Clamping device
By using a combination of support plates and pressure plates to clamp the parts, the stress point is changed, which solves the problem of deformation of thin-walled parts caused by traditional three-jaw chucks and improves the yield of processed products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-24
AI Technical Summary
When machining high-cavity, thin-walled parts, traditional three-jaw chucks concentrate the force at the very center, causing deformation of the sidewalls of the thin-walled parts and reducing the yield rate.
A combination clamping device consisting of a support plate, a pressure plate, and a locking element is used to change the force point to a downward force point, thus avoiding compression of the sidewalls of thin-walled parts.
It prevents deformation of thin-walled parts, improves yield, and increases the overall yield of processed parts.
Smart Images
Figure CN224027422U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-cavity thin-walled parts processing technology, and in particular to a clamping device. Background Technology
[0002] When machining high-cavity thin-walled parts, traditional three-jaw chucks only have three support points on the force-bearing surface. When the three-jaw chuck tightens, all the force points are concentrated at the very center of the high-cavity thin-walled part, causing the side walls of the high-cavity thin-walled part to deform under stress, changing the current state of the high-cavity thin-walled part, causing damage to the high-cavity thin-walled part, and reducing the yield rate.
[0003] Therefore, there is an urgent need for a clamping device to solve the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this invention is to provide a clamping device that can prevent deformation of thin-walled parts with high cavities and improve yield.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A clamping device includes: a support plate, a plurality of pressure plates, and a plurality of locking members. The support plate is used to support a workpiece. One end of the workpiece is provided with a flange. The bottom wall of the flange is in contact with the top wall of the support plate. The plurality of pressure plates are arranged at intervals along the circumference of the flange, and some of the pressure plates are in contact with the top wall of the flange. The plurality of locking members are arranged one-to-one with the plurality of pressure plates. The locking members can pass through the pressure plates and connect to the support plate so that the pressure plates press the flange tightly.
[0007] As a preferred embodiment of the above-mentioned clamping device, the pressure plate is provided with an elongated through hole, the locking member can pass through the elongated through hole and connect with the support plate, and the locking member can move along the wall of the elongated through hole.
[0008] As a preferred embodiment of the above-mentioned clamping device, the support plate is provided with a plurality of connecting holes, one end of the locking member can pass through the elongated through hole and connect to the hole wall of the connecting hole, and the other end of the locking member can abut against the top wall of the pressure plate.
[0009] As a preferred technical solution of the above-mentioned clamping device, a plurality of the connecting holes are arranged in an array, with m rows arranged along the circumferential direction of the support plate and n columns arranged along the radial direction of the support plate, where m and n are both integers greater than 1.
[0010] As a preferred embodiment of the above-mentioned clamping device, a portion of the connecting holes are first threaded holes, and another portion of the connecting holes are second threaded holes. A portion of the locking element is a first bolt, and another portion of the locking element is a second bolt. The first bolt can be threadedly connected to the wall of the first threaded hole, and the second bolt can be threadedly connected to the wall of the second threaded hole.
[0011] As a preferred embodiment of the above-mentioned clamping device, the clamping device further includes a base and a plurality of clamping members, the plurality of clamping members being arranged at intervals along the circumference of the support plate, and the clamping members being slidably disposed on the base, the clamping members being able to abut against the side wall of the support plate.
[0012] As a preferred embodiment of the above-mentioned clamping device, the base is provided with a plurality of sliding grooves spaced apart along the circumference, and the clamping member is slidably disposed in the sliding grooves.
[0013] As a preferred embodiment of the above-mentioned clamping device, the clamping member includes a slider and a locking member. The slider is slidably disposed in the groove, one end of the slider can abut against the side wall of the support plate, and one end of the locking member can pass through the slider and abut against the groove wall of the groove.
[0014] As a preferred embodiment of the above-mentioned clamping device, the clamping device is further provided with three clamping members, which are evenly spaced along the circumference of the support plate.
[0015] As a preferred embodiment of the above-mentioned clamping device, the clamping device is provided with four pressure plates, which are evenly spaced along the circumference of the flange.
[0016] The beneficial effects of this utility model are:
[0017] This utility model provides a clamping device. The clamping device includes: a support plate, several pressure plates, and several locking components. The support plate supports the workpiece, and one end of the workpiece has a flange protruding from it. The bottom wall of the flange is in contact with the top wall of the support plate. The several pressure plates are spaced apart along the circumference of the flange, and some of the pressure plates are in contact with the top wall of the flange. The several locking components are arranged one-to-one with the several pressure plates, and the locking components can pass through the pressure plates and connect to the support plate so that the pressure plates press the flange tightly. Compared with the prior art, this clamping device changes the force point of clamping, transforming the force point facing the center into a downward force point, thereby avoiding the pressure point on the side wall of the thin-walled workpiece, preventing the thin-walled workpiece from deforming, and improving the yield rate. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 the content of the embodiments of this utility model and these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the clamping device provided in an embodiment of the present utility model.
[0020] In the picture:
[0021] 1. Support plate; 11. First threaded hole; 12. Second threaded hole; 2. Workpiece; 21. Flanged edge; 3. Base; 31. Slide groove; 4. Clamping component; 41. Slider; 42. Locking component. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0025] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0026] like Figure 1 As shown, this utility model provides a clamping device. The clamping device includes: a support plate 1, several pressure plates (not shown in the figure), and several locking members. Specifically, the support plate 1 is used to support the workpiece 2. One end of the workpiece 2 is provided with a flange 21. The bottom wall of the flange 21 is in contact with the top wall of the support plate 1. Several pressure plates are arranged at intervals along the circumference of the flange 21, and some pressure plates are in contact with the top wall of the flange 21. Several locking members are arranged one-to-one with several pressure plates. The locking members can pass through the pressure plates and connect to the support plate 1 so that the pressure plates press the flange 21. Compared with the prior art, this clamping device changes the force point of clamping, transforming the force point facing the center into a downward force point, thereby avoiding the pressure point on the side wall of the thin-walled part, preventing the thin-walled part from deforming, and improving the yield.
[0027] Optionally, the pressure plate is provided with an elongated through hole, through which a locking member can pass and connect to the support plate 1, and the locking member can move along the wall of the elongated through hole. Specifically, one end of the locking member passes through the elongated through hole and connects to the support plate 1. For different workpieces 2, releasing the locking member can adjust the position of the pressure plate, thereby improving the versatility of the clamping device.
[0028] Furthermore, the support plate 1 is provided with several connecting holes. One end of the locking member can pass through the elongated through hole and connect to the hole wall of the connecting hole, while the other end of the locking member can abut against the top wall of the pressure plate. Specifically, for different workpieces 2, the locking member is loosened, causing the other end of the locking member to separate from the top wall of the pressure plate. The locking member is then pushed, causing it to move along the hole wall of the elongated through hole to a suitable position. Finally, the locking member is tightened, causing the other end of the locking member to abut against the top wall of the pressure plate, thereby fixing the pressure plate.
[0029] Optionally, a plurality of connecting holes are arranged in an array, with m rows arranged along the circumference of the support plate 1 and n columns arranged along the radial direction of the support plate 1, where m and n are both integers greater than 1. Specifically, different connecting holes can be selected for different sized workpieces 2 to adjust the position of the pressure plate, and then fine-tuned through the elongated through holes to determine the position of the pressure plate, thereby further improving the versatility of the clamping device.
[0030] Optionally, a portion of the connecting holes are first threaded holes 11, and another portion are second threaded holes 12. A portion of the locking element is a first bolt, and the other portion is a second bolt. The first bolt can be threadedly connected to the wall of the first threaded hole 11, and the second bolt can be threadedly connected to the wall of the second threaded hole 12. Specifically, the first bolt is an M6 bolt, and the second bolt is an M8 bolt. To accommodate workpieces 2 of different sizes and types, the clamping device is provided with 96 M8 threaded holes and 48 M6 threaded holes. The 96 M8 threaded holes are arranged in eight rows along the circumference of the support plate 1, with twelve M8 threaded holes in each row. The 48 M6 threaded holes are evenly arranged in four rows along the circumference of the support plate 1, with twelve M6 threaded holes in each row, and two M8 threaded holes are provided between adjacent rows of M6 threaded holes.
[0031] Optionally, in this embodiment, the clamping device is provided with four pressure plates, which are evenly spaced along the circumference of the flange 21. Of course, in other embodiments, the number of pressure plates is determined according to the actual situation, which will not be elaborated here.
[0032] Optionally, the clamping device further includes a base 3 and a plurality of clamping members 4. The clamping members 4 are spaced apart circumferentially along the support plate 1, and are slidably disposed on the base 3. The clamping members 4 can abut against the side wall of the support plate 1. Specifically, by clamping the support plate 1 onto the base 3 with the plurality of clamping members 4, the stability of the support plate 1 can be improved, thereby improving the stability of the workpiece 2. At the same time, the slidable disposal of the clamping members 4 on the base 3 allows for adjustment of the position of the clamping members 4 to accommodate support plates 1 of different sizes, thus improving the versatility of the clamping device.
[0033] Optionally, in this embodiment, the clamping device is further provided with three clamping members 4, which are evenly spaced along the circumference of the support plate 1. Of course, in other embodiments, the number of clamping members 4 is determined according to the actual situation, which will not be elaborated here.
[0034] Optionally, the base 3 is provided with a plurality of sliding grooves 31 at intervals along the circumference. The sliding grooves 31 extend radially along the base plate, and the clamping members 4 are slidably disposed in the sliding grooves 31. Specifically, the cross-section of the sliding grooves 31 is convex. Part of the clamping members 4 is inserted into the sliding grooves 31 and can abut against the top wall of the sliding grooves 31. The remaining clamping members 4 are located above the top surface of the base plate, which can adjust the position of the clamping members 4 and prevent the clamping members 4 from separating from the base 3 in the vertical direction. Further, in this embodiment, the base 3 is provided with twelve sliding grooves 31 at even intervals along the circumference. Of course, in some other embodiments, the number of sliding grooves 31 is determined according to the actual situation, which will not be elaborated here.
[0035] Optionally, the clamping member 4 includes a slider 41 and a locking member 42. The slider 41 is slidably disposed in the groove 31, and one end of the slider 41 can abut against the side wall of the support plate 1. One end of the locking member 42 can pass through the slider 41 and abut against the groove wall of the groove 31. Specifically, the clamping member 4 is provided with two locking members 42, which are spaced apart to improve the locking effect of the slider 41 and ensure the stability of the support plate 1. Further, the slider 41 is provided with two through holes, which correspond one-to-one with the two locking members 42. One end of the locking member 42 can pass through the through hole and abut against the groove wall of the groove 31.
[0036] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.
Claims
1. A clamping device, characterized in that include: The support plate (1), several pressure plates, and several locking components are provided. The support plate (1) is used to support the workpiece (2). One end of the workpiece (2) is provided with a flange (21). The bottom wall of the flange (21) is attached to the top wall of the support plate (1). Several pressure plates are arranged at intervals along the circumference of the flange (21), and some of the pressure plates are attached to the top wall of the flange (21). Several locking components are arranged in correspondence with several pressure plates. The locking components can pass through the pressure plates and connect to the support plate (1) so that the pressure plates press the flange (21).
2. A clamping device according to claim 1, characterised in that The pressure plate is provided with an elongated through hole, and the locking member can pass through the elongated through hole to connect with the support plate (1), and the locking member can move along the hole wall of the elongated through hole.
3. A clamping device according to claim 2, wherein The support plate (1) is provided with several connecting holes. One end of the locking member can pass through the elongated through hole and connect to the hole wall of the connecting hole. The other end of the locking member can abut against the top wall of the pressure plate.
4. A clamping device according to claim 3, wherein The array of several connecting holes is distributed with m rows arranged along the circumferential direction of the support plate (1) and n columns arranged along the radial direction of the support plate (1), where m and n are both integers greater than 1.
5. A clamping device according to claim 3, wherein One part of the connecting holes is a first threaded hole (11), and another part of the connecting holes is a second threaded hole (12). One part of the locking element is a first bolt, and another part of the locking element is a second bolt. The first bolt can be threadedly connected to the hole wall of the first threaded hole (11), and the second bolt can be threadedly connected to the hole wall of the second threaded hole (12).
6. A clamping device according to any one of claims 1-5, characterised in that The clamping device further includes a base (3) and a plurality of clamping members (4), the plurality of clamping members (4) are arranged at intervals along the circumference of the support plate (1), and the clamping members (4) are slidably disposed on the base (3), and the clamping members (4) can abut against the side wall of the support plate (1).
7. A clamping device according to claim 6, characterized in that, The base (3) is provided with a plurality of sliding grooves (31) spaced apart along the circumference, and the clamping member (4) is slidably disposed in the sliding grooves (31).
8. A clamping device according to claim 7, characterized in that, The clamping member (4) includes a slider (41) and a locking member (42). The slider (41) is slidably disposed in the groove (31). One end of the slider (41) can abut against the side wall of the support plate (1). One end of the locking member (42) can pass through the slider (41) and abut against the groove wall of the groove (31).
9. A clamping device according to claim 6, characterized in that, The clamping device is further provided with three clamping members (4), which are evenly spaced along the circumference of the support plate (1).
10. A clamping device according to any one of claims 1-5, characterized in that, The clamping device is provided with four pressure plates, which are evenly spaced along the circumference of the flange (21).