A quick-release clamping mechanism for automobile inspection fixtures

Abstract

The present invention relates to a quick-release clamping mechanism for automobile inspection fixtures, comprising a fixed block, a sliding block, a rotating central axis and a control rope; the fixed block is provided with a fixed hook; the sliding block comprises a sliding hook, a guide part and a driven part, the sliding hook corresponds to the position of the fixed hook, and the guide part is located in a slide groove on the fixed block; the rotating central axis is located in a receiving groove on the fixed block, the rotating central axis comprises a screw and a sleeve, the screw and the sleeve are coaxially connected, the screw passes through the screw hole on the driven part, and a limiting disk is provided on the sleeve; the end of the control rope is provided with a transmission end shaft, and the transmission end shaft is detachably connected to the sleeve of the rotating central axis. The present invention can clamp and position the connection structure on the inner side of the sheet metal in an environment with extremely limited space, realize stable positioning and clamping, and can perform quick-release operation at the same time, which is convenient for positioning, clamping and removing the sheet metal.

Description

Technical Field

[0001] The invention relates to a clamping mechanism for a checking tool, in particular to a quick-release clamping mechanism for an automobile checking tool. Background Art

[0002] After the production and processing of the vehicle frame and sheet metal are completed, comprehensive testing is required on the inspection fixture to check whether parameters such as position and assembly accuracy meet the design requirements.

[0003] Since the structure of the inspection fixture, the vehicle frame and the vehicle sheet metal are relatively complex, the internal space is small, and the connection structures such as the buckles of the sheet metal are all located on the inside, it is impossible to use cylinders or clamps and other mechanisms that have space requirements for clamping when positioning and clamping the connection structures on the inside of the sheet metal. If screws and pressure blocks are used for positioning and clamping, the operation of screwing the screws is very inconvenient. Summary of the invention

[0004] The purpose of the present invention is to provide a quick-release clamping mechanism for an automobile inspection fixture, which can clamp and position the connecting structure inside the sheet metal part in an environment with extremely limited space, thereby achieving stable positioning and clamping, and can also perform a quick-release operation to loosen the connecting structure inside the sheet metal part, thereby facilitating the positioning, clamping and removal of the sheet metal part.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A quick-release clamping mechanism for an automobile inspection fixture comprises a fixed block, a sliding block, a rotating central axis and a control rope; the fixed block is provided with a fixed hook; the sliding block comprises a sliding hook, a guide part and a driven part, the sliding hook corresponds to the position of the fixed hook, and the guide part is located in a slide groove on the fixed block; the rotating central axis is located in an accommodating groove on the fixed block, the rotating central axis comprises a screw and a sleeve, the screw and the sleeve are coaxially connected, the screw passes through a screw hole on the driven part, a limiting disk is provided on the sleeve, and the limiting disk is located in a limiting groove on the fixed block; the end of the control rope is provided with a transmission end shaft, and the transmission end shaft is detachably connected to the sleeve of the rotating central axis.

[0007] Furthermore, the sliding groove and the fixed hook are both located on the same side of the fixed block; the accommodating groove and the limiting groove are both located on the other side of the fixed block, the sliding groove is parallel to the accommodating groove, and the limiting groove is perpendicular to the accommodating groove; the width of the limiting groove is consistent with the thickness of the limiting plate.

[0008] Furthermore, the driven part of the sliding block is perpendicular to the guiding part, and the driven part is specifically located on a side of the fixed block close to the fixed hook; the internal thread of the screw hole on the driven part matches the external thread of the screw.

[0009] Further, the limiting disc of the rotation central axis is coaxially arranged with the sleeve; the sleeve is of a hollow structure and through grooves are arranged on its side wall, the through grooves extend along the axis of the sleeve, nail grooves are arranged on the through grooves, and locking nails are arranged in the nail grooves.

[0010] Further, the outer diameter of the transmission end shaft and the inner diameter of the sleeve are in clearance fit; convex keys are arranged on the transmission end shaft, the convex keys are arranged in a circumferential array relative to the axis of the transmission end shaft, and the width of the convex keys corresponds to and is consistent with the position of the through groove.

[0011] Further, a first cover plate and a second cover plate are arranged on the fixed block; the first cover plate is in an I shape and is detachably connected to the side surface of the fixed block where the accommodation groove is located through screws; the second cover plate is in a cross shape and is detachably connected to the side surface of the fixed block where the sliding groove is located through screws.

[0012] The beneficial effects of the present invention are as follows: A quick-release clamping mechanism for an automobile inspection fixture, through the combined use of a fixed block, a sliding block, a rotation central axis, a control rope, and a transmission end shaft, can clamp and position the connection structure inside the sheet metal part in an environment with extremely limited space, realize the stable positioning and clamping of the sheet metal part on the inspection fixture, and at the same time can perform quick-release operation. By driving the rotation central axis to rotate through the control rope and the transmission end shaft, the sliding block is driven to slide, realizing the loosening of the connection structure inside the sheet metal part, facilitating the positioning, clamping, and unloading of the sheet metal part, significantly reducing the labor intensity of manpower, and at the same time shortening the time required for clamping and disassembling the sheet metal part, which is beneficial to improving production efficiency. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of a quick-release clamping mechanism for an automobile inspection fixture according to the present invention.

[0014] Figure 2 It is a schematic diagram of the overall structure of a quick-release clamping mechanism for an automobile inspection fixture from another perspective according to the present invention.

[0015] Figure 3 It is a schematic diagram of a partial structure of a quick-release clamping mechanism for an automobile inspection fixture according to the present invention.

[0016] Figure 4 It is Figure 3 A schematic diagram of the structure shown from another perspective.

[0017] Figure 5 It is a schematic diagram of the cooperation state of the sliding block, the rotation central axis, and the transmission end shaft of a quick-release clamping mechanism for an automobile inspection fixture according to the present invention.

[0018] Figure 6 It is a schematic diagram of the structure of the rotation central axis of a quick-release clamping mechanism for an automobile inspection fixture according to the present invention.

[0019] Figure 7 The present invention is a schematic structural diagram of a transmission end shaft and a control rope of a quick-release clamping mechanism for an automobile inspection fixture.

[0020] In the figure: 1. fixed block; 11. fixed hook; 12. slide groove; 13. accommodating groove; 14. limiting groove; 2. sliding block; 21. sliding hook; 22. guide part; 23. driven part; 3. rotating central axis; 31. screw; 32. limiting plate; 33. sleeve; 331. through groove; 332. nail groove; 34. locking nail; 4. first cover plate; 5. second cover plate; 6. control rope; 7. transmission end shaft; 71. convex key. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] refer to Figures 1 to 7 A quick-release clamping mechanism for automobile inspection fixtures includes a fixed block 1, a sliding block 2, a rotating central axis 3 and a control rope 6; the fixed block 1 is provided with a fixed hook 11; the sliding block 2 includes a sliding hook 21, a guide portion 22 and a driven portion 23, the sliding hook 21 corresponds to the position of the fixed hook 11, and the sliding hook 21 can move relative to the fixed hook 11, so as to achieve the clamping and loosening of the connection structure on the inner side of the sheet metal, the guide portion 22 is located in the slide groove 12 on the fixed block 1, and the slide groove 12 is used to guide the sliding of the guide portion 22, Thereby determining the moving trajectory of the sliding block 2; the rotating central axis 3 is located in the receiving groove 13 on the fixed block 1, the rotating central axis 3 comprises a screw 31 and a sleeve 33, the screw 31 and the sleeve 33 are coaxially connected, the screw 31 passes through the screw hole on the driven part 23, a limiting disk 32 is arranged on the sleeve 33, and the limiting disk 32 is located in the limiting groove 14 on the fixed block 1; the end of the control rope 6 is provided with a transmission end shaft 7, the transmission end shaft 7 is detachably connected to the sleeve 33 of the rotating central axis 3, and the end of the transmission end shaft 7 is inserted into the sleeve 33.

[0023] The slide groove 12 and the fixed hook 11 are both located on the same side of the fixed block 1; the accommodating groove 13 and the limiting groove 14 are both located on the other side of the fixed block 1, the slide groove 12 is parallel to the accommodating groove 13, and the limiting groove 14 is perpendicular to the accommodating groove 13; the width of the limiting groove 14 is consistent with the thickness of the limiting plate 32, and the limiting plate 32 is used to fix the relative position of the rotating central axis 3 and the fixed block 1, and the limiting groove 14 can prevent the rotating central axis 3 from axial movement.

[0024] The driven part 23 of the sliding block 2 is perpendicular to the guiding part 22, and the driven part 23 is specifically located on the side of the fixed block 1 close to the fixed hook 11; the internal thread of the screw hole on the driven part 23 is matched with the external thread of the screw 31, and when the screw 31 rotates, it can drive the linear movement of the driven part 23.

[0025] The limiting disc 32 of the rotating central axis 3 is coaxially arranged with the sleeve 33; the sleeve 33 has a hollow structure and a through groove 331 is arranged on its side wall, the through groove 331 extends along the axis of the sleeve 33, a nail groove 332 is arranged on the through groove 331, and a locking nail 34 is arranged in the nail groove 332. The locking nail 34 is used to block the nail groove 332, so as to prevent the convex key 71 of the transmission end shaft 7 from sliding out of the through groove 331.

[0026] The outer diameter of the transmission end shaft 7 and the inner diameter of the sleeve 33 are in clearance fit; the transmission end shaft 7 is provided with convex keys 71, the convex keys 71 are arranged in a circumferential array relative to the axis of the transmission end shaft 7, and the width of the convex keys 71 corresponds to the position of the through groove 331 and is the same, and the convex keys 71 are used to prevent the transmission end shaft 7 from sliding relative to the sleeve 33 and ensure the synchronization of the rotation angle.

[0027] The fixed block 1 is provided with a first cover plate 4 and a second cover plate 5; the first cover plate 4 is in an I shape and is detachably connected to the side surface of the fixed block 1 where the receiving groove 13 is located by screws; the second cover plate 5 is in a cross shape and is detachably connected to the side surface of the fixed block 1 where the sliding groove 12 is located by screws; both the first cover plate 4 and the second cover plate 5 are used for protection and are convenient for disassembly, and the clamping mechanism can be repaired.

[0028] The working principle of the present invention is as follows: the fixed block 1 of this clamping mechanism is installed on an automotive inspection fixture; during use, first, the sliding block 2 is in a high position, at this time, the distance between the sliding hook 21 and the fixed hook 11 is relatively large, so that the connecting structure of the sheet metal part product can enter between the sliding hook 21 and the fixed hook 11; after the sheet metal part is placed in place, the power mechanism on the automotive inspection fixture drives the control rope 6 to rotate, the control rope 6 drives the transmission end shaft 7 to rotate, under the structural action of the convex key 71 and the through groove 331, the rotating central axis 3 rotates synchronously with the transmission end shaft 7, and under the thread action of the screw 31 and the screw hole on the driven part 23 of the sliding block 2, the rotational movement of the screw 31 is converted into the linear sliding of the sliding block 2; the guiding part 22 slides along the sliding groove 12, and the sliding hook 21 moves towards the fixed hook 11 until it reaches the low position, so that the倒扣 structure on the sliding hook 21 cooperates with the fixed hook 11 to clamp the connecting structure of the sheet metal part, realizing the positioning and clamping of the sheet metal part on the automotive inspection fixture.

[0029] When the sheet metal part needs to be removed, the power mechanism on the automobile inspection fixture drives the control rope 6 to rotate in the opposite direction, and the control rope 6 drives the transmission end shaft 7 and the rotating middle shaft 3 to rotate together, and the sliding block 2 slides along the slide groove 12 to return to the high position, and the sliding hook 21 disengages the connection structure of the sheet metal part, so that the sheet metal part can be quickly removed to realize the quick release operation.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above embodiments are used to further illustrate the present invention, but the present invention is not limited to these specific embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be understood to be within the protection scope of the present invention.

Claims

1. A quick-release clamping mechanism for automobile inspection fixtures, characterized in that: The invention comprises a fixed block (1), a sliding block (2), a rotating central axis (3) and a control rope (6); the fixed block (1) is provided with a fixed hook (11); the sliding block (2) comprises a sliding hook (21), a guide portion (22) and a driven portion (23); the sliding hook (21) corresponds to the position of the fixed hook (11); the guide portion (22) is located in a sliding groove (12) on the fixed block (1); the rotating central axis (3) is located on the fixed block (1). The rotating central axis (3) comprises a screw (31) and a sleeve (33), the screw (31) and the sleeve (33) are coaxially connected, the screw (31) passes through a screw hole on the driven part (23), a limiting plate (32) is provided on the sleeve (33), and the limiting plate (32) is located in the limiting groove (14) on the fixed block (1); the end of the control rope (6) is provided with a transmission end shaft (7), and the transmission end shaft (7) is connected to the rotating central axis The sleeve (33) of the rotating shaft (3) is detachably connected; the limiting plate (32) of the rotating shaft (3) is coaxially arranged with the sleeve (33); the sleeve (33) is hollow in structure and a through groove (331) is arranged on its side wall, the through groove (331) extends along the axis of the sleeve (33), the through groove (331) is provided with a nail groove (332), and a locking nail (34) is arranged in the nail groove (332); the locking nail (34) is used to block the nail groove (332) to prevent the transmission from The convex key (71) of the end shaft (7) slides out of the through groove (331); the outer diameter of the transmission end shaft (7) and the inner diameter of the sleeve (33) are clearance-matched; the transmission end shaft (7) is provided with a convex key (71), the convex key (71) is arranged in a circular array relative to the axis of the transmission end shaft (7), and the width of the convex key (71) corresponds to the position of the through groove (331) and the width is consistent; the convex key (71) is used to prevent the transmission end shaft (7) and the sleeve (33) from sliding relative to each other.

2. The quick-release clamping mechanism for automobile inspection fixture according to claim 1, characterized in that: The slide groove (12) and the fixed hook (11) are both located on the same side of the fixed block (1); the receiving groove (13) and the limiting groove (14) are both located on the other side of the fixed block (1); the slide groove (12) is parallel to the receiving groove (13), and the limiting groove (14) is perpendicular to the receiving groove (13); the width of the limiting groove (14) is consistent with the thickness of the limiting plate (32).

3. The quick-release clamping mechanism for automobile inspection fixture according to claim 2, characterized in that: The driven portion (23) of the sliding block (2) is perpendicular to the guide portion (22), and the driven portion (23) is specifically located on a side of the fixed block (1) close to the fixed hook (11); the internal thread of the screw hole on the driven portion (23) matches the external thread of the screw (31).

4. The quick-release clamping mechanism for automobile inspection fixture according to claim 3, characterized in that: The fixing block (1) is provided with a first cover plate (4) and a second cover plate (5); the first cover plate (4) is in an I-shape and is detachably connected to a side of the fixing block (1) where the receiving groove (13) is located by means of screws; the second cover plate (5) is in a TU-shape and is detachably connected to a side of the fixing block (1) where the sliding groove (12) is located by means of screws.

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