A production device and method for pressing a tee body

Abstract

The present invention discloses a production device for a pressed tee, including a clamping and fixing mechanism for clamping and fixing a workpiece, a hole-pushing mechanism that can penetrate into the center hole of the workpiece and push through the side wall plate of the workpiece to form a side hole of the workpiece, a hole-repairing mechanism for repairing the side hole of the workpiece, a hole-expanding mechanism for expanding the side hole of the workpiece, and a cutting mechanism for flattening the edge of the side hole of the workpiece. The present invention also discloses a production method, wherein the workpiece is clamped by the clamping and fixing mechanism, the hole-pushing mechanism can penetrate into the interior of the workpiece and push through the side wall plate of the workpiece to form a prototype of the side hole of the workpiece, the side hole of the workpiece is corrected to a circle by the cooperation of the hole-repairing mechanism and the hole-expanding structure, and finally the side hole of the workpiece is cut and flattened by the cutting mechanism to form the main workpiece of the tee connector. Compared with the prior art, the technical solution of the present invention has the advantages of convenient operation, reasonable structure and high work efficiency, and can effectively improve the production efficiency of the tee and ensure product quality.

Description

Technical Field

[0001] The invention relates to the technical field of press-fit connectors, and in particular to a press-fit tee production device and a production method. Background Art

[0002] In pipeline laying, it is usually necessary to adaptively use straight connectors, three-way connectors, elbow connectors, etc. according to different laying environments. In the prior art, a threaded connection structure is usually used to connect the connector and the pipeline. However, when the pipe of the traditional technology is provided with an external thread at the end, the operator is required to use a tapping device to provide the external thread. This requires the operator to have a certain amount of operating skills and strict control of the thread. Therefore, the press-fit connector can effectively solve the technical problems of traditional pipeline connections and can speed up the construction progress.

[0003] Among them, the three-way connector of traditional technology is usually produced by casting, but the casting production cycle is long and it is easy to leave structural defects such as sand holes in its internal structure, which affects its actual performance. Therefore, designing the corresponding three-way connector production equipment and optimizing the structural setting are of great significance to improving the production efficiency of the tee body as the main part of the three-way connector and ensuring its structure and performance. Summary of the invention

[0004] The main purpose of the present invention is to propose a pressed tee production device which is easy to operate, has a reasonable structure and is efficient in operation. The present invention also proposes a production method using the pressed tee production device, aiming to improve the production efficiency of the tee and ensure product quality.

[0005] To achieve the above-mentioned purpose, the present invention proposes a pressed tee production device, including a clamping and fixing mechanism for clamping and fixing the workpiece, a hole-pushing mechanism that can penetrate into the center hole of the workpiece and push through the side wall plate of the workpiece to form a side hole of the workpiece, a repairing mechanism for repairing the side hole of the workpiece, an expanding mechanism for expanding the side hole of the workpiece, and a cutting mechanism for flattening the edge of the side hole of the workpiece.

[0006] Preferably, the clamping and fixing mechanism includes a first mounting bracket fixedly connected to the mounting base plate, a first hydraulic push rod is connected to the top of the first mounting bracket, an upper mold is connected to the bottom end of the first hydraulic push rod, the top surface of the mounting base plate is connected to the lower mold through a supporting block, and the upper mold is moved downward by the first hydraulic push rod and is closed with the lower mold to fix the workpiece.

[0007] Preferably, the top hole mechanism includes a first slide rail group connected to the top surface of the mounting base plate, the top surface of the first slide rail group is slidably connected to a top hole mechanism mounting plate, the top surface of the mounting base plate is connected to a second hydraulic push rod through a second mounting bracket, the telescopic end of the second hydraulic push rod is connected to a third mounting bracket fixedly mounted on the top hole mechanism mounting plate and pushes the top hole mechanism mounting plate to move toward the center hole of the workpiece, a fourth mounting bracket is provided at the front of the top hole mechanism mounting plate, the fourth mounting bracket is connected to a top hole shaft through upper and lower plug-in connections and can penetrate into the center hole of the workpiece, the third mounting bracket is connected to a third hydraulic push rod, the telescopic end of the third hydraulic push rod is detachably connected to a top hole push rod, penetrates into the inner center hole of the top hole shaft and pushes the radially arranged top block to radially eject and penetrate through the side wall plate of the workpiece to form a side hole of the workpiece.

[0008] Preferably, the top hole push rod is sequentially connected with a circular positioning block, a hexagonal limiting shaft section, a cylindrical connecting shaft section and a pushing shaft section, and the front edge of the pushing shaft section is provided with inclined grooves on both sides that are parallel to the side inclined surface of the pushing shaft section; the top block is a cylindrical structure and has arc surfaces at both ends that are flush with the outer circumferential surface of the top hole; one end of the top block is provided with an elliptical protrusion and the other end is provided with an accommodating groove that is slidably connected to the pushing shaft section; the side wall surface of the accommodating groove is provided with a limiting protrusion that can be inserted into the inclined groove and slidably connected; the bottom surface of the accommodating groove is an inclined surface that is slidably connected to the side inclined surface of the pushing shaft section; the telescopic end of the third hydraulic push rod is connected with a push rod positioning block, and the push rod positioning block is provided with a T-shaped groove and simultaneously performs axial and radial limiting with the circular positioning block and the hexagonal limiting shaft section.

[0009] Preferably, the hole trimming mechanism includes a fourth hydraulic push rod connected to the side of the first mounting bracket, and the fourth hydraulic push rod is connected to a downward telescopic shaft with a trimming push block, a semicircular groove is provided at the bottom of the trimming push block, and the trimming push block moves downward and presses against the side hole of the workpiece to initially trim it into a circle.

[0010] Preferably, the reaming mechanism includes a second slide rail group installed on the top surface of the mounting base plate, the top surface of the second slide rail group is slidably connected to a reaming mechanism mounting plate, the side of the reaming mechanism mounting plate is connected to a fifth hydraulic push rod fixed to the top surface of the mounting base plate, the reaming mechanism mounting plate can slide axially relative to the workpiece through the second slide rail group, the top surface of the reaming mechanism mounting plate is connected to a third slide rail group, the top surface of the third slide rail group is slidably connected to a reaming rod mounting seat, one end of the reaming rod can pass through the reaming rod mounting seat and penetrate into the side hole formed by the top of the workpiece to reame into a circle, and the other end of the reaming rod is connected to the telescopic end of the sixth hydraulic push rod fixed to the top surface of the reaming mechanism mounting plate.

[0011] Preferably, the cutting mechanism includes a cutting machine base installed on the top surface of the reaming mechanism mounting plate, the end of the cutting machine base is connected to a driving motor and a transmission, the transmission is connected to the cutting transmission shaft to transmit and drive the cutting head provided at the front end of the cutting machine base to rotate, and the front end of the cutting head is connected to a cutting tool to rotate and flatten the side hole edge structure of the workpiece.

[0012] The present invention also provides a production method using the pressing tee production device, comprising the following steps:

[0013] Step S1: The operator places the workpiece on the top of the lower die, and the telescopic end of the first hydraulic push rod pushes downward and pushes the upper die downward to cooperate with the lower die to clamp and fix the workpiece;

[0014] Step S2: the second hydraulic push rod pushes the top hole mechanism mounting plate to move toward the end of the workpiece and allows the top hole shaft to penetrate into the center hole of the workpiece, and then the third hydraulic push rod pushes the top hole push rod toward the front end of the top hole shaft, and the side inclined surface of the front end of the top hole push rod slides in cooperation with the bottom surface of the groove inside the accommodating groove of the top block, and finally the elliptical protrusion at one end of the top block protrudes from the outer peripheral surface of the top hole shaft and penetrates the outer peripheral surface of the workpiece to form a prototype structure of the side hole of the workpiece;

[0015] Step S3: The fourth hydraulic push rod pushes the trimming push block downward and presses the edge of the side hole of the workpiece through the semicircular groove at the bottom of the trimming push block, the third hydraulic push rod pulls the top hole push rod backward to make the top block withdraw from the side hole of the workpiece, and the second hydraulic push rod pulls the top hole mechanism mounting plate backward to make the top hole shaft withdraw from the center hole of the workpiece, the sixth hydraulic push rod pushes the reaming rod into the side hole of the workpiece and cooperates with the trimming push rod to trim the side hole of the workpiece into a circle;

[0016] Step S4: the sixth hydraulic push rod pulls the reaming rod to move backward and withdraw from the side hole of the workpiece, the fourth hydraulic push rod pulls the shaping push block to move upward and reset, and then the fifth hydraulic push rod pulls the reaming mechanism mounting plate to switch the workstation, at this time, the cutting tool at the end of the cutting tool head rotates and cuts the edge structure of the side hole of the workpiece flush;

[0017] Step S5: After cutting is completed, the fifth hydraulic push rod pushes the reaming mechanism mounting plate along the second slide rail group to reset, the cutting mechanism is reset, and the first hydraulic push rod pulls the upper mold to move upward, so that the processed workpiece is released, and the operator can take out the workpiece for subsequent processing.

[0018] The technical solution of the present invention has the following advantages over the prior art:

[0019] The technical solution of the present invention clamps and fixes the workpiece through a clamping and fixing mechanism, and can penetrate into the center hole of the workpiece and push through the side wall plate of the workpiece through a top hole mechanism to form a prototype structure of the side hole of the workpiece, and the side hole of the workpiece is corrected into a circle through the cooperation of the hole repairing mechanism and the hole expanding structure, and finally the side hole of the workpiece is cut and flattened through the cutting mechanism. Therefore, the technical solution of the present invention can efficiently and reliably stamp the straight-through workpiece into the basic workpiece of the three-way connector.

[0020] At the same time, the top hole push rod of the technical solution of the present invention is provided with a circular positioning block, a hexagonal limiting shaft section, a cylindrical connecting shaft section and a pushing shaft section in sequence from one end to the other end, and the two side surfaces at the front edge position of the pushing shaft section are simultaneously provided with inclined inclined grooves which are parallel to the side inclined surfaces of the pushing shaft section, and the top block is a cylindrical structure and has arc surfaces at both ends which are flush with the outer peripheral surface of the top hole shaft, one end of the top block is provided with an elliptical protrusion, and the other end of the top block is provided with a accommodating groove, and the side wall surface of the accommodating groove is provided with a limiting protrusion which is parallel to the side inclined surface of the pushing shaft section. The inclined grooves are connected in a sliding manner, and the bottom surface of the groove of the accommodating groove is an inclined surface which is slidably connected to the side inclined surface of the pushing shaft segment. In addition, a push rod positioning block is connected to the telescopic end of the third hydraulic push rod, and the push rod positioning block is provided with a T-shaped groove and is axially and radially limited with the circular positioning block and the hexagonal limiting shaft segment. After the top hole push rod is pushed toward the inner center hole of the top hole shaft, the side inclined surface pushes the bottom surface of the groove of the accommodating groove of the top block to move toward the outer periphery of the top hole shaft, and efficiently penetrates the side wall plate of the workpiece to form a prototype structure of the side hole of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the pressing tee production device of the present invention;

[0023] Figure 2 Another three-dimensional structural schematic diagram of the pressing tee production device of the present invention;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of a workpiece of the present invention;

[0025] Figure 4 It is a partial structural schematic diagram of the top hole mechanism of the present invention.

[0026] Description of Figure Numbers:

[0027]

[0028]

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The invention provides a production device and a production method for a pressed tee.

[0034] See also Figures 1 to 4 The pressed tee production device of the embodiment of the present invention includes a clamping and fixing mechanism 2 for clamping and fixing the workpiece 7, a hole-pushing mechanism 3 that can penetrate into the center hole 71 of the workpiece and push through the side wall plate of the workpiece 7 to form a side hole 72 of the workpiece, a hole-repairing mechanism 4 for trimming the side hole 72 of the workpiece, an expanding mechanism 5 for expanding the side hole 72 of the workpiece, and a cutting mechanism for flattening the edge of the side hole 72 of the workpiece.

[0035] The clamping and fixing mechanism 2 of this embodiment includes a first mounting bracket 21 fixedly connected to the mounting base plate 1, a first hydraulic push rod 22 is connected to the top of the first mounting bracket 21, the bottom end of the first hydraulic push rod 22 passes through the top wall plate of the first mounting bracket 21 and is connected to an upper mold 24 at the bottom of the telescopic end, the top surface of the mounting base plate 1 is connected to the lower mold 25 through a supporting block 23, and the top of the upper mold 24 can also be connected to the telescopic end of the first hydraulic push rod 22 and the top of the upper mold 24 by providing another supporting block 23, and the upper mold 24 is pushed downward by the first hydraulic push rod 22 and is molded with the lower mold 25 to fix the workpiece 7. It should be noted that in order to prevent the workpiece 7 from axial displacement after being placed in the accommodating cavity formed by the upper mold 24 and the lower mold 25, this embodiment provides a groove or a step groove structure on the inner wall surface opposite to the upper mold 24 and the lower mold 25 to fit with the outer peripheral surface of the workpiece 7 to play an axial limiting role.

[0036] The top hole mechanism 3 of this embodiment includes a first slide rail group 31 connected to the top surface of the mounting base plate 1, and the first slide rail group 31 includes two parallel linear slide rails, wherein the fixed structure of the linear slide rail is fixedly connected to the top surface of the mounting base plate 1, and the sliding structure of the linear slide rail can slide axially along the fixed structure and relative to the workpiece 7. The top surface of the first slide rail group 31 of the present embodiment is slidably connected to a top hole mechanism mounting plate 32, that is, the sliding structure of the linear slide rail is connected to the bottom surface of the top hole mechanism mounting plate 32, so that the top hole mechanism mounting plate 32 can move axially relative to the workpiece 7, and the top surface of the mounting base plate 1 is connected to a second hydraulic push rod 34 through a second mounting bracket 33. The telescopic end of the second hydraulic push rod 34 is connected to a third mounting bracket 35 fixedly mounted on the top hole mechanism mounting plate 32 and pushes the top hole mechanism mounting plate 32 to move toward the center hole 71 of the workpiece. A fourth mounting bracket 37 is also provided at the front of the top hole mechanism mounting plate 32. The fourth mounting bracket 37 is connected to a top hole shaft 38 which is plugged in and connected to the top hole shaft 38 and can be inserted into the center hole 71 of the workpiece. Specifically, the fourth mounting bracket 37 of the present embodiment is an up-and-down arrangement structure, and a stepped groove 371 is arranged up and down therein, and a stepped protrusion 383 is provided at the end of the top hole shaft 38 of the present embodiment, which can be inserted into the step groove 371 up and down to realize axial limitation of the top hole shaft 38. The third mounting bracket 35 is connected to a third hydraulic push rod 36, and the telescopic end of the third hydraulic push rod 36 is detachably connected to a top hole push rod 39 which penetrates into the workpiece center hole 71 of the top hole shaft 38 and pushes the radially arranged top block 381 to radially penetrate the side wall plate of the workpiece 7 and form a side hole 72 of the workpiece.

[0037] Specifically, the top hole push rod 39 of this embodiment is provided with a circular positioning block 391, a hexagonal limiting shaft section 392, a cylindrical connecting shaft section 393 and a pushing shaft section 394 in sequence from one end to the other end, and the two side surfaces at the front edge position of the pushing shaft section 394 are simultaneously provided with inclined inclined grooves 395 which are parallel to the side inclined surfaces 396 of the pushing shaft section 394, and the top block 381 is a cylindrical structure with arc surfaces at both ends and is flush with the outer peripheral surface of the top hole shaft 38, and one end of the top block 381 is provided with an elliptical protrusion 3812, and the other end of the top block 381 is provided with a receiving groove 3811, and the side wall surface of the receiving groove 3811 is provided with a limiting protrusion 3813 which is parallel to the pushing shaft section 3 94's inclined groove 395 is slidably connected, and the bottom surface of the groove of the accommodating groove 3811 is an inclined surface that is slidably connected to the side inclined surface 396 of the pushing shaft segment 394. In addition, the push rod positioning block 361 connected to the telescopic end of the third hydraulic push rod, the push rod positioning block 361 is provided with a T-shaped groove 3611 and is axially and radially limited with the circular positioning block 391 and the hexagonal limiting shaft segment 392. After the top hole push rod 39 is pushed toward the inner center hole 382 of the top hole shaft 38 through the top hole push rod 39, the side inclined surface 396 pushes the bottom surface of the groove 3811 of the accommodating groove of the top block 381 to move toward the outer periphery of the top hole shaft 38, and pierces the side wall plate of the workpiece 7 to form a prototype structure of the side hole 72 of the workpiece.

[0038] The hole repairing mechanism 4 of this embodiment includes a fourth hydraulic push rod 41 connected to the side of the first mounting bracket 21. The fourth hydraulic push rod 41 is connected to a downward telescopic shaft with a repairing push block 42. A semicircular groove 421 is provided at the bottom of the repairing push block 42. The repairing push block 42 moves downward and presses on the prototype structure of the workpiece side hole 72 just formed on the side of the workpiece 7. Since one end of the top block 381 of this embodiment is an elliptical protrusion 3812, this is to reduce the force required when piercing the side wall plate of the workpiece 7, and enable the workpiece side hole 72 to be formed quickly. The workpiece side hole 72 formed by the elliptical protrusion 3812 at the end of the top block 381 is approximately an elliptical structure in cross section. The repairing push block 42 pushes downward and presses on the prototype structure of the workpiece side hole 72 and makes it initially trimmed from the original ellipse to a nearly circular hole.

[0039] The reaming mechanism 5 of the present embodiment includes a second slide rail group 51 installed on the top surface of the mounting base plate 1. Similarly, the second slide rail group 51 of the present embodiment also includes two parallel linear slide rails. The fixed structure of the linear slide rails is fixedly connected to the top surface of the mounting base plate 1. The top surface of the second slide rail group 51 is slidably connected to the reaming mechanism mounting plate 52, that is, the reaming mechanism mounting plate 52 is connected to the sliding structure of the linear slide rail, and the side of the reaming mechanism mounting plate 52 is connected to the fifth hydraulic push rod 54 fixed to the top surface of the mounting base plate 1. Since the second slide rail group 51 is arranged along the central axis direction of the workpiece 7, the reaming mechanism mounting plate 5 The second slide rail group 51 can slide axially relative to the workpiece 7, the top surface of the hole expansion mechanism mounting plate 52 is connected to the third slide rail group 56, and the top surface of the third slide rail group 56 is slidably connected to the hole expansion rod mounting seat 53, one end of the hole expansion rod 55 can pass through the hole expansion rod mounting seat 53 and penetrate into the side hole 72 of the workpiece for hole expansion and forming, and the other end of the hole expansion rod 55 is connected to the telescopic end of the sixth hydraulic push rod 57 fixed to the top surface of the hole expansion mechanism mounting plate 52, and the sixth hydraulic push rod 57 extends outward, thereby pushing the hole expansion rod 55 to be inserted into the side hole 72 of the workpiece to expand the side hole 72 of the workpiece and become a complete circular hole structure. It should also be noted that the front end of the hole expansion rod 55 can be an inclined structure and the rear part can be a cylindrical structure, so that the hole expansion rod 55 can be more conveniently inserted into the side hole 72 of the workpiece.

[0040] In addition, the cutting mechanism 6 of this embodiment includes a cutting machine base 61 installed on the top surface of the hole expansion mechanism mounting plate 52, and the end of the cutting machine base 61 is connected to a driving motor 63 and a transmission 62, and the transmission 62 is connected to a cutting transmission shaft 64 to drive and drive a cutting head 65 provided at the front end of the cutting machine base, and a cutting knife 651 is connected to the front end of the cutting head 65 to rotate and flatten the edge position of the workpiece side hole 72. When the hole expansion mechanism mounting plate 52 is pulled to move toward the direction of the fifth hydraulic push rod 54 by the fifth hydraulic push rod 54, the cutting head 65 is driven to rotate, and the cutting knife 651 rotates and cuts off the edge structure of the workpiece side hole 72 accordingly, so that the edge of the workpiece side hole 72 can be cut flat, so as to carry out subsequent welding work, and is connected with other components to form a three-way structure.

[0041] See also Figures 1 to 4 The working principle of the pressing tee production device of this embodiment is as follows:

[0042] The operator first places the workpiece 7 that has not yet been top-punched in the top groove of the lower die 25, and uses the internal structure of the groove to position the workpiece 7 to prevent it from axial displacement. Then, the operator pushes the workpiece 7 downward through the telescopic end of the first hydraulic push rod 22, and pushes the upper die 24 downward to cooperate with the lower die 25 to clamp the workpiece 7.

[0043] Then, the second hydraulic push rod 34 is used to push the top hole mechanism mounting plate 32 toward the end of the workpiece 7, and the top hole shaft 38 needs to be inserted into the center hole 71 of the workpiece, and then the third hydraulic push rod 36 is used to push the top hole push rod 39 toward the front end of the top hole shaft 38, so that the side inclined surface 396 at the front end of the top hole push rod 39 and the groove bottom surface of the accommodating groove 3811 at the other end of the top block 381 slide in cooperation, and the top block 381 is provided with an elliptical protrusion 3812 at one end protruding from the outer peripheral surface of the top hole shaft 38 and through continuous force, the elliptical protrusion 3812 penetrates the outer peripheral surface of the workpiece 7 to form the prototype structure of the side hole 72 of the workpiece.

[0044] After the prototype structure of the side hole 72 of the workpiece is formed, the fourth hydraulic push rod 41 pushes the shaping push block 42 to move downward, and the semicircular groove 421 at the bottom of the shaping push block 42 is used to press the edge structure of the side hole 72 of the workpiece, and changes its original elliptical structure into an approximately circular structure. The third hydraulic push rod 36 pulls the top hole push rod 39 to move backward, so that the top block 381 withdraws from the side hole 72 of the workpiece, and then the second hydraulic push rod 34 pulls the top hole mechanism mounting plate 32 to move backward, that is, the top hole shaft 38 withdraws from the center hole 71 of the workpiece. At this time, the sixth hydraulic push rod 57 pushes the reaming rod 55 into the side hole 72 of the workpiece and cooperates with the shaping push block 42 to form a completely circular structure of the side hole 72 of the workpiece, and then the sixth hydraulic push rod 57 pulls the reaming rod 55 to move backward and exit the side hole 72 of the workpiece, and the fourth hydraulic push rod 41 pulls the shaping push block 42 to move upward and reset, and then the fifth hydraulic push rod 54 pulls the reaming mechanism mounting plate 52 to switch the workstation, and at this time, the cutting knife 651 at the end of the cutting head 65 rotates and cuts the edge structure of the side hole 72 of the workpiece flush.

[0045] When cutting is completed, the fifth hydraulic push rod 54 pushes the reaming mechanism mounting plate 52 along the second slide rail group 51 to reset, that is, the cutting mechanism 6 is reset, and finally the first hydraulic push rod 22 pulls the upper mold 24 to move upward, so that the processed workpiece 7 is released, so that the operator can take out the workpiece 7 and perform subsequent processing.

[0046] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pressing tee production device, characterized in that: It includes a clamping and fixing mechanism for clamping and fixing the workpiece, a hole-piercing mechanism that can penetrate the center hole of the workpiece and push through the side wall plate of the workpiece to form a side hole of the workpiece, a hole-repairing mechanism for repairing the side hole of the workpiece, a hole-expanding mechanism for expanding the side hole of the workpiece, and a cutting mechanism for flattening the edge of the side hole of the workpiece; The clamping and fixing mechanism comprises a first mounting bracket fixedly connected to the mounting base plate, a first hydraulic push rod is connected to the top of the first mounting bracket, an upper die is connected to the bottom end of the first hydraulic push rod, the top surface of the mounting base plate is connected to the lower die through a supporting block, and the upper die moves downward through the first hydraulic push rod and closes with the lower die to fix the workpiece; The top hole mechanism comprises a first slide rail group connected to the top surface of the mounting base plate, the top surface of the first slide rail group is slidably connected to a top hole mechanism mounting plate, the top surface of the mounting base plate is connected to a second hydraulic push rod through a second mounting bracket, the telescopic end of the second hydraulic push rod is connected to a third mounting bracket fixedly mounted on the top hole mechanism mounting plate and pushes the top hole mechanism mounting plate to move toward the center hole of the workpiece, a fourth mounting bracket is provided at the front of the top hole mechanism mounting plate, the fourth mounting bracket is plugged and connected with a top hole shaft up and down and can penetrate the center hole of the workpiece, the third mounting bracket is connected to a third hydraulic push rod, the telescopic end of the third hydraulic push rod is detachably connected to the top hole push rod, penetrates the inner center hole of the top hole shaft and pushes the radially arranged top block to radially eject and penetrate the side wall plate of the workpiece to form a side hole of the workpiece; The top hole push rod is sequentially connected with a circular positioning block, a hexagonal limiting shaft section, a cylindrical connecting shaft section and a pushing shaft section, the pushing shaft section is flat, and inclined grooves are arranged on both sides of the front edge of the pushing shaft section and are parallel to the side inclined surface of the pushing shaft section; the top block is a cylindrical structure and has arc surfaces at both ends that are flush with the outer circumferential surface of the top hole shaft, one end of the top block is provided with an elliptical protrusion and the other end is provided with an accommodating groove that is slidably connected to the pushing shaft section, the side wall surface of the accommodating groove is provided with a limiting protrusion that can be inserted into the inclined groove and slidably connected, and the bottom surface of the accommodating groove is an inclined surface that is slidably connected to the side inclined surface of the pushing shaft section; the telescopic end of the third hydraulic push rod is connected with a push rod positioning block, and the push rod positioning block is provided with a T-shaped groove and simultaneously performs axial and radial limiting with the circular positioning block and the hexagonal limiting shaft section; The hole repairing mechanism comprises a fourth hydraulic push rod connected to the side of the first mounting bracket, the fourth hydraulic push rod is connected to a downward telescopic shaft with a shaping push block, a semicircular groove is provided at the bottom of the shaping push block, and the shaping push block moves downward and presses against the side hole of the workpiece to initially trim it into a circular shape; The reaming mechanism includes a second slide rail group installed on the top surface of the mounting base plate, the top surface of the second slide rail group is slidably connected to a reaming mechanism mounting plate, the side of the reaming mechanism mounting plate is connected to a fifth hydraulic push rod fixed to the top surface of the mounting base plate, the reaming mechanism mounting plate can slide axially relative to the workpiece through the second slide rail group, the top surface of the reaming mechanism mounting plate is connected to a third slide rail group, the top surface of the third slide rail group is slidably connected to a reaming rod mounting seat, one end of the reaming rod can pass through the reaming rod mounting seat and penetrate into the side hole formed by the top of the workpiece to reame into a circle, the other end of the reaming rod is connected to the telescopic end of the sixth hydraulic push rod fixed to the top surface of the reaming mechanism mounting plate, the sixth hydraulic push rod pushes the reaming rod into the side hole of the workpiece and cooperates with the shaping push block to form a completely circular structure for the side hole of the workpiece.

2. The pressing tee production device according to claim 1, characterized in that: The cutting mechanism includes a cutting machine base installed on the top surface of the reaming mechanism mounting plate, the end of the cutting machine base is connected to a driving motor and a transmission, the transmission is connected to the cutting transmission shaft to transmit and drive the cutting head provided at the front end of the cutting machine base to rotate, and the front end of the cutting head is connected to a cutting tool that rotates to cut and flatten the edge of the side hole of the workpiece.

3. A production method using the pressing tee production device as claimed in claim 2, characterized in that: The following steps are involved: Step S1: The operator places the workpiece on the top of the lower die, and the telescopic end of the first hydraulic push rod pushes downward and pushes the upper die downward to cooperate with the lower die to clamp and fix the workpiece; Step S2: the second hydraulic push rod pushes the top hole mechanism mounting plate to move toward the end of the workpiece and allows the top hole shaft to penetrate into the center hole of the workpiece, and then the third hydraulic push rod pushes the top hole push rod toward the front end of the top hole shaft, and the side inclined surface of the front end of the top hole push rod slides in cooperation with the bottom surface of the groove inside the accommodating groove of the top block, and finally the elliptical protrusion at one end of the top block protrudes from the outer peripheral surface of the top hole shaft and penetrates the outer peripheral surface of the workpiece to form a prototype structure of the side hole of the workpiece; Step S3: The fourth hydraulic push rod pushes the trimming push block downward and presses the edge of the side hole of the workpiece through the semicircular groove at the bottom of the trimming push block, the third hydraulic push rod pulls the top hole push rod backward to make the top block withdraw from the side hole of the workpiece, and the second hydraulic push rod pulls the top hole mechanism mounting plate backward to make the top hole shaft withdraw from the center hole of the workpiece, the sixth hydraulic push rod pushes the hole expansion rod into the side hole of the workpiece and cooperates with the trimming push block to trim the side hole of the workpiece into a circle; Step S4: the sixth hydraulic push rod pulls the reaming rod to move backward and withdraw from the side hole of the workpiece, the fourth hydraulic push rod pulls the shaping push block to move upward and reset, and then the fifth hydraulic push rod pulls the reaming mechanism mounting plate to switch the workstation, at this time, the cutting tool at the end of the cutting tool head rotates and cuts the edge structure of the side hole of the workpiece flush; Step S5: After cutting is completed, the fifth hydraulic push rod pushes the reaming mechanism mounting plate along the second slide rail group to reset, the cutting mechanism is reset, and the first hydraulic push rod pulls the upper mold to move upward, so that the processed workpiece is released, and the operator can take out the workpiece for subsequent processing.

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