Annular oxide skin purging device for forging and pressing

Abstract

The utility model discloses an annular oxide skin purging device for forging and pressing, and relates to the field of mechanical equipment. The device comprises a forging die, a supporting platform is erected on one side of the forging and pressing die, a connecting base is linearly arranged on the supporting platform in a reciprocating mode, an assembling platform is fixedly installed on the connecting base, and a crank rotating disc and a connecting shaft are arranged on the top face of the assembling platform. A crank shaft is assembled on one side of the top face of the crank rotating disc, a connecting panel is rotationally installed outside the crank shaft, and the connecting panel protrudes out of the crank rotating disc and is rotationally installed with the connecting shaft. And a plurality of purging air pipes are detachably mounted on the top surface of the connecting panel. The device has the advantages that the purging air pipe is erected on one side of the forging and pressing die through the supporting platform, after the purging air pipe is pushed into the cavity, the crank rotating disc drives the connecting panel to run eccentrically through the connecting shaft, the purging air pipe conducts annular purging in the cavity, the purging effect is guaranteed, and the steel ball yield is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical equipment field relates to the field of forging press equipment, concretely relates to a ring blowing device of oxide skin of forging and pressing processing. BACKGROUND

[0002] Steel ball needs to heat steel bar raw material to 1000 degrees Celsius or so, and then carries out the forging and pressing forming of steel bar. However, when the steel bar raw material is pushed from the heating furnace to the normal temperature and is sheared, the surface of the steel bar reacts with oxygen in the air, and a dense oxide layer is formed on the surface of the steel bar. When the steel bar raw material is sent into the forging press for forging and pressing, the forging press is pressed to the steel bar to quickly pierce and form. After the steel bar raw material is pressed, the oxide skin on the surface is quickly pressed and falls off around the mold cavity, and the oxide skin falling off in the mold cavity is pressed into the surface of the steel bar during the forging process of the next steel bar, so that the surface of the forged and pierced steel bar forms an appearance defect. In the subsequent secondary forging process, as the temperature decreases and the product is forged again, the oxide skin pressed into the surface of the steel bar is pressed and falls off again, and the subsequent fine forging cannot compensate for the pit marks formed by the falling off of the oxide skin on the surface of the steel ball, resulting in serious unqualified appearance quality of the steel ball product, a large number of defective products, waste steel balls, and high production cost.

[0003] Therefore, in order to remove the oxide skin in the mold cavity, a person needs to hold a gas pipe and blow the arc cavity of the mold after each forging and pressing, so as to blow out the oxide skin in the mold cavity and ensure that there is no defect in the appearance weight of the forged and pressed steel bar. Manual blowing of the mold cavity will greatly waste labor cost. Moreover, the operating site temperature is very high, and manual blowing of the high-temperature oxide skin is easy to be burned or scalded by the splashing high-temperature oxide skin, which has serious safety hazards. UTILITY MODEL CONTENTS

[0004] The utility model discloses a ring blowing device of oxide skin of forging and pressing processing to solve the technical problem that manual blowing of the mold cavity has safety hazards. The support platform sets up the blowing gas pipe on one side of the forging mold, pushes the blowing gas pipe into the cavity, uses the crank disc to drive the connecting panel eccentric operation through the connecting shaft, makes the blowing gas pipe blow in the cavity, guarantees the blowing effect, and improves the good product rate of the steel ball.

[0005] The utility model discloses a technical scheme is: provide a ring blowing device of oxide skin of forging and pressing processing, including forging and pressing mould, forging and pressing mould is by the upper cavity and lower cavity of setting up from top to bottom constitutes, upper cavity elevatingly sets up on the forging and pressing machine, and lower cavity fixed assembly is assembled on the forging and pressing machine, the side of forging and pressing mould is erected with the support platform, and the support platform is provided with the connecting seat of reciprocating straight line, and the connecting seat is fixedly installed with the assembly platform on, and the top surface of assembly platform is provided with the crank disc and connecting shaft, and the center of the crank disc is on the same straight line with the center of connecting shaft, and the crank disc is rotatably installed on the assembly platform by the power element, and connecting shaft and assembly platform linear sliding assembly, the one side of the top surface of crank disc is assembled with the crank axle, and the external rotation of crank axle is installed with the connecting panel, and the connecting panel is protruding to the crank disc, and is rotatably installed with connecting shaft, the top surface of connecting panel is detachably installed with a plurality of blowing air pipes, and blowing air pipe sets up between upper cavity and lower cavity, and the head of blowing air pipe is connected with the elbow, and the elbow is respectively towards upper cavity and lower cavity.

[0006] After the support platform is erected on the side of forging and pressing mould, when forging and pressing operation is carried out in forging and pressing mould, blowing air pipe is away from forging and pressing mould, so that it runs without disturbance, after single forging and pressing is finished, connecting seat moves along the support platform, and blowing air pipe is pushed into between upper cavity and lower cavity of forging and pressing mould, after external gas source sends airflow into blowing air pipe, the airflow is blown out through the elbow, and the elbow is respectively towards upper cavity and lower cavity, so that the die cavity is blown and operated, and when the airflow flows along blowing air pipe, the crank disc is driven to rotate, the crank axle eccentrically arranged on the top surface of the crank disc drives the connecting panel, the connecting axle on the bottom surface of the connecting panel moves linearly along the assembly platform, so that the connecting panel rotates along the connecting axle and the crank axle, so as to drive blowing air pipe to make circular motion, and circular blowing is carried out in upper cavity and lower cavity, the blowing area is expanded, the blowing effect is guaranteed, the yield of steel ball is improved, and after blowing is finished, blowing air pipe is pulled out from the cavity, so that forging and pressing operation can be continuously carried out, and the smoothness of forging and pressing is guaranteed.

[0007] Further optimize the technical scheme, the support platform includes horizontal frame, and the vertical support is assembled on the bottom surface of the horizontal frame along the circumference; the connecting seat is slidingly assembled with the horizontal frame, and a reciprocating driving element is assembled in the horizontal frame, and the output end of the reciprocating driving element is fixedly installed with the connecting seat.

[0008] The support platform is composed of horizontal frame and vertical support, the vertical support supports the horizontal frame, the horizontal frame is used for assembling the connecting seat and other components, the horizontal frame reduces the weight of the device, provides assembly space for the installation of parts, and guarantees the flexibility of use.

[0009] Further optimize the technical scheme, the reciprocating driving element includes a cylinder fixedly installed with the inner wall of the horizontal frame, and the output end of the cylinder is fixedly installed with the connecting seat.

[0010] The cylinder driving connecting seat reciprocates on the horizontal frame, and the structure is mature, stable and safe, and the use cost is reduced.

[0011] Further optimization of the technical scheme, the connecting seat is of an "n" type structure, the connecting seat is slidably mounted on the horizontal frame by means of a guide assembly, and the power member is assembled on the bottom surface of the connecting seat, the output end of the power member penetrates the connecting seat and the assembly platform upward, and is coaxially assembled with the crank disc.

[0012] When the connecting seat of the "n" type structure is assembled with the horizontal frame, the two outward convex structures are on the two sides of the horizontal frame, which provides position constraint for the connecting seat to avoid falling off, and the connecting seat is assembled with the horizontal frame by means of the guide assembly to ensure the linear movement effect of the connecting seat and reduce the movement resistance, and the use is more labor-saving and reliable.

[0013] Further optimization of the technical scheme, the guide assembly comprises sliding blocks fixedly mounted on the two sides of the inner wall of the connecting seat and sliding rails fixedly mounted on the two sides of the outer wall of the horizontal frame, and the sliding blocks are slidably assembled with the sliding rails.

[0014] The sliding rail and the sliding block are simply matched, so that the linear movement of the connecting seat is stable and smooth.

[0015] Further optimization of the technical scheme, the power member comprises a servo motor fixedly assembled on the bottom surface of the connecting seat, the output shaft of the servo motor penetrates the connecting seat and the assembly platform upward, and is coaxially assembled with the crank disc.

[0016] When the servo motor drives the crank disc to rotate, the control is accurate and the response is fast, and the use reliability is ensured.

[0017] Further optimization of the technical scheme, a linear sliding groove is formed on the top surface of the assembly platform along the length direction, and the connecting shaft is slidably assembled with the linear sliding groove.

[0018] The linear sliding groove provides constraint and guidance for the movement of the connecting shaft along the assembly platform, ensures the reliability of the linear movement of the connecting shaft, and ensures the annular operation effect of the purge gas pipe.

[0019] Further optimization of the technical scheme, the top surface of the connecting panel is clamped and assembled with a connecting block by means of a clamp, a plurality of assembly holes matched with the number and position of the purge gas pipes are formed in the connecting block, the purge gas pipes are inserted into the assembly holes, and the two ends of the purge gas pipes penetrate the connecting block.

[0020] The purge gas pipes are inserted and assembled on the connecting block through the assembly holes, and the clamp fixes the purge gas pipes by clamping the connecting block to avoid damaging the purge gas pipes and ensure the use safety.

[0021] Further optimization of the technical scheme, the clamp includes a clamping piece arranged above the connecting panel, both ends of the clamping piece in the length direction are inserted with bolts, and the bolts are in threaded connection with the connecting panel.

[0022] The clamp is tightened by the threaded connection of the bolts and the connecting panel, so as to clamp and fix the connecting block, and the structure is simple, stable and reliable.

[0023] The utility model discloses beneficial effect lies in:

[0024] 1, the support platform sets up the blowing pipe in the one side of the forging die, when the steel bar raw material is added to the forging die and carries out the forging operation, the cylinder will pull the connecting seat, and the blowing pipe is far away from the forging die, so as to not interfere with the forging operation of the forging die, after the single forging is finished, the cylinder pushes the connecting seat, and the blowing pipe is pushed into the upper cavity and the lower cavity of the forging die, and the oxide skin is blown out, and the operation is simple and convenient, and the use is flexible.

[0025] 2, after the blowing pipe is pushed into the cavity, the crank rotating disc rotates and drives the crank shaft eccentrically arranged on the top surface to move, the crank shaft drives the connecting panel to move, the connecting shaft assembled at the bottom of the connecting panel moves linearly on the assembling platform, the connecting panel is limited, the connecting panel rotates along the connecting shaft, so that the blowing pipe on the connecting panel runs circularly, so that the cavity of the forging die is circularly blown, and the elbow of the head of the blowing pipe guides the airflow to the upper cavity and the lower cavity, so as to ensure the blowing effect.

[0026] 3, after the blowing pipe is inserted into the assembly hole on the connecting block, the connecting block is placed on the connecting panel, and then the clamping piece is tightened on the connecting panel by the bolt, so as to clamp and fix the connecting block, so as to fix the blowing pipe, avoid damaging the blowing pipe, and ensure the use safety. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the structure schematic view of the circular blowing device of the embodiment;

[0028] Figure 2 It is the structure schematic view of the running state of the circular blowing device of the embodiment;

[0029] Figure 3 It is the structure schematic view of the support platform of the embodiment;

[0030] Figure 4 It is the structure schematic view of the connecting seat and the connecting panel assembly of the embodiment;

[0031] Figure 5 It is the structure schematic view of the crank rotating disc and the connecting panel and the blowing pipe assembly of the embodiment;

[0032] Figure 6The split structure diagram of the purge pipe and the connecting block of the embodiment.

[0033] In the figure, 1, forging die; 101, upper cavity; 102, lower cavity; 2, support platform; 201, horizontal frame; 2011, slide rail; 202, vertical support; 3, connecting seat; 301, sliding block; 4, assembly platform; 401, straight sliding slot; 5, crank rotating disc; 501, crank shaft; 6, connecting shaft; 7, connecting panel; 8, purge pipe; 801, elbow; 9, air cylinder; 10, servo motor; 11, connecting block; 1101, assembly hole; 12, clamping piece; 1201, bolt. DETAILED DESCRIPTION

[0034] The utility model will be explained further in detail below in combination with the drawings and specific embodiments.

[0035] Please refer to the accompanying drawings Figure 1 , the accompanying Figure 2 , a ring-shaped oxide skin purging device for forging and pressing, comprising a steel ball forging die 1 assembled on a forging press, the forging die 1 is composed of an upper cavity 101 and a lower cavity 102 arranged vertically, the upper cavity 101 is vertically lifted on the forging press, and the lower cavity 102 is fixedly assembled on the forging press; when the heated steel bar raw material is forged, the upper cavity 101 is separated from the lower cavity 102, and after the steel bar raw material is placed in the lower cavity 102, the upper cavity 101 is lowered to forge the steel bar, so that the steel bar is forged and formed in the cavity of the die; one side of the forging die 1 is provided with a support platform 2, the connecting seat 3 is arranged on the support platform 2 in a reciprocating straight line, and the connecting seat 3 slides along the support platform 2 to drive the purging device of the die cavity assembled on the connecting seat 3 to approach or move away from the cavity.

[0036] Please refer to the accompanying drawings Figure 3 , the accompanying Figure 4 The support platform 2 comprises a horizontal frame 201, the bottom surface of the horizontal frame 201 is circumferentially provided with a vertical support 202, the vertical support 202 supports the horizontal frame 201, the connecting seat 3 is slidably arranged on the horizontal frame 201, a reciprocating driving member is assembled in the horizontal frame 201, the reciprocating driving member is an air cylinder 9, the air cylinder 9 is fixedly installed in the inner wall of the horizontal frame 201 by means of a panel, etc., the output end of the air cylinder 9 is fixedly installed with the connecting seat 3, the air cylinder 9 drives the connecting seat 3 to reciprocate along the horizontal frame 201, the cross section of the connecting seat 3 is an “n” type structure, the connecting seat 3 is slidably installed with the horizontal frame 201 by means of a guide assembly, the guide assembly ensures the straight sliding of the connecting seat 3 and reduces the sliding assembly, the guide assembly comprises sliding blocks 301 fixedly installed on the inner wall of the connecting seat 3 and slide rails 2011 fixedly installed on the outer wall of the horizontal frame 201, the sliding blocks 301 are slidably assembled with the slide rails 2011, the structure is mature and simple, and the use is stable and reliable;

[0037] Please refer to the attached drawings Figure 3 The connecting seat 3 is fixedly provided with an assembly platform 4, the top surface of the assembly platform 4 is provided with a crank rotating disc 5 and a connecting shaft 6, the center of the crank rotating disc 5 and the center of the connecting shaft 6 are on the same straight line, the crank rotating disc 5 is rotatably installed on the assembly platform 4 by means of a power element, the power element is arranged on the bottom surface of the connecting seat 3, the horizontal frame 201 below the connecting seat 3 provides an assembly space for the installation of the power element, so that the operation and use of the power element are not disturbed, the power element can be a servo motor 10, the servo motor 10 is fixedly installed on the bottom surface of the connecting seat 3, the output end of the servo motor 10 penetrates the connecting seat 3 and the assembly platform 4 upwards and is coaxially assembled with the crank rotating disc 5, so as to drive the rotation of the crank rotating disc 5;

[0038] Please refer to the attached drawings Figure 1 , the attached drawings Figure 4 , the attached drawings Figure 5 The connecting shaft 6 is linearly and slidably assembled with the assembly platform 4, the assembly platform 4 is provided with a linear sliding groove 401, the connecting shaft 6 is slidably assembled with the linear sliding groove 401, one side of the top surface of the crank rotating disc 5 is assembled with a crank shaft 501, the crank shaft 501 is rotatably installed with a connecting panel 7 outside, the connecting panel 7 protrudes from the crank rotating disc 5, and the bottom surface thereof is rotatably installed with the connecting shaft 6, the top surface of the connecting panel 7 is detachably installed with a plurality of blowing air pipes 8, the positions of the blowing air pipes 8 are arranged between the upper cavity 101 and the lower cavity 102;

[0039] Please refer to the attached drawings Figure 5 , the attached drawings Figure 6 A connecting block 11 is assembled with the connecting panel 7 by means of a clamp, the connecting block 11 is provided with assembly holes 1101 matched with the positions and numbers of the blowing air pipes 8, the blowing air pipes 8 are inserted into the assembly holes 1101, and the two ends of the blowing air pipes 8 penetrate the connecting block 11, so that the blowing air pipes 8 are not interfered with during use and are easy to disassemble and assemble, the furniture for clamping the connecting block 11 includes clamping pieces 12 arranged above the connecting panel 7, the two ends of the clamping pieces 12 in the length direction are inserted with bolts 1201, the bolts 1201 are threadedly connected with the connecting panel 7, as the bolts 1201 are tightened, the clamping pieces 12 clamp and fix the connecting block 11, the clamping pieces 12 avoid damaging the blowing air pipes 8, and the connecting block 11 is fixed firmly, so as to ensure the safe and reliable operation of the blowing air pipes 8,

[0040] Please refer to the attached drawings Figure 1 , the attached drawings Figure 2 The tail end of the blowing air pipe 8 is connected with an external gas source such as a gas pump, and the head of the blowing air pipe 8 is connected with an elbow 801, the elbow 801 respectively faces the upper cavity 101 and the lower cavity 102, so as to guide the blowing air flow, so that the air flow flows into the upper cavity 101 and the lower cavity 102, and the blowing quality is ensured;

[0041] The working principle of the oxide ring blowing device is as follows: the support platform 2 is erected on one side of the forging die 1 of the forging press, when the heated steel rod is sent into the cavity of the forging die 1 for repeated forging, the cylinder 9 is in a contracted state, the blowing pipe 8 is away from the forging die 1, so that the steel rod is not interfered when it is sent into the cavity, and the repeated lifting forging operation of the upper cavity 101 and the lower cavity 102 is not interfered, ensuring the smoothness of the forging;

[0042] After single forging, the upper cavity 101 and the lower cavity 102 are separated to take out the forged steel ball, and the cylinder 9 is operated to drive the connecting seat 3 to move along the slide rail 2011 on the horizontal frame 201, the elbow 801 of the blowing pipe 8 is pushed into the space between the upper cavity 101 and the lower cavity 102, the external air source sends air flow into the blowing pipe 8, and the air flow is blown into the upper cavity 101 and the lower cavity 102 through the elbow 801, the oxide in the cavity is blown out, at the same time, the servo motor 10 is operated to drive the crank disc 5 to rotate, the connecting panel 7 is moved by the eccentric crank shaft 501 on the top surface of the crank disc 5, the connecting shaft 6 on the bottom surface of the connecting panel 7 is slidably arranged on the assembly platform 4 through the straight sliding slot 401, so that the connecting panel 7 rotates along the connecting shaft 6 and the crank shaft 501, thereby driving the blowing pipe 8 to move in a ring shape and blow the oxide in the cavity in a ring shape, expanding the blowing range, completely blowing out the oxide in the cavity, ensuring the blowing effect, and after the blowing is completed, the cylinder 9 pulls out the blowing pipe 8 from the cavity, so as to send the steel rod into the cavity for forging operation again, ensuring the smoothness of the steel rod forging and the forming effect of the steel ball, and improving the yield.

Claims

1. A scale annular purging device for forging, comprising a forging die (1), wherein the forging die (1) is composed of an upper cavity (101) and a lower cavity (102) arranged vertically, the upper cavity (101) being arranged to be lifted on a forging press, and the lower cavity (102) being fixedly mounted on the forging press; and characterized in that: A support platform (2) is provided on one side of the forging die (1), a connecting seat (3) is provided on the support platform (2) in a reciprocating linear manner, an assembly platform (4) is fixedly installed on the connecting seat (3), a crank turntable (5) and a connecting shaft (6) are provided on the top surface of the assembly platform (4), the center of the crank turntable (5) and the center of the connecting shaft (6) are on the same straight line, and the crank turntable (5) is rotatably installed on the assembly platform (4) by means of a power member, and the connecting shaft (6) and the assembly platform (4) are linearly slidably assembled; the top of the crank turntable (5) is provided with a crank turntable (5) and a connecting shaft (6). A crank shaft (501) is assembled on one side of the surface, and a connecting panel (7) is rotatably mounted on the outside of the crank shaft (501), the connecting panel (7) protruding from the crank turntable (5) and rotatably mounted with the connecting shaft (6); a plurality of purge air pipes (8) are detachably mounted on the top surface of the connecting panel (7), the purge air pipes (8) are arranged between the upper mold cavity (101) and the lower mold cavity (102), and the heads of the purge air pipes (8) are connected to elbows (801), and the elbows (801) face the upper mold cavity (101) and the lower mold cavity (102) respectively.

2. The annular scale purging device for forging according to claim 1, characterized in that: The support platform (2) comprises a horizontal frame (201), the bottom surface of the horizontal frame (201) is equipped with a vertical bracket (202) along the circumferential direction; the connecting seat (3) is slidably assembled with the horizontal frame (201), and a reciprocating drive member is assembled in the horizontal frame (201), and the output end of the reciprocating drive member is fixedly installed with the connecting seat (3).

3. The annular scale purging device for forging according to claim 2, characterized in that: The reciprocating drive member comprises a cylinder (9) fixedly mounted on the inner wall of the horizontal frame (201), and an output end of the cylinder (9) is fixedly mounted on the connecting seat (3).

4. The annular scale purging device for forging according to claim 3, characterized in that: The cross section of the connecting seat (3) is an "n"-shaped structure. The connecting seat (3) is slidably mounted on the horizontal frame (201) by means of a guide assembly, and the power piece is assembled on the bottom surface of the connecting seat (3). The output end of the power piece passes through the connecting seat (3) and the assembly platform (4) upwards and is coaxially assembled with the crank turntable (5).

5. The annular scale purging device for forging according to claim 4, characterized in that: The guide assembly comprises a slider (301) fixedly mounted on both sides of the inner wall of the connecting seat (3) and a slide rail (2011) fixedly mounted on both sides of the outer wall of the horizontal frame (201); the slider (301) and the slide rail (2011) are slidably assembled.

6. The annular scale purging device for forging according to claim 4, characterized in that: The power component comprises a servo motor (10) fixedly assembled to the bottom surface of the connecting seat (3); the output shaft of the servo motor (10) passes through the connecting seat (3) and the assembly platform (4) in an upward direction and is coaxially assembled with the crank turntable (5).

7. The annular scale purging device for forging according to claim 1, characterized in that: A linear slide groove (401) is provided on the top surface of the assembly platform (4) along the length direction, and the connecting shaft (6) is slidably assembled with the linear slide groove (401).

8. The annular scale purging device for forging according to claim 1, characterized in that: The top surface of the connection panel (7) is clamped and assembled with a connection block (11) by means of a clamp. The connection block (11) is provided with assembly holes (1101) that match the number and position of the purge air pipes (8). The purge air pipes (8) are plugged into the assembly holes (1101), and both ends of the purge air pipes (8) pass through the connection block (11).

9. The annular scale purging device for forging according to claim 8, characterized in that: The clamp comprises a clip (12) arranged above the connection panel (7), with bolts (1201) inserted at both ends of the clip (12) in the length direction, and the bolts (1201) are threadedly connected to the connection panel (7).

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