Pneumatic positioning clamp for automobile part machining

Abstract

The utility model relates to the technical field of automobile part machining equipment, in particular to a pneumatic positioning clamp for automobile part machining, which comprises a machining table, a supporting part is arranged on the machining table, two slideways are arranged on the supporting part, a positioning part is mounted on the slideways, the positioning part comprises two rod sleeves, and the two rod sleeves are arranged on the machining table. The two rod sleeves are installed on one sides of the tops of the two sliding ways correspondingly, the two rod sleeves pneumatically stretch out and draw back through the air pressure rod to drive the sliding arms on the pushing arms to get close to the automobile bottom plate and drive the anti-skid plates to clamp the automobile bottom plate, the two-way screw can be conveniently rotated through the rotating sleeve, the distance between the two anti-skid plates is adjusted, and the two-way screw is used for being matched with the automobile bottom plates of different sizes. The problems of shaking and unstable stress during machining are avoided, the hydraulic rod is controlled to stretch out and draw back to drive the support to ascend and descend, the clamped automobile bottom plate is driven through the supporting part to be subjected to ascending and descending adjustment, and therefore the machining height can be adjusted conveniently, and the machining range of the automobile bottom plate is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing equipment, in particular to a pneumatic positioning fixture for automobile parts processing. Background Art

[0002] Generally speaking, vehicles with four wheels are generally called cars. Cars provide great convenience for human travel. Various parts of cars require fixtures during processing. Whether a fixture is designed reasonably and practically can affect the production efficiency of parts and the quality of products.

[0003] According to the Chinese patent publication number CN204771705U, the patent provides a positioning fixture for processing automotive sheet parts, including a base, a top column is provided at the top of the base, an adjusting roller is rotatably installed on the top column, an adjusting shaft is connected to the adjusting roller, a fixed seat is rotatably installed on the upper part of the adjusting shaft, and both sides of the base are connected to the fixed seat through support rods; a cavity is provided in the fixed seat, a bevel gear is fixedly installed on the adjusting shaft in the cavity, two supporting surfaces of the fixed seat are vertically arranged, and two pull rods are rotatably installed correspondingly, so as to improve the efficiency and product quality of automotive parts in processing, and the parts fixed on the fixed seat and the clamping seat can be kept vertical, which provides important conditions for the standardized production of automotive parts.

[0004] In the above patent, the automobile parts cannot be clamped according to the size of automobile plate parts before and after processing, nor can the processing height be adjusted according to the on-site operation requirements. Sparks and debris generated during the processing of parts can easily damage the shaft parts in the fixture, reducing the service life. In view of this, we propose a pneumatic positioning fixture for automobile parts processing. Utility Model Content

[0005] The utility model aims to provide a pneumatic positioning fixture for automobile parts processing, which solves the problems that the size of automobile plate parts cannot be adapted to the fixture, the processing height cannot be adjusted, and the sparks and debris generated by parts processing are easy to damage shaft parts.

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

[0007] A pneumatic positioning fixture for automobile parts processing comprises a processing table, wherein the processing table is provided with a supporting part, the supporting part is provided with two slideways, the slideway is provided with a positioning part, the positioning part comprises two rod sleeves, the two rod sleeves are respectively installed on one side of the top of the two slideways, the inner walls of the two rod sleeves are respectively installed with pneumatic rods, the movable ends of the two pneumatic rods are connected with push arms, a sliding arm is connected between the two push arms, the sliding sleeve on the sliding arm is provided with two sliding sleeves, one side of the two sliding sleeves is connected with an anti-skid plate, the sliding arm is a U-shaped structure, and a bidirectional screw is rotatably connected between the two ear ends of the sliding arm, the ends of the two sliding sleeves away from the anti-skid plate are respectively threadedly connected to the outer walls of the positive and negative threads of the bidirectional screw, and the middle sleeve of the bidirectional screw is provided with a rotating sleeve.

[0008] Preferably, there are two positioning parts, another positioning part is installed on the other side of the top of the two slideways, and the two positioning parts are symmetrically arranged.

[0009] Preferably, the processing table is equipped with an adjustment part and includes a hydraulic rod, a movable end of the hydraulic rod is connected to a bracket, the bracket is a U-shaped structure, and the inner wall of the bracket is connected to two limit plates.

[0010] Preferably, a vehicle floor is provided between the two limiting plates, and the vehicle floor is clamped between four anti-skid plates in the two positioning parts.

[0011] Preferably, a protective portion is installed on the positioning portion and includes a connecting rod, the two ends of the connecting rod are respectively fixed through the inner walls of the two slides, the outer wall of the connecting rod is connected to one side of a cover cloth, and the two corner ends on the other side of the cover cloth are respectively connected to the two push arms in the positioning portion, and a through hole is opened on the cover cloth.

[0012] Preferably, the number of the shielding parts is two, another shielding part is symmetrically mounted on another positioning part, and the number of the supporting parts is four.

[0013] Preferably, the four supporting parts all include pillars, and the four pillars are respectively installed at the four corners of the top surface of the processing table, the top of each pillar is slidably connected to a sliding rod, the top of each sliding rod is connected to a support plate, the bottom of each support plate is connected to a limiting rod, the side wall of each pillar is integrally connected with a protrusion, each limiting rod is slidably connected to the adjacent protrusion, each support plate is elastically connected to the adjacent protrusion with a tension spring, and each slide is respectively installed on every two support plates.

[0014] By means of the above technical solution, the utility model provides a pneumatic positioning fixture for automobile parts processing, which has at least the following beneficial effects:

[0015] (1) The utility model pneumatically extends and retracts the pneumatic rod, thereby driving the sliding arm on the push arm to approach the car floor, driving the anti-slip plate to clamp the car floor, and the rotating sleeve can conveniently rotate the bidirectional screw to adjust the distance between the two anti-slip plates, which is used to match the sizes of car floors of different sizes, avoiding shaking and unstable force during processing. The hydraulic rod is controlled to extend and retract to drive the bracket to rise and fall, and the support part drives the clamped car floor to rise and fall, thereby facilitating the adjustment of the processing height and increasing the processing range of the car floor.

[0016] (2) When the push arm of the utility model is pushed by the pneumatic rod, the two corner ends of the cover cloth will be pulled and unfolded to cover the bidirectional screw, protect the threaded parts and extend their service life, avoid sparks and debris splashing during the processing of the automobile bottom plate and damage to the threaded parts, and collect the debris through the cover cloth, which is convenient for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the positioning part and the adjusting part in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the support part in the utility model.

[0022] In the figure: 1. processing table; 2. supporting part; 21. pillar; 22. sliding rod; 23. support plate; 24. limiting rod; 25. tension spring; 3. slideway; 4. positioning part; 41. rod sleeve; 42. pneumatic rod; 43. push arm; 44. sliding arm; 45. sliding sleeve; 46. anti-skid plate; 47. two-way screw; 48. rotating sleeve; 5. adjusting part; 51. hydraulic rod; 52. bracket; 53. limiting plate; 6. vehicle bottom plate; 7. shielding part; 71. connecting rod; 72. cover cloth; 73. through hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1-4 The utility model provides a pneumatic positioning fixture for automobile parts processing, including a processing table 1, a supporting part 2 is arranged on the processing table 1, two slideways 3 are arranged on the supporting part 2, a positioning part 4 is installed on the slideway 3, the positioning part 4 includes two rod sleeves 41, the two rod sleeves 41 are respectively installed on the top side of the two slideways 3, the inner walls of the two rod sleeves 41 are installed with gas pressure rods 42, the movable ends of the two gas pressure rods 42 are connected with push arms 43, a sliding arm 44 is connected between the two push arms 43, the sliding sleeve on the sliding arm 44 is provided with two sliding sleeves 45, one side of the two sliding sleeves 45 is connected with an anti-skid plate 46, the sliding arm 44 is a U-shaped structure, and the two ear ends of the sliding arm 44 are rotated between them. A bidirectional screw 47 is movably connected, and one end of the two sliding sleeves 45 away from the anti-skid plate 46 is respectively threadedly connected to the outer wall of the positive and negative threads of the bidirectional screw 47, and a rotating sleeve 48 is sleeved on the middle part of the bidirectional screw 47. There are two positioning parts 4, and the other positioning part 4 is installed on the other side of the top of the two slideways 3. The two positioning parts 4 are symmetrically arranged. An adjustment part 5 is installed on the processing table 1 and includes a hydraulic rod 51. A bracket 52 is connected to the movable end of the hydraulic rod 51. The bracket 52 is a U-shaped structure. Two limit plates 53 are connected to the inner wall of the bracket 52. A car floor 6 is arranged between the two limit plates 53, and the car floor 6 is clamped between the four anti-skid plates 46 in the two positioning parts 4.

[0026] In this embodiment, the pneumatic rod 42 is pneumatically extended and retracted, thereby driving the sliding arm 44 on the push arm 43 to approach the car floor 6, driving the anti-slip plate 46 to clamp the car floor 6, and the rotating sleeve 48 can conveniently rotate the bidirectional screw 47 to adjust the distance between the two anti-slip plates 46, control the extension and retraction of the hydraulic rod 51 to drive the bracket 52 to rise and fall, and drive the clamped car floor 6 to rise and fall through the support part 2.

[0027] Embodiment 2

[0028] See also Figure 1-4On the basis of the first embodiment, the utility model provides a technical solution: preferably, a shielding portion 7 is installed on the positioning portion 4 and includes a connecting rod 71, the two ends of the connecting rod 71 are respectively fixed to the inner walls of the two slideways 3, the outer wall of the connecting rod 71 is connected to one side of a cover cloth 72, and the two corner ends on the other side of the cover cloth 72 are respectively connected to the two push arms 43 in the positioning portion 4, and the two corner ends of the cover cloth 72 will be pulled and unfolded following the push arms 43, and a through hole 73 is opened on the cover cloth 72, and the through hole 73 grasps the rotating sleeve 48 to conveniently rotate the bidirectional screw 47, and there are two shielding portions 7, and the other shielding portion 7 is symmetrically installed on the other positioning portion 4, and the supporting portion There are four support parts 2, each of which includes a pillar 21. The four pillars 21 are respectively installed at the four corners of the top surface of the processing table 1. The top of each pillar 21 is slidably connected to a slide rod 22, and the top of each slide rod 22 is connected to a support plate 23. The bottom of each support plate 23 is connected to a limiting rod 24. The side wall of each pillar 21 is integrally connected with a protrusion, and each limiting rod 24 is slidably connected to the adjacent protrusion. Each support plate 23 is elastically connected to the adjacent protrusion with a tension spring 25. The tension spring 25 produces elastic contraction and pulls the support plate 23 to reset under the limit of the slide rod 22. Each slideway 3 is respectively installed on every two support plates 23.

[0029] In this embodiment, when the push arm 43 is pushed by the pneumatic rod 42 , the two corner ends of the cover cloth 72 will be pulled and unfolded to cover the bidirectional screw 47 , and the debris is collected by the cover cloth 72 .

[0030] Working principle: insert the automobile bottom plate 6 between the two limit plates 53, and pneumatically extend and retract the pneumatic rod 42 to drive the sliding arm 44 on the push arm 43 to approach the automobile bottom plate 6. The bidirectional screw 47 can be easily rotated by grasping the rotating sleeve 48 through the through hole 73, and drive the two sliding sleeves 45 to approach or move away from each other along the sliding arm 44, so as to adjust the distance between the two anti-slip plates 46, which is used to match the sizes of automobile bottom plates 6 of different sizes, and drive the anti-slip plate 46 to clamp the automobile bottom plate 6 through the pneumatic rod 42, so that the automobile bottom plate 6 is stably clamped to avoid shaking and unstable force during processing. By controlling the extension and retraction of the hydraulic rod 51, the bracket 52 is driven to rise and fall, and the clamped automobile bottom plate 6 is driven to rise and fall through the support part 2, so as to facilitate the adjustment of the processing height, increase the processing range of the automobile bottom plate 6, and make the automobile bottom plate 6 still maintain flexibility in the clamped state.

[0031] During the rising of the hydraulic rod 51, the bracket 52 drives the automobile floor 6 to rise. At the same time, due to the existence of the clamping force, the positioning parts 4 on both sides will be driven to rise, thereby pulling the support plate 23 up through the slide 3, and realizing the effect of rising and adjusting the automobile floor 6 in the clamping state. During the contraction of the hydraulic rod 51, the bracket 52 moves away from the automobile floor 6. At the same time, the tension spring 25 produces elastic contraction and pulls the support plate 23 to reset under the limit of the slide rod 22, thereby prompting the slide 3 to descend and reset, so that the automobile floor 6 can be lowered in the clamping state. The processing height is reduced. In the process of the push arm 43 being pushed by the pneumatic rod 42, the two corner ends of the cover cloth 72 will be pulled and unfolded, thereby shielding the bidirectional screw 47, avoiding sparks and debris splashing during the processing of the automobile floor 6 and damaging the threaded parts, protecting the threaded parts and extending the service life. At the same time, the debris can also be collected by the cover cloth 72, which is convenient for cleaning the debris.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic positioning fixture for automobile parts processing, comprising a processing table (1), characterized in that: The processing table (1) is provided with a support portion (2), the support portion (2) is provided with two slideways (3), the slideway (3) is provided with a positioning portion (4), the positioning portion (4) comprises two rod sleeves (41), the two rod sleeves (41) are respectively installed on one side of the top of the two slideways (3), the inner walls of the two rod sleeves (41) are both provided with pneumatic rods (42), the movable ends of the two pneumatic rods (42) are both connected with push arms (43), and the two push arms (43) are connected between the two push arms (43). A sliding arm (44) is connected, and two sliding sleeves (45) are provided on the sliding arm (44). One side of the two sliding sleeves (45) is connected to an anti-slide plate (46). The sliding arm (44) is a U-shaped structure, and a bidirectional screw (47) is rotatably connected between the two ear ends of the sliding arm (44). One end of the two sliding sleeves (45) away from the anti-slide plate (46) is respectively threadedly connected to the positive and negative threaded outer walls of the bidirectional screw (47), and a rotating sleeve (48) is provided in the middle of the bidirectional screw (47).

2. The pneumatic positioning fixture for automobile parts processing according to claim 1, characterized in that: There are two positioning parts (4), another positioning part (4) is installed on the other side of the top of the two slideways (3), and the two positioning parts (4) are symmetrically arranged.

3. The pneumatic positioning fixture for automobile parts processing according to claim 2, characterized in that: The processing table (1) is provided with an adjusting part (5) comprising a hydraulic rod (51), the movable end of the hydraulic rod (51) being connected to a bracket (52), the bracket (52) being a U-shaped structure, and the inner wall of the bracket (52) being connected to two limit plates (53).

4. The pneumatic positioning fixture for automobile parts processing according to claim 3, characterized in that: A vehicle floor panel (6) is arranged between the two limiting plates (53), and the vehicle floor panel (6) is clamped between four anti-slip plates (46) in the two positioning parts (4).

5. The pneumatic positioning fixture for automobile parts processing according to claim 4, characterized in that: The positioning portion (4) is provided with a shielding portion (7) and includes a connecting rod (71), the two ends of the connecting rod (71) are respectively fixed through the inner walls of the two slideways (3), the outer wall of the connecting rod (71) is connected to one side of a shielding cloth (72), the two corner ends on the other side of the shielding cloth (72) are respectively connected to two push arms (43) in the positioning portion (4), and a through hole (73) is provided on the shielding cloth (72).

6. The pneumatic positioning fixture for automobile parts processing according to claim 5, characterized in that: There are two shielding portions (7), another shielding portion (7) is symmetrically mounted on another positioning portion (4), and there are four supporting portions (2).

7. The pneumatic positioning fixture for automobile parts processing according to claim 6, characterized in that: The four support parts (2) each include a pillar (21), and the four pillars (21) are respectively mounted at the four corners of the top surface of the processing table (1); the top of each pillar (21) is slidably connected to a slide rod (22), the top of each slide rod (22) is connected to a support plate (23), the bottom of each support plate (23) is connected to a limiting rod (24), the side wall of each pillar (21) is integrally connected to a protrusion, each limiting rod (24) is slidably connected to an adjacent protrusion, each support plate (23) is elastically connected to an adjacent protrusion with a tension spring (25), and each slideway (3) is respectively mounted on every two support plates (23).

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