Ceramic valve core fixing clamp

Abstract

This utility model discloses a ceramic valve core fixing fixture, including a T-slot worktable and a first workpiece fixing fixture and a second workpiece fixing fixture movably mounted on the T-slot worktable. The first workpiece fixing fixture includes a first movable support, a first front and rear clamping assembly, and a first pressing assembly. The first pressing assembly and the first front and rear clamping assembly are mounted on the first movable support. A first limiting block is also provided on the left side of the first front and rear clamping assembly. The second workpiece fixing fixture includes a second movable support, a second front and rear clamping assembly, and a second pressing assembly. The second movable support is movably connected to the T-slot worktable via a second T-shaped movable block. The second front and rear clamping assembly and the second pressing assembly are mounted on the second movable support. A second limiting block is also provided on the right side of the second front and rear clamping assembly. This utility model is applicable to the processing of long ceramic valve cores, and provides a firm fixation, reducing vibration amplitude and improving processing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of ceramic valve core processing technology, specifically to a ceramic valve core fixing fixture. Background Technology

[0002] In existing technologies, it is necessary to machine holes on the outer circumferential surface of ceramic valve cores. Traditional ceramic valve core machining fixtures fix one end of the ceramic valve core for machining. Due to the high wear resistance of ceramic valve cores, the drilling machine uses polycrystalline diamond cutting tools, which require a large cutting force to machine the ceramic valve core. This fixing method is not secure and is prone to displacement of the ceramic valve core due to vibration, thus affecting the machining accuracy of the ceramic valve core. Furthermore, ceramic valve cores come in different lengths, and for longer ceramic valve cores, the vibration amplitude is greater, making machining more difficult. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a ceramic valve core fixing fixture that is suitable for processing longer ceramic valve cores, and is firmly fixed, which can reduce the vibration amplitude and improve the processing accuracy.

[0004] The technical solution of this utility model is as follows:

[0005] A ceramic valve core fixing fixture includes a T-slot worktable and a first workpiece fixing fixture and a second workpiece fixing fixture movably disposed on the T-slot worktable. The first workpiece fixing fixture includes a first movable support, a first front and rear clamping assembly, and a first pressing assembly. The first movable support is movably connected to the T-slot worktable via a first T-shaped movable block. The first pressing assembly and the first front and rear clamping assembly are disposed on the first movable support. A first limiting block is also provided on the left side of the first front and rear clamping assembly. One end of the ceramic valve core is placed on the first movable support and fixed in the front and rear by the first front and rear clamping assembly. The first limiting block limits the position, and then the first pressing component presses it down to fix it. The second workpiece fixing fixture includes a second movable support, a second front and rear clamping component, and a second pressing component. The second movable support is movably connected to the T-slot worktable through a second T-shaped movable block. The second front and rear clamping component and the second pressing component are arranged on the second movable support from the left and right. A second limiting block is also provided on the right side of the second front and rear clamping component. The other end of the ceramic valve core is placed on the second movable support and fixed from the front and rear by the second front and rear clamping component, and limited by the second limiting block. After being limited, it is pressed down to fix it by the second pressing component.

[0006] Furthermore, both the first and second front and rear clamping components include a first pneumatic finger, a first lateral clamping block, and a second lateral clamping block. The two grippers of the first pneumatic finger face upward and are respectively connected to the first and second lateral clamping blocks. A first left and right clamping station is formed between the first and second lateral clamping blocks.

[0007] Furthermore, both the first pressing component and the second pressing component include a pressing cylinder and a pressing block. The cylinder shaft of the pressing cylinder faces upward and is connected to the pressing block. The pressing block forms an upper and lower clamping position with the first movable support and the second movable support.

[0008] Furthermore, the bottom surface of the pressure block is provided with a groove that matches the end of the ceramic valve core.

[0009] Furthermore, the first workpiece fixing fixture also includes a third front and rear clamping assembly disposed on the first movable support. The third front and rear clamping assembly is located to the right of the first front and rear clamping assembly and is used to strengthen the front and rear fixation of one end of the ceramic valve core. The second workpiece fixing fixture also includes a fourth front and rear clamping assembly disposed on the second movable support. The fourth front and rear clamping assembly is located to the left of the second front and rear clamping assembly and is used to strengthen the front and rear fixation of the other end of the ceramic valve core.

[0010] Furthermore, both the third and fourth front and rear clamping assemblies include a second pneumatic finger, a first vertical clamping block, and a second vertical clamping block. The two grippers of the second pneumatic finger face to one side and are respectively connected to the first and second vertical clamping blocks. A second left and right clamping station is formed between the first and second vertical clamping blocks.

[0011] Furthermore, a first material sensor is provided on the right side of the third front and rear clamping assembly. The first material sensor is signal-connected to the third front and rear clamping assembly, the first front and rear clamping assembly, and the first pressing assembly, respectively. A second material sensor is provided on the left side of the fourth front and rear clamping assembly. The second material sensor is signal-connected to the fourth front and rear clamping assembly, the second front and rear clamping assembly, and the second pressing assembly, respectively.

[0012] Compared to existing technologies, the advantages of this utility model are as follows: This utility model provides a ceramic valve core fixing fixture comprising a T-slot worktable and a first workpiece fixing fixture and a second workpiece fixing fixture movably mounted on the T-slot worktable. The first workpiece fixing fixture includes a first movable support, a first front and rear clamping assembly, and a first pressing assembly. The second workpiece fixing fixture includes a second movable support, a second front and rear clamping assembly, and a second pressing assembly. In use, one end of the ceramic valve core is placed on the first movable support and fixed front and rear by the first front and rear clamping assembly, and then limited by a first limiting block. After being limited, it is further pressed down and fixed by the first pressing assembly. The other end of the ceramic valve core is placed on the second movable support and fixed front and rear by the second front and rear clamping assembly, and then limited by a second limiting block. After being limited, it is further pressed down and fixed by the second pressing assembly. This design is suitable for processing longer ceramic valve cores, provides a firm fixation, reduces vibration, and improves processing accuracy. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural schematic diagram of a ceramic valve core fixing clamp provided by this utility model. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0017] Example

[0018] Please see Figure 1This embodiment provides a ceramic valve core fixing fixture, including a T-slot worktable 1 and a first workpiece fixing fixture 2 and a second workpiece fixing fixture 3 that are movably arranged on the T-slot worktable 1.The first workpiece fixing fixture 2 includes a first movable support 21, a first front and rear clamping assembly 22, and a first pressing assembly 23. The first movable support 21 is movably connected to the T-slot worktable 1 via a first T-shaped movable block. The first pressing assembly 23 and the first front and rear clamping assembly 22 are arranged on the first movable support 21 from the left and right. A first limiting block 24 is also provided on the left side of the first front and rear clamping assembly 22. One end of the ceramic valve core is placed on the first movable support 21 and fixed from the front and rear by the first front and rear clamping assembly 22 and limited by the first limiting block 24. After being limited, it is pressed down and fixed by the first pressing assembly 23. Preferably, the first workpiece fixing fixture 2 also includes a third front and rear clamping assembly 25 arranged on the first movable support 21. The third front and rear clamping assembly 25 is located to the right of the first front and rear clamping assembly 22, and is used to strengthen the front and rear fixation of one end of the ceramic valve core. A first material sensor 26 is provided on the right side of the third front and rear clamping assembly 25. The first material sensor 26 is connected to the third front and rear clamping assembly 25, the first front and rear clamping assembly 22, and the first pressing assembly 23 respectively. When the first material sensor 26 senses the ceramic valve core, it sends signals to the third front and rear clamping assembly 25, the first front and rear clamping assembly 22, and the first pressing assembly 23 in sequence. First, the third front and rear clamping assembly 25 performs front and rear clamping, then the first front and rear clamping assembly 22 further performs front and rear clamping, and finally the first pressing assembly 23 presses down to fix one end of the ceramic valve core. The two-workpiece fixing fixture 3 includes a second movable support 31, a second front and rear clamping assembly 32, and a second pressing assembly 33. The second movable support 31 is movably connected to the T-slot worktable 1 via a second T-shaped movable block. The second front and rear clamping assembly 32 and the second pressing assembly 33 are arranged on the second movable support 31 from the left and right. A second limiting block 34 is also provided on the right side of the second front and rear clamping assembly 32. The other end of the ceramic valve core is placed on the second movable support 31 and fixed from the front and rear by the second front and rear clamping assembly 32 and limited by the second limiting block 34. After being limited, it is pressed down and fixed by the second pressing assembly 33. Preferably, the second workpiece fixing fixture 3 also includes a fourth front and rear clamping assembly 35 arranged on the second movable support 31. The fourth front and rear clamping assembly 35 is located to the left of the second front and rear clamping assembly 32 and is used to strengthen the front and rear fixation of the other end of the ceramic valve core. A second material sensor 36 is provided on the left side of the fourth front and rear clamping assembly 35. The second material sensor 36 is connected to the fourth front and rear clamping assembly 35, the second front and rear clamping assembly 32 and the second pressing assembly 33 respectively. When the second material sensor 36 senses the ceramic valve core, it sends signals to the fourth front and rear clamping assembly 35, the second front and rear clamping assembly 32 and the second pressing assembly 33 in sequence. First, the fourth front and rear clamping assembly 35 performs front and rear clamping, then the second front and rear clamping assembly 32 further performs front and rear clamping, and finally the second pressing assembly 33 presses down to fix the other end of the ceramic valve core.

[0019] Specifically, both the first front and rear clamping assembly 22 and the second front and rear clamping assembly 32 include a first pneumatic finger 221, a first lateral clamping block 222, and a second lateral clamping block 223. The two grippers of the first pneumatic finger 221 face upward and are connected to the first lateral clamping block 222 and the second lateral clamping block 223 respectively, forming a first left and right clamping station between the first lateral clamping block 222 and the second lateral clamping block 223. Driven by the first pneumatic finger 221, the first lateral clamping block 222 and the second lateral clamping block 223 move towards each other to clamp the ceramic valve core.

[0020] Specifically, both the third and fourth front-to-back clamping assemblies 25 and 35 include a second pneumatic finger 251, a first vertical clamping block 252, and a second vertical clamping block 253. The two grippers of the second pneumatic finger 251 face one side and are connected to the first and second vertical clamping blocks 252 and 253 respectively, forming a second left-right clamping position between the first and second vertical clamping blocks 252 and 253. Driven by the second pneumatic finger 251, the first and second vertical clamping blocks 252 and 253 move towards each other to clamp the ceramic valve core from the front and back. The purpose of designing lateral and vertical clamping is to fix the ceramic valve core axially and radially respectively, which helps to improve the clamping firmness of the ceramic valve core.

[0021] Specifically, both the first pressing assembly 23 and the second pressing assembly 33 include a pressing cylinder 231 and a pressing block 232. The cylinder shaft of the pressing cylinder 231 faces upward and is connected to the pressing block 232. The pressing block 232 forms an upper and lower clamping position with the first movable support 21 and the second movable support 31. Under the action of the pressing cylinder 231, the pressing block 232 moves downward to cooperate with the movable support for upper and lower clamping. Preferably, the bottom surface of the pressing block 232 is provided with a groove 2321 that matches the end of the ceramic valve core. The design of the groove 2321 helps to improve the clamping firmness of the ceramic valve core.

[0022] In summary, this ceramic valve core fixing fixture can adapt to ceramic valve cores of different lengths by adjusting the distance between the first workpiece fixing fixture 2 and the second workpiece fixing fixture 3. It is suitable for processing longer ceramic valve cores. One end of the ceramic valve core is fixed in sequence by the third front and rear clamping assembly 25, the first front and rear clamping assembly 22 and the first pressing assembly 23, while the other end of the ceramic valve core is fixed in sequence by the fourth front and rear clamping assembly 35, the second front and rear clamping assembly 32 and the second pressing assembly 33. The fixing is very firm, which can greatly reduce the vibration amplitude and improve the processing accuracy.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ceramic valve trim fixture, characterized by: The device includes a T-slot worktable and a first workpiece fixing fixture and a second workpiece fixing fixture that are movably mounted on the T-slot worktable from left to right. The first workpiece fixing fixture includes a first movable support, a first front and rear clamping assembly, and a first pressing assembly. The first movable support is movably connected to the T-slot worktable via a first T-shaped movable block. The first pressing assembly and the first front and rear clamping assembly are mounted on the first movable support from left to right. A first limiting block is also provided on the left side of the first front and rear clamping assembly. One end of the ceramic valve core is placed on the first movable support and fixed from front to back by the first front and rear clamping assembly and by the first limiting block. The workpiece fixing fixture includes a second movable support, a second front and rear clamping assembly, and a second pressing assembly. The second movable support is movably connected to the T-slot worktable via a second T-shaped movable block. The second front and rear clamping assembly and the second pressing assembly are arranged on the second movable support from the left and right. A second limiting block is also provided on the right side of the second front and rear clamping assembly. The other end of the ceramic valve core is placed on the second movable support and fixed from the front and rear by the second front and rear clamping assembly, and limited by the second limiting block. After being limited, it is pressed down and fixed by the second pressing assembly.

2. The ceramic valve core fixing clamp according to claim 1, characterized in that: The first and second front and rear clamping assemblies each include a first pneumatic finger, a first lateral clamping block, and a second lateral clamping block. The two grippers of the first pneumatic finger face upward and are respectively connected to the first and second lateral clamping blocks. A first left and right clamping station is formed between the first and second lateral clamping blocks.

3. The ceramic valve core fixing clamp according to claim 1, characterized in that: Both the first pressing assembly and the second pressing assembly include a pressing cylinder and a pressing block. The cylinder shaft of the pressing cylinder faces upward and is connected to the pressing block. The pressing block forms an upper and lower clamping position with the first movable support and the second movable support.

4. The ceramic valve trim fixture of claim 3, wherein: The bottom surface of the pressure block is provided with a groove that matches the end of the ceramic valve core.

5. The ceramic valve core fixing clamp according to claim 1, characterized in that: The first workpiece fixing fixture further includes a third front and rear clamping assembly disposed on the first movable support. The third front and rear clamping assembly is located to the right of the first front and rear clamping assembly and is used to strengthen the front and rear fixing of one end of the ceramic valve core. The second workpiece fixing fixture further includes a fourth front and rear clamping assembly disposed on the second movable support. The fourth front and rear clamping assembly is located to the left of the second front and rear clamping assembly and is used to strengthen the front and rear fixing of the other end of the ceramic valve core.

6. A ceramic valve core fixing clamp according to claim 5, characterized in that: Both the third and fourth front and rear clamping assemblies include a second pneumatic finger, a first vertical clamping block, and a second vertical clamping block. The two grippers of the second pneumatic finger face to one side and are respectively connected to the first vertical clamping block and the second vertical clamping block. A second left and right clamping station is formed between the first vertical clamping block and the second vertical clamping block.

7. The ceramic valve core fixing clamp according to claim 5, characterized in that: A first material sensor is provided on the right side of the third front and rear clamping assembly. The first material sensor is signal-connected to the third front and rear clamping assembly, the first front and rear clamping assembly, and the first pressing assembly. A second material sensor is provided on the left side of the fourth front and rear clamping assembly. The second material sensor is signal-connected to the fourth front and rear clamping assembly, the second front and rear clamping assembly, and the second pressing assembly.

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