A bottom valve cage trimming apparatus

Abstract

The utility model relates to machining technical field especially, relates to a kind of trimming equipment of bottom valve retainer, solve the problem that the existing equipment can only single-piece clamping leads to low efficiency, heavy artificial burden.The equipment includes base and the cutting module connected in the top side of base, base top sliding connection mobile seat, and mobile seat is driven by horizontal pushing structure, and its top is equipped with multiple positioning areas, and each area is equipped with pressure plate and side clamping plate, and pressure plate is connected mobile seat by vertical adjusting structure, and side clamping plate is matched with pressure plate sliding groove through sliding rod, and position is locked by positioning structure.The utility model realizes multiple retainer disposable accurate clamping and synchronous trimming, greatly improves processing efficiency, reduces artificial operation frequency and labor intensity, meets the demand of batch production to high efficiency and stability.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a trimming device for a bottom valve retainer. Background Technology

[0002] The foot valve retainer, a key structural component inside the foot valve used to support and position the valve disc or filter assembly, directly affects the valve's sealing performance, opening and closing flexibility, and long-term service stability due to its contour accuracy and edge finish. During mass production, retainer blanks are often formed by stamping or casting, inevitably leaving burrs, flash, or dimensional allowances on the edges. These must be precisely trimmed through an edge-trimming process to ensure assembly compatibility and functional reliability. Therefore, efficient and precise edge-trimming equipment plays a crucial role in the foot valve retainer manufacturing process, and its processing efficiency and consistency have a decisive impact on the overall production line's capacity and product quality.

[0003] Utility model patent CN 208033459 U discloses a "composite die for stretching and trimming of stamping cages". This die integrates a trimming punch and a stretching punch in the upper die, and a die and unloading mechanism in the lower die, achieving a composite process of stretching and trimming in a single stamping operation, effectively improving single-piece processing efficiency and product consistency. However, the clamping and positioning structure (such as a positioning plate) of this device is only suitable for clamping a single workpiece, and cannot achieve synchronous positioning and parallel trimming of multiple cages. This structural defect directly leads to operators having to repeatedly perform cyclical operations of single-piece clamping, stamping, and unloading in mass production scenarios, significantly reducing overall processing efficiency and greatly increasing the frequency of manual intervention and labor intensity.

[0004] Therefore, addressing the core pain points of existing edge-cutting equipment, such as its inability to process multiple parts simultaneously, low efficiency, and poor consistency, we urgently need an edge-cutting device for bottom valve cages. This new type of equipment should be able to overcome the limitations of single-piece processing, achieving precise clamping and simultaneous edge cutting of multiple cages in a single operation. This would significantly improve production efficiency and product yield, reduce labor and time costs, and better meet the modern production needs of the bottom valve manufacturing industry for high capacity, high consistency, and low cost. It would also provide strong support for the large-scale and lean manufacturing of core components for fluid control equipment. Utility Model Content

[0005] The purpose of this invention is to provide a trimming device for bottom valve retainers, solving the problem that the existing clamping and positioning structures are only suitable for clamping a single workpiece, and cannot achieve synchronous positioning and parallel trimming of multiple retainers. This structural defect directly leads to the need for operators to repeatedly perform single-piece clamping, stamping, and unloading cycles in mass production scenarios, which not only significantly reduces the overall processing efficiency but also greatly increases the frequency of manual intervention and labor intensity.

[0006] To achieve the above objectives, this utility model provides a cutting device for a bottom valve holder, including a base and a cutting module connected to the center of one side of the top of the base;

[0007] A movable seat is slidably connected to the top of the base. One end of the movable seat is connected to the end of the base through a horizontal pushing structure. The top of the movable seat is provided with several positioning areas. Each positioning area is provided with a pressure plate at its top. The bottom side of the pressure plate is connected to the top of the movable seat through a vertical adjustment structure.

[0008] The pressure plate has side clamps on both sides of the bottom and sliding grooves on both sides of the top. The top of the side clamps is connected to a sliding rod that is slidably connected to the inside of the sliding groove. The top of the sliding rod is connected to a positioning structure that is detachably connected to the top of the pressure plate.

[0009] The base has fixed plates on both sides of its top, and two round rods are connected between the two fixed plates. The two sides of the movable seat are slidably engaged with the round rods.

[0010] The vertical adjustment structure includes a bottom plate that is fixedly connected to the top of the movable seat by bolts and a screw cylinder that is fixedly connected to the center of the top of the bottom plate. The screw cylinder has an adjusting screw rod that rotates through the pressure plate at one end. Both sides of the top of the bottom plate are fixedly connected to a guide rod that slides through the pressure plate at one end.

[0011] The horizontal pushing structure includes a pushing cylinder, which is mounted on one side of the fixed plate, and the output end of the pushing cylinder is connected to the side wall of the moving seat.

[0012] The top end of the adjusting screw is fixedly connected to a handle, and the outer ring of the handle has an anti-slip groove.

[0013] The pressure plate has several positioning holes on both sides of its top. The positioning structure includes a positioning plate fixedly connected to the top of the sliding rod. The top of the positioning plate is provided with a positioning rod that slides through the positioning plate at one end. The positioning rod is adapted to be inserted into the positioning hole.

[0014] This utility model discloses a trimming device for a bottom valve retainer. The pressure plate achieves height self-adjustment through a vertical adjustment structure, and the side clamping plate achieves flexible lateral position adjustment through the cooperation of a sliding rod and a sliding groove. Furthermore, a detachable positioning structure is added, enabling the clamping system to be compatible with retainers of different specifications or slight size differences. This enhances the versatility and adaptability of the equipment, avoids clamping failure or positioning offset caused by workpiece size fluctuations, and ensures consistent trimming quality. The moving seat achieves automatic feeding and retraction of the entire fixture through a horizontal pushing structure, allowing multiple workpieces to be trimmed under a unified datum. This reduces positioning errors caused by multiple clamping operations and improves the stability of product contour accuracy and edge finish. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a structural schematic diagram of the fixing plate and the round rod according to an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the movable seat and pressure plate according to an embodiment of the present utility model.

[0019] Figure 4 This is a schematic diagram of the bottom plate and guide rod of an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the sliding rod and positioning plate according to an embodiment of the present invention.

[0021] In the diagram: 1. Base; 2. Cutting module; 3. Moving seat; 4. Fixing plate; 5. Round rod; 6. Push cylinder; 7. Pressure plate; 8. Bottom plate; 9. Guide rod; 10. Adjusting screw; 11. Screw barrel; 12. Positioning hole; 13. Sliding groove; 14. Side clamping plate; 15. Positioning plate; 16. Positioning rod; 17. Sliding rod. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Example 1

[0024] Please see Figure 1-5As shown, a cutting device for a bottom valve holder in this embodiment includes a base 1 and a cutting module 2 connected to the center of one side of the top of the base 1;

[0025] A movable seat 3 is slidably connected to the top of the base 1. One end of the movable seat 3 is connected to the end of the base 1 through a horizontal pushing structure. The top of the movable seat 3 is provided with several positioning areas. Each positioning area is provided with a pressure plate 7 on its top. The bottom side of the pressure plate 7 is connected to the top of the movable seat 3 through a vertical adjustment structure.

[0026] The pressure plate 7 has side clamps 14 on both sides of the bottom and sliding grooves 13 on both sides of the top. The top of the side clamps 14 is connected to a sliding rod 17 that is slidably connected to the inside of the sliding groove 13. The top of the sliding rod 17 is connected to a positioning structure that is detachably connected to the top of the pressure plate 7.

[0027] In actual operation, the trimming device for the bottom valve retainer first places multiple bottom valve retainer blanks to be processed sequentially into several positioning areas set on the top of the moving seat 3. Each positioning area corresponds to one workpiece, achieving pre-assembly of multiple pieces side by side. Subsequently, the pressure plate 7 is driven to move downward through the vertical adjustment structure, so that the bottom of the pressure plate 7 is in contact with the upper surface of each retainer blank, achieving initial clamping and positioning. At the same time, the side clamping plates 14 located on both sides of the bottom of the pressure plate 7 slide horizontally along the sliding grooves 13 opened on both sides of the top of the pressure plate 7 under the drive of the sliding rod 17. The top of the sliding rod 17 is detachably connected to the top of the pressure plate 7 through the positioning structure, so that the side clamping plates 14 can be finely adjusted in lateral position according to retainers of different sizes or shapes, and finally clamp the left and right side walls of the workpiece, thereby applying constraint force in both vertical and horizontal directions to ensure that each retainer is properly trimmed during the trimming process. No displacement or deflection occurs during the process; after clamping is completed, the horizontal pushing structure is activated, driving the entire moving seat 3 to slide along the top of the base 1, simultaneously pushing the clamped multiple retainers to the working area directly below the cutting module 2; the cutting module 2 aligns with the edges of each retainer according to the preset program to perform edge trimming operations sequentially or simultaneously, removing burrs, flash, or excess material; after edge trimming is completed, the horizontal pushing structure drives the moving seat 3 to return to its original position, the vertical adjustment structure drives the pressure plate 7 to rise to release the vertical pressure, and the sliding rod 17 drives the side clamping plate 14 to slide outward after the positioning structure is released to release the lateral clamping force, so that the operator can take out all the finished workpieces at once and prepare for the next batch of clamping; the entire process does not require repeated single-piece clamping or frequent manual adjustment of positioning, the clamping and cutting processes are highly coordinated, significantly shortening non-processing time and improving equipment utilization and process continuity.

[0028] Example 2

[0029] Please see Figure 1-5As shown in this embodiment, a cutting device for a bottom valve holder has a base 1 with fixed plates 4 connected to both sides of the top. Two round rods 5 are connected between the two fixed plates 4. The two sides of the movable seat 3 are slidably engaged with the round rods 5. Specifically, through the setting of the fixed plates 4 and the round rods 5, the two fixed plates 4 are fixed to the top two sides of the base 1, and the two round rods 5 between them are slidably engaged with the two sides of the movable seat 3. This allows the movable seat 3 to slide smoothly along the axial direction of the round rods 5 under the drive of the horizontal pushing structure, thereby achieving the effect of limiting the movement trajectory of the movable seat 3, improving the linear accuracy and structural stability during its feed and retraction processes, and avoiding workpiece processing errors caused by shaking or offset during the cutting process.

[0030] The horizontal pushing structure includes a pushing cylinder 6, which is installed on one side of the fixed plate 4. The output end of the pushing cylinder 6 is connected to the side wall of the moving seat 3. Specifically, by setting the pushing cylinder 6, the pushing cylinder 6 is installed on the side wall of the fixed plate 4, and its output end is directly connected to the side wall of the moving seat 3. After clamping, the cylinder can extend and retract to drive the moving seat 3 to slide along the round rod 5, so that multiple workpieces are simultaneously fed into or out of the working area of ​​the cutting module 2. This achieves the effects of automated control of workpiece feeding, reduction of manual pushing operations, improvement of process connection efficiency and operation safety, and ensures that the feeding position is consistent each time, thereby improving the processing repeatability accuracy.

[0031] Example 3

[0032] Please see Figure 1-5 As shown, this embodiment of a bottom valve retainer trimming device includes a vertical adjustment structure comprising a bottom plate 8 bolted to the top of a movable seat 3 and a screw cylinder 11 fixedly connected to the center of the top of the bottom plate 8. The screw cylinder 11 has an internal threaded connection to an adjusting screw 10 that rotates through a pressure plate 7 at one end. Guide rods 9, each with a sliding end through the pressure plate 7, are fixedly connected to both sides of the top of the bottom plate 8. Specifically, through the arrangement of the bottom plate 8, screw cylinder 11, adjusting screw 10, and guide rods 9, the bottom plate 8 is fixed to the top of the movable seat 3, the screw cylinder 11 is vertically installed on it, the adjusting screw 10 is screwed into the screw cylinder 11 and rotates through the pressure plate 7, and the guide rods 9 on both sides slide through the pressure plate 7 to provide guidance. When the adjusting screw 10 is rotated, the pressure plate 7 can rise and fall vertically along the guide rods 9, achieving precise and controllable height control of the pressure plate 7 and stable application of vertical clamping force. This ensures that retainers of different thicknesses or heights can be firmly held, preventing the workpiece from floating or loosening during trimming.

[0033] A handle is fixedly connected to the top of the adjusting screw 10. The outer ring of the handle has an anti-slip groove. Specifically, by setting a handle at the top of the adjusting screw 10 and having an anti-slip groove on the outer ring of the handle, the operator can hold the handle to apply force when manually rotating the adjusting screw 10. The anti-slip groove increases the friction of the hand, which achieves the effect of making it easy to quickly, effortlessly and stably complete the lifting and lowering adjustment of the pressure plate 7, improves the human-machine efficiency of clamping operation, reduces labor intensity, and avoids slippage that may cause adjustment failure or misoperation.

[0034] Several positioning holes 12 are provided on both sides of the top of the pressure plate 7. The positioning structure includes a positioning plate 15 fixedly connected to the top of the sliding rod 17. A positioning rod 16 with one end sliding through the positioning plate 15 is provided on the top of the positioning plate 15. The positioning rod 16 is adapted to the positioning hole 12 and inserted into it. Specifically, by opening the positioning hole 12 on the top of the pressure plate 7 and connecting the positioning plate 15 and the positioning rod 16 at the top of the sliding rod 17, after the side clamping plate 14 slides to the appropriate position in the sliding groove 13 via the sliding rod 17, the positioning rod 16 is inserted into the corresponding positioning hole 12 to achieve relative locking between the positioning plate 15 and the pressure plate 7. This achieves the effect of quickly fixing the lateral position of the side clamping plate 14 and preventing the clamping plate from loosening and shifting during the cutting process. At the same time, it supports flexible selection of the position of the positioning hole 12 according to different workpiece sizes, realizing stepless or graded adjustment of the clamping width and enhancing the adaptability of the equipment to products of multiple specifications.

[0035] In the actual complete workflow, the trimming device for the bottom valve retainer first involves the operator placing multiple bottom valve retainer blanks to be trimmed into several preset positioning areas on the top of the movable seat 3, with each area corresponding to one workpiece. Then, the operator holds the handle at the top of the adjusting screw 10, whose outer ring has anti-slip grooves to enhance grip stability, and rotates the adjusting screw 10, causing it to engage with the internal thread of the screw cylinder 11, which is fixedly connected to the center of the top of the bottom plate 8. Simultaneously, the pressure plate 7 is guided by the guide rods 9 on both sides, with one end fixed to the top of the bottom plate 8 and the other end sliding through the guide plate 7. The pressure plate 7 descends smoothly and vertically until its bottom surface aligns with the upper surfaces of the retainers, achieving initial vertical clamping. Simultaneously, the operator manually pushes the sliding rod 17, whose bottom end connects to the side clamping plate 14 and its top end connects to the positioning plate 15, along the sliding grooves 13 on both sides of the top of the pressure plate 7. This causes the side clamping plates 14 to move closer to the side wall of the workpiece. Once the clamping position is determined, the positioning rod 16 is inserted from the top of the positioning plate 15 and passes through to the positioning hole 12 corresponding to the top of the pressure plate 7, locking the lateral position of the side clamping plates 14. This allows the pressure plate to be clamped vertically. Plate 7 is pressed and clamped horizontally by side clamping plates 14, achieving three-dimensional stable clamping of each cage. After clamping, the push cylinder 6 installed on one side of the fixed plate 4 is positioned on both sides of the top of the base 1. Two round rods 5 are mounted between the two fixed plates 4. The moving seat 3 is activated by sliding engagement with the round rods 5 on both sides. Its output end pushes the moving seat 3 to slide smoothly along the axial direction of the round rods 5, synchronously sending the entire row of clamped workpieces into the working area directly below the cutting module 2 located at the center of the top side of the base 1. The cutting module 2 performs edge trimming on each cage according to the program settings, removing burrs and... After processing, the cylinder 6 is pushed to retract in the reverse direction, causing the moving seat 3 to return to its original position along the round rod 5. The operator pulls out the positioning rod 16 to release the lateral lock of the side clamping plate 14, manually pulls the sliding rod 17 outward to loosen the side clamping plate 14, and then rotates the adjusting screw 10 in the reverse direction to make the pressure plate 7 rise under the guidance of the guide rod 9, releasing the vertical clamping. Finally, all the finished cutting workpieces are taken out at once to prepare for the next batch of clamping. Throughout the process, all structures work together to achieve a complete closed-loop process of multi-piece synchronous positioning, rapid clamping, automatic feeding, stable cutting and convenient unloading.

[0036] The equipment uses base 1 as the overall support foundation, with cutting module 2 on top providing stable cutting function. The movable seat 3 serves as a load-bearing tooling platform that can slide along base 1 to achieve workstation switching. The combination of fixed plate 4 and round rod 5 provides a high-rigidity, low-friction linear guide path for the movable seat 3, ensuring a smooth and unbiased feeding process. The push cylinder 6 serves as the power source to realize the automatic reciprocating motion of the movable seat 3, reducing manual intervention and improving cycle consistency. The vertical adjustment structure composed of pressure plate 7, bottom plate 8, screw cylinder 11, adjusting screw 10, and guide rod 9 allows for precise height adjustment and stable pressure application of pressure plate 7 to adapt to workpieces of different thicknesses. The handle and anti-slip groove at the top of adjusting screw 10 improve the comfort and efficiency of manual adjustment. The lateral clamping and positioning system composed of side clamping plate 14, sliding groove 13, sliding rod 17, positioning plate 15, positioning rod 16, and positioning hole 12 enables flexible adjustment and rigid locking of clamping width, ensuring that workpieces of different specifications can be firmly clamped.

[0037] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A trimming device for a bottom valve holder, characterized in that, include: The base and the cutting module connected to the center of one side of the top of the base; A movable seat is slidably connected to the top of the base. One end of the movable seat is connected to the end of the base through a horizontal pushing structure. The top of the movable seat is provided with several positioning areas. Each positioning area is provided with a pressure plate at its top. The bottom side of the pressure plate is connected to the top of the movable seat through a vertical adjustment structure. The pressure plate has side clamps on both sides of the bottom and sliding grooves on both sides of the top. The top of the side clamps is connected to a sliding rod that is slidably connected to the inside of the sliding groove. The top of the sliding rod is connected to a positioning structure that is detachably connected to the top of the pressure plate.

2. The edge-cutting device for a bottom valve holder according to claim 1, characterized in that, The base has fixed plates on both sides of its top, and two round rods are connected between the two fixed plates. The two sides of the movable seat are slidably engaged with the round rods.

3. The edge-cutting device for a bottom valve holder according to claim 1, characterized in that, The vertical adjustment structure includes a bottom plate that is fixedly connected to the top of the movable seat by bolts and a screw cylinder that is fixedly connected to the center of the top of the bottom plate. The screw cylinder has an adjusting screw rod that rotates through the pressure plate at one end. Both sides of the top of the bottom plate are fixedly connected to a guide rod that slides through the pressure plate at one end.

4. The edge-cutting device for a bottom valve holder according to claim 2, characterized in that, The horizontal pushing structure includes a pushing cylinder, which is mounted on one side of the fixed plate, and the output end of the pushing cylinder is connected to the side wall of the moving seat.

5. The edge-cutting device for a bottom valve holder according to claim 3, characterized in that, A handle is fixedly connected to the top of the adjusting screw, and the outer ring of the handle has an anti-slip groove.

6. The edge-cutting device for a bottom valve holder according to claim 5, characterized in that, The pressure plate has several positioning holes on both sides of its top. The positioning structure includes a positioning plate fixedly connected to the top of the sliding rod. The top of the positioning plate is provided with a positioning rod that slides through the positioning plate at one end. The positioning rod is adapted to be inserted into the positioning hole.

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