to its original position. The rebound mechanism 55 provides elastic force to make the stripper drive the semi-finished product 51 to move upward to a fixed position. The gripping position 52 of the robot hand B removes the semi-finished product 51 from the first press 2 .

After the robot hand B clamps the position 52 and places the semi-finished product 51 on the second lower mold 65 on the second press 3, the push rod 63 of the first pushing device 62 moves in the direction of the positioning device 64, and pushes the semi-finished product 51 until it reaches its position. Arrest on the positioning device 64, and then the pushing device 62 drives the stacking rod 63 to retreat to the original position, and the second upper mold 61 moves downward under the drive of the press 3 to carry out the second stamping and forming.

After the second stamping and forming, the semi-finished product 51 is formed into a semi-finished product 71. When the second upper mold 61 is in place, the second pushing device 75 drives the stop rod 74 to move forward until the stop rod 74 is directly above the semi-finished product 71 and Closely attached to the semi-finished product 71, and then the second upper mold 61 moves upwards under the drive of the second press 3. Due to the effect of friction, the semi-finished product 71 tends to move upwards, and is resisted by the stop rod 74, so that the semi-finished product 71 maintains its original shape. position, which is convenient for the robot hand C to locate and grasp. After returning to the original position, the anti-retraction rod 74 returns to the original position under the action of the pushing device 75, and then the robot hand C is opened, supported on the position 72 and the position 73 respectively, and the semi-finished product 71 is fixed on the claw, Take off from the second lower mold 65 on the second press 3 then, be placed on the mold of the 3rd press 4, carry out the third time profiling.

The robot hand D takes off the semi-finished product from the third press 4, puts it into the quenching furnace 7, and proceeds to the next process.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand and implement the content of the present invention, and cannot limit the protection scope of the present invention with this. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (4)

1. A press unit, characterized in that, comprising: The first press, the second press, the third press; The first press machine includes a first lower mold for clamping the workpiece in the left and right direction, and a first upper mold that can be pressed down from the clamping position; The second press includes a second lower mold, a second upper mold, and a positioning mechanism. The top surface of the second lower mold places the workpiece and is provided with a space for the second upper mold to press down. The second upper mold Located directly above the position to be pressed of the workpiece, the positioning mechanism is assembled on the second lower mold and can position the workpiece at the position to be pressed; The third press is set as an open punch. 2. The press unit according to claim 1, wherein the first press further comprises a stripping plate, a base, and a rebound mechanism, the stripping plate and the base are arranged horizontally, the The bottom end of the rebound mechanism is fixed on the top surface of the base, the top end is fixed on the bottom surface of the stripper plate, the stripper plate is arranged directly below the first lower mold, and the first upper mold faces The rebound mechanism is in a compressed state when pressed down to the lowest point. 3. The press unit according to claim 1, wherein the positioning mechanism comprises a positioning device, a first pushing device, and a push rod, and both the first pushing device and the positioning device are fixed on the first pushing device. Two lower molds, the pusher rod is assembled on the first pushing device, the first pushing device drives the pusher rod to move laterally, pushes one end of the workpiece to be processed and makes the other end against the positioning device . 4. The press unit according to claim 1, characterized in that, the second press machine further comprises a backstop mechanism, the backstop mechanism includes a second pushing device and a backstop rod, and the second pushing device is fixed In the second lower mold, the backstop rod is assembled on the second pusher, and the second pusher drives the backstop bar to move laterally to the top where the workpiece to be processed is pressed down by the second upper mold.