CN219617228U - Machining clamp for automobile rear seat support - Google Patents

Abstract

The utility model relates to the technical field of machining clamps, in particular to a machining clamp for an automobile rear seat bracket, which comprises a bottom plate and a clamping assembly arranged on the bottom plate, wherein the clamping assembly comprises a first positioning piece, a second positioning piece, a third positioning piece and a fourth positioning piece, wherein the first positioning piece is arranged on the bottom plate along the left edge part of the bracket at intervals, the second positioning piece is arranged opposite to the first positioning piece, the third positioning piece and the fourth positioning piece are arranged adjacent to the first positioning piece, the first positioning piece is used for clamping the left edge part of the bracket, the second positioning piece is used for clamping the right edge part of the bracket, the third positioning piece is used for clamping the front end part of the bracket, and the fourth positioning piece is used for clamping the rear end part of the bracket.

Description

Machining clamp for automobile rear seat support

Technical Field

The utility model relates to the technical field of machining clamps, in particular to a machining clamp for an automobile rear seat support.

Background

The machining fixture is used for fixing a workpiece to be machined in the numerical control machining process, is one of the most important process equipment, and is a key component for guaranteeing machining quality and improving production efficiency. Referring to fig. 5, a schematic structural diagram of a workpiece to be processed is shown, the workpiece is an automobile rear seat support, which is a strip-shaped sheet metal part, and during processing, the support is positioned and clamped by a machining clamp, and then is drilled, cut, ground, polished and the like by a numerical control system.

With respect to the related art in the above, the inventors consider that there are the following technical drawbacks: the existing machining fixture for the automobile rear seat support ignores the special-shaped characteristic of the support, is not designed according to the structural characteristics of the support, is poor in clamping stability, and is easy to shake when being processed by a numerical control system, so that the machining quality is not guaranteed, and the yield is low. In this regard, there is a need for further improvement.

Disclosure of Invention

In order to improve the working reliability of the existing machining clamp and ensure the machining quality, the utility model provides the machining clamp for the rear seat bracket of the automobile.

The utility model provides a machining clamp for an automobile rear seat bracket, which adopts the following technical scheme:

the clamping assembly comprises a first positioning piece, a second positioning piece, a third positioning piece and a fourth positioning piece, wherein the first positioning piece is arranged on the bottom plate along the left edge of the support at intervals, the second positioning piece is arranged opposite to the first positioning piece, the third positioning piece and the fourth positioning piece are arranged adjacent to the first positioning piece, the first positioning piece is used for clamping the left edge of the support, the second positioning piece is used for clamping the right edge of the support, the third positioning piece is used for clamping the front end of the support, and the fourth positioning piece is used for clamping the rear end of the support.

Through adopting above-mentioned technical scheme, according to support self dysmorphism characteristic, set up first setting element, second setting element, third setting element and fourth setting element respectively on the bottom plate, press from both sides tight location to the left edge portion of support, right edge portion, preceding tip and rear end portion respectively, guaranteed the centre gripping stability, can effectively prevent that the support from taking place to rock in the course of working and leading to influencing processingquality's condition to take place, still make the omnidirectional atress of support even simultaneously, can prevent that the support from taking place to warp because the atress is uneven in the clamping process, further be favorable to guaranteeing the operational reliability of machine with anchor clamps, guarantee processingquality.

Optionally, the bottom plate top is provided with first spacing platform and second spacing platform, first spacing platform with the second spacing platform sets up relatively the both sides at bottom plate top, first spacing platform is corresponding to the front end of support, is used for right the support the front end carries out spacingly, the second spacing platform is corresponding to the rear end of support, is used for right the rear end of support carries out spacingly.

By adopting the technical scheme, when the bracket is placed on the machining clamp, the front end part of the bracket is positioned on one side of the first limiting table, and the rear end part of the bracket is positioned on one side of the second limiting table, so that the bracket is initially positioned under the combined action of the first limiting table and the second limiting table, the bracket can be prevented from falling from the bottom plate, and the bracket is also clamped in place quickly.

Optionally, the first setting element includes locating clip one, locating clip two and locating clip three, the bottom plate top be close to the position of first spacing platform be provided with locating clip one cooperate with the support carries out the first locating reference that supports tightly perpendicularly, the bottom plate top be close to the position of second spacing platform be provided with locating clip two cooperate with the support carries out the second locating reference that supports tightly perpendicularly, the bottom plate top still is provided with the bed hedgehopping seat, the bed hedgehopping seat is located first locating reference with between the second locating reference, the locating clip three sets up bed hedgehopping seat top with bed hedgehopping seat cooperation is right support carries out the perpendicular tight of supporting.

By adopting the technical scheme, through setting up first location benchmark, second location benchmark and bed hedgehopping seat, press from both sides first, second and third under the combined action of locating clamp to the left edge portion of support tightly, when having guaranteed the centre gripping stability, make the left edge portion of support keep the atress even, can prevent effectively that the support from taking place because the uneven condition of deformation takes place in the course of working because of the atress, be favorable to guaranteeing the operational reliability of machine and add anchor clamps.

Optionally, the second setting element includes fourth and fifth locating clip, the bottom plate top is close to the position of second spacing platform is provided with the support column, fourth locating clip installs on the support column, fourth locating clip with the support column cooperation is right the support carries out the level and supports tightly, fifth locating clip installs the support column with between the first spacing platform, fifth locating clip is used for right the support carries out the level and presss from both sides tightly.

Optionally, the third locating part includes first flexible cylinder and first tight piece that supports, first flexible cylinder sets up the bottom plate top is close to the position of first spacing platform, the output level orientation of first flexible cylinder first spacing platform, first tight piece that supports is fixed the output of first flexible cylinder, first spacing platform is close to one side of first flexible cylinder be provided with first the corresponding second of tight piece is protruding to support.

Optionally, the fourth setting element includes revolving cylinder and latch segment, revolving cylinder installs on the second spacing bench, revolving cylinder's output shaft level is towards the support, the latch segment is fixed revolving cylinder's output shaft, be provided with on the second spacing bench with the corresponding third arch of latch segment.

Optionally, a side pushing piece is arranged between the positioning clamp five and the first limiting platform, the side pushing piece comprises a second telescopic cylinder which is obliquely arranged and a second abutting block which is fixed at the output end of the second telescopic cylinder, and a first bulge corresponding to the second abutting block is arranged on one side, close to the second telescopic cylinder, of the first limiting platform.

Optionally, the first spacing post and the second spacing post that are used for carrying out spacing to the support are set up on the bottom plate.

Optionally, a plurality of groups of chip blowing components are arranged on the bottom plate, and the plurality of groups of chip blowing components respectively correspond to the first positioning reference and the second positioning reference.

Optionally, the chip blowing assembly includes a mounting seat and a nozzle, the mounting seat is arranged at a corresponding position on the bottom plate, the nozzle is arranged at the top of the mounting seat, and an air outlet of the nozzle faces to the first positioning reference or the second positioning reference.

From the above, the utility model has the beneficial technical effects that: through adopting above-mentioned technical scheme, according to support self dysmorphism characteristic, set up first setting element, second setting element, third setting element and fourth setting element respectively on the bottom plate, press from both sides tight location to the left edge portion of support, right edge portion, preceding tip and rear end portion respectively, guaranteed the centre gripping stability, can effectively prevent that the support from taking place to rock in the course of working and leading to influencing processingquality's condition to take place, still make the omnidirectional atress of support even simultaneously, can prevent that the support from taking place to warp because the atress is uneven in the clamping process, further be favorable to guaranteeing the operational reliability of machine with anchor clamps, guarantee processingquality.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

FIG. 1 is a schematic view of a bracket clamped to a machine tool clamp in an embodiment of the utility model.

Fig. 2 is a schematic structural view of the machine jig after the bracket is removed from the machine jig in fig. 1.

Fig. 3 is a schematic view of another view of a bracket clamped to a machined fixture in an embodiment of the present utility model.

Fig. 4 is a schematic structural view of the machine jig after the bracket is removed from the machine jig in fig. 3.

Fig. 5 is a schematic structural view of a bracket in an embodiment of the present utility model.

Reference numerals illustrate: 100. a bottom plate; 101. a first positioning reference; 102. a second positioning reference; 110. a heightening seat; 120. a support column; 130. a first limit table; 131. a first protrusion; 132. a second protrusion; 140. the second limiting table; 141. a third protrusion; 150. a first limit post; 160. the second limit column; 200. a first positioning member; 210. positioning a first clamp; 220. a second positioning clamp; 230. a positioning clamp III; 300. a second positioning member; 310. a positioning clamp IV; 320. a positioning clamp V; 330. a side pushing member; 400. a third positioning member; 500. a fourth positioning member; 600. a chip blowing component; 610. a mounting base; 620. a nozzle; 700. a bracket; 710. a left edge portion; 720. a right edge portion; 730. a front end portion; 740. a rear end portion.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 5, in an embodiment of the present utility model, the support 700 is a strip-shaped sheet metal part, and during processing, the support 700 is first positioned and clamped by a machining fixture, and then the support 700 is subjected to processing technologies such as drilling, cutting, polishing, and the like by a numerical control system. However, the existing machining fixture for the rear seat support of the automobile ignores the special-shaped characteristic of the support 700, is not designed according to the structural characteristics of the support 700, is poor in clamping stability, and is not beneficial to guaranteeing the machining quality due to the fact that the support 700 is easy to shake when the numerical control system processes the support 700, and is low in yield. In view of this, in order to improve the above-mentioned existing technical drawbacks, the technical solution of the present utility model is proposed.

Specifically, referring to fig. 1 to 4, the claimed technical solution is a machining fixture for a rear seat bracket of an automobile, the machining fixture comprises a bottom plate 100 and a clamping assembly arranged on the bottom plate 100, wherein the clamping assembly comprises a first positioning member 200 arranged on the bottom plate 100 at intervals along a left edge portion 710 of the bracket 700, a second positioning member 300 arranged opposite to the first positioning member 200, and a third positioning member 400 and a fourth positioning member 500 arranged adjacent to the first positioning member 200, the first positioning member 200 is used for clamping the left edge portion 710 of the bracket 700, the second positioning member 300 is used for clamping the right edge portion 720 of the bracket 700, the third positioning member 400 is used for clamping the front end portion 730 of the bracket 700, and the fourth positioning member 500 is used for clamping the rear end portion 740 of the bracket 700.

By adopting the above technical scheme, according to the special-shaped characteristics of the bracket 700, the first positioning piece 200, the second positioning piece 300, the third positioning piece 400 and the fourth positioning piece 500 are respectively arranged on the bottom plate 100, and the left edge 710, the right edge 720, the front end 730 and the rear end 740 of the bracket 700 are respectively clamped and positioned, so that the clamping stability is ensured, the condition that the bracket 700 is rocked in the processing process to influence the processing quality is effectively prevented, the omnibearing stress of the bracket 700 is uniform, the bracket 700 is prevented from deforming due to uneven stress in the clamping process, the working reliability of the machining clamp is further facilitated, and the processing quality is ensured.

Referring to fig. 1 to 4, in some embodiments, the base plate 100 is a substantially rectangular flat plate, the top of the base plate 100 is provided with a first limiting platform 130 and a second limiting platform 140, and the first limiting platform 130 and the second limiting platform 140 are oppositely disposed on two sides of the top of the base plate 100, wherein the first limiting platform 130 corresponds to a front end 730 of the bracket 700 and is used for limiting the front end 730 of the bracket 700, and the second limiting platform 140 corresponds to a rear end 740 of the bracket 700 and is used for limiting the rear end 740 of the bracket 700.

Further, in some embodiments, the first positioning member 200 includes a first positioning clamp 210, a second positioning clamp 220, and a third positioning clamp 230, a first positioning reference 101 that is matched with the first positioning clamp 210 to vertically support the bracket 700 is disposed at a position of the top of the bottom plate 100 near the first positioning table 130, a second positioning reference 102 that is matched with the second positioning clamp 220 to vertically support the bracket 700 is disposed at a position of the top of the bottom plate 100 near the second positioning table 140, a raising seat 110 is further disposed at the top of the bottom plate 100, the raising seat 110 is located between the first positioning reference 101 and the second positioning reference 102, and the third positioning clamp 230 is disposed at the top of the raising seat 110 to vertically support the bracket 700 in cooperation with the raising seat 110. Thus, the left edge portion 710 of the bracket 700 is clamped by the combination of the first, second and third clamps 210, 220 and 230.

Specifically, in some embodiments, two positioning clips two 220 are provided, two corresponding second positioning references 102 are provided, two positioning clips two 220 are disposed at intervals along the border of the corresponding position of the bracket 700, and two second positioning references 102 are in one-to-one correspondence with two positioning clips two 220.

Specifically, in some embodiments, three positioning clips three 230 are provided, three corresponding raising seats 110 are provided, three positioning clips three 230 are disposed at intervals along the border of the corresponding position of the bracket 700, and three raising seats 110 are in one-to-one correspondence with three positioning clips three 230.

It should be noted that, the first positioning clamp 210, the second positioning clamp 220, and the third positioning clamp 230 may be quick clamps commonly used in the art or other clamping members capable of achieving the same clamping effect, and the specific implementation forms of the first positioning clamp 210, the second positioning clamp 220, and the third positioning clamp 230 are not limited herein.

Further, in some embodiments, the second positioning member 300 includes a fourth positioning clip 310 and a fifth positioning clip 320, the support column 120 is further disposed on the top of the bottom plate 100 near the second limiting platform 140, the fourth positioning clip 310 is mounted on the support column 120, the fourth positioning clip 310 cooperates with the support column 120 to horizontally abut against the support 700, and the fourth positioning clip 310 may be a quick clip or other clamping member capable of achieving the same clamping effect as commonly used in the art, which is not limited in the specific implementation form of the fourth positioning clip 310.

In view of the above, the positioning clamp five 320 is installed between the support column 120 and the first limiting platform 130, the positioning clamp five 320 is used for horizontally clamping the bracket 700, and specifically, the positioning clamp five 320 in the embodiment of the utility model may use pneumatic clamping fingers, and the positioning clamp five 320 is clamped at the right edge 720 of the bracket 700.

Further, referring to fig. 1 and 2, in some embodiments, the third positioning member 400 includes a first telescopic cylinder and a first abutting block, the first telescopic cylinder is disposed at a position near the first limiting platform 130 at the top of the bottom plate 100, the output end of the first telescopic cylinder faces horizontally to the first limiting platform 130, the first abutting block is fixed at the output end of the first telescopic cylinder, a second protrusion 132 corresponding to the first abutting block is disposed on one side of the first limiting platform 130 near the first telescopic cylinder, referring to fig. 1 and 3, when clamping, the first abutting block abuts against the outer side of the front end 730 of the bracket 700 near the first telescopic cylinder, and the second protrusion 132 abuts against the front end 730 of the bracket 700 at a position opposite to the first abutting block.

Further, referring to fig. 3 and 4, in some embodiments, the fourth positioning member 500 includes a rotary cylinder and a locking block, the rotary cylinder is mounted on the second limiting platform 140, an output shaft of the rotary cylinder faces the bracket 700 horizontally, the locking block is fixed on an output shaft of the rotary cylinder, a third protrusion 141 corresponding to the locking block is further provided on the second limiting platform 140, the locking block rotates and abuts against an outer side of the rear end 740 of the bracket 700 when clamped, and the third protrusion 141 abuts against a position corresponding to the locking block outside the bracket 700.

In order to further improve the installation stability of the bracket 700 on the machining fixture, particularly prevent the right edge 720 of the bracket 700 from deforming during the machining process, a side pushing member 330 is further disposed between the positioning clamp five 320 and the first limiting platform 130, specifically, referring to fig. 2 and fig. 4, the side pushing member 330 includes a second telescopic cylinder disposed obliquely and a second abutting block fixed at the output end of the second telescopic cylinder, a first protrusion 131 corresponding to the second abutting block is disposed on one side of the first limiting platform 130 near the second telescopic cylinder, and during clamping, the side pushing member 330 is located at the inner side of the right edge 720 of the bracket 700, the second abutting block abuts against a predetermined position on the inner side of the bracket 700, and the first protrusion 131 abuts against a position corresponding to the second abutting block on the outer side of the bracket 700. Therefore, under the combined action of the second abutting block and the first protrusion 131, the right edge 720 of the bracket 700 is propped open and abutted, which is beneficial to preventing the right edge 720 of the bracket 700 from deforming during the processing.

Further, referring to fig. 3, in some embodiments, in order to facilitate quick placement of the bracket 700 at a predetermined position on the base plate 100, first and second limiting posts 150 and 160 may be disposed at corresponding positions on the base plate 100, specifically, the first limiting posts 150 may be disposed as elongated posts having a circular cross section, the first limiting posts 150 may be disposed in two, two first limiting posts 150 may be disposed at opposite sides of the bracket 700 along the width direction of the base plate 100 for limiting the position of the bracket 700 near the rear end 740, the second limiting posts 160 may be disposed as L-shaped bars, and two second limiting posts 160 may be disposed at intervals along the length direction of the base plate 100. Accordingly, referring to fig. 1 and 3, a limit space corresponding to the contour of the bracket 700 is primarily formed under the cooperation of the first limit post 150 and the second limit post 160, so that the bracket 700 can be conveniently and rapidly placed at a predetermined position on the base plate 100.

Further, referring to fig. 2 and 4, in some embodiments, in order to avoid that scraps generated by machining remain on the machining fixture to affect the subsequent clamping precision, a scrap blowing assembly 600 may be further disposed on the base plate 100. Specifically, since the most scraps remain in the positions where the first positioning reference 101 corresponds to the second positioning reference 102 in general, a plurality of sets of the scrap blowing assemblies 600 may be provided, and the plurality of sets of the scrap blowing assemblies 600 correspond to the first positioning reference 101 and the second positioning reference 102, respectively. More specifically, in some embodiments, the chip blowing assembly 600 includes a mounting base 610 and a nozzle 620, the mounting base 610 is disposed at a corresponding position on the base plate 100, the nozzle 620 is disposed at the top of the mounting base 610, and an air outlet of the nozzle 620 is directed toward the first positioning reference 101 or the second positioning reference 102.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (10)

1. The clamping assembly is characterized by comprising a first locating piece, a second locating piece, a third locating piece and a fourth locating piece, wherein the first locating piece is arranged on the bottom plate along the left edge of the support, the second locating piece is arranged opposite to the first locating piece, the third locating piece and the fourth locating piece are arranged adjacent to the first locating piece, the first locating piece is used for clamping the left edge of the support, the second locating piece is used for clamping the right edge of the support, the third locating piece is used for clamping the front end of the support, and the fourth locating piece is used for clamping the rear end of the support.

2. The machining fixture for the automobile rear seat support according to claim 1, wherein a first limiting table and a second limiting table are arranged on the top of the bottom plate, the first limiting table and the second limiting table are oppositely arranged on two sides of the top of the bottom plate, the first limiting table corresponds to the front end portion of the support and is used for limiting the front end portion of the support, and the second limiting table corresponds to the rear end portion of the support and is used for limiting the rear end portion of the support.

3. The machining fixture for the automobile rear seat support according to claim 2, wherein the first positioning piece comprises a first positioning clamp, a second positioning clamp and a third positioning clamp, a first positioning reference which is matched with the first positioning clamp to vertically support the support is arranged at the position, close to the first positioning clamp, of the top of the bottom plate, a second positioning reference which is matched with the second positioning clamp to vertically support the support is arranged at the position, close to the second positioning clamp, of the top of the bottom plate, a heightening seat is further arranged at the top of the bottom plate, the heightening seat is located between the first positioning reference and the second positioning reference, and the third positioning clamp is arranged at the top of the heightening seat and matched with the heightening seat to vertically support the support.

4. The machining fixture for the automobile rear seat support according to claim 2, wherein the second positioning piece comprises a fourth positioning clamp and a fifth positioning clamp, a support column is arranged at the top of the bottom plate and close to the second limiting table, the fourth positioning clamp is installed on the support column, the fourth positioning clamp is matched with the support column to horizontally support the support, the fifth positioning clamp is installed between the support column and the first limiting table, and the fifth positioning clamp is used for horizontally clamping the support.

5. The machining fixture for an automobile rear seat support according to claim 4, wherein the third positioning piece comprises a first telescopic cylinder and a first abutting block, the first telescopic cylinder is arranged at the top of the bottom plate and is close to the position of the first limiting table, the output end of the first telescopic cylinder horizontally faces the first limiting table, the first abutting block is fixed at the output end of the first telescopic cylinder, and a second protrusion corresponding to the first abutting block is arranged on one side, close to the first telescopic cylinder, of the first limiting table.

6. The machining fixture for the automobile rear seat support according to claim 2, wherein the fourth positioning piece comprises a rotary cylinder and a locking block, the rotary cylinder is mounted on the second limiting table, an output shaft of the rotary cylinder horizontally faces the support, the locking block is fixed on the output shaft of the rotary cylinder, and a third protrusion corresponding to the locking block is arranged on the second limiting table.

7. The machining clamp for the automobile rear seat support according to claim 4, wherein a side pushing piece is arranged between the positioning clamp five and the first limiting table, the side pushing piece comprises a second telescopic cylinder which is obliquely arranged and a second abutting block which is fixed at the output end of the second telescopic cylinder, and a first bulge corresponding to the second abutting block is arranged on one side, close to the second telescopic cylinder, of the first limiting table.

8. The machining fixture for the rear seat bracket of the automobile according to claim 1, wherein a first limiting column and a second limiting column for limiting the bracket are arranged on the bottom plate.

9. The machining fixture for the automobile rear seat support according to claim 3, wherein a plurality of groups of chip blowing assemblies are arranged on the bottom plate, and the plurality of groups of chip blowing assemblies correspond to the first positioning reference and the second positioning reference respectively.

10. The machining fixture for an automobile rear seat support according to claim 9, wherein the chip blowing assembly comprises a mounting seat and a nozzle, the mounting seat is arranged at a corresponding position on the bottom plate, the nozzle is arranged at the top of the mounting seat, and an air outlet of the nozzle faces the first positioning reference or the second positioning reference.