CN219818886U

CN219818886U - Shell clamp

Info

Publication number: CN219818886U
Application number: CN202320906543.4U
Authority: CN
Inventors: 张三宝; 张琴; 张洪权
Original assignee: Anhui Heli Co Ltd
Current assignee: Anhui Heli Co Ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-10-13
Anticipated expiration: 2033-04-21

Abstract

The utility model discloses a shell clamp, which comprises a welding base welded by multiple layers of plates, wherein a first positioning plate and a second positioning plate with level height difference are arranged on the welding base, diamond pins are arranged on the first positioning plate, cylindrical pins are arranged on the second positioning plate, rotatable elastic supports are arranged on the cylindrical pins and the side faces of the diamond pins, compression assemblies used for fixing two sides of a workpiece are arranged on the outer sides of the first positioning plate and the outer sides of the second positioning plate, and an auxiliary clamping device used for auxiliary fixing the upper side of the workpiece is arranged on the rear side of the compression assembly. According to the fixture special for the forklift transmission shell, alignment is not needed in the forklift transmission shell machining process, the workpiece is placed on the fixture to be directly clamped, the requirement of batch machining of the forklift transmission shell is met, meanwhile, time is saved, and the fixture is better, reliable and stable compared with manual operation, and quality is guaranteed.

Description

Shell clamp

Technical Field

The utility model relates to the technical field of forklift parts, in particular to a shell clamp.

Background

The forklift transmission system shell is formed by processing an iron casting in three working procedures. The first procedure is to machine the outer circle by a vertical lathe, the second procedure is to locate the machined outer circle on a horizontal machining center, to machine the locating surface and the locating pin hole, and the third procedure is to locate the locating surface and the locating pin hole on the horizontal machining center, so that the finish machining requirement is high. In the last procedure, the original positioning mode is a simple and independent positioning block and positioning plate structure, so that the processing requirement in trial production is met, but each workpiece needs to be manually aligned, the time is delayed, the requirement in batch processing cannot be met, the reference is found by personal experience, and the quality is difficult to guarantee. Therefore, how to provide a housing clamp is a problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims to provide a shell clamp, which is designed to be special for a forklift transmission shell, so that in the forklift transmission shell machining process, alignment is not needed, a workpiece is placed on the clamp to be directly clamped, the requirement of batch machining of forklift transmission shells is met, meanwhile, the time is saved, and the clamp is better, reliable and stable compared with manual operation, and the quality is ensured.

According to the shell clamp provided by the embodiment of the utility model, the shell clamp comprises a welding base welded by a plurality of layers of plates, a first positioning plate and a second positioning plate with level difference are arranged on the welding base, diamond pins are arranged on the first positioning plate, cylindrical pins are arranged on the second positioning plate, rotatable elastic supports are arranged on the sides of the cylindrical pins and the diamond pins, compression assemblies for fixing two sides of a workpiece are arranged on the outer sides of the first positioning plate and the outer sides of the second positioning plate, and an auxiliary clamping device for auxiliary fixing the upper side of the workpiece is arranged on the rear side of the compression assembly.

Optionally, the compressing assembly includes the support of fixed mounting on welding base, the support top is provided with the clamp plate, the fluting has been seted up on the clamp plate, run through in the fluting and be provided with the double-end screw rod, be located threaded mounting has first shoulder nut on the double-end screw rod of fluting upper end, double-end screw rod other end fixed connection is at the support top surface, be located the support with the cover is equipped with the spring on the double-end screw rod between the clamp plate, the support with still install the ejector pin between the clamp plate.

Optionally, a handle ball is arranged on the side surface of the pressing plate, and the handle ball is connected with the pressing plate through a connecting rod.

Optionally, the auxiliary clamping device includes two supports of fixed mounting on the welding base, two be provided with along with the shaped plate between the support, along with shaped plate one end through the connecting axle with one support articulated setting, another the support top rotates installs the connecting rod, the connecting rod top runs through along with shaped plate other end setting and connecting rod top screw thread installs the second and takes shoulder nut.

Optionally, the support is provided with a long propping bolt with the inward plug, and the follow-up plate is provided with a short propping bolt with the inward plug.

Optionally, the diamond pins and the cylindrical pins are respectively in clearance fit with corresponding pin holes on the workpiece.

Optionally, the welding base is three-layer plate structure, the welding base includes upper portion board, welding gusset and lower part board, the lower part board is connected with horizontal processing workstation.

The beneficial effects of the utility model are as follows:

according to the fixture special for the forklift transmission shell, alignment is not needed in the forklift transmission shell machining process, the workpiece is placed on the fixture to be directly clamped, the requirement of batch machining of the forklift transmission shell is met, meanwhile, time is saved, and the fixture is better, reliable and stable compared with manual operation, and quality is guaranteed.

Drawings

In the drawings:

fig. 1 is a schematic structural diagram of a shell fixture machining workpiece according to the present utility model.

Fig. 2 is a schematic structural diagram of a shell clamp according to the present utility model.

Fig. 3 is a schematic top view of a shell clamp according to the present utility model.

Fig. 4 is a schematic structural view of a diamond pin in a shell clamp according to the present utility model.

Fig. 5 is a schematic structural view of a pressing assembly in a shell clamp according to the present utility model.

Fig. 6 is a schematic structural diagram of an auxiliary clamping device in a shell clamp according to the present utility model.

In the figure: 1-welding base, 2-first locating plate, 3-second locating plate, 4-cylindric lock, 5-diamond round pin, 51-locating end, 6-hold-down subassembly, 61-support, 62-clamp plate, 63-first shoulder nut, 64-double threaded screw, 65-connecting rod, 66-handle ball, 67-ejector pin, 68-spring, 7-elastic support, 8-auxiliary clamping device, 81-support, 82-connecting axle, 83-follow plate, 84-short tight bolt, 85-second shoulder nut, 86-connecting rod, 87-long tight bolt, 88-top.

Description of the embodiments

Referring to fig. 1-4, a shell fixture comprises a welding base 1 welded by multiple layers of plates, wherein the welding base 1 is provided with a first locating plate 2 and a second locating plate 3 with a horizontal height difference because the locating surfaces of a product are two surfaces instead of the same surface, in practical application, the tolerance requirements of the first locating plate 2 and the second locating plate 3 are higher and are generally within +/-0.02 mm, so that two locating plate surfaces can be basically attached to the locating surfaces of a workpiece, a diamond pin 5 is installed on the first locating plate 2, a cylindrical pin 4 is installed on the second locating plate 3, the side surfaces of the cylindrical pin 4 and the diamond pin 5 are respectively provided with a rotatable elastic support 7, the elastic supports 7 are used for supporting parts which possibly vibrate or deform in the processing process of the workpiece, the blank surfaces can be specially used for supporting the blank surfaces, the adjustment range is about 5mm along with the change of the shape of the blank, the outer sides of the first locating plate 2 and the second locating plate 3 are respectively provided with a pressing component 6 used for fixing two sides of the workpiece, the rear side of the pressing component 6 is provided with an arched supporting device used for fixing the upper side of the workpiece, and the auxiliary supporting device is designed to reduce the auxiliary supporting point along with the shape 8, and the auxiliary quality is a symmetrical supporting point is designed for processing, and the basic quality is guaranteed.

In this embodiment, the angle of the diamond pins 5 and the cylindrical pins 4, which are in clearance fit with corresponding pin holes on the workpiece to perform the product positioning function, needs to be determined according to the positions of the diamond pins 5 and the cylindrical pins 4, that is, the long positioning ends 51 of the diamond pins 5 are required to be placed at 90 ° perpendicular to the connecting line of the diamond pins 5 and the cylindrical pins 4.

In this embodiment, the welding base 1 is three-layer plate structure, and the welding base 1 includes upper portion board, welding gusset and lower part board, and the centre is for welding gusset and is used for connecting lower part board and upper portion board, and the lower part board be for with horizontal machining center workstation location connection usefulness, upper portion board be with on the anchor clamps other structure take root usefulness, when the overall height of welding base 1 depends on fork truck transmission system casing nadir, the main shaft of fork truck transmission system casing the lower extreme does not interfere, leaves the space with the lower part board.

Referring to fig. 5, in this embodiment, the compressing assembly 6 includes a bracket 61 fixedly installed on the welding base 1, a pressing plate 62 is provided above the bracket 61, a slot is provided on the pressing plate 62, a double-headed screw 64 is provided in the slot in a penetrating manner, a first shoulder nut 63 is mounted on the double-headed screw 64 located at the upper end of the slot in a threaded manner, the other end of the double-headed screw 64 is fixedly connected to the top surface of the bracket 61, a spring 68 is sleeved on the double-headed screw 64 located between the bracket 61 and the pressing plate 62, and a push rod 67 is also mounted between the bracket 61 and the pressing plate 62.

In the present embodiment, a handle ball 66 is provided on the side surface of the platen 62, and the handle ball 66 is connected to the platen 62 via a link 65.

Referring to fig. 6, in this embodiment, the auxiliary clamping device 8 includes two supports 81 fixedly mounted on the welding base 1, a follower plate 83 is disposed between the two supports 81, one end of the follower plate 83 is hinged to one support 81 through a connecting shaft 82, a connecting rod 86 is rotatably mounted at the top end of the other support 81, the top of the connecting rod 86 penetrates through the other end of the follower plate 83, and a second shoulder nut 85 is mounted at the top end of the connecting rod 86 in a threaded manner.

In this embodiment, a long abutment bolt 87 having a plug 88 provided inward is mounted on the support 81, and a short abutment bolt 84 having a plug 88 provided inward is mounted on the follower plate 83.

The clamping sequence in this embodiment: the forklift transmission shell is hoisted to the upper parts of the first locating plate 2 and the second locating plate 3, is located through the diamond pins 5 and the cylindrical pins 4, then falls down, then two elastic supports 7 are locked, the pressing mechanism 6 is tightly pressed on steps on two sides of the forklift transmission shell, and six jacks 88 on the auxiliary clamping device 8 are rotated inwards to prop against the forklift transmission shell, so that clamping is completed.

According to the clamp special for the forklift transmission shell, alignment is not needed in the forklift transmission shell machining process, workpieces are placed on the clamp to be directly clamped, the requirement of batch machining of the forklift transmission shell is met, meanwhile, time is saved, and the clamp is better, reliable and stable in comparison with manual operation, and quality is guaranteed.

Claims

1. The utility model provides a casing anchor clamps, its characterized in that includes by multilayer panel welded welding base (1), be provided with first locating plate (2) and second locating plate (3) that have the level difference on welding base (1), install diamond pin (5) on first locating plate (2), install cylindric lock (4) on second locating plate (3), cylindric lock (4) with diamond pin (5) side all is provided with rotatable elastic support (7), first locating plate (2) with second locating plate (3) outside all is provided with and is used for compressing tightly subassembly (6) of fixed work piece both sides, compressing tightly subassembly (6) rear side is provided with auxiliary clamping device (8) that are used for the auxiliary fixation work piece upside.

2. The shell clamp according to claim 1, wherein the pressing assembly (6) comprises a bracket (61) fixedly mounted on the welding base (1), a pressing plate (62) is arranged above the bracket (61), a groove is formed in the pressing plate (62), a double-headed screw (64) is arranged in the groove in a penetrating manner, a first shoulder nut (63) is mounted on the double-headed screw (64) at the upper end of the groove in a threaded manner, the other end of the double-headed screw (64) is fixedly connected to the top surface of the bracket (61), a spring (68) is sleeved on the double-headed screw (64) between the bracket (61) and the pressing plate (62), and a push rod (67) is further mounted between the bracket (61) and the pressing plate (62).

3. A housing clamp according to claim 2, characterized in that the pressure plate (62) is laterally provided with a handle ball (66), the handle ball (66) being connected to the pressure plate (62) by a connecting rod (65).

4. A housing clamp according to claim 1, characterized in that the auxiliary clamping device (8) comprises two supports (81) fixedly mounted on the welding base (1), a follow-up plate (83) is arranged between the two supports (81), one end of the follow-up plate (83) is hinged with one support (81) through a connecting shaft (82), a connecting rod (86) is rotatably mounted at the top end of the other support (81), the top of the connecting rod (86) penetrates through the other end of the follow-up plate (83) and a second shoulder nut (85) is mounted at the top end of the connecting rod (86) in a threaded manner.

5. A housing clamp according to claim 4, characterized in that the support (81) is provided with a long abutment bolt (87) with a plug (88) arranged inwards, and the follower plate (83) is provided with a short abutment bolt (84) with a plug (88) arranged inwards.

6. A housing clamp according to claim 1, characterized in that the diamond pins (5) and cylindrical pins (4) are each in clearance fit with corresponding pin holes in the workpiece.

7. A shell clamp according to claim 1, characterized in that the welding base (1) is of a three-layer plate structure, the welding base (1) comprising an upper plate, a welding gusset and a lower plate, the lower plate being connected to a horizontal machining table.