A floating press jaw structure

By designing a floating pressure claw structure, the problem of uneven wear of the pressure claws in cylinder groove grinding is solved, thereby improving the stability and precision of cylinder grinding and reducing material waste.

CN224464449UActive Publication Date: 2026-07-07TCL RUIZHI (HUIZHOU) REFRIGERATION EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TCL RUIZHI (HUIZHOU) REFRIGERATION EQUIP CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-07

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Abstract

The utility model provides a kind of floating pressure claw structure, including fixed subassembly, floating subassembly and pressure claw subassembly, the pressure claw subassembly connects the floating subassembly, the floating subassembly rotation is set on the fixed subassembly;The fixed subassembly includes mounting and pivot, and one end of the pivot is fixedly connected to the side surface of the mounting;The floating subassembly includes connecting piece, and the side of the connecting piece towards pivot is equipped with first installation slot, and the other end of the pivot rotation is set in the first installation slot;The pressure claw subassembly includes first pressure claw and second pressure claw, and the first pressure claw and second pressure claw are connected on the side of the connecting piece far from the pivot;The utility model provides a kind of floating pressure claw structure, when the plane of product being pressed is not consistent, pressure claw subassembly can still provide stable pressing effect, improve the stability of operation and ensure the operation accuracy of product.
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Description

Technical Field

[0001] This utility model belongs to the field of pressure claw technology, and specifically relates to a floating pressure claw structure. Background Technology

[0002] The grooves on the cylinder block of the compressor mainly serve functions such as sealing, lubrication, positioning, or heat dissipation. Groove grinding needs to eliminate residual errors from the blank machining to ensure that the accuracy of the grooves matches the overall reference of the cylinder block.

[0003] The slot grinding operation of the cylinder block is a high-precision grinding process for various slot-shaped structures on the cylinder block. The purpose is to ensure the dimensional accuracy, shape accuracy, positional accuracy and surface roughness of the slots, so as to meet the assembly and functional requirements of the cylinder block.

[0004] Currently, in the groove grinding of cylinder blocks, a clamping jaw mechanism is set up to hold the cylinder block in order to ensure the positional stability of the cylinder block. However, in practical applications, it has been found that the current cylinder block products are ground using an integrated fixed clamping jaw. This is prone to uneven height between adjacent clamping jaws due to wear and other factors. As a result, the clamping jaws cannot make complete contact when holding the cylinder block product, which affects the grinding of the cylinder block product and leads to poor accuracy. Summary of the Invention

[0005] To address the shortcomings of the prior art, this invention provides a floating pressure claw structure that enables the pressure claw assembly to provide a stable pressing effect even when the plane of the pressed product is inconsistent, thereby improving the stability of the operation and ensuring the accuracy of the product operation.

[0006] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0007] This utility model provides a floating pressure claw structure, including a fixed component, a floating component, and a pressure claw component, wherein the pressure claw component is connected to the floating component, and the floating component is rotatably mounted on the fixed component;

[0008] The fixing component includes a mounting part and a rotating shaft, one end of which is fixedly connected to the side of the mounting part;

[0009] The floating component includes a connector, the connector having a first mounting groove on one side facing the rotating shaft, and the other end of the rotating shaft being rotatably disposed within the first mounting groove;

[0010] The pressure claw assembly includes a first pressure claw and a second pressure claw, which are connected side-by-side on the connector on the side away from the rotating shaft.

[0011] In some implementations, a reset component is also included, wherein the connector has a receiving cavity for accommodating the reset component;

[0012] The reset assembly includes a pin, a first spring, and a second spring. The pin passes through the pivot, and the first spring and the second spring abut against opposite sides of the upper end of the pin.

[0013] The pins are distributed along the pressing direction of the pressure claw assembly, and the first spring and the second spring are located in the rotation direction of the connector. The pressure claw assembly is self-reset by setting a reset component, and an initial pressure is pre-applied to ensure that the pressure claw assembly will not swing.

[0014] In some implementations, the reset assembly further includes a third spring and a fourth spring, which abut against opposite sides of the lower end of the pin, respectively.

[0015] The third and fourth springs are located in the rotational direction of the connector, increasing the initial pressure on the pressure claw assembly and further enhancing the self-resetting effect.

[0016] In some implementations, the receiving cavity includes a first receiving portion for receiving the pin, a second receiving portion for receiving the first spring, and a third receiving portion for receiving the second spring;

[0017] Both the second and third receiving portions are connected to the first receiving portion to ensure the installation stability of the pin, the first spring, and the second spring, thereby ensuring the stability of the self-resetting of the pressure claw assembly.

[0018] In some implementations, the upper end of the first receiving portion is covered with a first cover plate, and the lower end of the first receiving portion is covered with a second cover plate, which provides a stable installation effect for the pin and ensures the operational stability of the pin.

[0019] In some implementations, the connector has a first connecting end and a second connecting end on the side away from the rotating shaft;

[0020] There is a gap between the first connecting end and the second connecting end;

[0021] The first pressure claw is connected to the first connecting end, and the second pressure claw is connected to the second connecting end. The gap is set to prevent air from entering the air and to avoid interference between the first and second pressure claws during the floating process.

[0022] In some implementations, a first clearance position for avoiding air gaps is formed on one side of the first connecting end opposite to the second connecting end;

[0023] A second clearance position is formed on the side of the second connection end opposite to the first connection end for avoiding air gaps. The first clearance position and the second clearance position are set to avoid interference with the grooving operation of the product.

[0024] In some implementations, a first groove for air clearance and chip removal is formed on the side of the first pressure claw near the second pressure claw;

[0025] A second groove for preventing airflow and removing chips is formed on the side of the second pressure claw near the first pressure claw. The first and second grooves are provided to avoid interference with the grinding operation of the product and to facilitate chip removal.

[0026] In some implementations, the surfaces of the first and second pressure claws that are used to press against the product are curved, ensuring that the first and second pressure claws can still stably press the product after floating.

[0027] In some implementations, the mounting component has a first mounting hole for connecting to an external driving force. The first mounting hole facilitates the alignment and connection of the pressure claw structure with the external driving force, achieving rapid positioning and connection.

[0028] In summary, this utility model has at least the following advantages:

[0029] 1. The floating pressure claw structure provided by this utility model, by setting the rotational relationship between the floating component and the rotating shaft, enables the pressure claw component to provide a stable pressing effect even when the plane of the pressed product is inconsistent, thus improving the stability of the operation and ensuring the working accuracy of the product.

[0030] 2. The floating pressure claw structure provided by this utility model achieves a floating effect through floating components and fixed components, while retaining the original design size data of the pressure claw so that it can continue to be used on the original equipment, reducing material waste. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a floating pressure claw structure provided in Embodiment 1 of this utility model;

[0032] Figure 2 An exploded view of a floating pressure claw structure provided in Embodiment 1 of this utility model;

[0033] Figure 3 This is a schematic diagram of the floating state provided in Embodiment 1 of the present invention;

[0034] Figure 4 This is a schematic diagram of the work scenario provided in Embodiment 1 of this utility model;

[0035] Figure 5An exploded view of a floating pressure claw structure provided in Embodiment 2 of this utility model;

[0036] Figure 6 This is a schematic diagram of the structure of the connector provided in Embodiment 2 of this utility model;

[0037] Figure 7 This is a schematic diagram of the connector provided in Embodiment 3 of this utility model;

[0038] Figure 8 This is a schematic diagram of the pressure claw assembly provided in Embodiment 3 of this utility model;

[0039] Figure 9 This is a schematic diagram of the structure of the mounting component provided in Embodiment 3 of this utility model;

[0040] Marked in the image:

[0041] 100. Fixing component; 110. Mounting part; 111. First mounting hole; 120. Rotating shaft;

[0042] 200, Floating component; 210, Connector; 211, First mounting slot; 212, Receiving cavity; 2121, First receiving portion; 2122, Second receiving portion; 2123, Third receiving portion; 213, First connecting end; 2131, First clearance position; 214, Second connecting end; 2141, Second clearance position;

[0043] 300, Claw assembly; 310, First claw; 311, First groove; 320, Second claw; 321, Second groove;

[0044] 400, Reset assembly; 410, Pin; 420, First spring; 430, Second spring; 440, Third spring; 450, Fourth spring;

[0045] 500. First cover plate;

[0046] 600, Second cover plate. Detailed Implementation

[0047] To facilitate understanding of the present invention, a more comprehensive description will be given below in conjunction with the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0048] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0049] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0051] Example 1:

[0052] Please see Figures 1-4 A floating pressure claw structure includes a fixed component 100, a floating component 200, and a pressure claw component 300. The pressure claw component 300 is connected to the floating component 200. The floating component 200 is rotatably mounted on the fixed component 100. The fixed component 100 is used to connect with an external driving force, so that the floating pressure claw structure can press the product under the action of the external driving force. The floating component 200 and the fixed component 100 are rotatably connected. When the surface of the product pressed by the pressure claw component 300 is uneven, the pressure claw component 300 can rotate relative to the fixed component 100 in conjunction with the floating component 200.

[0053] In this embodiment, the product used is a cylinder. During the groove grinding operation of the cylinder, the cylinder is pressed by the pressure claw assembly 300 to ensure the stability of the cylinder's position. Of course, it can also be applied to the pressing and positioning of other products. This embodiment does not impose any specific limitations on this.

[0054] The fixed component 100 includes a mounting part 110 and a rotating shaft 120. One end of the rotating shaft 120 is fixedly connected to the side of the mounting part 110. The floating component 200 includes a connector 210. The connector 210 has a first mounting groove 211 on the side facing the rotating shaft 120. The other end of the rotating shaft 120 is rotatably disposed in the first mounting groove 211.

[0055] The pressure claw assembly 300 includes a first pressure claw 310 and a second pressure claw 320, which are connected side by side to the connector 210 on the side away from the rotating shaft 120.

[0056] During actual operation, under the action of external driving force, the fixed component 100 moves downward in conjunction with the floating component 200 and the pressure claw component 300, so that the pressure claw component 300 presses against the upper end face of the cylinder. When there is unevenness on the upper end face of the cylinder, the pressure claw component 300 can rotate relative to the mounting component 110 based on the rotating shaft 120, in conjunction with the connecting component 210. During this process, the first pressure claw 310 and the second pressure claw 320 float simultaneously to ensure a stable pressing effect, improve the stability of the operation and ensure the working accuracy of the product.

[0057] This embodiment provides a floating pressure claw structure. By setting the rotational relationship between the floating component 200 and the rotating shaft 120, the pressure claw component 300 can still provide a stable pressing effect when the plane of the pressed product is inconsistent, thus improving the stability of the operation and ensuring the accuracy of the product. The floating effect is achieved by the floating component 200 and the fixed component 100, while retaining the original design dimensions of the pressure claw, so that it can continue to be used on the original equipment, reducing material waste.

[0058] Example 2:

[0059] This embodiment makes further structural optimizations based on Embodiment 1. Please refer to... Figures 1-4 Based on the above Figure 5 and Figure 6 .

[0060] In this embodiment, the floating pressure claw structure also includes a reset assembly 400. The connector 210 has a receiving cavity 212 for accommodating the reset assembly 400. On the one hand, the receiving cavity 212 provides a stable accommodating and mounting function for the reset assembly 400. On the other hand, it can ensure the self-resetting function of the reset assembly 400 on the connector 210 and the pressure claw assembly 300.

[0061] The reset assembly 400 includes a pin 410, a first spring 420 and a second spring 430. The pin 410 passes through the rotating shaft 120, and the first spring 420 and the second spring 430 abut against opposite sides of the upper end of the pin 410.

[0062] Specifically, the pin 410 passes through the rotating shaft 120, with its upper end exposed on the shaft 120. The first spring 420 and the second spring 430 abut against the opposite sides of the upper end of the pin 410. The pin 410 is distributed along the pressing direction of the pressure claw assembly 300, that is, the pin 410 is distributed from top to bottom and located in the pressing direction of the pressure claw assembly 300. The first spring 420 and the second spring 430 are located in the rotation direction of the connector 210. The pressure claw assembly 300 is self-reset by setting the reset assembly 400, and the initial pressure is pre-applied to ensure that the pressure claw assembly 300 will not swing.

[0063] During operation, under the action of external driving force, the fixed component 100 moves downward in conjunction with the floating component 200 and the pressure claw component 300, causing the pressure claw component 300 to press against the upper end face of the cylinder. When the upper end face of the cylinder is uneven, the pressure claw component 300, in conjunction with the connecting member 210, rotates relative to the mounting member 110 based on the rotating shaft 120. During this process, one of the first spring 420 and the second spring 430 is compressed and the other is stretched. For example, when the connecting member 210 rotates towards the first spring 420, the first spring 420 is compressed and the second spring 430 is stretched; when the connecting member 210 rotates towards the second spring 430, the second spring 430 is compressed and the first spring 420 is stretched; when the floating pressure claw structure moves upward under the action of external driving force, releasing the pressing effect on the upper end face of the cylinder, the first spring 420 and the second spring 430 return to their initial state, thus allowing the pressure claw component 300 and the connecting member 210 to return to their initial state.

[0064] It should be noted that the pin 410 passes through the rotating shaft 120 and is fixedly connected to the rotating shaft 120. When the connector 210 and the pressure claw assembly 300 float, the positions of the pin 410 and the rotating shaft 120 remain unchanged, so that the first spring 420 and the second spring 430 can change to a compressed or stretched state under the restriction of the pin 410 and the receiving cavity 212.

[0065] In some embodiments, the reset assembly 400 further includes a third spring 440 and a fourth spring 450, which abut against opposite sides of the lower end of the pin 410. The third spring 440 and the fourth spring 450 are located in the rotation direction of the connector 210. By adding the third spring 440 and the fourth spring 450, the initial pressure on the pressure claw assembly 300 can be increased and the self-resetting effect can be further improved.

[0066] Understandably, the self-resetting effect of the third spring 440 and the fourth spring 450 is the same as that of the first spring 420 and the second spring 430. Adding the third spring 440 and the fourth spring 450 to the lower end of the pin 410 can increase the initial pressure on the pressure claw assembly 300. At the same time, it can also play a role in balancing the initial pressure generated by the first spring 420 and the second spring 430 located at the upper end of the pin 410.

[0067] In some embodiments, the receiving cavity 212 includes a first receiving portion 2121 for receiving the pin 410, a second receiving portion 2122 for receiving the first spring 420, and a third receiving portion 2123 for receiving the second spring 430; the second receiving portion 2122 and the third receiving portion 2123 are both connected to the first receiving portion 2121 to ensure the installation stability of the pin 410, the first spring 420 and the second spring 430, thereby ensuring the stability of the self-resetting of the pressure claw assembly 300.

[0068] Specifically, the internal structure of the first receiving portion 2121 matches the shape of the pin 410. Similarly, the internal structure of the second receiving portion 2122 matches the shape of the first spring 420, and the internal structure of the third receiving portion 2123 matches the shape of the second spring 430, so as to ensure that the pin 410, the first spring 420 and the second spring 430 are all stably installed.

[0069] In this embodiment, after the pin 410 passes through the rotating shaft 120, it is locked to the rotating shaft 120 by a locking member. The first spring 420 is installed in the second receiving portion 2122. One end of the first spring 420 abuts against the upper end of the pin 410, and the other end of the first spring 420 is locked inside the second receiving portion 2122 by the locking member. One end of the second spring 430 abuts against the upper end of the pin 410, and the other end of the second spring 430 is locked inside the third receiving portion 2123 by the locking member.

[0070] In some embodiments, the upper end of the first receiving portion 2121 is covered with a first cover plate 500, and the lower end of the first receiving portion 2121 is covered with a second cover plate 600. The first cover plate 500 and the second cover plate 600 cover the upper and lower ends of the pin 410, thereby achieving a stable installation effect on the pin 410 and ensuring the operational stability of the pin 410.

[0071] Example 3:

[0072] This embodiment makes further structural optimizations based on Embodiment 1. Please refer to... Figures 1-4 Based on the above Figures 7-9 .

[0073] In this embodiment, a first connecting end 213 and a second connecting end 214 are formed on the side of the connector 210 away from the rotating shaft 120; there is a gap between the first connecting end 213 and the second connecting end 214; a first pressure claw 310 is connected to the first connecting end 213 and a second pressure claw 320 is connected to the second connecting end 214. The gap between the first connecting end 213 and the second connecting end 214 serves to prevent air leakage and also avoids interference between the first pressure claw 310 and the second pressure claw 320 during the floating process.

[0074] As is known, the pressure claw assembly 300 is used to press the upper end face of the cylinder body to facilitate stable groove grinding operation of the cylinder body. During the groove grinding operation, there will be a grinding wheel structure. Here, the gap between the first connecting end 213 and the second connecting end 214 is used to prevent the grinding wheel structure from being exposed, so as to achieve normal groove grinding operation. In addition, the gap setting can also avoid the first pressure claw 310 and the second pressure claw 320 from interfering with each other during the floating process.

[0075] Specifically, the upper end of the first pressure claw 310 is locked to the first connecting end 213 by screws, and the upper end of the second pressure claw 320 is also locked to the second connecting end 214 by screws. That is, the first pressure claw 310 and the second pressure claw 320 are independent structures with independent connection designs. In this way, the first pressure claw 310 or the second pressure claw 320 can be disassembled and replaced separately when needed. At the same time, the floating action of the first pressure claw 310 and the second pressure claw 320 can be more flexible and not restricted by each other, ensuring a stable pressing effect on the cylinder.

[0076] Furthermore, a first clearance position 2131 for avoiding air gaps is formed on the side of the first connecting end 213 opposite to the second connecting end 214; a second clearance position 2141 for avoiding air gaps is formed on the side of the second connecting end 214 opposite to the first connecting end 213. The first clearance position 2131 and the second clearance position 2141 are set to avoid interference with the grooving operation of the product.

[0077] In some embodiments, a first groove 311 for preventing airflow and removing chips is formed on the side of the first pressure claw 310 near the second pressure claw 320; a second groove 321 for preventing airflow and removing chips is formed on the side of the second pressure claw 320 near the first pressure claw 310. The first groove 311 and the second groove 321 are provided to avoid interfering with the grooving operation of the product and to facilitate chip removal.

[0078] Furthermore, the surfaces of the first pressure claw 310 and the second pressure claw 320 that are used to press against the product are curved surfaces, ensuring that the first pressure claw 310 and the second pressure claw 320 can still stably press against the product after floating.

[0079] In some embodiments, the mounting member 110 has a first mounting hole 111 for connecting with an external driving force. The first mounting hole 111 facilitates the alignment and connection of the pressure claw structure with the external driving force, thereby achieving rapid positioning and connection.

[0080] The above description is merely an example and illustration of the structure of this invention, and while the description is specific and detailed, it should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these obvious substitutions all fall within the protection scope of this invention.

Claims

1. A floating pressure claw structure, characterized in that, It includes a fixed component (100), a floating component (200), and a pressure claw component (300), wherein the pressure claw component (300) is connected to the floating component (200), and the floating component (200) is rotatably mounted on the fixed component (100); The fixing component (100) includes a mounting part (110) and a rotating shaft (120), one end of which is fixedly connected to the side of the mounting part (110); The floating component (200) includes a connector (210), the connector (210) having a first mounting groove (211) on one side facing the rotating shaft (120), and the other end of the rotating shaft (120) being rotatably disposed in the first mounting groove (211); The pressure claw assembly (300) includes a first pressure claw (310) and a second pressure claw (320), the first pressure claw (310) and the second pressure claw (320) being connected side by side to the connector (210) on the side away from the rotating shaft (120).

2. The floating pressure claw structure according to claim 1, characterized in that, It also includes a reset assembly (400), and the connector (210) has a receiving cavity (212) for accommodating the reset assembly (400). The reset assembly (400) includes a pin (410), a first spring (420), and a second spring (430). The pin (410) passes through the pivot (120), and the first spring (420) and the second spring (430) abut against opposite sides of the upper end of the pin (410). The pins (410) are distributed along the pressing direction of the pressure claw assembly (300), and the first spring (420) and the second spring (430) are located in the rotation direction of the connector (210).

3. The floating pressure claw structure according to claim 2, characterized in that, The reset assembly (400) further includes a third spring (440) and a fourth spring (450), the third spring (440) and the fourth spring (450) respectively abutting against opposite sides of the lower end of the pin (410); The third spring (440) and the fourth spring (450) are located in the rotational direction of the connector (210).

4. The floating pressure claw structure according to claim 2, characterized in that, The receiving cavity (212) includes a first receiving portion (2121) for receiving the pin (410), a second receiving portion (2122) for receiving the first spring (420), and a third receiving portion (2123) for receiving the second spring (430). The second accommodating portion (2122) and the third accommodating portion (2123) are both connected to the first accommodating portion (2121).

5. The floating pressure claw structure according to claim 4, characterized in that, The upper end of the first receiving portion (2121) is covered with a first cover plate (500), and the lower end of the first receiving portion (2121) is covered with a second cover plate (600).

6. The floating pressure claw structure according to claim 1, characterized in that, The connector (210) has a first connecting end (213) and a second connecting end (214) on the side away from the rotating shaft (120). There is a gap between the first connecting end (213) and the second connecting end (214); The first pressure claw (310) is connected to the first connecting end (213), and the second pressure claw (320) is connected to the second connecting end (214).

7. The floating pressure claw structure according to claim 6, characterized in that, A first clearance position (2131) for avoiding air gaps is formed on the side of the first connecting end (213) opposite to the second connecting end (214). A second clearance position (2141) for avoiding air gaps is formed on the side of the second connection end (214) opposite to the first connection end (213).

8. The floating pressure claw structure according to claim 1, characterized in that, A first groove (311) for air clearance and chip removal is formed on the side of the first pressure claw (310) near the second pressure claw (320). A second groove (321) for air clearance and chip removal is formed on the side of the second pressure claw (320) near the first pressure claw (310).

9. The floating pressure claw structure according to claim 1, characterized in that, The surface of the first pressure claw (310) and the second pressure claw (320) used for pressing and contacting the product is an arc-shaped surface.

10. The floating pressure claw structure according to claim 1, characterized in that, The mounting component (110) has a first mounting hole (111) for connecting to an external driving force.