High-precision valve body forming device

By employing a liftable punch and clamping mechanism in the forming device, the valve body blank is clamped and pressed simultaneously from both sides and above, solving the problem of deformation of thin-walled valve body blanks and realizing high-precision valve body forming and diversified production.

CN223588121UActive Publication Date: 2025-11-25XINXIANG JINGZHAN ELECTROMECHANICAL EQUIP ENG CO LTD
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Patent Information

Application Number
CN202423237006.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-11-25
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

Existing forming devices often use excessive clamping force when holding thin-walled valve body blanks, which can easily lead to blank deformation and affect the forming quality of the valve body.

Method used

The device employs a liftable punch and clamping mechanism, including a movable clamping part and a pressing part. By simultaneously clamping and pressing the valve body blank from both sides and above, it ensures uniform force distribution and prevents deformation.

Benefits of technology

It achieves high-precision stamping of valve bodies, improves the quality of forming and processing, is suitable for the production of valve bodies of different thicknesses and diameters, and enhances the applicability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of valve body forming devices, and discloses a high-precision valve body forming device which comprises a machine frame, a female die and a supporting frame, the female die and the supporting frame are arranged on the machine frame, a liftable male die is arranged on the supporting frame, and a clamping mechanism for clamping and fixing a blank on the female die is arranged on the machine frame. The clamping mechanism comprises two clamping parts which can move relatively, each clamping part comprises a supporting block, and the top of each supporting block is connected with a clamping block; a pressing part is further arranged on the clamping block; according to the utility model, the pressing part is arranged on the clamping part, so that not only can precise positioning of blanks and high-precision punch forming of valve bodies be realized, but also two sides and the tops of the blanks can be synchronously stressed, the blanks with different thicknesses can be uniformly stressed when being clamped, and the phenomenon that the blanks are not damaged when the blanks are thin is avoided. And therefore, the forming and processing quality of the valve body can be improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to valve body forming device technical field, especially point to a kind of high-precision valve body forming device. BACKGROUND

[0002] Valve body is one main component in valve, and there are different mechanical manufacturing methods according to pressure grade, mainly including casting, forging, cold stamping and other methods, and when the existing forming method using cold stamping, generally, valve body blank is formed into valve body shape by forming device, and then further processing is carried out, to realize the production and manufacturing of valve body.

[0003] When the existing forming device is stamping formed into valve body blank, valve body blank is usually clamped on concave die, and the concave die has the same cavity as valve body shape, and then the male die is driven to descend by hydraulic structure, to stamp and form valve body blank by the cooperation of male die and concave die, but when valve body blank is clamped on concave die, clamping structure is usually used to clamp both sides of valve body blank, however, with the difference of valve body caliber, the wall thickness also exists difference, and when thinner valve body blank is clamped, only clamping both sides, if clamping force is too large, valve body blank is easily deformed, thereby affecting the forming and processing quality of valve body. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a kind of high-precision valve body forming device, to solve the problem that when the existing clamping structure is used to clamp both sides of valve body blank, if valve body blank is thinner, clamping force is too large, valve body blank is easily deformed, and the forming and processing quality of valve body is affected.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of high-precision valve body forming device, including rack and being set on the concave die and support frame of rack, the support frame is provided with the male die of lift, and the male die corresponds with the concave die, the rack is provided with the clamping mechanism of blank clamping and being fixed on the concave die;

[0006] The clamping mechanism includes two clamping parts that can move relative to each other, and each clamping part includes a support block, and the top of the support block is connected to a clamping block.

[0007] The clamping block is also provided with a pressing part, and the pressing part includes a cavity groove opened on one side of the clamping block and an adjusting screw rod screwed on the clamping block, the inside of the cavity groove is provided with a pressing block, one end of the pressing block extends to the outside of the cavity groove, and one end of the adjusting screw rod extends into the inside of the cavity groove and is rotationally connected with the pressing block.

[0008] Preferably, a guide rail is installed on the inner wall of the clamping block, and the guide rail is in the cavity groove, and a guide rail groove is opened on one side of the pressing block and cooperates with the guide rail.

[0009] Preferably, the adjusting screw is provided with an adjusting hand wheel at one end away from the pressing block.

[0010] Preferably, the clamping mechanism further comprises a driving part for driving the relative movement of the two clamping parts, and the driving part comprises a mounting cavity provided in the frame, a motor fixed to one side of the frame, a bidirectional screw rod provided in the mounting cavity, two screw rod seats threadedly connected to the two threaded segments of the bidirectional screw rod, and a slot provided in the frame for the movement of the two screw rod seats, the top ends of the two screw rod seats penetrating through the slot and being fixedly connected to the bottoms of the corresponding support blocks.

[0011] Preferably, two sliding rails are further provided in the mounting cavity, and the bottoms of the two screw rod seats are provided with sliding grooves matched with the sliding rails.

[0012] Preferably, the bottom end of the clamping block is further provided with a connecting block, the support block is provided with a receiving cavity for the insertion of the connecting block, a locking screw is screwed to the top of the support block, and the connecting block is provided with a plurality of locking screw holes equidistantly distributed along the height direction of the connecting block.

[0013] Preferably, a hydraulic cylinder is mounted to the top of the support frame, a die seat is fixedly connected to the bottom end of the piston rod of the hydraulic cylinder, retractable auxiliary rods are connected between the four corners of the top of the die seat and the support frame, notches corresponding to the pressing blocks are provided on the two sides of the die seat, and the male die is mounted to the bottom of the die seat.

[0014] In the above technical solution, the technical effects and advantages of the utility model are as follows:

[0015] (1) By providing the pressing part on the clamping part, the blank can be pressed from above when clamped from both sides, so that not only the precise positioning of the blank can be realized to prevent the blank from shifting, the high-precision stamping forming of the valve body can be realized, but also the two sides and the top of the blank can be synchronously stressed, the stress uniformity of the blank of different thicknesses when clamped can be ensured, the problem that the stress on both sides of the blank when the blank is thin can easily lead to deformation of the blank can be avoided, and thus the forming and machining quality of the valve body can be improved, and the subsequent use of the valve body is facilitated.

[0016] (2) By providing the connecting block, the receiving cavity, the locking screw and the locking screw hole, the telescopic adjustment of the clamping part is realized, so that the height of the clamping block and the pressing block can be adjusted, the clamping block and the pressing block can clamp and press the blank respectively, the clamping of blanks of different thicknesses is facilitated, the forming and machining of valve bodies of different wall thicknesses are facilitated, the production requirements of valve bodies of different diameters are met, and the applicability of the device is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 Structure schematic view of the present application;

[0019] Figure 2 Structure schematic view of the present application Figure 1 ; Structure schematic view of the present application ; Structure schematic view of the present application

[0020] ; Structure schematic view of the present application Figure 3 ; Structure schematic view of the present application Figure 2 ; Structure schematic view of the present application ; Structure schematic view of the present application

[0021] ; Structure schematic view of the present application Figure 4 ; Structure schematic view of the present application Figure 2 ; Structure schematic view of the present application ; Structure schematic view of the present application

[0022] ; Structure schematic view of the present application Figure 5 ; Structure schematic view of the present application Figure 3 ; Structure schematic view of the present application ; Structure schematic view of the present application

[0023] ; Structure schematic view of the present application Figure 6 ; Left view of the present application Figure 5 ; Right view of the present application ; Right view of the present application

[0024] ; Right view of the present application Figure 7 ; Right view of the present application Figure 5 ; Right view of the present application ; Right view of the present application

[0025] In the figure: 1, rack; 2, concave die; 3, convex die; 4, support frame; 5, hydraulic cylinder; 6, clamping mechanism; 7, driving part;

[0026] 61, clamping part; 611, clamping block; 612, support block; 613, locking screw; 614, connecting block; 615, storage cavity; 616, locking screw hole;

[0027] 62, pressing part; 621, pressing block; 622, adjusting screw; 623, adjusting hand wheel; 624, guide rail; 625, cavity groove;

[0028] 71, motor; 72, bidirectional screw rod; 73, screw rod seat; 74, sliding rail; 75, notch. DETAILED DESCRIPTION

[0029] Clearly, the described embodiments are merely part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0030] The utility model provides a kind of high-precision valve body forming device as shown in Figures 1-7 It includes rack 1, and the recess die 2 and support frame 4 arranged on the rack 1, the support frame 4 is provided with the convex die 3 that can be lifted, and the convex die 3 corresponds with the recess die 2, and the rack 1 is provided with the clamping mechanism 6 that blanks are clamped and fixed on the recess die 2;

[0031] The clamping mechanism 6 includes two clamping parts 61 that can be moved relatively, and each clamping part 61 includes a support block 612, and the top of the support block 612 is connected with a clamping block 611;

[0032] The clamping block 611 is also provided with a pressing part 62, and the pressing part 62 includes a cavity 625 opened on one side of the clamping block 611 and an adjusting screw 622 screwed on the clamping block 611, the inside of the cavity 625 is provided with a pressing block 621, and one end of the pressing block 621 extends to the outside of the cavity 625, and one end of the adjusting screw 622 extends into the inside of the cavity 625 and is rotatably connected with the pressing block 621.

[0033] Specifically, the clamping mechanism 6 further includes a driving part 7 for driving the two clamping parts 61 to move relatively, and the driving part 7 includes a mounting cavity opened in the inside of the rack 1 and a motor 71 fixed on one side of the rack 1, the mounting cavity is provided with a bidirectional screw rod 72, and the two threaded segments of the bidirectional screw rod 72 are both connected with two screw rod seats 73 through threaded connection, the rack 1 is also provided with a slot 75 for the movement of the two screw rod seats 73, and the top ends of the two screw rod seats 73 pass through the slot 75 and are respectively fixedly connected to the bottoms of the corresponding support blocks 612.

[0034] At the same time, as for how the above-mentioned convex die 3 is lifted, in the present embodiment, as shown in Figures 1-3 The top of the support frame 4 is provided with a hydraulic cylinder 5, and the bottom end of the piston rod of the hydraulic cylinder 5 is fixedly connected with a die holder, and the four corners of the top of the die holder are all connected with retractable auxiliary rods between the support frame 4, and the two sides of the die holder are both provided with notches corresponding to the pressing block 621, and the convex die 3 is installed at the bottom of the die holder.

[0035] Through the above, in use, the blank can be placed on the concave die 2, and then the bidirectional screw rod 72 is driven to rotate by the motor 71, so that the bidirectional screw rod 72 drives the two supporting blocks 612 to move relatively through the screw rod seat 73, and then the two supporting blocks 612 drive the two clamping blocks 611 to move relatively, so as to clamp and fix the blank, and then the convex die 3 is driven to descend by the hydraulic cylinder 5, so as to stamp the blank into the cavity in the concave die 2, so as to realize the stamping of the blank into a valve body shaped stamping part, and then the convex die 3 is driven to ascend by the hydraulic cylinder 5, and the stamping part is taken out of the cavity in the concave die 2, so as to realize demolding and complete the stamping of the valve body;

[0036] And in the clamping process, the adjusting screw rod 622 can be rotated, so that the adjusting screw rod 622 drives the pressing block 621 to descend in the cavity groove 625 until the pressing block 621 abuts against the top of the blank, so as to press and fix the blank, which not only can realize accurate positioning of the blank and prevent the blank from shifting, but also can realize high-precision stamping forming of the valve body, and can make the two sides and the top of the blank bear force synchronously, so as to ensure that the blank of different thicknesses bears force uniformly when clamped, avoid the problem that the two sides of the blank are easy to deform when the blank is thin, and further improve the forming processing quality of the valve body and facilitate the subsequent use of the valve body.

[0037] Further, in the embodiment, in order to realize stable lifting of the pressing block 621, as shown in Figures 2-6 , a guide rail 624 is installed on the inner wall of the clamping block 611, and the guide rail 624 is in the cavity groove 625, and a guide rail groove matched with the guide rail 624 is formed on one side of the pressing block 621.

[0038] Further, in the embodiment, in order to facilitate rotation of the adjusting screw rod 622, as shown in Figures 1-7 , an adjusting hand wheel 623 is installed at the end of the adjusting screw rod 622 away from the pressing block 621.

[0039] Further, in the embodiment, in order to ensure stable movement of the screw rod seat 73, as shown in Figure 2 and Figure 3 , two sliding rails 74 are installed in the installation cavity, and sliding grooves matched with the sliding rails 74 are formed on the bottoms of the two screw rod seats 73.

[0040] In addition, in an embodiment, as shown in Figures 2-7 , a connecting block 614 is further installed at the bottom end of the clamping block 611, a receiving cavity 615 for inserting the connecting block 614 is formed on the supporting block 612, a locking screw 613 is screwed on the top of the supporting block 612, a plurality of locking screw holes 616 distributed at equal intervals along the height direction of the connecting block 614 are formed on the connecting block 614, and the locking screw 613 can be screwed into the corresponding locking screw hole 616.

[0041] During clamping the blank by the clamping block 611, the height position of the clamping block 611 can be adjusted according to the thickness of the blank, and the specific adjustment steps are as follows:

[0042] First, the locking screw 613 is screwed out of the locking screw hole 616, then the clamping block 611 is pulled upwards, so that the connecting block 614 is moved out of the receiving cavity 615, at this time the clamping block 611 drives the pressing block 621 to move synchronously to the appropriate height position, then the locking screw 613 is screwed into the corresponding locking screw hole 616, so as to screw and fix the connecting block 614 and the supporting block 612, thereby realizing the height adjustment of the clamping block 611 and the pressing block 621, facilitating the clamping and pressing of the blank by the clamping block 611 and the pressing block 621 respectively, being conducive to the clamping of blanks of different thicknesses, facilitating the forming machining of valve bodies of different wall thicknesses, thereby meeting the production needs of valve bodies of different diameters, and greatly improving the applicability of the device.

[0043] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-precision valve body forming device, characterized in that: The utility model provides a die holder, including frame (1), and the recess die (2) and support frame (4) of setting on frame (1), the support frame (4) is provided with the convex die (3) of liftable, and the convex die (3) corresponds with recess die (2), frame (1) is provided with the clamping mechanism (6) of blank clamping and fixed on recess die (2) on, The clamping mechanism (6) includes two relatively movable clamping parts (61), and each clamping part (61) includes a support block (612), the top of the support block (612) is connected with a clamping block (611); The clamping block (611) is further provided with a pressing part (62), and the pressing part (62) includes a cavity (625) opened on one side of the clamping block (611) and an adjusting screw (622) screwed on the clamping block (611), the inside of the cavity (625) is provided with a pressing block (621), one end of the pressing block (621) extends to the outside of the cavity (625), and one end of the adjusting screw (622) extends into the inside of the cavity (625) and is rotationally connected with the pressing block (621).

2. The high-precision valve body forming device according to claim 1, characterized in that: A guide rail (624) is installed on the inner wall of the clamping block (611), and the guide rail (624) is in the cavity (625), one side of the pressing block (621) is provided with a guide rail groove matched with the guide rail (624).

3. The high-precision valve body forming device according to claim 1, wherein: An adjusting hand wheel (623) is installed on the end of the adjusting screw (622) away from the pressing block (621).

4. The high-precision valve body forming device according to claim 1, characterized in that: The clamping mechanism (6) further includes a driving part (7) for driving the relative movement of the two clamping parts (61), and the driving part (7) includes a mounting cavity opened in the inside of the frame (1) and a motor (71) fixed on one side of the frame (1), the mounting cavity is provided with a bidirectional screw rod (72), and the two threaded segments of the bidirectional screw rod (72) are both threadedly connected with two screw rod seats (73), the frame (1) is further provided with a slot (75) for the movement of the two screw rod seats (73), the top ends of the two screw rod seats (73) pass through the slot (75) and are respectively fixedly connected to the bottoms of the corresponding support blocks (612).

5. The high-precision valve body forming device according to claim 4, characterized in that: Two sliding rails (74) are further installed in the mounting cavity, and the bottoms of the two screw rod seats (73) are provided with sliding grooves matched with the sliding rails (74).

6. The high-precision valve body forming device of claim 1, wherein: The bottom end of the clamping block (611) is further provided with a connecting block (614), the support block (612) is provided with a receiving cavity (615) for the insertion of the connecting block (614), and the top of the support block (612) is screwed with a locking screw (613), the connecting block (614) is provided with a plurality of locking screw holes (616) equally spaced along the height direction thereof, and the locking screw (613) can be screwed into the corresponding locking screw hole (616).

7. The high-precision valve body forming device of claim 1, wherein: The top of the support frame (4) is provided with a hydraulic cylinder (5), and the bottom end of the piston rod of the hydraulic cylinder (5) is fixedly connected with a die holder, four corners of the top of the die holder are connected with telescopic auxiliary rods between the die holder and the support frame (4), and both sides of the die holder are provided with notches corresponding to the pressing blocks (621), and the male die (3) is installed at the bottom of the die holder.