CN220218167U

CN220218167U - Clamping mechanism

Info

Publication number: CN220218167U
Application number: CN202321835858.0U
Authority: CN
Inventors: 宋中锋; 黄晓楠; 苏伟; 王成印; 请求不公布姓名
Original assignee: Hozon New Energy Automobile Co Ltd
Current assignee: Hozon New Energy Automobile Co Ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2023-12-22
Anticipated expiration: 2033-07-12

Abstract

The utility model discloses a clamping mechanism which is used for clamping and fixing a sheet metal structure when the sheet metal structure of an automobile body is detected, and comprises a base, a driving assembly, a transmission assembly and a clamping assembly, wherein the driving assembly, the transmission assembly and the clamping assembly are arranged on the base, the driving assembly is in transmission connection with the clamping assembly through the transmission assembly and is used for driving the clamping assembly to clamp the sheet metal structure through the transmission assembly, the transmission assembly comprises a rack and a gear, the rack is slidably arranged on the base and is meshed with the gear, the gear is in transmission connection with the clamping assembly, and when the rack slides on the base, the rack drives the gear to rotate so as to adjust the clamping degree of the clamping assembly on the sheet metal structure.

Description

Clamping mechanism

Technical Field

The utility model belongs to the technical field of manufacturing of automobile inspection tools, and particularly relates to a clamping mechanism.

Background

With the continuous development of the automobile industry, all parts of the automobile need to be detected in the aspects of outline, size, surface difference and the like before being welded and assembled so as to ensure that the parts meet the quality requirements. Because the sheet metal structure of the automobile body is complex, the sheet metal structure is a thin-wall structure with larger area and complex curved surface, particularly a door part, in the detection process, in order to ensure the accuracy and convenience of detection data acquisition, a clamp is required to extend into a hole of a door from an avoidance hole of the door and rapidly clamp the door from the inner side and avoid the interference of other structures so as to fix the door, and the existing clamp has complex structure, complex operation and weaker universality and is not suitable for clamping the door with larger clamping force. Accordingly, those skilled in the art have been directed to developing a clamping mechanism.

Disclosure of Invention

The utility model aims to provide a clamping mechanism which solves the problems in the prior art.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a clamping mechanism for detect the sheet metal construction of car automobile body time to the sheet metal construction is pressed from both sides tightly fixedly, clamping mechanism includes the base and installs drive assembly, drive assembly and the clamping assembly on the base, drive assembly passes through drive assembly with the clamping assembly transmission is connected, is used for through the drive assembly drive clamping assembly centre gripping sheet metal construction, drive assembly includes rack and gear, the rack slidable install on the base and with gear engagement, the gear with the clamping assembly transmission is connected, when the rack is in when sliding on the base, the rack drives the gear rotates in order to adjust clamping assembly is right the degree of clamp of sheet metal construction.

Preferably, the driving assembly comprises a handle, a guide rod and a fixing plate, wherein the handle is in transmission connection with the guide rod, the guide rod penetrates through the fixing plate, and the fixing plate is fixedly connected to the base.

Preferably, the transmission assembly further comprises a first adjusting rod between the guide rod and the rack, and the first adjusting rod has an adjustable extension length relative to the guide rod and the rack.

Preferably, the transmission assembly further comprises a first fastening nut detachably mounted at the end of the first adjusting rod for fastening the first adjusting rod.

Preferably, the transmission assembly further includes a limiting plate for preventing the rack from being laterally offset with respect to a sliding direction when sliding with respect to the base, the limiting plate being located at one side of the rack.

Preferably, the clamping assembly comprises a turning arm and a pressing head, one end of the turning arm is in transmission connection with the gear, and the pressing head is arranged at the other end of the turning arm.

Preferably, the clamping assembly further comprises a second fastening nut for securing the ram to the invert arm.

Preferably, the clamping assembly further comprises a supporting block for supporting the sheet metal structure, wherein the supporting block is fixedly installed on the base and is arranged opposite to the pressure head.

Preferably, a clamping gap with adjustable width for accommodating the sheet metal structure is formed between the supporting block and the pressure head.

Preferably, the support block is provided with a guide hole, and the first adjusting rod is arranged in the guide hole in a penetrating manner.

In summary, the utility model has the following beneficial effects:

the utility model has simple structure and convenient operation, can rapidly realize reliable clamping and fixing of the sheet metal structure of the automobile body, ensures accurate measurement of detection data before welding the automobile parts, and ensures the tightness and the precision requirement of the whole automobile in the subsequent welding process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a clamping mechanism according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of the clamping mechanism of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the drive assembly of the clamping mechanism of FIG. 1;

FIG. 4 is a schematic view of the drive assembly of the clamping mechanism of FIG. 1;

fig. 5 is a schematic view of the clamping assembly of the clamping mechanism of fig. 1.

Reference numerals illustrate:

11. a base; 12. a drive assembly; 13. a transmission assembly; 14. a clamping assembly;

121. a handle; 122. a handle connecting plate; 123. a guide cylinder; 124. a guide rod; 125. a fixing plate; 126. a third fastening nut;

131. a first adjusting lever; 132. a first fastening nut; 133. a rack; 134. a limiting plate; 135. a gear;

141. a pressure head; 142. a second fastening nut; 143. a flip arm; 144. and a supporting block.

Detailed Description

Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms described above will be understood to those of ordinary skill in the art in a specific context.

The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," and the like are used as references to orientations or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the inventive product is conventionally disposed in use, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore are not to be construed as limiting the utility model.

The terms "first," "second," "third," and the like, are merely used for distinguishing between similar elements and not necessarily for indicating or implying a relative importance or order.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements does not include only those elements but may include other elements not expressly listed.

Referring to fig. 1, a clamping mechanism according to a preferred embodiment of the present utility model is used for clamping and fixing a sheet metal structure when detecting the sheet metal structure of an automobile body. The sheet metal structure of the vehicle body refers to a thin-wall structure with a large area and a complex curved surface on the vehicle body, and in this embodiment, may refer to a vehicle door. The clamping mechanism comprises a base 11, a driving assembly 12, a transmission assembly 13 and a clamping assembly 14, wherein the driving assembly 12, the transmission assembly 13 and the clamping assembly 14 are mounted on the base 11.

Referring to fig. 2, in order to facilitate assembling the driving component 12, the transmission component 13 and the clamping component 14, the base 11 has a plate-shaped structure, wherein the driving component 12 is fixedly connected to one side surface of one end, the top of the other end protrudes upwards to extend to form a step-shaped structure, and the transmission component 13 for transmission connection with the clamping component 14 is arranged on two intersecting planes on the step-shaped structure.

Referring to fig. 4, the transmission assembly 13 includes a rack 133 and a gear 135, wherein the rack 133 has a bar-shaped structure, is slidably mounted on one plane of the stepped structure of the base 11 and is engaged with the gear 135, and the gear 135 is rotatably connected to the other plane intersecting the plane of the rack 133 and is in transmission connection with the clamping assembly 14. Thus, when the rack 133 slides on the base 11, the rack 133 drives the gear 135 to rotate to adjust the clamping degree of the clamping assembly 14 on the vehicle door.

In this embodiment, the driving assembly 12 is used for driving the transmission assembly 13 to move and transmitting power to the clamping assembly 14 through the transmission assembly 13, and the clamping assembly 14 is used for rapidly clamping and fixing the vehicle door, so that a person can perform detection operations on the outline, the size, the surface difference and the like of the vehicle door, and process consistency is ensured, and the vehicle door is shown in fig. 3, and comprises a handle 121, a guide rod 124 and a fixing plate 125, wherein the handle 121 is in an L-shaped structure and is rotationally connected with the guide rod 124, the guide rod 124 is in a straight rod shape and penetrates into the fixing plate 125, and the fixing plate 125 is in a plate-shaped structure and is fixedly connected with the base 11 through a fastening screw. Fig. 1 is a schematic view showing a state of the clamping mechanism when clamping the door, and when the operation handle 121 rotates clockwise, the guide bar 124 is driven to move linearly to the right; when the operating handle 121 is rotated counterclockwise, the guide bar 124 is driven to move linearly to the left.

In this embodiment, for guiding the guiding rod 124 during the moving process, the driving assembly 12 further includes a handle connecting plate 122, a guiding cylinder 123 and a third fastening nut 126, as shown in fig. 3, wherein the handle connecting plate 122 has an H-shaped structure, and is located between the handle 121 and the guiding cylinder 123, and the three are rotatably connected; the guide cylinder 123 has a hollow cylindrical structure, and an external thread matched with the third fastening nut 126 is formed on the outer circumferential surface. Along the length extending direction of the guide rod 124, the guide rod 124 sequentially passes through the guide cylinder 123, the fixing plate 125 and the third fastening nut 126. In this way, the guide rod 124 can stably perform linear movement under the guide action of the guide cylinder 123, and the power transmission efficiency is ensured.

In order to accurately detect the door component before the welding assembly, a large force is generally required for clamping the door, and in order to facilitate adjustment of the force, as shown in fig. 4, the transmission assembly 13 further includes a first adjusting rod 131 disposed between the guide rod 124 and the rack 133, one end of the first adjusting rod 131 is connected to the guide rod 124 through a screw structure, and the other end is also connected to the rack 133 through a screw structure. Thus, when the first adjusting lever 131 is connected between the guide bar 124 and the rack 133, the extension length of the first adjusting lever 131 with respect to the rack 133 can be preset by screwing in or unscrewing the first adjusting lever 131 with respect to the rack 133.

In order to prevent the first adjusting lever 131 from slipping during the use of the clamping mechanism, so as to ensure safe operation, in this embodiment, the first fastening nuts 132 are mounted at two ends of the first adjusting lever 131, one of the first fastening nuts 132 is mounted between the first adjusting lever 131 and the rack 133, and the other is mounted between the first adjusting lever 131 and the guide bar 124. Thus, when the operation length of the first adjustment lever 131 is preset, the first adjustment lever 131 is fastened by the first fastening nut 132.

In order to prevent the rack 133 from moving laterally when the driving assembly 12 drives the rack 133 to move linearly, the driving assembly 13 further includes a limiting plate 134, as shown in fig. 4, the limiting plate 134 has a plate-like structure, and a through hole is formed on a surface of the rack 133 and fixedly connected to the base 11 by a screw. Thus, when the rack 133 is linearly moved, the stopper plate 134 can play a role of guiding and laterally restricting it.

Referring to fig. 5, the clamping assembly 14 includes a pressing head 141 and a turning arm 143, wherein the turning arm 143 is a structure that is bent in shape and turned back above the base 11, one end of the turning arm 143 is fixedly connected with the gear 135, and the pressing head 141 is mounted at the other end. It should be noted that, the middle portion of the gear 135 is formed with an extended axle, and the turning arm 143 is that after the outer surface of the axle is matched, the turning arm 143 is fastened by using a jackscrew in a matched manner, so as to ensure the reliable connection between the turning arm 143 and the gear 135. Thus, when the gear 135 is in rotational motion, the flipping arm 143 rotates in synchronization with the gear 135.

The pressure head 141 is straight rod, is formed by connecting a butt rod and a second adjusting rod, wherein the butt rod is positioned at the front end of the pressure head 141 and used for being abutted against one side surface of the vehicle door, and the second adjusting rod is positioned at the rear end of the pressure head 141 and used for adjusting the abutting degree of the butt rod on the vehicle door.

In order to increase the contact area between the abutting rod and the vehicle door, unnecessary damage or scratch caused after the abutting rod contacts with the vehicle door is avoided, and the cross-sectional area of the abutting rod is larger than that of the second adjusting rod.

In the production process of an automobile, more holes, such as functional holes and craftwork holes, are reserved on the automobile door in the design process in order to ensure the convenience of automobile door coating, weight reduction and the like. Before the welding assembly of the automobile body, in the process of detecting the technological consistency of the automobile door, a clamping mechanism is generally required to extend in from a roughly trapezoidal technological hole (not shown in the figure) on the side surface of the automobile door, and the automobile door is quickly clamped from the inner side after avoiding the interference of other structures. In addition, one end of the turnover arm 143 is provided with a through hole for coaxial installation with the gear 135, and the other end is provided with another through hole for installation of a second adjusting lever for the rear end of the pressing head 141.

In order to prevent the pressing head 141 from slipping during the use of the clamping mechanism, and to ensure safe operation, in this embodiment, the clamping assembly 14 further includes second fastening nuts 142 for fixing the pressing head 141 to the flipping arm 143, as shown in fig. 5, the number of the second fastening nuts 142 is two, and the second fastening nuts are located on the second adjusting rod and press the flipping arm 143 from both sides of the end of the flipping arm 143, respectively. Thus, when the second fastening nut 142 is unscrewed, the adjustment of the compression degree of the abutting rod against the door can be achieved by adjusting the extension length of the second adjusting rod with respect to the tilting arm 143, and the fixed connection of the ram 141 can be ensured by screwing the second fastening nut 142.

In some embodiments, to ensure that the door is uniformly stressed, the clamping assembly 14 further includes a supporting block 144 for supporting one side of the door, as shown in fig. 5, the supporting block 144 has a stepped structure, a through hole fixedly connected to the base 11 by a fastening screw is formed at the bottom, and a plane on which the top is located is used for contacting with a side surface of the door. Preferably, the top of the support block 144 is disposed opposite the ram 141.

Since the door of the automobile has a certain thickness, preferably, a clamping gap with adjustable width is formed between the supporting block 144 and the pressing head 141, so as to accommodate doors of different sizes.

In some embodiments, to further ensure the movement direction of the first adjusting rod 131, a guide hole for guiding the first adjusting rod 131 is formed on a side surface of the supporting block 144, so that the first adjusting rod 131 cannot deviate in direction during movement, and transmission efficiency is ensured.

Compared with the prior art, the utility model has the following beneficial effects:

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.

Claims

1. The utility model provides a clamping mechanism for when detecting the sheet metal structure of car automobile body, is used for carrying out clamp fixing to sheet metal structure, its characterized in that, clamping mechanism includes base (11) and installs drive assembly (12), drive assembly (13) and clamp assembly (14) on base (11), drive assembly (12) pass through drive assembly (13) with clamp assembly (14) transmission is connected, is used for through drive assembly (13) drive clamp assembly (14) centre gripping sheet metal structure, drive assembly (13) include rack (133) and gear (135), rack (133) slidable install on base (11) and with gear (135) meshing, gear (135) with clamp assembly (14) transmission is connected, when rack (133) are in when sliding on base (11), rack (133) drive gear (135) rotate in order to adjust clamp assembly (14) to the degree of clamp of sheet metal structure.

2. The clamping mechanism as claimed in claim 1, characterized in that the drive assembly (12) comprises a handle (121), a guide rod (124) and a fixing plate (125), wherein the handle (121) is in transmission connection with the guide rod (124), the guide rod (124) is arranged in the fixing plate (125) in a penetrating manner, and the fixing plate (125) is fixedly connected to the base (11).

3. The clamping mechanism as claimed in claim 2, characterized in that the transmission assembly (13) further comprises a first adjustment lever (131) between the guide bar (124) and the rack (133), the first adjustment lever (131) having an adjustable extension with respect to the guide bar (124) and the rack (133).

4. A clamping mechanism according to claim 3, wherein the transmission assembly (13) further comprises a first fastening nut (132) detachably mounted at an end of the first adjustment rod (131) for fastening the first adjustment rod (131).

5. The clamping mechanism of claim 4, wherein the transmission assembly (13) further comprises a limiting plate (134) for preventing the rack (133) from being laterally offset with respect to a sliding direction when sliding with respect to the base (11), the limiting plate (134) being located at one side of the rack (133).

6. The clamping mechanism of claim 5, wherein the clamping assembly (14) comprises a flipping arm (143) and a ram (141), one end of the flipping arm (143) is in driving connection with the gear (135), and the ram (141) is mounted to the other end of the flipping arm (143).

7. The clamping mechanism of claim 6, wherein the clamping assembly (14) further comprises a second fastening nut (142) for securing the ram (141) to the invert arm (143).

8. The clamping mechanism of claim 7, wherein the clamping assembly (14) further comprises a support block (144) for supporting the sheet metal structure, the support block (144) being fixedly mounted on the base (11) and disposed opposite the ram (141).

9. The clamping mechanism of claim 8, wherein a width adjustable clamping gap is formed between the support block (144) and the ram (141) for receiving the sheet metal structure.

10. The clamping mechanism as set forth in claim 9, characterized in that the support block (144) is provided with a guide hole, and the first adjustment rod (131) is disposed through the guide hole.