Common die structure of inclined punching hole of collecting pipe and punching method of common die structure

Abstract

The invention provides a common die structure for inclined punching of a collecting pipe and a punching method of the common die structure, and belongs to the technical field of collecting pipe punching equipment. The multi-angle punching machine solves the problem that only one angle hole can be punched at a time when an existing punching machine punches a plurality of angles of a collecting pipe. The common die structure of the inclined punching hole of the collecting pipe comprises a lower die, a fixed seat, a punching die, a punch, an upper die, a die pressing block, a core rod, a boosting assembly, a separating assembly and a positioning sleeve. According to the punching device, when the upper die descends, all the pressing die blocks press the corresponding punching dies at the same time, so that the punches of the punching dies penetrate through the corresponding fixing bases and are inserted into the punching die holes of the corresponding core rods, in the process, the parts, located between the fixing bases and the core rods, of the collecting pipes can be penetrated through by the punches, and therefore punching work of the collecting pipes is completed; therefore, multiple punching work of the collecting pipe can be completed at a time, punching efficiency is improved, the collecting pipe is prevented from being taken for multiple times, and positioning errors are avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of manifold punching equipment, and relates to a common die structure for oblique punching of a manifold and a punching method thereof. Background Art

[0002] In the prior art, when a punching press punches holes in a manifold, usually only one angle of holes can be punched at a time. However, when multiple holes need to be punched in the manifold, the manifold after one punching operation has to be taken out of the punching press, and then put back into the punching press to punch holes at another position of the manifold. This process relies entirely on manual operation, which is cumbersome. In addition, during the process of punching holes in the manifold, the manifold is usually directly placed between the upper die and the lower die, and no automatic positioning device for the manifold is provided. As a result, problems such as inaccurate positioning and unstable punching of the manifold are likely to occur. Summary of the Invention

[0003] The object of the present invention is to address the above problems existing in the prior art, and propose a common die structure and a punching method thereof that are simple to operate, have a high degree of automation, can punch multiple angles of holes in a manifold at one time, and can position and fix the manifold.

[0004] The object of the present invention can be achieved by the following technical solutions: A common die structure for oblique punching of a manifold, comprising:

[0005] A lower die, on which a plurality of fixed seats are provided, and on each fixed seat, a punching die is provided. The punching die is parallel or intersects with the normal line of the lower die. On each punching die, a punch is provided, and the punch is inserted into the corresponding fixed seat, and the punch is perpendicular to the bottom surface of the punching die;

[0006] An upper die, movably arranged directly above the lower die, and on the upper die, a pressing module corresponding to the punching die is provided;

[0007] At least two mandrels, both arranged on the lower die, and each mandrel passes through the corresponding fixed seat. On the upper die, a boosting component corresponding to the number of mandrels is provided. On one side of the lower die, a disengaging component is provided, and on the disengaging component, a positioning sleeve corresponding to the number of mandrels is provided. During the process of the boosting component descending with the upper die, the boosting component pushes the manifold towards the positioning sleeve until the manifold is clamped by the positioning sleeve and the boosting component; the mandrel passes through the positioning sleeve, and the positioning sleeve can move relative to the mandrel; when the pressing module presses the punching die, the punch is inserted into the mandrel.

[0008] In the above common die structure for oblique punching of a manifold, the punching die includes a mounting plate, a punching block, and a pressing block arranged successively from bottom to top. The mounting plate is connected to the corresponding fixed seat by first studs. Each first stud is provided with a first guide post. The first guide post movably passes through the punching block and the pressing block. One end of the punch is connected to the punching block. The punch movably passes through the mounting plate, and the punch is perpendicular to the mounting plate.

[0009] In the above common die structure for oblique punching of a manifold, the diameter of the end of the first guide post away from the first stud is larger than the diameter of the middle part of the first guide post, and the diameter of the other end of the first guide post is the same as the diameter of the middle part of the first guide post. The pressing block is provided with a first through hole for the first guide post to pass through, and the punching block is provided with a second through hole for the first guide post to pass through. The diameter of the first through hole is larger than the inner diameter of the second through hole, and the inner diameter of the second through hole is the same as the diameter of the middle part of the first guide post. A first spring is provided between the mounting plate and the punching block.

[0010] In the above common die structure for oblique punching of a manifold, the fixed seat is provided with a connecting surface connected to the mounting plate, and this connecting surface can be inclined relative to the lower die or parallel to the lower die.

[0011] In the above common die structure for oblique punching of a manifold, the bottom of the pressing module is provided with a pressing die surface, and this pressing die surface can be inclined relative to the lower die or parallel to the lower die.

[0012] In the above common die structure for oblique punching of a manifold, an extension plate for installing a separating component is provided on one side of the lower die. The extension plate is provided with a fixed table for installing one end of a mandrel, and the separating component movably passes through the fixed table.

[0013] In the above common die structure for oblique punching of a manifold, the separating component includes a plurality of separating rods movably passing through the fixed table and a separating cylinder body for pushing the separating rods to move. One ends of the plurality of separating rods are connected by a push block, and the other ends of the plurality of separating rods are connected by a connecting plate. The separating cylinder body is used to drive the push block to move.

[0014] In the above common die structure for oblique punching of a manifold, the connecting plate is provided with a clamping plate for installing a positioning sleeve. One end of the positioning sleeve is inserted into the clamping plate. A pressing plate is installed on each clamping plate. A convex block is provided at one end of the positioning sleeve close to the connecting plate, and the convex block is clamped into the pressing plate. The connecting plate is provided with a plurality of clamping strips, and the fixed table is provided with clamping grooves corresponding to the clamping strips.

[0015] In the above-mentioned common die structure for the inclined punching of the manifold, a boosting groove corresponding to the boosting component is provided on the lower die. Each boosting component includes a boosting plate provided on the upper die. A boosting block is provided on the boosting plate. The bottom of the side of the boosting block away from the boosting plate is provided with a boosting surface, and the boosting surface is inclined relative to the boosting block.

[0016] A stamping method for the above-mentioned common die structure for the inclined punching of the manifold includes:

[0017] Step 1: Sleeve the manifold on the corresponding mandrel, and push the manifold to move along the trajectory of the mandrel towards the positioning sleeve until the end of the manifold abuts against the positioning sleeve.

[0018] Step 2: Drive the upper die to move towards the lower die. During this process, the boosting component pushes the manifold to move towards the positioning sleeve until the manifold is clamped by the positioning sleeve and the boosting component.

[0019] Step 3: After the manifold is clamped by the positioning sleeve and the boosting component, the pressing module squeezes the corresponding punching die, so that the punch of the punching die passes through the corresponding fixing seat and inserts into the corresponding mandrel. During this process, the part of the manifold located between the fixing seat and the mandrel will be penetrated by the punch.

[0020] Step 4: After the manifold is punched, drive the upper die to rise to a predetermined height.

[0021] Step 5: The separating component drives each positioning sleeve to move on the surface of the mandrel to push the manifold on the mandrel to move.

[0022] Step 6: After the positioning sleeve moves to the predetermined displacement, the separating component drives the positioning sleeve to reset. At this time, take off the manifold.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the present invention, when the upper die descends, each pressing module simultaneously presses the corresponding punching die, so that the punch of the punching die passes through the corresponding fixing seat and inserts into the punching die hole of the corresponding mandrel. During this process, the part of the manifold located between the fixing seat and the mandrel will be penetrated by the punch, thereby completing the punching work of the manifold. In this way, the punching work of multiple-angle holes of the manifold can be completed at one time, thereby improving the punching efficiency. Secondly, it also avoids taking the manifold multiple times and avoids positioning errors.

[0025] 2. In the present invention, the normal lines of the punching die and the lower die are parallel to each other or intersect, and the punch is perpendicular to the bottom surface of the punching die, so that when punching the manifold, the punch can not only punch holes in the vertical direction of the manifold, but also punch holes in the oblique direction of the manifold, and the vertical punching and the oblique punching are completed synchronously. In this way, the punching efficiency of the manifold can be further improved, and the punching of the manifold in different directions can also be realized.

[0026] 3. During the process of the boosting component of the present invention descending with the upper die, the boosting component will push the manifold towards the positioning sleeve until the manifold is clamped by the positioning sleeve and the boosting component, so as to ensure that the manifold is pushed to a predetermined position before punching, and the two ends of the manifold are clamped, so that the manifold can be stably punched by the punching die and accurately positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present invention.

[0028] Figure 2 It is a schematic structural diagram of the punching die.

[0029] Figure 3 It is Figure 2 The schematic structural diagram after removing the mounting plate.

[0030] Figure 4 It is a combined diagram of the punching block and the pressing block.

[0031] Figure 5 It is a schematic structural diagram of the upper die.

[0032] Figure 6 It is a schematic structural diagram of the upper die from another perspective.

[0033] Figure 7 It is Figure 1 The schematic structural diagram after removing the upper die, the punching die and the fixing seat.

[0034] Figure 8 It is a combined diagram of the fixing table and the mandrel.

[0035] Figure 9 It is a combined diagram of the separating component and the positioning sleeve.

[0036] In the figure, the lower die 100, the fixed seat 110, the connecting surface 111, the mandrel 120, the die hole 121, the extension plate 130, the fixed table 131, the engaging groove 131a, the boosting groove 140, the lower limit post 150, the punching die 200, the punch 210, the mounting plate 220, the punching block 230, the second through hole 231, the pressing block 240, the first through hole 241, the first stud 250, the first guide post 251, the first spring 260, the upper die 300, the pressing die block 310, the pressing die surface 311, the upper limit post 320, the boosting assembly 400, the boosting plate 410, the boosting block 420, the boosting surface 421, the separating assembly 500, the positioning sleeve 510, the convex block 511, the separating rod 520, the separating cylinder block 530, the pushing block 540, the connecting plate 550, the engaging strip 551, the engaging plate 570, the pressing plate 571, and the manifold 600. Detailed implementation manners

[0037] The following are specific embodiments of the present invention and, in conjunction with the accompanying drawings, further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0038] Embodiment 1

[0039] As Figures 1 to 9 shown, a common die structure for oblique punching of a manifold according to the present invention includes a lower die 100, a fixed seat 110, a punching die 200, a punch 210, an upper die 300, a pressing die block 310, a mandrel 120, a boosting assembly 400, a separating assembly 500, and a positioning sleeve 510.

[0040] In the present invention, a die hole 121 corresponding to the punch 210 is provided on the mandrel 120.

[0041] The lower die 100 is provided with a plurality of fixing seats 110, and each fixing seat 110 is provided with a punching die 200. The punching die 200 is parallel or intersects with the normal line of the lower die 100. Each punching die 200 is provided with a punch head 210, and the punch head 210 is inserted into the corresponding fixing seat 110. The punch head 210 is perpendicular to the bottom surface of the punching die 200. The upper die 300 is movably arranged directly above the lower die 100, and the upper die 300 is provided with a pressing module 310 corresponding to the punching die 200. The present invention is provided with at least two mandrels 120, each mandrel 120 is arranged on the lower die 100, each mandrel 120 passes through the corresponding fixing seat 110, the upper die 300 is provided with a boosting assembly 400 corresponding to the number of mandrels 120, one side of the lower die 100 is provided with a separating assembly 500, and the separating assembly 500 is provided with positioning sleeves 510 corresponding to the number of mandrels 120. The mandrel 120 passes through the positioning sleeve 510, and the positioning sleeve 510 can move relative to the mandrel 120;When punching the manifold 600, the manifold 600 needs to be sleeved on the corresponding mandrel 120 first, and the manifold 600 is pushed to move along the trajectory of the mandrel 120 towards the positioning sleeve 510 until the end of the manifold 600 abuts against the positioning sleeve 510. After that, the upper die 300 in the initial position is driven to move towards the lower die 100. During this process, the boosting assembly 400 pushes the manifold 600 towards the positioning sleeve 510 until the manifold 600 is clamped by the positioning sleeve 510 and the boosting assembly 400. When the manifold 600 is clamped by the positioning sleeve 510 and the boosting assembly 400, the pressing module 310 presses the corresponding punching die 200 so that the punch 210 passes through the corresponding fixing seat 110 and inserts into the punching die hole 121 of the corresponding mandrel 120. During this process, the part of the manifold 600 located between the fixing seat 110 and the mandrel 120 will be penetrated by the punch 210, thus completing the punching work of the manifold 600. When the punching of the manifold 600 is completed, the upper die 300 is driven to rise to a predetermined height, that is, the upper die 300 is driven to reset to the initial position. After that, the disengaging assembly 500 drives each positioning sleeve 510 to move on the surface of the mandrel 120 to push the manifold 600 on the mandrel 120 to move. In this way, one end of the manifold 600 far from the positioning sleeve 510 will be separated from the mandrel 120. When the positioning sleeve 510 moves to the predetermined displacement, the disengaging assembly 500 drives the positioning sleeve 510 to reset. At this time, people can hold one end of the manifold 600 far from the positioning sleeve 510 and smoothly remove the manifold 600. In this way, the punching work of the manifold 600 can be completed. Further, because the normal lines of the punching die 200 and the lower die 100 are parallel or intersect with each other, and the punch 210 is perpendicular to the bottom surface of the punching die 200, when punching the manifold 600, the punch 210 can not only punch in the vertical direction of the manifold 600, but also punch in the oblique direction of the manifold 600, and the vertical punching and the oblique punching are completed synchronously. In this way, the punching efficiency of the manifold 600 can be further improved.;

[0042] Further, the technician can select a suitable fixing seat 110 according to the punching position of the manifold 600 and install the fixing seat 110 at a predetermined position of the lower die 100 so that the punching position of the manifold 600 can meet the production requirements.

[0043] Such as Figures 1 to 5As shown, the punching die 200 includes a mounting plate 220, a punching block 230, and a pressing block 240 that are sequentially arranged from bottom to top. The mounting plate 220 is connected to the corresponding fixed seat 110 through a first stud 250. The punching block 230 and the pressing block 240 are welded or connected by bolts. Each first stud 250 is provided with a first guide post 251. The first guide post 251 movably passes through the punching block 230 and the pressing block 240. One end of the punch 210 is connected to the punching block 230. The punch 210 movably passes through the mounting plate 220, and the punch 210 is perpendicular to the mounting plate 220. Specifically, a first spring 260 is provided between the mounting plate 220 and the punching block 230. When the punching die 200 is not in use, due to the elastic force of the first spring 260, there is a gap between the mounting plate 220 and the punching block 230. When the punching die 200 is squeezed by the pressing module 310, the pressing module 310 will first squeeze the pressing block 240 and the punching block 230. One end of the punch 210 is connected to the punching block 230, so that the pressing block 240 and the punching block 230 will move towards the mounting plate 220. At the same time, the punch 210 passes through the manifold 600 and inserts into the punching die hole 121 of the mandrel 120. The first spring 260 is compressed under force. And when the punching block 230 abuts against the mounting plate 220, the punching is completed. During this process, since the diameter of the end of the first guide post 251 away from the first stud 250 is larger than the diameter of the middle part of the first guide post 251, the diameter of the other end of the first guide post 251 is the same as the diameter of the middle part of the first guide post 251. The pressing block 240 is provided with a first through hole 241 for the first guide post 251 to pass through. The punching block 230 is provided with a second through hole 231 for the first guide post 251 to pass through. The diameter of the first through hole 241 is larger than the inner diameter of the second through hole 231. The inner diameter of the second through hole 231 is the same as the diameter of the middle part of the first guide post 251, so that the pressing block 240 and the punching block 230 can move directionally along the trajectory of the first guide post 251, thereby ensuring that the punch 210 can be smoothly inserted into the punching die hole 121 of the mandrel 120. When the pressing module 310 rises with the upper die 300, the pressing module 310 no longer squeezes the pressing block 240. The pressing block 240 and the punching block 230 are affected by the elastic force of the first spring 260 and will move in a direction away from the mounting plate 220. During this process, the pressing block 240 and the punching block 230 will still move along the trajectory of the first guide post 251 until the end of the first guide post 251 away from the first stud 250 abuts against the punching block 230. In this way, it can prevent the pressing block 240 and the punching block 230 from detaching from the mounting plate 220.

[0044] The fixing base 110 is provided with a connecting surface 111 connected to the mounting plate 220. The connecting surface 111 can be inclined relative to the lower die 100 or parallel to the lower die 100. The bottom of the pressing module 310 is provided with a pressing die surface 311. The pressing die surface 311 can be inclined relative to the lower die 100 or parallel to the lower die 100. Specifically, when the connecting surface 111 is inclined relative to the lower die 100, the pressing die surface 311 is also inclined relative to the lower die 100. When the connecting surface 111 is parallel to the lower die 100, the pressing die surface 311 is parallel to the lower die 100. In this way, when the pressing module 310 presses the punching die 200, the pressing die surface 311 can fit the surface of the pressing block 240 away from the punching block 230, so that the punch 210 is more stable during the punching process.

[0045] As Figure 1 and Figures 5 to 9 shown, an extension plate 130 for installing the separating component 500 is provided on one side of the lower die 100. A fixing platform 131 for installing one end of the mandrel 120 is provided on the extension plate 130. The separating component 500 movably passes through the fixing platform 131. A cut surface (not marked in the figure) is provided on the side surface of the mandrel 120. When installing the mandrel 120, one end of the mandrel 120 needs to pass through the corresponding fixing base 110 and be inserted into the fixing platform 131, and the cut surface fits the inner wall of the fixing platform 131. In this way, the cut surface on the surface of the mandrel 120 can prevent the mandrel 120 from rotating around its central axis. Then, the mandrel 120 and the fixing platform 131 are fixed by bolts, and one end of the mandrel 120 can be positioned and installed on the fixing platform 131.

[0046] The separating component 500 includes a plurality of separating rods 520 movably passing through the fixed table 131 and a separating cylinder block 530 for pushing the separating rods 520 to move. One ends of the plurality of separating rods 520 are connected by a pushing block 540, and the other ends of the plurality of separating rods 520 are connected by a connecting plate 550. The separating cylinder block 530 is used to drive the pushing block 540 to move. The connecting plate 550 is provided with a clamping plate 570 for installing the positioning sleeve 510. One end of the positioning sleeve 510 is inserted into the clamping plate 570. A pressing plate 571 is installed on each clamping plate 570. A convex block 511 is provided on the end of the positioning sleeve 510 close to the connecting plate 550. The convex block 511 is clamped into the pressing plate 571. The connecting plate 550 is provided with a plurality of clamping strips 551, and the fixed table 131 is provided with a clamping groove 131a corresponding to the clamping strips 551. After the punching is completed and the upper die 300 rises to a predetermined height, the separating cylinder block 530 drives the pushing block 540 to move relative to the extension plate 130, so that the separating rods 520 move relative to the fixed table 131. The positioning sleeve 510 is connected to the connecting plate 550 through the matching structure of the clamping plate 570 and the pressing plate 571. One ends of the plurality of separating rods 520 are connected by the connecting plate 550. The separating rods 520 are parallel to the mandrel 120 and do not contact each other, so that the positioning sleeve 510 moves synchronously with the separating rods 520, so that the positioning sleeve 510 can push the manifold 600 on the mandrel 120 away from the fixed table 131, and then the end of the manifold 600 away from the positioning sleeve 510 is separated from the mandrel 120, which is convenient for people to take.

[0047] Further, during the installation process, people need to insert the end of the positioning sleeve 510 with the convex block 511 into the notch (not marked in the figure) of the clamping plate 570. Then, the pressing plate 571 is clamped into the notch, and the pressing plate 571 and the clamping plate 570 are connected by bolts. In this way, the convex block 511 will be clamped into the pressing plate 571, so that the end of the positioning sleeve 510 with the convex block 511 is stably connected to the clamping plate 570. Secondly, through the action of the convex block 511, the positioning sleeve 510 can also be prevented from rotating around its central axis.

[0048] The lower die 100 is provided with a boosting groove 140 corresponding to the boosting assembly 400. Each boosting assembly 400 includes a boosting plate 410 provided on the upper die 300. A boosting block 420 is provided on the boosting plate 410. A boosting surface 421 is provided at the bottom of the side of the boosting block 420 away from the boosting plate 410. The boosting surface 421 is inclined relative to the boosting block 420. When the upper die 300 descends, the boosting block 420 and the boosting plate 410 will descend synchronously with the upper die 300. And when one end of the manifold 600 away from the positioning sleeve 510 abuts against the boosting surface 421, because the boosting surface 421 is inclined relative to the boosting block 420, the plane where the boosting block 420 is located is perpendicular to the straight line where the mandrel 120 is located. Therefore, the boosting surface 421 will push the manifold 600 to move towards the positioning sleeve 510 until the surface of the boosting block 420 facing the manifold 600 contacts the end of the manifold 600. In this way, it can be ensured that one end of the manifold 600 away from the boosting block 420 abuts against the positioning sleeve 510, that is, the manifold 600 can be clamped by the positioning sleeve 510 and the boosting block 420, thereby avoiding the situation that the manifold 600 moves on the mandrel 120 during the punching process; further, when one end of the manifold 600 abuts against the positioning sleeve 510, the other end of the manifold 600 and the end of the mandrel 120 away from the positioning sleeve 510 are on the same vertical plane. Therefore, the mandrel 120 will not interfere with the boosting block 420. Secondly, because when the lower die 100 descends, the technician has made one end of the manifold 600 abut against the positioning sleeve 510 to realize the end positioning of the manifold 600. Therefore, the other end of the manifold 600 will not interfere with the descent of the boosting block 420. Instead, the boosting block 420 applies a force to the manifold 600 towards the positioning sleeve 510 through the boosting surface 421 to avoid a gap between the manifold 600 and the positioning sleeve 510; further, when the punch 210 punches the manifold 600, the boosting block 420 will contact the end of the manifold 600, and the part exceeding the manifold 600 will be embedded in the boosting groove 140 to prevent the lower die 100 from interfering with the boosting block 420.

[0049] A plurality of lower limit posts 150 are provided on the lower die 100, and upper limit posts 320 corresponding to the lower limit posts 150 are provided on the upper die 300. During the descent of the upper die 300, when the lower limit post 150 abuts against the corresponding upper limit post 320, the upper die 300 stops descending to ensure the descent stroke of the lower die 100.

[0050] A top plate (not marked in the figure) is provided at the top surface of the upper die 300, a top seat (not marked in the figure) is provided above the top plate, a base (not marked in the figure) is provided at the bottom surface of the lower die 100, the top seat and the base are connected by a plurality of guide rods (not marked in the figure), a lifting cylinder body (not marked in the figure) is provided on the top seat, the guide rods pass through the top plate, and the lifting cylinder body can drive the top plate to lift along the trajectory of the guide rods to realize the lifting of the upper die 300 relative to the lower die 100.

[0051] Embodiment 2

[0052] As Figures 1 to 9 shown, this embodiment is a stamping method for a common die structure of oblique punching of a manifold 600, including:

[0053] Step 1: Ensure that the upper die 300 is in the initial position, and ensure that the engaging strip 551 is engaged in the corresponding engaging groove 131a. Then, sleeved the manifold 600 on the corresponding mandrel 120, and push the manifold 600 along the trajectory of the mandrel 120 towards the positioning sleeve 510 until the end of the manifold 600 abuts against the positioning sleeve 510;

[0054] Step 2: Drive the upper die 300 to move towards the lower die 100. When the upper die 300 descends to a predetermined height and the end of the manifold 600 away from the positioning sleeve 510 abuts against the boosting surface 421, the boosting surface 421 will push the manifold 600 towards the positioning sleeve 510 until the surface of the boosting block 420 facing the manifold 600 contacts the end of the manifold 600, so that the manifold 600 can be clamped by the positioning sleeve 510 and the boosting block 420 to prevent the manifold 600 from moving on the mandrel 120 during the punching process;

[0055] Step 3: After the manifold 600 is clamped by the positioning sleeve 510 and the boosting block 420, the pressing module 310 presses the pressing block 240 and the punching block 230 of the corresponding punching die 200, and one end of the punch 210 is connected to the punching block 230, so that the pressing block 240 and the punching block 230 will move towards the mounting plate 220. At the same time, the punch 210 passes through the manifold 600 and inserts into the punching die hole 121 of the mandrel 120, the first spring 260 is compressed under force, and the gap between the punching block 230 and the mounting plate 220 decreases. During this process, the part of the manifold 600 located between the fixed seat 110 and the mandrel 120 will be penetrated by the punch 210, and when the punching block 230 abuts against the mounting plate 220, the punching is completed;

[0056] Step 4: After the manifold 600 is punched, drive the upper die 300 to rise to a predetermined height through the lifting cylinder body, that is, drive the upper die 300 to reset to the initial position;

[0057] Step 5: The separation cylinder block 530 drives the push block 540 to move relative to the extension plate 130, so that the separation rod 520 moves relative to the fixed platform 131. The positioning sleeve 510 is connected to the connecting plate 550 through the cooperation structure of the engaging plate 570 and the pressing plate 571. One ends of multiple separation rods 520 are connected through the connecting plate 550. The separation rod 520 is parallel to and does not contact the mandrel 120, so that the positioning sleeve 510 moves synchronously with the separation rod 520, so that the positioning sleeve 510 can push the manifold 600 on the mandrel 120 away from the fixed platform 131, thereby realizing the separation of the end of the manifold 600 away from the positioning sleeve 510 from the mandrel 120.

[0058] Step 6: When the positioning sleeve 510 moves to the predetermined displacement, that is, when the push block 540 abuts against the fixed platform 131, the separation cylinder block 530 drives the positioning sleeve 510 to move in the reverse direction until the engaging strip 551 snaps into the corresponding engaging groove 131a and the connecting plate 550 abuts against the fixed platform 131. During this process, people can remove the manifold 600 from the corresponding mandrel 120.

[0059] Through the above stamping method with a common mode structure, the punching work of the manifold 600 can be realized without manual punching. On the basis of this method, when the normal lines of the punching die 200 and the lower die 100 are parallel or intersect with each other, not only can the manifold 600 be punched in the vertical direction, but also the manifold 600 can be punched in the oblique direction, and the vertical punching and the oblique punching are completed synchronously. In this way, the punching efficiency of the manifold 600 can be further improved.

[0060] It should be noted that all directional indicators (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indicators will also change accordingly.

[0061] In addition, in the present invention, descriptions such as "first", "second", and "one" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0062] In the present invention, unless otherwise clearly specified or limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

Claims

1. A common-mode structure for oblique punching of a manifold, characterized in that, Including: A lower die, on which a plurality of fixing seats are provided, and on each fixing seat, a punching die is provided. The punching die is parallel or intersects with the normal line of the lower die. On each punching die, a punch is provided, and the punch is inserted into the corresponding fixing seat, and the punch is perpendicular to the bottom surface of the punching die. An upper die, movably arranged directly above the lower die, and on the upper die, a pressing module corresponding to the punching die is provided. At least two mandrels, both arranged on the lower die, and each mandrel passes through the corresponding fixing seat. On the upper die, a boosting component corresponding to the number of mandrels is provided. On one side of the lower die, a separating component is provided, and on the separating component, positioning sleeves corresponding to the number of mandrels are provided. During the process of the boosting component descending with the upper die, the boosting component pushes the manifold tube towards the positioning sleeve until the manifold tube is clamped by the positioning sleeve and the boosting component. The mandrel passes through the positioning sleeve, and the positioning sleeve can move relative to the mandrel. When the pressing module presses the punching die, the punch is inserted into the mandrel.

2. The common-mode structure of the manifold with inclined punching holes according to claim 1, characterized in that, The punching die includes a mounting plate, a punching block, and a pressing block arranged in sequence from bottom to top. The mounting plate is connected to the corresponding fixing seat through a first stud. On each first stud, a first guide post is provided, and the first guide post movably passes through the punching block and the pressing block. One end of the punch is connected to the punching block, and the punch movably passes through the mounting plate, and the punch is perpendicular to the mounting plate.

3. The common mode structure of the manifold with inclined punching holes according to claim 2, characterized in that, The diameter of the end of the first guide post far from the first stud is larger than the diameter of the middle part of the first guide post, and the diameter of the other end of the first guide post is the same as the diameter of the middle part of the first guide post. A first through hole for the first guide post to pass through is provided in the pressing block, and a second through hole for the first guide post to pass through is provided in the punching block. The diameter of the first through hole is larger than the inner diameter of the second through hole, and the inner diameter of the second through hole is the same as the diameter of the middle part of the first guide post. A first spring is provided between the mounting plate and the punching block.

4. A common-mode structure for oblique punching of a manifold, according to claim 2 or 3, characterized in that The fixing seat is provided with a connecting surface connected to the mounting plate, and this connecting surface can be inclined relative to the lower die or parallel to the lower die.

5. A common mode structure for oblique punching of a manifold, according to claim 1 or 2 or 3, characterized in that The bottom of the pressing module is provided with a pressing surface, and this pressing surface can be inclined relative to the lower die or parallel to the lower die.

6. The common-mode structure of the manifold with inclined punching holes according to claim 1, characterized in that On one side of the lower die, an extension plate for installing the separating component is provided, and on the extension plate, a fixing platform for installing one end of the mandrel is provided, and the separating component movably passes through the fixing platform.

7. The common mode structure of the manifold with inclined punching holes according to claim 6, characterized in that, The separating component includes a plurality of separating rods movably passing through the fixing platform and a separating cylinder body for pushing the separating rods to move. One ends of the plurality of separating rods are connected through a push block, and the other ends of the plurality of separating rods are connected through a connecting plate, and the separating cylinder body is used to drive the push block to move.

8. A common-mode structure for oblique punching of a manifold, characterized in that, according to claim 7, The connecting plate is provided with a clamping plate for installing the positioning sleeve. One end of the positioning sleeve is inserted into the clamping plate. On each clamping plate, a pressing plate is installed. On the end of the positioning sleeve close to the connecting plate, a convex block is provided, and the convex block is clamped into the pressing plate. The connecting plate is provided with a plurality of clamping strips, and the fixing platform is provided with clamping grooves corresponding to the clamping strips.

9. A common mode structure for oblique punching of a manifold, characterized in that, The lower die is provided with a boosting groove corresponding to the boosting assembly. Each boosting assembly includes a boosting plate provided on the upper die. The boosting plate is provided with a boosting block. The bottom of the side of the boosting block away from the boosting plate is provided with a boosting surface, and the boosting surface is inclined relative to the boosting block.

10. A stamping method for a common die structure of oblique punching of a manifold according to any one of claims 1 to 9, characterized in that, Including: Step 1: Sleeve the manifold on the corresponding mandrel, and push the manifold to move along the trajectory of the mandrel towards the positioning sleeve until the end of the manifold abuts against the positioning sleeve. Step 2: Drive the upper die to move towards the lower die. During this process, the boosting assembly pushes the manifold to move towards the positioning sleeve until the manifold is clamped by the positioning sleeve and the boosting assembly. Step 3: When the manifold is clamped by the positioning sleeve and the boosting assembly, the pressing module presses the corresponding punching die so that the punch passes through the corresponding fixing seat and inserts into the corresponding mandrel. During this process, the part of the manifold located between the fixing seat and the mandrel will be penetrated by the punch. Step 4: When the punching of the manifold is completed, drive the upper die to rise to a predetermined height. Step 5: The disengaging assembly drives each positioning sleeve to move on the surface of the mandrel to push the manifold on the mandrel to move. Step 6: When the positioning sleeve moves to the predetermined displacement, the disengaging assembly drives the positioning sleeve to reset. At this time, remove the manifold.

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