Flange blank forging and pressing fixing device

Abstract

The utility model discloses a flange blank forging and pressing fixing device which comprises a base and an adjustable clamping mechanism, the adjustable clamping mechanism is arranged on the base and comprises a bottom supporting seat, a driving clamping arm, a first driven clamping arm, a second driven clamping arm, a buffering part and a driving mechanism, and a first rack section is arranged on the driving clamping arm. A positive clamping head is arranged at the front end of the driving clamping arm, gears matched with the first rack section are symmetrically arranged on the two sides of the driving clamping arm, the tail end of the driving clamping arm is connected with a driving mechanism through a buffering part, a second rack section is arranged on the first driven clamping arm, and a third rack section is arranged on the second driven clamping arm. The first driven clamping arm and the second driven clamping arm are symmetrically arranged with the center line of the driving clamping arm as the axis, the first driven clamping arm and the second driven clamping arm are each provided with a bent part, and side clamping heads are arranged at the front ends of the bent parts. According to the utility model, manpower is saved, the labor intensity of workers is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of forged flange production, in particular to a flange blank forging and fixing device. Background Art

[0002] Flange manufacturing, the production process is mainly divided into forging and casting, which are called cast flanges and forged flanges. Because forged flanges generally have lower carbon content than cast flanges and are not easy to rust, the forgings have good streamlines, denser structures, and better mechanical properties than cast flanges, some special industries must choose forged flanges. Forging is an important step in forging flanges. Usually, special devices are required to fix the flange blanks during the forging process. The current fixing devices need to be replaced when switching to produce different types of flanges, which is time-consuming and labor-intensive. Utility Model Content

[0003] In order to overcome the above-mentioned deficiencies in the prior art, the utility model provides a flange blank forging and fixing device.

[0004] The technical solution adopted by the utility model is: a flange blank forging and fixing device, including a base, the base is used to fix and place the flange blank with the forging equipment, an adjustable clamping mechanism is arranged on the base, the adjustable clamping mechanism includes a bottom support seat, an active clamping arm, a first driven clamping arm, a second driven clamping arm, a buffer part and a driving mechanism, the active clamping arm is provided with a first rack section, both sides of the first rack section are provided with transmission teeth, the front end of the active clamping arm is provided with a positive clamping head, the two sides of the active clamping arm are symmetrically provided with gears matching with the first rack section, and the end of the active clamping arm The first driven clamping arm is connected with the driving mechanism through a buffer part, a second rack segment is arranged on the first driven clamping arm, the second rack segment cooperates with the gear on one side of the active clamping arm, a third rack segment is arranged on the second driven clamping arm, the third rack segment cooperates with the gear on the other side of the active clamping arm, the first driven clamping arm and the second driven clamping arm are symmetrically arranged with the center line of the active clamping arm as the axis, a first bent portion is arranged on the upper part of the first driven clamping arm, a second bent portion is arranged on the front part of the second driven clamping arm, a first side clamping head is arranged at the front end of the first bent portion, and a second side clamping head is arranged at the front end of the second bent portion;

[0005] Furthermore, the buffer portion includes a buffer cylinder, a spring and a driving mechanism connector; the buffer cylinder is sealed at one end close to the active clamping arm and fixedly connected to the active clamping arm; the buffer cylinder is provided with an opening at one end away from the active clamping arm, a driving mechanism connector is provided in the opening, a limiting block is provided at one end of the driving mechanism connector located in the buffer cylinder, the other end of the driving mechanism connector is connected to the driving mechanism, a spring is provided between the driving mechanism connector and the sealed end of the buffer cylinder, and the end of the spring away from the driving mechanism connector is connected to the inner wall of the sealed end of the buffer cylinder;

[0006] Further, the bottom support seat is provided with a first guide groove, a second guide groove and a third guide groove, the active clamping arm cooperates with the first guide groove, the first driven clamping arm cooperates with the second guide groove, and the second driven clamping arm cooperates with the third guide groove;

[0007] Furthermore, the driving mechanism adopts a hydraulic cylinder;

[0008] Further, the drive mechanism connector is detachably connected to the drive mechanism, and the drive mechanism connector and the drive mechanism are both provided with two connecting pin holes that match each other at their connection points, and a detachable connecting pin is provided in the connecting pin hole, and two limit pin holes are also provided on the drive mechanism connector, and a plurality of holes that match the limit holes are provided on the bottom support seat below the limit pin holes, and a limit pin is detachably provided in the limit pin hole;

[0009] Furthermore, the connecting pin and the limiting pin can be used interchangeably;

[0010] Furthermore, slide rails are symmetrically arranged on both sides of the first guide groove, and sliders cooperating with the slide rails are arranged on both sides of the active clamping arm. The matching structure between the second guide groove and the first driven clamping arm, and the matching structure between the third guide groove and the second driven clamping arm is the same as the matching structure between the first guide groove and the active clamping arm.

[0011] The utility model drives the active clamping arm through a driving mechanism, and then the active clamping arm drives the first driven clamping arm and the second driven clamping arm to move, and the blank flange placed on the base is clamped under the action of the positive clamping head arranged on the active clamping arm, the first side clamping head arranged on the first driven clamping arm, and the second side clamping head arranged on the second driven clamping arm, and the active clamping arm is adjusted by the driving mechanism to adapt to the processing of blank flanges of different models.

[0012] The utility model does not need to replace the blank flange fixing device when forging flanges of different types, thus saving manpower, reducing the labor intensity of the staff and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a schematic diagram of the structure of the utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the buffer part of the utility model.

[0015] Figure 3 It is a cross-sectional schematic diagram of the connection between the active clamping arm and the first guide groove of the utility model.

[0016] In the figure: 1. base, 2. bottom support seat, 201. first guide groove, 202. second guide groove, 203. third guide groove, 3. active clamping arm, 301. first rack segment, 302. positive clamping head, 4. first driven clamping arm, 401. second rack segment, 402. first bent portion, 403. first side clamping head, 5. second driven clamping arm, 501. third rack segment, 502, second bent portion, 503. second side clamping head, 6. buffer portion, 601. buffer cylinder, 602. spring, 603. driving mechanism connecting head, 6031. connecting pin hole, 6032. limiting pin hole, 7. driving mechanism, 8. gear. DETAILED DESCRIPTION

[0017] In order to more clearly understand the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0018] like Figure 1-Figure 3As shown, a flange blank forging and fixing device comprises a base 1, wherein the base 1 is used to fix and place the flange blank with the forging equipment, an adjustable clamping mechanism is arranged on the base 1, and the adjustable clamping mechanism comprises a bottom support seat 2, an active clamping arm 3, a first driven clamping arm 4, a second driven clamping arm 5, a buffer part 6 and a driving mechanism, a first rack segment 301 is arranged on the active clamping arm 3, transmission teeth are arranged on both sides of the first rack segment 301, a positive clamping head 302 is arranged at the front end of the active clamping arm 3, gears 8 cooperating with the first rack segment 301 are symmetrically arranged on both sides of the active clamping arm 3, the end of the active clamping arm 3 is connected to the driving mechanism through the buffer part 6, and the driving mechanism adopts a hydraulic cylinder, a second rack segment 401 is arranged on the first driven clamping arm 4, and the second rack segment 401 cooperates with the gear 8 on one side of the active clamping arm 3, and a third rack segment 501 is arranged on the second driven clamping arm 5, and the third rack segment 501 cooperates with the gear 8 on the other side of the active clamping arm 3 The first driven clamping arm 4 and the second driven clamping arm 5 are symmetrically arranged with the center line of the active clamping arm 3 as the axis. A first bent portion 402 is arranged on the upper part of the first driven clamping arm 4, and a second bent portion 502 is arranged on the front part of the second driven clamping arm 5. A first side clamping head 403 is arranged at the front end of the first bent portion 402, and a second side clamping head 503 is arranged at the front end of the second bent portion 502. The driving mechanism 7, i.e., the hydraulic cylinder, pushes the active clamping arm 3, and the active clamping arm 3 moves forward, while driving the gears 8 located on both sides of the first rack segment 301 to rotate. The two gears 8 drive the first driven clamping arm 4 and the second driven clamping arm 5 to move obliquely downward, so that the positive clamping head 302 and the two side clamping heads clamp the flange blank. When the flange blank needs to be replaced, the driving mechanism 7 pulls the active clamping arm 3, and under the transmission action of the rack and gear 8, the positive clamping head 302 and the two side clamping heads are away from the flange blank, so that the flange blanks of the same model and different models can be replaced.

[0019] Specifically, the buffer portion 6 includes a buffer tube 601, a spring 602 and a drive mechanism connector 603. The buffer tube 601 is sealed at one end close to the active clamping arm 3 and is fixedly connected to the active clamping arm 3. The buffer tube 601 is provided with an opening at one end away from the active clamping arm 3, and a drive mechanism connector 603 is provided in the opening. A limiting block is provided at one end of the drive mechanism connector 603 located in the buffer tube 601, and the other end of the drive mechanism connector 603 is connected to the drive mechanism 7. A spring 602 is provided between the drive mechanism connector 603 and the sealed end of the buffer tube 601, and the end of the spring 602 away from the drive mechanism connector 603 is connected to the inner wall of the sealed end of the buffer tube 601. When the driving mechanism 7 is pushed forward, the driving mechanism connecting head 603 moves forward, contacts the spring 602 and compresses the spring 602. When the spring 602 is compressed to a certain amount, it pushes the active clamping arm 3 forward; when the driving mechanism 7 is pulled backward, the driving connecting head moves backward. Since the driving mechanism connecting head 603 is provided with a limited position block, the driving mechanism connecting head 603 pulls the buffer cylinder 601 to move backward, and the buffer cylinder 601 drives the active clamping arm 3 connected thereto to move backward. When the flange blank is forged, the blank is subjected to the force from above and is deformed outward. When the positive clamping head 302 is squeezed outward, it will pass through the active clamping arm 3 to compress the spring 602 set in the buffer cylinder 601 backward. The spring 602 can meet the requirement of the flange blank to deform outward and play a certain buffering role.

[0020] Preferably, the bottom support seat 2 is provided with a first guide groove 201, a second guide groove 202 and a third guide groove 203, the active clamping arm 3 cooperates with the first guide groove 201, the first driven clamping arm 4 cooperates with the second guide groove 202, and the second driven clamping arm 5 cooperates with the third guide groove 203. The guide grooves are provided to make the three clamping arms more stable during movement, thereby playing a supporting and guiding role.

[0021] Preferably, the drive mechanism connector 603 is connected to the drive mechanism 7 in a detachable manner. The drive mechanism connector 603 and the drive mechanism 7 are both provided with two connecting pin holes 6031 that cooperate with each other at their connection. A detachable connecting pin is provided in the connecting pin hole 6031. The drive mechanism connector 603 is also provided with two limit pin holes 6032. A plurality of holes that cooperate with the limit holes are provided on the bottom support seat 2 below the limit pin holes 6032. The plurality of holes that cooperate with the limit holes on the bottom support seat 2 are holes designed corresponding to the size of flange blanks when producing flanges of different models. A detachable connecting pin is provided in the limit pin hole 6032. The limit pin, connecting pin and limit pin are designed to be universal, which is convenient for spare parts manufacturing and replacement. When the driving mechanism 7 is pushed forward, the driving mechanism 7 is connected to the driving mechanism connector 603 through two connecting pins. When the driving mechanism 7 runs to the specified position and is about to clamp the flange blank, the two limit pins are inserted into the limit holes corresponding to the size of the flange blank on the bottom support seat 2, and then the connecting pin is pulled out to disconnect the driving mechanism 7 from the driving mechanism connector 603, thereby reducing the impact of vibration on the driving mechanism 7 during forging and extending the service life of the driving mechanism 7. When it is necessary to take out the forged blank, the connecting pin is inserted and the limit pin is pulled out;

[0022] Preferably, slide rails are symmetrically arranged on both sides of the first guide groove 201, and sliders cooperating with the slide rails are arranged on both sides of the active clamping arm 3. The matching structure between the second guide groove 202 and the first driven clamping arm 4, and the third guide groove 203 and the second driven clamping arm 5 is the same as the matching structure between the first guide groove 201 and the active clamping arm 3, which can enhance the guiding effect.

[0023] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A flange blank forging and fixing device, comprising a base, the base being used to fix and place the flange blank with a forging device, It is characterized in that The base is provided with an adjustable clamping mechanism, and the adjustable clamping mechanism includes a bottom support seat, an active clamping arm, a first driven clamping arm, a second driven clamping arm, a buffer part and a driving mechanism. The active clamping arm is provided with a first rack segment, and transmission teeth are provided on both sides of the first rack segment. A positive clamping head is provided at the front end of the active clamping arm, and gears matching the first rack segment are symmetrically provided on both sides of the active clamping arm. The end of the active clamping arm is connected to the driving mechanism through the buffer part, and the first driven clamping arm is provided with a first Two rack segments, the second rack segment cooperates with the gear on one side of the active clamping arm, the second driven clamping arm is provided with a third rack segment, the third rack segment cooperates with the gear on the other side of the active clamping arm, the first driven clamping arm and the second driven clamping arm are symmetrically arranged with the center line of the active clamping arm as the axis, a first bent portion is provided on the upper part of the first driven clamping arm, a second bent portion is provided at the front part of the second driven clamping arm, a first side clamping head is provided at the front end of the first bent portion, and a second side clamping head is provided at the front end of the second bent portion.

2. A flange blank forging and fixing device according to claim 1, It is characterized in that The buffer part includes a buffer tube, a spring and a driving mechanism connecting head. The buffer tube is sealed at one end close to the active clamping arm and is fixedly connected to the active clamping arm. The buffer tube is provided with an opening at one end away from the active clamping arm, and a driving mechanism connecting head is provided in the opening. A limiting block is provided at one end of the driving mechanism connecting head located in the buffer tube, and the other end of the driving mechanism connecting head is connected to the driving mechanism. A spring is provided between the driving mechanism connecting head and the sealed end of the buffer tube, and the end of the spring away from the driving mechanism connecting head is connected to the inner wall of the sealed end of the buffer tube.

3. A flange blank forging and fixing device according to claim 1, It is characterized in that The bottom support seat is provided with a first guide groove, a second guide groove and a third guide groove, the active clamping arm cooperates with the first guide groove, the first driven clamping arm cooperates with the second guide groove, and the second driven clamping arm cooperates with the third guide groove.

4. A flange blank forging and fixing device according to claim 1, It is characterized in that The driving mechanism adopts a hydraulic cylinder.

5. A flange blank forging and fixing device according to claim 1, It is characterized in that The driving mechanism connecting head is detachably connected to the driving mechanism, and the driving mechanism connecting head and the driving mechanism are both provided with two connecting pin holes that cooperate with each other at their connection, and a detachable connecting pin is provided in the connecting pin hole. Two limit pin holes are also provided on the driving mechanism connecting head, and a plurality of holes that cooperate with the limit holes are provided on the bottom support seat below the limit pin holes, and a limit pin is detachably provided in the limit pin hole.

6. A flange blank forging and fixing device according to claim 5, It is characterized in that The connecting pin and the limiting pin can be used interchangeably.

7. A flange blank forging and fixing device according to claim 3, It is characterized in that Slide rails are symmetrically arranged on both sides of the first guide groove, and sliders cooperating with the slide rails are arranged on both sides of the active clamping arm. The matching structure between the second guide groove and the first driven clamping arm, and the matching structure between the third guide groove and the second driven clamping arm is the same as the matching structure between the first guide groove and the active clamping arm.

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