Special clamp for installing and precisely positioning front grille support

Abstract

The utility model provides a clamp special for fine positioning of front grille support installation, and relates to the technical field of front grille support installation. The positioning device comprises a supporting frame and a positioning pin unit, the positioning pin unit comprises a positioning pin body and a first adjusting mechanism, the first adjusting mechanism is connected with the supporting frame, and the positioning pin body is connected with the first adjusting mechanism and sequentially connected with a positioning hole in a front grille support and a positioning hole in a vehicle body in an inserted mode. The first adjusting mechanism can adjust the relative position of the positioning pin body in the space, the design and machining precision of the clamp special for fine positioning of front grille support installation is higher, the positioning precision of part installation can be guaranteed, the accuracy of the front grille support installation position is guaranteed, the size precision floating range is narrowed, material waste is reduced, and the production efficiency is improved. And manpower is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of front grille bracket installation, in particular to a special clamp for precise positioning of the front grille bracket installation. Background Art

[0002] During the production and assembly process of the vehicle, the front grille bracket needs to be installed on the body to correspond to the installation of the left and right headlights and the front grille in the subsequent process. The installation accuracy of the bracket directly affects the step difference between the hood and the front of the vehicle. The assembly gap between the bracket and the left and right headlights and the front grille also directly affects the quality of the entire vehicle.

[0003] The quality criteria for body assembly are mainly focused on the gap and step difference between the body assembly parts and the body. In the production and assembly process of vehicles, the control of gap and step difference has always been a common difficulty. Under the basic requirement of stable part precision, assembly precision has become a key factor affecting the quality of the whole vehicle.

[0004] The applicant has found that the prior art has at least the following technical problems: the existing front grille bracket is mostly installed by manual positioning, and the difference between the hood and the front of the vehicle and the installation gap of the headlight are measured by feeler gauge after assembly. The assembly accuracy of this method fluctuates greatly, affecting the quality of the whole vehicle. If batch defects occur, the cost of rework increases, the cost of disassembly and assembly parts is high, the rework is difficult, more working hours are required, the demand for rework personnel is large and the requirements are high, and the use of human resources is unreasonable. Utility Model Content

[0005] The purpose of the utility model is to provide a special fixture for the precise positioning of the front grille bracket installation, so as to solve the technical problems in the prior art that the assembly accuracy of the front grille bracket installed by manual positioning fluctuates greatly, the cost of rework increases, the working hours increase, and the manpower is wasted. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A special fixture for precise positioning of a front grille bracket installation comprises a support frame and a positioning pin unit, wherein the positioning pin unit comprises a positioning pin body and a first adjustment mechanism, wherein the first adjustment mechanism is connected to the support frame, and the positioning pin body is connected to the first adjustment mechanism and is plugged into a positioning hole on the front grille bracket and a positioning hole on a vehicle body in sequence, wherein the first adjustment mechanism can adjust the relative position of the positioning pin body in space.

[0008] Preferably, the first adjustment mechanism includes a first mounting block, a first adjustment block, a first adjustment bolt, a first gasket and a first connecting bolt, the first mounting block is connected to the support frame, one end of the first adjustment block is detachably connected to the first mounting block via the first adjustment bolt and the other end of the first adjustment block is connected to the positioning pin body, the first gasket is detachably connected to the side wall of the first adjustment block via the first connecting bolt or is detachably connected between the first mounting block and the first adjustment block via the first adjusting bolt.

[0009] Preferably, a first adjusting hole is formed on the first adjusting block, and a diameter of the first adjusting hole is larger than an outer diameter of a rod of the first adjusting bolt and smaller than an outer diameter of a head of the first adjusting bolt.

[0010] Preferably, it further comprises a first limiting column, wherein the first limiting column is connected to the supporting frame, and the first limiting column can form a compression contact with the first gasket.

[0011] Preferably, it also includes a positioning block unit, which includes a positioning block body and a second adjusting mechanism, the second adjusting mechanism is connected to the supporting frame, the positioning block body is connected to the second adjusting mechanism and contacts the top surface of the front grille support, and the second adjusting mechanism can adjust the relative position of the positioning block body in space.

[0012] Preferably, the second adjustment mechanism includes a second mounting block, a second adjustment block, a second adjustment bolt, a second gasket and a second connecting bolt, the second mounting block is connected to the support frame, one end of the second adjustment block is detachably connected to the second mounting block via the second adjustment bolt and the other end thereof is connected to the positioning block body, and the second gasket is detachably connected to the side wall of the second adjustment block via the second connecting bolt or is detachably connected between the second mounting block and the second adjustment block via the second adjustment bolt.

[0013] Preferably, a second adjusting hole is formed on the second adjusting block, and a diameter of the second adjusting hole is larger than an outer diameter of a shank of the second adjusting bolt and smaller than an outer diameter of a head of the second adjusting bolt.

[0014] Preferably, it further comprises a second limiting column, wherein the second limiting column is connected to the supporting frame, and the second limiting column can form a compression contact with the second gasket.

[0015] Preferably, it further comprises a handle, wherein the handle is connected to the supporting frame.

[0016] The beneficial effects of the utility model are as follows: the design and processing accuracy of the special fixture for precise positioning of the front grille bracket installation is higher, which can ensure the positioning accuracy of the parts installation, ensure the accuracy of the installation position of the front grille bracket, narrow the floating range of dimensional accuracy, reduce material waste, improve production efficiency, and save manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a detailed structural diagram of the positioning pin unit of the utility model;

[0020] Figure 3 This is a detailed structural diagram of the positioning block unit of the utility model;

[0021] Figure 4 This is a detailed structural diagram of the first adjustment hole of the utility model;

[0022] In the figure, 1, support frame;

[0023] 2. locating pin unit; 21. locating pin body; 22. first mounting block; 23. first adjusting block; 231. first adjusting hole; 24. first adjusting bolt; 25. first limiting column; 26. first gasket; 27. first connecting bolt;

[0024] 3. Positioning block unit; 31. Positioning block body; 32. Second mounting block; 33. Second adjusting block; 34. Second adjusting bolt; 35. Second limiting column; 36. Second gasket. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or location relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] Reference Figures 1 to 4 , the utility model provides a special fixture for precise positioning of front grille bracket installation, comprising a support frame 1 and a positioning pin unit 2;

[0029] The supporting frame 1 is a frame structure with good structural strength;

[0030] The positioning pin unit 2 includes a positioning pin body 21 and a first adjustment mechanism. The first adjustment mechanism is connected to the support frame 1. The positioning pin body 21 is connected to the first adjustment mechanism. The positioning pin body 21 is plugged with the positioning hole on the front grille support and the positioning hole on the vehicle body in sequence. The first adjustment mechanism can adjust the relative position of the positioning pin body 21 in space.

[0031] There are several locating pin units 2 , and the number and relative positions can be selected according to the actual conditions of different vehicle models, and corresponding locating pin units 2 are arranged at different locating holes.

[0032] After the operator picks up the clamp, he can place the clamp steadily on the front grille bracket by matching the positioning pin units 2 with the positioning holes on the front grille bracket and the positioning holes on the vehicle body, ensuring that all the positioning pin units 2 are smoothly inserted into the corresponding positioning holes and installed in place, and then the front grille bracket can be fastened and installed. After the installation is completed, the front grille clamp is taken out and put back in place;

[0033] Here, the fastening and installation of the front grille bracket is completed by fastening the mounting holes on the main body and the mounting holes on the vehicle body with bolts, which is a relatively conventional prior art.

[0034] The first adjustment mechanism can adjust the relative position of the positioning pin body 21 in space, and has a higher design and processing accuracy, which can ensure the positioning accuracy of the parts installation, ensure the accuracy of the installation position of the front grille bracket, narrow the floating range of dimensional accuracy, reduce material waste, and improve production efficiency;

[0035] The special fixture for precise positioning of the front grille bracket can be installed in mass production, which can immediately meet the quality requirements and avoid large-scale rework of parts that do not meet the standards after installation;

[0036] The special fixture for precise positioning of the front grille bracket installation has the characteristics of good repeatability, can meet the requirements of long-term use without deformation or failure, and has the measurement and control capability to maintain stable quality;

[0037] The special fixture for precise positioning of the front grille bracket is suitable for different working environments and can be placed in a convenient position for operation;

[0038] The special fixture for precise positioning of the front grille bracket installation can save operation time, improve production efficiency, reduce labor costs, reduce the working time and work intensity of rework, reduce labor costs, and ensure assembly quality and accuracy, reducing material waste caused by rework.

[0039] As an optional embodiment, the first adjustment mechanism includes a first mounting block 22, a first adjustment block 23, a first adjustment bolt 24, a first gasket 26 and a first connecting bolt 27;

[0040] The first mounting block 22 is connected to the support frame 1, and the connection here can preferably be a fixed connection so that the connection between the two is firm;

[0041] One end of the first adjustment block 23 is detachably connected to the first mounting block 22 via a first adjustment bolt 24 and the other end thereof is connected to the positioning pin body 21 , and the first adjustment block 23 can move synchronously with the positioning pin body 21 ;

[0042] The first gasket 26 is detachably connected to the side wall of the first adjusting block 23 by the first connecting bolt 27 or is detachably connected between the first mounting block 22 and the first adjusting block 23 by the first adjusting bolt 24. By increasing or decreasing the number of the first gaskets 26 or changing the thickness, the position of the first adjusting block 23 in the three directions of X-axis, Y-axis and Z-axis can be adjusted.

[0043] The operation of the first adjustment mechanism is simpler. By adding or removing the first gasket 26, tiny dimensional changes can be amplified and controlled. It can be adjusted according to the precision requirements, and the positioning pin body 21 is used to precisely position the parts. It has the advantages of accurate positioning, quality assurance, reusability, convenience of use, and low cost, providing technical guarantee for the quality of the entire vehicle.

[0044] As an optional implementation, a first adjustment hole 231 is opened on the first adjustment block 23, and the hole diameter of the first adjustment hole 231 is larger than the outer diameter of the rod of the first adjustment bolt 24 and smaller than the outer diameter of the head of the first adjustment bolt 24. In this configuration, since the first adjustment bolt 24 always remains stationary relative to the first mounting block 22, the first adjustment block 23 can move relative to the first mounting block 22 after the first gasket 26 is adjusted, thereby realizing the position adjustment of the positioning pin body 21.

[0045] As an optional implementation, it also includes a first limiting column 25, which is connected to the support frame 1. The first limiting column 25 can form an extrusion contact with the first gasket 26. The first limiting column 25 can effectively improve the limiting effect, so that the first adjustment block 23 remains stable and avoids additional movement during use.

[0046] As an optional implementation, it also includes a positioning block unit 3, which includes a positioning block body 31 and a second adjustment mechanism. The second adjustment mechanism is connected to the support frame 1, and the positioning block body 31 is connected to the second adjustment mechanism and contacts the top surface of the front grille support. The positioning block body 31 can be tightly attached to the upper surface of the front grille support. After being placed in place, it can ensure that the clamp has no skew or shake, making the clamp placement more stable. The second adjustment mechanism can adjust the relative position of the positioning block body 31 in space.

[0047] As an optional embodiment, the second adjustment mechanism includes a second mounting block 32, a second adjustment block 33, a second adjustment bolt 34, a second gasket 36 and a second connecting bolt;

[0048] The second mounting block 32 is connected to the support frame 1, and the connection here can preferably be a fixed connection so that the connection between the two is firm;

[0049] One end of the second adjustment block 33 is detachably connected to the second mounting block 32 via a second adjustment bolt 34 and the other end thereof is connected to the positioning block body 31 , and the second adjustment block 33 can move synchronously with the positioning block body 31 ;

[0050] The second gasket 36 is detachably connected to the side wall of the second adjustment block 33 through the second connecting bolt or detachably connected between the second mounting block 32 and the second adjustment block 33 through the second adjusting bolt 34. By increasing or decreasing the number of the second gaskets 36 or changing the thickness, the position of the second adjustment block 33 in the three directions of the X-axis, the Y-axis and the Z-axis can be adjusted;

[0051] The second connecting bolt is not shown in the drawings, and its display effect is similar to that of the first connecting bolt.

[0052] The operation of the second adjustment mechanism is simpler. By adding or removing the second gasket 36, the tiny size change can be amplified and controlled. It can be adjusted according to the precision requirements. The positioning block body 31 is used to precisely position the parts. It has the advantages of accurate positioning, quality assurance, reusability, convenience of use, low cost, etc., providing technical guarantee for the quality of the whole vehicle.

[0053] As an optional implementation, a second adjustment hole is provided on the second adjustment block 33, and the diameter of the second adjustment hole is larger than the outer diameter of the rod of the second adjustment bolt 34 and smaller than the outer diameter of the head of the second adjustment bolt 34. In this configuration, since the second adjustment bolt 34 always remains stationary relative to the second mounting block 32, the second adjustment block 33 can move relative to the second mounting block 32 after the second gasket 36 is adjusted, thereby realizing the position adjustment of the positioning block body 31;

[0054] The second adjustment hole is not shown in the accompanying drawings, and its display effect is similar to that of the first adjustment hole.

[0055] As an optional implementation, it also includes a second limiting column 35, which is connected to the support frame 1. The second limiting column 35 can form an extrusion contact with the second gasket 36. The second limiting column 35 effectively improves the limiting effect, keeps the second adjustment block 33 stable, and avoids additional movement during use.

[0056] As an optional embodiment, it also includes a handle, which is connected to the support frame 1. The handle is easy for a person to hold. The number of handles is preferably two, and they are preferably symmetrically arranged to facilitate the operator to use both hands to work together to more stably pick up and place the clamp.

[0057] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A special fixture for precise positioning of front grille bracket installation, characterized in that: The invention comprises a support frame (1) and a positioning pin unit (2), wherein the positioning pin unit (2) comprises a positioning pin body (21) and a first adjustment mechanism, wherein the first adjustment mechanism is connected to the support frame (1), the positioning pin body (21) is connected to the first adjustment mechanism and is plugged into a positioning hole on a front grille support and a positioning hole on a vehicle body in sequence, and the first adjustment mechanism is capable of adjusting the relative position of the positioning pin body (21) in space; The first adjustment mechanism comprises a first mounting block (22), a first adjustment block (23), a first adjustment bolt (24), a first gasket (26) and a first connecting bolt (27); the first mounting block (22) is connected to the support frame (1); one end of the first adjustment block (23) is detachably connected to the first mounting block (22) via the first adjustment bolt (24) and the other end is connected to the positioning pin body (21); the first gasket (26) is detachably connected to the side wall of the first adjustment block (23) via the first connecting bolt (27) or is detachably connected between the first mounting block (22) and the first adjustment block (23) via the first adjustment bolt (24).

2. The special fixture for precise positioning of the front grille bracket installation according to claim 1, characterized in that: The first adjustment block (23) is provided with a first adjustment hole (231), the diameter of the first adjustment hole (231) being larger than the outer diameter of the stem of the first adjustment bolt (24) and smaller than the outer diameter of the head of the first adjustment bolt (24).

3. The special fixture for precise positioning of the front grille bracket according to claim 1, characterized in that: It also comprises a first limiting column (25), wherein the first limiting column (25) is connected to the supporting frame (1), and the first limiting column (25) can form a compression contact with the first gasket (26).

4. The special fixture for precise positioning of the front grille bracket according to claim 1, characterized in that: The invention also comprises a positioning block unit (3), wherein the positioning block unit (3) comprises a positioning block body (31) and a second adjustment mechanism, wherein the second adjustment mechanism is connected to the support frame (1), the positioning block body (31) is connected to the second adjustment mechanism and is in contact with the top surface of the front grille support, and the second adjustment mechanism is capable of adjusting the relative position of the positioning block body (31) in space.

5. The special fixture for precise positioning of the front grille bracket installation according to claim 4, characterized in that: The second adjustment mechanism comprises a second mounting block (32), a second adjustment block (33), a second adjustment bolt (34), a second gasket (36) and a second connecting bolt; the second mounting block (32) is connected to the support frame (1); one end of the second adjustment block (33) is detachably connected to the second mounting block (32) via the second adjustment bolt (34) and the other end is connected to the positioning block body (31); the second gasket (36) is detachably connected to the side wall of the second adjustment block (33) via the second connecting bolt or is detachably connected between the second mounting block (32) and the second adjustment block (33) via the second adjustment bolt (34).

6. The special fixture for precise positioning of the front grille bracket installation according to claim 5, characterized in that: The second adjustment block (33) is provided with a second adjustment hole, the diameter of which is larger than the outer diameter of the stem of the second adjustment bolt (34) and smaller than the outer diameter of the head of the second adjustment bolt (34).

7. The special fixture for precise positioning of the front grille bracket installation according to claim 5, characterized in that: It also comprises a second limiting column (35), wherein the second limiting column (35) is connected to the supporting frame (1), and the second limiting column (35) can form a compression contact with the second gasket (36).

8. The special fixture for precise positioning of the front grille bracket installation according to claim 1, characterized in that: It also comprises a handle, which is connected to the supporting frame (1).

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