Fixture positioning structure of automobile part checking fixture

Abstract

The utility model discloses a fixture positioning structure of an automobile part checking fixture, which is stable and reliable in clamping, does not damage an elastic buckle and can take down the elastic buckle, and comprises a tool frame, a clamping mechanism is arranged on the tool frame, the clamping mechanism comprises a base, two opposite clamping jaws are hinged on the base, and the two opposite clamping jaws are fixed on the tool frame. The two clamping jaws can conduct unfolding action or folding action, the two clamping jaws conduct folding action so that a clamping space can be formed between the clamping jaws, an elastic buckle of a part can enter the clamping space, and the inner wall face of the clamping space abuts against the surface of a buckle point of the elastic buckle so that the elastic buckle can be clamped; the base is further provided with a positioning space, and a fixing buckle of a part can enter the positioning space to form a matched state with the fixing buckle. The utility model relates to the technical field of automobile part production.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts production, and more specifically to a positioning structure of an automobile parts inspection fixture. Background Art

[0002] On the automobile interior parts, fixed buckles and elastic buckles are generally provided, and the elastic buckles are generally provided on the fixed buckles. The parts are fixed on the automobile mainly by the fixed buckle profile and the elastic buckle tension force, which are tightly connected with the parts (joint groove) provided on the automobile.

[0003] At present, in the production process of automobile interior parts, it is necessary to use a fixture to position the parts for maintenance and other operations. The fixture is generally provided with a coupling groove that is compatible with the fixed clip and the elastic clip. After the mutual combination, the parts can be fixed on the fixture.

[0004] Since the size of the coupling groove adapted to the elastic buckle cannot be changed, after coupling with the elastic buckle (clamping the elastic buckle), if the part needs to be removed, the part needs to be pulled vigorously. In the process of the elastic buckle being removed from the coupling groove, it is easy to be damaged due to the strong force;

[0005] Furthermore, if the buckle needs to be replaced or the part needs to be verified in the absence of an elastic buckle, and the connection of the part is only stable through the interaction between the fixed buckle and the coupling groove, additional tools are required to remove the elastic buckle and then connect the fixed buckle to the matching coupling groove before replacement or verification can be performed. The operation process is relatively cumbersome and the user experience is poor. Utility Model Content

[0006] In view of the shortcomings and defects of the prior art, a positioning structure for an automobile part inspection fixture is provided, which has stable and reliable clamping, does not cause damage to the elastic buckle, and can remove the elastic buckle.

[0007] An automobile parts inspection fixture positioning structure, comprising:

[0008] A tooling frame, wherein a clamping mechanism is arranged on the tooling frame, wherein the clamping mechanism comprises a base, wherein two opposing clamping jaws are hinged on the base, and the two clamping jaws can be extended or retracted, and the two clamping jaws are retracted to form a clamping space between the clamping jaws, wherein the elastic buckle of the part enters the clamping space, and the inner wall surface of the clamping space is pressed against the buckle point surface of the elastic buckle to clamp the elastic buckle;

[0009] The base is also provided with a positioning space, into which a fixing buckle of a part enters and forms a fit with the fixing buckle.

[0010] After adopting the above structure, the automobile parts inspection fixture positioning structure of the utility model has the following advantages compared with the prior art: when clamping, the two clamping claws are unfolded to open the clamping space, and the parts are aligned with the assembly position, that is, the elastic buckle of the parts is aligned and inserted into the clamping space, and the fixed buckle of the parts is aligned and inserted into the positioning space. At this time, the two clamping claws are retracted, and the inner wall surface of the clamping space is pressed against the buckle point surface of the elastic buckle to clamp the elastic buckle, and the positioning space is matched with the fixed buckle;

[0011] The above-mentioned clamping action and the fitting action are combined to position the parts, and the parts are firmly and reliably positioned, so that maintenance and other operations can be carried out. Of course, when the clamping space does not clamp the elastic buckle, the fitting action of the positioning space and the fixed buckle after fitting can also make the parts firmly and reliably positioned;

[0012] If it is necessary to remove a part, first unfold the two jaws. After the inner wall of the clamping space loses its tightening effect on the elastic buckle, the part can be easily removed. Compared with the traditional clamp with a snap-fit ​​groove structure (fixed clamping space) that is adapted to the elastic buckle, the clamping space of the present application has a variable size structure. When removing the part, the jaws unfold to increase the clamping space and then release the elastic buckle. The elastic buckle picks up the clamping effect of the jaws, and there is no need to use force to remove the part to cause damage to the elastic buckle.

[0013] Of course, if it is necessary to remove the elastic buckle from the fixed buckle, when removing the parts, keep the clamping claw in the position of clamping the elastic buckle. After moving the parts backward, the parts can be removed, but the elastic buckle is still clamped in the clamping space. The elastic buckle on the fixed buckle can be replaced, or further verification can be made as to whether the parts can be firmly and reliably connected through the connecting function of the fixed buckle when there is no elastic buckle.

[0014] As an improvement of the utility model, the tooling frame is further provided with a driving unit, the driving unit comprises a connecting piece which can move forward and backward, the connecting piece is connected to the clamping claw through a pull rope,

[0015] The connecting piece moves backward, tightens the drawstring, and drives the clamping jaws to expand relative to each other, thereby increasing the clamping space to release the elastic buckle;

[0016] A pre-tightening member is connected between the clamping jaws and the base, and when the clamping jaws are relatively expanded, the pre-tightening member applies a closing pre-tightening force to the clamping jaws;

[0017] The connecting piece moves forward, releasing the pull rope, and the pre-tightening piece drives the clamping jaws to move relatively together, so that the clamping space is reset.

[0018] As an improvement of the utility model, the tail end of the clamping jaw is hinged to the base, one end of the pull rope is connected to the middle position of the clamping jaw, and the other end of the pull rope is connected to the connecting piece.

[0019] As an improvement of the utility model, the driving unit further includes a base and a sliding rod, the sliding rod is passed through the base, the front end of the sliding rod is connected to the connecting piece, and the driving unit further includes a driving component for driving the sliding rod to move forward and backward.

[0020] As an improvement of the utility model, the driving assembly includes a guide sleeve and a handle, the guide sleeve is fixed on the base, and the front end of the slide rod passes through the inner hole of the guide sleeve;

[0021] The handle has a first hinge point and a second hinge point, the first hinge point and the second hinge point are arranged on the same straight line and are arranged at intervals, wherein the first hinge point is hinged to a connecting piece through a pin shaft, the other end of the connecting piece is hinged to the guide sleeve, and the second hinge point is hinged to the tail end of the slide rod through the pin shaft, and the handle is rotated until the second hinge point is horizontal with the first hinge point to drive the slide rod to move backward;

[0022] The handle is rotated until the second hinge point is vertical to the first hinge point to drive the slide bar to move forward.

[0023] As an improvement of the utility model, the two clamping jaws are respectively provided with inwardly extending extension portions at the front part of the clamping space, and the two extension portions form a constricted shape at the front part of the clamping space. The buckle point of the elastic clip passes through the space between the extension portions and enters into the clamping space, and the inner end of the extension portion serves as the inner wall surface of the clamping space and is tightly pressed against the buckle point surface of the elastic clip.

[0024] As an improvement of the utility model, an assembly hole is provided on the base at a position corresponding to the middle part of the two jaws, the preload member is a spring and is provided in the assembly hole, one end of the spring is fixed to the middle position of one of the jaws, and the other end is fixed to the middle position of the other jaw.

[0025] As an improvement of the utility model, the inner side walls of the base corresponding to the two clamping jaws are respectively provided with limiting parts, and when the clamping jaws are retracted, the inner side walls have a position that abuts against the limiting parts to limit the excessive retraction of the two clamping jaws. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model.

[0027] Figure 2 It is a schematic diagram of the local positions of parts and the clamping mechanism of the utility model.

[0028] Figure 3It is a schematic cross-sectional structure diagram of the clamping mechanism of the utility model when the clamping claws are unfolded and the elastic buckle enters the clamping space.

[0029] Figure 4 It is a schematic cross-sectional structural diagram of the clamping mechanism of the utility model when the clamping claws are closed and the elastic buckle is clamped.

[0030] Figure 5 It is a structural schematic diagram of the positioning space of the utility model positioning the fixed buckle, and the clamping space clamping the elastic buckle.

[0031] Figure 6 It is a schematic diagram of the driving unit and the clamping mechanism of the utility model.

[0032] Figure 7 It is a schematic diagram of the connection piece of the utility model being connected to the clamping claw via a drawstring.

[0033] As shown in the figure: 1. Tooling frame; 2. Base; 2.1. Positioning space; 2.2. Assembly hole; 2.3. Limiting part; 3. Clamping claw; 3.1. Clamping space; 3.2. Extension part; 4. Parts; 4.1. Elastic buckle; 4.2. Fixed buckle; 5. Driving unit; 5.1. Connecting part; 5.11. Pull rope; 5.2. Base; 5.3. Sliding rod; 5.4. Guide sleeve; 5.5. Handle; 5.51. First hinge point; 5.52. Second hinge point; 6. Preloaded part. DETAILED DESCRIPTION

[0034] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] See also Figure 1-7 As shown, an automobile parts inspection fixture positioning structure includes:

[0036] A fixture frame 1 is provided with a clamping mechanism, the clamping mechanism comprising a base 2, two opposing clamping jaws 3 are hinged on the base 2, the two clamping jaws 3 can be extended or retracted, the two clamping jaws 3 are retracted to form a clamping space 3.1 between the clamping jaws 3, the clamping space 3.1 is for an elastic buckle 4.1 of a part 4 to enter, the inner wall surface of the clamping space 3.1 is pressed against the buckle point surface of the elastic buckle 4.1 to clamp the elastic buckle 4.1;

[0037] The base 2 is also provided with a positioning space 2.1, into which the fixing buckle 4.2 of the part 4 enters and forms a fit with the fixing buckle 4.2.

[0038] When clamping, the two clamping jaws 3 are unfolded to open the clamping space 3.1, and the part 4 is aligned with the assembly position, that is, the elastic buckle 4.1 of the part 4 is aligned and inserted into the clamping space 3.1, and the fixed buckle 4.2 of the part 4 is aligned and inserted into the positioning space 2.1. At this time, the two clamping jaws 3 are retracted, and the inner wall surface of the clamping space 3.1 is pressed against the buckle point surface of the elastic buckle 4.1 to clamp the elastic buckle 4.1, and the positioning space 2.1 is matched with the fixed buckle 4.2;

[0039] The above-mentioned clamping action and the fitting action are combined to position the part 4, and the position of the part 4 is stable and reliable, and maintenance and other operations can be carried out. Of course, when the clamping space 3.1 does not clamp the elastic buckle 4.1, the fitting action of the positioning space 2.1 and the fixed buckle 4.2 after fitting can also make the position of the part 4 stable and reliable;

[0040] If it is necessary to remove part 4, first unfold the two jaws 3. After the inner wall surface of the clamping space 3.1 loses the pressing effect on the elastic buckle 4.1, the part 4 can be easily removed. Compared with the traditional clamp with a snap-fit ​​groove structure (the clamping space 3.1 is fixed) that adapts to the elastic buckle 4.1, the clamping space 3.1 of the present application has a variable-size structure. When removing part 4, the jaws 3 unfold to increase the clamping space 3.1 and then release the elastic buckle 4.1. The elastic buckle 4.1 picks up the clamping effect of the jaws 3, and there is no need to take out the part 4 with force to cause damage to the elastic buckle 4.1.

[0041] Of course, if it is necessary to remove the elastic buckle 4.1 from the fixed buckle 4.2, when removing the part 4, the position of the clamping claw 3 is maintained in the position of clamping the elastic buckle 4.1. After moving the part 4 backward, the part 4 can be removed, but the elastic buckle 4.1 is still clamped in the clamping space 3.1. The elastic buckle 4.1 on the fixed buckle 4.2 can be replaced, or it can be further verified whether the part 4 can achieve a stable and reliable connection through the connecting function of the fixed buckle 4.2 when there is no elastic buckle 4.1.

[0042] See also Figure 1-7 As shown, the tooling frame 1 is also provided with a driving unit 5, which includes a connecting member 5.1 that can move forward and backward, and the connecting member 5.1 is connected to the clamping jaw 3 through a pull rope 5.11.

[0043] The connecting member 5.1 moves backwards, tightens the drawstring 5.11, and drives the clamping jaws 3 to expand relative to each other, thereby increasing the clamping space 3.1 to release the elastic buckle 4.1;

[0044] A pre-tightening member 6 is connected between the clamping jaw 3 and the base 2. When the clamping jaw 3 is relatively expanded, the pre-tightening member 6 applies a closing pre-tightening force to the clamping jaw 3.

[0045] The connecting member 5.1 moves forward, the pull rope 5.11 is released, and the pre-tightening member 6 drives the clamping jaws 3 to relatively close, so that the clamping space 3.1 is reset. After the above improvement, the pull rope 5.11 is released, and under the action of the pre-tightening member 6, the two clamping jaws 3 close to reset the clamping space 3.1. When the connecting member 5.1 does not move backward, the pre-tightening member 6 drives the clamping jaws 3 to always be in a state of clamping the elastic buckle 4.1, which has the characteristics of stable and reliable operation.

[0046] The pull rope 5.11 in this application can refer to the brake line structure. The pull rope 5.11 is a steel wire rope, which is inserted into the wire tube. One end of the pull rope 5.11 is connected to the indirect component, and the other end of the pull rope 5.11 is connected to the clamp 3. The specific structure can also refer to a pull rope mechanism disclosed in announcement CN108679054A.

[0047] See also Figure 1-7 As shown, the tail end of the clamping jaw 3 is hinged to the base 2, one end of the pull rope 5.11 is connected to the middle position of the clamping jaw 3, and the other end of the pull rope 5.11 is connected to the connecting piece 5.1. After the above improvements, the structural layout is reasonable and the operation is stable and reliable.

[0048] As an improvement of the utility model, the driving unit 5 further comprises a base 5.2 and a slide bar 5.3, wherein the slide bar 5.3 is passed through the base 5.2, and the front end of the slide bar 5.3 is connected to the connecting member 5.1, and the driving unit 5 further comprises a driving assembly for driving the slide bar 5.3 to move forward and backward. After the above improvement, the slide bar 5.3 is driven forward and backward by the driving assembly to drive the connecting member 5.1 to move forward and backward, which has the characteristics of convenient operation, stable and reliable operation.

[0049] As an improvement of the utility model, the driving assembly includes a guide sleeve 5.4 and a handle 5.5, wherein the guide sleeve 5.4 is fixed on the base 5.2, and the front end of the slide rod 5.3 passes through the inner hole of the guide sleeve 5.4;

[0050] The handle 5.5 has a first hinge point 5.51 and a second hinge point 5.52. The first hinge point 5.51 and the second hinge point 5.52 are arranged on the same straight line and are arranged at intervals. The first hinge point 5.51 is hinged to the connecting member 5.1 through a pin shaft. The other end of the connecting member 5.1 is hinged to the guide sleeve 5.4. The second hinge point 5.52 is hinged to the tail end of the slide bar 5.3 through the pin shaft. The handle 5.5 is rotated until the second hinge point 5.52 is horizontal with the first hinge point 5.51 to drive the slide bar 5.3 to move backward.

[0051] The handle 5.5 is rotated until the second hinge point 5.52 is vertical to the first hinge point 5.51, so as to drive the slide bar 5.3 to move forward. After the above improvement, the user rotates the handle 5.5 to drive the slide bar 5.3 to move forward and backward. The manual operation structure is easy to operate. In addition, the handle 5.5 can be stably in the position after the rotation is completed, and has the characteristics of stable and reliable operation.

[0052] As an improvement of the present invention, the two clamping jaws 3 are respectively provided with inwardly extending extension portions 3.2 at the front portion of the clamping space 3.1, and the two extension portions 3.2 form a constricted shape at the front portion of the clamping space 3.1. The buckle point of the elastic clip 4.1 passes through the space between the extension portions 3.2 and enters into the clamping space 3.1, and the inner end of the extension portion 3.2 serves as the inner wall surface of the clamping space 3.1 and is tightly pressed against the buckle point surface of the elastic clip 4.1. After the above improvements, the front end of the clamping space 3.1 is formed into a constricted shape by the inwardly extending extension portion 3.2. After the buckle point of the elastic clip 4.1 passes through the constricted shape (extension portion 3.2) and enters the clamping space 3.1, if the clamping jaws 3 do not unfold, further, if it is necessary to remove the elastic clip 4.1, move the part 4 backward, and the constricted shape (extension portion 3.2) will abut against the front end of the buckle point of the elastic clip, which will limit the elastic clip 4.1, so that the elastic clip 4.1 can be removed more easily without causing damage.

[0053] As an improvement of the utility model, an assembly hole 2.2 is provided on the base 2 at a position corresponding to the middle of the two clamping jaws 3, and the preload member 6 is a spring and is provided in the assembly hole 2.2, and one end of the spring is fixed to the middle position of one of the clamping jaws 3, and the other end is fixed to the middle position of the other clamping jaw 3. After the above improvement, the end of the spring can be fixed to the clamping jaw 3 by welding, slot clamping or connection with a threaded connector 5.1;

[0054] In terms of assembly structure, it has the characteristics of small space occupation and high degree of compactness.

[0055] As an improvement of the present invention, the inner side walls of the base 2 corresponding to the two clamping jaws 3 are respectively provided with limiting parts 2.3, and when the clamping jaws 3 are retracted, the inner side walls have a position that abuts against the limiting parts 2.3 to limit the excessive retraction of the two clamping jaws 3. After the above improvement, the elastic buckle 4.1 is prevented from being damaged by the excessive retraction of the two clamping jaws 3, and the operation is reliable.

[0056] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. An automobile parts inspection fixture positioning structure, characterized in that: include: A tooling frame (1), wherein a clamping mechanism is arranged on the tooling frame (1), wherein the clamping mechanism comprises a base (2), wherein two opposing clamping jaws (3) are hingedly connected to the base (2), wherein the two clamping jaws (3) can be extended or retracted, and the two clamping jaws (3) are retracted to form a clamping space (3.1) between the clamping jaws (3), wherein the clamping space (3.1) is for an elastic buckle (4.1) of a part (4) to enter, and an inner wall surface of the clamping space (3.1) is pressed against a buckle point surface of the elastic buckle (4.1) to clamp the elastic buckle (4.1); The base (2) is also provided with a positioning space (2.1), wherein the fixing buckle (4.2) of the part (4) enters the positioning space (2.1) to form a fitting state with the fixing buckle (4.2).

2. The automobile parts inspection fixture positioning structure according to claim 1, characterized in that: The tooling frame (1) is also provided with a driving unit (5), the driving unit (5) comprising a connecting piece (5.1) that can move forward and backward, the connecting piece (5.1) being connected to the clamping claw (3) via a pull rope (5.11). The connecting member (5.1) moves backwards, tightens the drawstring (5.11), and drives the clamping jaws (3) to expand relative to each other, thereby increasing the clamping space (3.1) to release the elastic buckle (4.1); A pre-tightening member (6) is connected between the clamping jaw (3) and the base (2), and when the clamping jaw (3) is relatively expanded, the pre-tightening member (6) applies a closing pre-tightening force to the clamping jaw (3); The connecting member (5.1) moves forward, releasing the pull rope (5.11), and the pre-tightening member (6) drives the clamping jaws (3) to move relatively together, thereby resetting the clamping space (3.1).

3. The automobile parts inspection fixture positioning structure according to claim 2, characterized in that: The tail end of the clamping jaw (3) is hinged to the base (2), one end of the pull rope (5.11) is connected to the middle position of the clamping jaw (3), and the other end of the pull rope (5.11) is connected to the connecting piece (5.1).

4. The automobile parts inspection fixture positioning structure according to claim 2, characterized in that: The driving unit (5) further comprises a base (5.2) and a sliding rod (5.3). The sliding rod (5.3) is inserted into the base (5.2). The front end of the sliding rod (5.3) is connected to the connecting piece (5.1). The driving unit (5) further comprises a driving component for driving the sliding rod (5.3) to move forward and backward.

5. The automobile parts inspection fixture positioning structure according to claim 4, characterized in that: The driving assembly comprises a guide sleeve (5.4) and a handle (5.5); the guide sleeve (5.4) is fixed on the base (5.2); and the front end of the slide rod (5.3) passes through the inner hole of the guide sleeve (5.4); The handle (5.5) has a first hinge point (5.51) and a second hinge point (5.52), wherein the first hinge point (5.51) and the second hinge point (5.52) are arranged on the same straight line and are arranged at intervals, wherein the first hinge point (5.51) is hinged to a connecting member (5.1) via a pin shaft, the other end of the connecting member (5.1) is hinged to a guide sleeve (5.4), and the second hinge point (5.52) is hinged to the tail end of the slide rod (5.3) via a pin shaft, and the handle (5.5) is rotated until the second hinge point (5.52) is level with the first hinge point (5.51) to drive the slide rod (5.3) to move backward; The handle (5.5) is rotated until the second hinge point (5.52) is vertical to the first hinge point (5.51), so as to drive the slide rod (5.3) to move forward.

6. The automobile parts inspection fixture positioning structure according to claim 1, characterized in that: The two clamping jaws (3) are respectively provided with inwardly extending extension parts (3.2) at the front of the clamping space (3.1); the two extension parts (3.2) form a constricted shape at the front of the clamping space (3.1); the buckle point of the elastic buckle (4.1) passes through the space between the extension parts (3.2) and enters into the clamping space (3.1); and the inner end of the extension part (3.2) serves as the inner wall surface of the clamping space (3.1) and is tightly pressed against the buckle point surface of the elastic buckle (4.1).

7. The automobile parts inspection fixture positioning structure according to claim 2, characterized in that: An assembly hole (2.2) is provided on the base (2) at a position corresponding to the middle of the two clamping jaws (3); the preload member (6) is a spring and is arranged in the assembly hole (2.2); one end of the spring is fixed to the middle position of one of the clamping jaws (3), and the other end is fixed to the middle position of the other clamping jaw (3).

8. The automobile parts inspection fixture positioning structure according to claim 1, characterized in that: The inner side walls of the base (2) corresponding to the two clamping jaws (3) are respectively provided with limiting portions (2.3); when the clamping jaws (3) are retracted, the inner side walls have a position that abuts against the limiting portions (2.3) to limit the excessive retraction of the two clamping jaws (3).

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