Rapid clamping fixture for automobile workpiece machining

Abstract

The utility model provides a fast clamping fixture for automobile workpiece processing, which comprises a clamping fixture main body, a dust hood and an organ protective cover, and a middle plate is arranged in the middle of the internal composition of the clamping fixture main body. Two sets of clamping cylinders are started to drive two sets of clamping plates to move towards one side of the center of the middle plate, the two sets of clamping plates can clamp and fix an automobile workpiece, a telescopic rod is pulled according to the machining position of the automobile workpiece by the numerical control lathe, so that a dust hood is located near the machining position, and external dust collection equipment generates negative pressure suction force through a dust collection pipe; by additionally arranging the dust suction hood, machining chippings are sucked by the dust suction hood, so that the later chipping cleaning difficulty can be reduced, the height of the middle plate can be changed by additionally arranging the clamping fixture body and the organ protection hood, tool setting operation of automobile workpieces is facilitated, and the organ protection hood can reduce dust entering the adjusting sliding groove.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamping fixtures for CNC lathes, and particularly relates to a quick clamping fixture for machining automotive workpieces. Background Art

[0002] A CNC lathe is a lathe that adopts computer numerical control technology and can automatically complete the cutting processing of parts. In modern production, CNC lathes are also used to machine automotive-related workpieces. Before machining, it is often necessary to clamp and hold the automotive workpieces to prevent workpiece offset and other situations during the machining process. In common production operations, most CNC lathes and the clamping fixtures for holding automotive workpieces do not have corresponding chip cleaning structures. During the turning and other machining operations of the CNC lathe on automotive workpieces, chips will be generated. The chips will scatter randomly inside the CNC lathe and then fall into the corresponding receiving structure by their own weight. This will cause scattered chips to exist in many parts of the CNC lathe, resulting in more complex subsequent cleaning. Operators need to spend more time to complete the cleaning operation inside the CNC lathe, which is not conducive to reducing the burden on operators and improving efficiency in actual production and machining.

[0003] In summary, there are some problems in the use of quick clamping fixtures without chip cleaning structures. Therefore, a new structure is proposed to solve the above technical problems. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a quick clamping fixture for machining automotive workpieces to solve the problems put forward in the above background art.

[0005] The utility model is realized through the following technical solutions: A quick clamping fixture for machining automotive workpieces includes: a clamping fixture main body, a dust suction hood, and a bellows protective cover. In the middle position of the internal composition of the clamping fixture main body, there is an intermediate plate. On the upper surface of the intermediate plate, a dust suction pipe bracket is provided at the front side. At the left rear end of the dust suction pipe bracket, there is a telescopic rod for adjusting the left and right positions of the dust suction hood. On the left side of the telescopic rod, there is a dust suction pipe ring bracket. Inside the dust suction pipe ring bracket, there is a dust suction pipe for conveying negative pressure suction. Below the dust suction pipe, there is a dust suction hood for adsorbing machining chips. At the lower end of the internal composition of the clamping fixture main body, there is a fixture base for installing the clamping fixture main body. Above the fixture base, there is a bellows protective cover for dust prevention.

[0006] As a preferred implementation, the upper end of the dust suction pipe is connected to an external dust suction device. The telescopic rod and the dust suction pipe bracket are of an integral structure. At both the front and rear ends of the upper surface of the intermediate plate, there is a set of clamping seats, and negative pressure suction can be generated through the dust suction pipe by the external dust suction device.

[0007] As a preferred embodiment, a clamping cylinder for driving the clamping plate to move is provided inside the clamping seat. A clamping plate for clamping and fixing the automotive workpiece is provided on one side of the clamping cylinder close to the center of the middle plate. The center line of the telescopic rod is in the same plane as the left - right center line of the middle plate. The clamping cylinder can drive the clamping plate to move back and forth, and enable the two clamping plates to clamp and fix the automotive workpiece before processing.

[0008] As a preferred embodiment, two sets of upper rotating seats arranged at intervals are provided at the four corners of the lower surface of the middle plate. An adjusting rod is provided between the two sets of upper rotating seats. Lower rotating seats for facilitating the rotation of the adjusting rod are provided on the front and rear sides of the lower end of the adjusting rod.

[0009] As a preferred embodiment, the upper and lower ends of the adjusting rod are connected to the upper rotating seat and the lower rotating seat through pin shafts respectively. Adjusting chutes are provided at the left and right ends of the upper surface of the fixture base. A double - headed motor for driving the adjusting screw to rotate is provided at the middle position inside the adjusting chute.

[0010] As a preferred embodiment, a set of adjusting screws for driving the cross bar to move left and right are provided on both the left and right sides of the double - headed motor. A cross bar is provided below the lower rotating seat. An adjusting slider is provided on the lower surface of the cross bar.

[0011] As a preferred embodiment, the adjusting slider is movably fitted with the adjusting chute. An adjusting screw hole is vertically penetrated through the left side surface of the adjusting slider. The adjusting screw is in threaded fit with the adjusting screw hole, which can change the height of the middle plate, facilitating the tool setting operation of the automotive workpiece. And the bellows protective cover can reduce the dust entering the adjusting chute.

[0012] After adopting the above technical solutions, the beneficial effects of the present utility model are as follows: By adding the clamping fixture main body, starting the two clamping cylinders to drive the two clamping plates to move towards the center side of the middle plate, the two clamping plates can clamp and fix the automotive workpiece. According to the processing position of the automotive workpiece on the CNC lathe, the telescopic rod is pulled to make the dust suction hood near the processing position. The external dust suction device generates negative pressure suction through the dust suction pipe, so that the dust suction hood adsorbs the processing debris, thereby reducing the difficulty of cleaning the debris in the later stage. By adding the clamping fixture main body and the bellows protective cover, the height of the middle plate can be changed, facilitating the tool setting operation of the automotive workpiece, and the bellows protective cover can reduce the dust entering the adjusting chute. Description of the Drawings

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of a quick clamping fixture for automobile workpiece processing according to the present invention.

[0015] Figure 2 This is a schematic diagram of the upper side structure of the clamping fixture main body in a quick clamping fixture for automobile workpiece processing according to the present invention.

[0016] Figure 3 This is a schematic diagram of the lower side structure of the clamping fixture main body in a quick clamping fixture for automobile workpiece processing according to the present invention.

[0017] In the figure, 100 - clamping fixture main body, 101 - fixture base, 102 - lower rotating seat, 103 - cross bar, 104 - adjusting slider, 105 - adjusting chute, 106 - adjusting screw, 107 - adjusting rod, 108 - upper rotating seat, 109 - intermediate plate, 110 - clamping seat, 111 - clamping cylinder, 112 - clamping plate, 113 - dust suction pipe support, 114 - telescopic rod, 115 - dust suction pipe ring frame, 116 - dust suction pipe, 117 - dust suction hood;

[0018] 200 - bellows protective cover. Detailed implementation manners

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] Please refer to Figures 1 to 3 , the present invention provides a technical solution: a quick clamping fixture for automobile workpiece processing, including: a clamping fixture main body 100, a dust suction hood 117, and a bellows protective cover 200. An intermediate plate 109 is provided at the middle position of the internal composition of the clamping fixture main body 100;

[0021] On the upper surface of the intermediate plate 109, there is a dust suction pipe bracket 113 provided at the front side. On the left side of the rear end of the dust suction pipe bracket 113, there is a telescopic rod 114 for adjusting the left and right positions of the dust suction hood 117. On the left side of the telescopic rod 114, there is a dust suction pipe ring bracket 115. Inside the dust suction pipe ring bracket 115, there is a dust suction pipe 116 for conveying negative pressure suction.

[0022] Below the dust suction pipe 116, there is a dust suction hood 117 for adsorbing processing debris. At the lower end of the internal components of the clamping fixture main body 100, there is a fixture base 101 for installing the clamping fixture main body 100. Above the fixture base 101, there is a bellows protective cover 200 for dust prevention.

[0023] The upper end of the dust suction pipe 116 is connected to an external dust suction device. The telescopic rod 114 and the dust suction pipe bracket 113 are of an integral structure. At both the front and rear ends of the upper surface of the intermediate plate 109, there is a set of clamping seats 110, and negative pressure suction can be generated through the dust suction pipe 116 by an external dust suction device.

[0024] Inside the clamping seat 110, there is a clamping cylinder 111 for driving the clamping plate 112 to move. On the side close to the center of the intermediate plate 109 of the clamping cylinder 111, there is a clamping plate 112 for clamping and fixing the automotive workpiece. The center line of the telescopic rod 114 is in the same plane as the left and right center lines of the intermediate plate 109. The clamping cylinder 111 can drive the clamping plate 112 to move back and forth, and enable the two clamping plates 112 to clamp and fix the automotive workpiece before processing.

[0025] Please refer to Figure 1-Figure 3 , as the first embodiment of the present invention: First, the user starts the two clamping cylinders 111 to drive the two clamping plates 112 to move towards the center side of the intermediate plate 109, enabling the two clamping plates 112 to quickly clamp and fix the automotive workpiece. Second, the user pulls the telescopic rod 114 according to the processing position of the automotive workpiece on the numerical control lathe to make the dust suction hood 117 near the processing position. The external dust suction device generates negative pressure suction through the dust suction pipe 116, enabling the dust suction hood 117 to adsorb the processing debris, thereby reducing the dispersion of the processing debris everywhere and reducing the difficulty of cleaning the debris in the later stage.

[0026] At the four corners of the lower surface of the intermediate plate 109, there are two sets of upper rotating seats 108 arranged at intervals. Between the two sets of upper rotating seats 108, there is an adjusting rod 107. On the front and rear sides of the lower end of the adjusting rod 107, there are lower rotating seats 102 facilitating the rotation of the adjusting rod 107.

[0027] The upper and lower ends of the adjusting rod 107 are connected to the upper rotating seat 108 and the lower rotating seat 102 through pin shafts. At the left and right ends of the upper surface of the fixture base 101, there are adjusting chutes 105 opened. At the middle position inside the adjusting chutes 105, there is a double-headed motor for driving the adjusting screw 106 to rotate.

[0028] A pair of adjusting screws 106 for driving the cross bar 103 to move left and right are provided on both the left and right sides of the double-headed motor. A cross bar 103 is provided below the lower rotating seat 102, and an adjusting slider 104 is provided on the lower surface of the cross bar 103.

[0029] The adjusting slider 104 and the adjusting chute 105 are movably fitted with each other. An adjusting screw hole is vertically penetrated through the left side surface of the adjusting slider 104. The adjusting screw 106 is in threaded engagement with the adjusting screw hole, which can change the height of the middle plate 109, facilitating the tool setting operation of the automotive workpiece, and the bellows protective cover 200 can reduce the entry of dust into the adjusting chute 105.

[0030] Please refer to Figure 1-Figure 3 , as the second embodiment of the present invention: Based on the above first embodiment, the bellows protective cover 200 is installed above the fixture base 101, which can isolate the adjusting chute 105 from the outside world, thereby reducing the entry of external dust. And the user can start the double-headed motor to drive the two groups of adjusting screws 106 to rotate according to the position of the automotive workpiece after being clamped and fixed. The adjusting screw 106 cooperates with the adjusting screw hole to drive the adjusting slider 104 to slide left and right inside the adjusting chute 105, so that the cross bar 103 drives the angle of the adjusting rod 107 to change, and then the height position of the middle plate 109 changes, which can facilitate the tool setting operation of the automotive workpiece.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quick clamping fixture for automobile workpiece processing, comprising: A clamping fixture body (100), a dust cover (117) and an accordion protective cover (200), characterized in that: an intermediate plate (109) is provided at the middle position of the internal components of the clamping fixture body (100); A dust suction pipe bracket (113) is provided on the front side of the upper surface of the middle plate (109); a telescopic rod (114) for adjusting the left and right positions of the dust suction cover (117) is provided on the left side of the rear end of the dust suction pipe bracket (113); a dust suction pipe ring frame (115) is provided on the left side of the telescopic rod (114); a dust suction pipe (116) for transmitting negative pressure suction is provided on the inner side of the dust suction pipe ring frame (115); A dust hood (117) for absorbing processing debris is provided below the dust suction pipe (116); a clamp base (101) for installing the clamp base (100) is provided at the lower end of the internal structure of the clamping fixture body (100); and an accordion protective cover (200) for dust prevention is provided above the clamp base (101).

2. The quick clamping fixture for automobile workpiece processing according to claim 1, characterized in that: The upper end of the dust suction pipe (116) is connected to an external dust suction device, the telescopic rod (114) and the dust suction pipe bracket (113) are an integrated structure, and a group of clamping seats (110) are provided at both the front and rear ends of the upper surface of the middle plate (109).

3. A quick clamping fixture for automobile workpiece processing as claimed in claim 2, characterized in that: A clamping cylinder (111) for driving a clamping plate (112) to move is disposed inside the clamping seat (110), and a clamping plate (112) for clamping and fixing an automobile workpiece is disposed on one side of the clamping cylinder (111) close to the center of the middle plate (109), and the telescopic rod (114) and the center line are located in the same plane as the left and right center lines of the middle plate (109).

4. The quick clamping fixture for automobile workpiece processing according to claim 1, characterized in that: Two groups of upper rotating seats (108) are arranged at intervals at the four corners of the lower surface of the middle plate (109), an adjusting rod (107) is arranged between the two groups of upper rotating seats (108), and lower rotating seats (102) are arranged on both the front and rear sides of the lower end of the adjusting rod (107) to facilitate the rotation of the adjusting rod (107).

5. A quick clamping fixture for machining automobile workpieces as claimed in claim 4, characterized in that: The upper and lower ends of the adjusting rod (107) are connected to the upper rotating seat (108) and the lower rotating seat (102) through pin shafts. The left and right ends of the upper surface of the clamp base (101) are provided with adjusting grooves (105). The middle position inside the adjusting groove (105) is provided with a double-headed motor for driving the adjusting screw (106) to rotate.

6. A quick clamping fixture for machining automobile workpieces as claimed in claim 5, characterized in that: A group of adjusting screws (106) for driving the cross bar (103) to move left and right are provided on both sides of the double-headed motor; a cross bar (103) is provided below the lower rotating seat (102); and an adjusting slider (104) is provided on the lower surface of the cross bar (103).

7. A quick clamping fixture for machining automobile workpieces as claimed in claim 6, characterized in that: The adjusting slider (104) and the adjusting slot (105) are movably engaged with each other, and the left side of the adjusting slider (104) is vertically penetrated to form an adjusting screw hole, and the adjusting screw rod (106) is threadedly connected with the adjusting screw hole.

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