A lateral locking device for T-grooves and method of use

Abstract

A kind of lateral locking device for T-shaped keyway and method for using, the locking device contains locking seat, locking block, the locking seat is an integral structure matched with T-shaped keyway, the upper portion of locking seat has sunken platform in front end, first threaded hole is equipped on sunken platform, the upper portion of locking seat is cantilever block structure in rear end, second threaded hole is equipped on cantilever block, the second threaded hole has slot, the locking block is a parallelogram block structure, it is equipped with the connecting hole matched with first threaded hole, workpiece is placed on machining platform, the front end of workpiece is abutted on abutment, the locking seat of locking device is placed in T-shaped keyway in rear end of workpiece, second bolt is rotated into second threaded hole, so that the both sides of cantilever block are expanded and pressed on the groove wall of T-shaped keyway, realize the position locking of locking device relative to T-shaped keyway;Tighten first bolt, so that the front end surface of locking block slides along the rear end surface of workpiece and is laterally compressed the rear end surface of workpiece.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mechanical manufacturing equipment, and particularly relates to a lateral locking device for a T-shaped key groove and a use method. BACKGROUND

[0002] At present, the part clamping mode known in the art is a conventional pressing plate and bolt pressing mode, and a part is rarely positioned or clamped by a machine tool high-precision T-shaped part, and a scheme of clamping the part by penetrating a bolt in a T-shaped groove and then using a pressing plate is mostly adopted. The above clamping mode has the defect of low clamping efficiency.

[0003] Aircraft structure production is a typical multi-variety and small-batch production, and product lines are frequently changed in the production process. If a special tool is used to clamp the part, the clamping efficiency is high, but the tool lacks flexibility, and has the defects of high manufacturing cost, long production cycle and occupied space.

[0004] The pressing plate clamping is a typical six-point non-complete positioning clamping, so in the machining process, the part is prone to displacement and causes scrap. If the T-shaped key groove high-efficiency lateral locking device is adopted, and the device is a flexible device, the device can be flexibly arranged at any position of the precision T-shaped key groove as required, and then high-efficiency locking is performed, so that the precision T-shaped groove of the machine tool itself is effectively utilized. SUMMARY

[0005] The application aims to provide a lateral locking device for a T-shaped key groove and a use method. The T-shaped groove of the machine tool itself is effectively utilized to laterally lock the workpiece.

[0006] A lateral locking device for a T-shaped key groove, characterized in that the locking device comprises a locking seat, a locking block, a first bolt and a second bolt, the locking seat is an integral structure matched with the T-shaped key groove, the upper front end of the locking seat has a sunken table, the sunken table is provided with a first threaded hole, the upper rear end of the locking seat is a cantilever block structure, there is a slot-shaped gap between the cantilever block and the lower rear end of the locking seat, the cantilever block is provided with a second threaded hole, the second threaded hole is provided with a split groove, the hole opening of the second threaded hole is in a trumpet shape, the locking block is a parallelogram block structure, the locking block is provided with a connecting hole matched with the first threaded hole, the first bolt connects the locking block and the first threaded hole, and the second bolt is matched with the second threaded hole.

[0007] The lateral locking device for the T-shaped key groove, characterized in that the front end face and the rear end face of the locking block are mutually parallel inclined faces.

[0008] The lateral locking device for the T-shaped key groove, characterized in that the connecting hole on the locking block is an oblong hole, and the axial direction of the oblong hole is consistent with the axial direction of the T-shaped key groove.

[0009] The lateral locking device for the T-shaped key groove is characterized in that the split groove on the second threaded hole longitudinally penetrates the whole height of the second threaded hole and transversely passes through the center of the second threaded hole.

[0010] The lateral locking device for the T-shaped key groove is characterized in that the split groove on the second threaded hole longitudinally penetrates the whole height of the second threaded hole and transversely passes through the center of the second threaded hole.

[0011] The lateral locking device for the T-shaped key groove is characterized in that the split groove on the second threaded hole longitudinally penetrates the whole height of the second threaded hole and transversely passes through the center of the second threaded hole.

[0012] 2) The locking seat is installed in the positioning and locking flexible base, realizing flexible adjustment and quick locking of the fixed position of the positioning and locking flexible base in the machine tool.

[0013] The application will be further described in detail below in combination with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] The application will be further described in detail below in combination with the accompanying drawings.

[0015] Figure 1 It is a structural schematic diagram of the lateral locking device.

[0016] Figure 2 It is a structural schematic diagram of the locking seat.

[0017] Figure 3 It is a structural schematic diagram of the locking block.

[0018] Figure 4 It is a schematic diagram of the connection relationship between the lateral locking device and the T-shaped groove of the machine tool.

[0019] Figure 5 It is a schematic diagram of the use state of the lateral locking device.

[0020] Figure 6 It is a schematic diagram of the loose and close state of the locking block and the workpiece.

[0021] Numbering in the figure: 1 T-shaped keyway, 2 locking seat, 3 locking block, 4 connecting hole, 5 first threaded hole, 6 machine tool platform, 7 first bolt, 8 second bolt, 9 second threaded hole, 10 split slot, 11 slot gap, 12 inclined surface, 13 fence, 14 workpiece, 15 cantilever block. DETAILED DESCRIPTION

[0022] The existing part clamping is all through bolted pressing plate clamping part excess area, but this clamping method is six point non-complete positioning, which makes the part displacement during machining. The present application provides a novel structure and convenient part efficient lateral locking device to solve the part displacement during machining.

[0023] The lateral locking device for machine tool T-shaped keyway 1 of the present application contains locking seat 2, locking block 3, first bolt 7 and second bolt 8. The locking seat 2 is a whole structure matched with the T-shaped keyway 1. The upper front end of the locking seat 2 has a sunken platform, and the first threaded hole 5 is arranged on the sunken platform. The upper rear end of the locking seat 2 is a cantilever block 15 structure. There is a slot gap 11 between the cantilever block 15 and the lower rear end of the locking seat 2. The second threaded hole 9 is arranged on the cantilever block 15. The second threaded hole 9 has a split slot 10 longitudinally through the whole second threaded hole height and transversely through the second threaded hole center. The hole of the second threaded hole 9 is trumpet-shaped. The locking block 3 is a parallelogram block structure, and the front end surface and the rear end surface are mutually parallel inclined surfaces 12. The locking block 3 is provided with a connecting hole 4 matched with the first threaded hole. The connecting hole 4 is an oblong hole, and the axial direction of the oblong hole is consistent with the axial direction of the T-shaped keyway. The first bolt 7 connects the locking block 3 with the first threaded hole 5, and the second bolt 8 is matched with the second threaded hole 9.

[0024] The workpiece 14 is clamped on the T-shaped keyway 1 of the machining platform by using the lateral locking device and the fence 13. The fence 13 is fixed on the T-shaped keyway 1 of the machining platform. The workpiece 14 is placed on the machining platform, and the front end of the workpiece 14 is abutted on the fence 13. The locking seat 2 of the locking device is placed in the T-shaped keyway 1 at the rear end of the workpiece 14. The locking block 3 is connected in the first threaded hole 5 through the first bolt 7 and the connecting hole 4, so that the front end inclined surface 12 of the locking block 3 is in close contact with the rear end surface of the workpiece 14. Then the second bolt 8 is screwed into the second threaded hole 9, and the split slot 10 of the second threaded hole 9 is opened, so that the both sides of the cantilever block 15 are expanded outward and pressed on the groove wall of the T-shaped keyway 1, realizing the position locking of the locking device relative to the T-shaped keyway 1. Finally, the first bolt 7 is tightened, so that the front end inclined surface of the locking block 3 slides downward along the rear end surface of the workpiece 14 and laterally presses the rear end surface of the workpiece 14. Thus, a flexible clamping system is formed, which does not need to be adjusted during part line change machining, and the flexible lateral of the part during machining is solved.

[0025] The cantilever block 15 on the locking seat 2 is expanded from the position of the split slot 10 during the downward tightening of the second bolt 2, thus generating an expansion force to lock the locking seat 2 in the T-shaped slot.

[0026] The inclined surface 12 on the locking block 3 is in contact with the side surface of the workpiece 14 in a relaxed state, and during operation, it is subjected to the action of the first bolt 7, and the contact with the workpiece 14 changes from surface contact to line contact, thereby laterally clamping the workpiece.

Claims

1. A side locking device for T-keyway, characterized in that, The locking device comprises a locking seat, a locking block, a first bolt and a second bolt, the locking seat is an integral structure matched with a T-shaped key groove, the upper front end of the locking seat has a sunken platform, the sunken platform is provided with a first threaded hole, the upper rear end of the locking seat is a cantilever block structure, there is a slot-shaped gap between the cantilever block and the lower rear end of the locking seat, the cantilever block is provided with a second threaded hole, the second threaded hole is provided with a split groove, the hole mouth of the second threaded hole is trumpet-shaped, the locking block is a parallelogram block structure, the locking block is provided with a connecting hole matched with the first threaded hole, the first bolt connects the locking block and the first threaded hole, the second bolt is matched with the second threaded hole, the front end face and the rear end face of the locking block are mutually parallel inclined faces, the connecting hole of the locking block is an oblong hole, the axial direction of the oblong hole is consistent with the axial direction of the T-shaped key groove, the split groove of the second threaded hole longitudinally penetrates the whole height of the second threaded hole and transversely passes through the center of the second threaded hole.

2. The method for using the lateral locking device for T-shaped keyway according to claim 1, wherein the lateral locking device and the backstop are used to clamp the workpiece on the T-shaped keyway of the machining platform, characterized in that The method comprises the following steps: 1) fixing the rest bar on the T-shaped key groove of the machining platform, placing the workpiece on the machining platform, and abutting the front end of the workpiece against the rest bar, 2) placing the locking seat of the locking device in the T-shaped key groove at the rear end of the workpiece, connecting the locking block in the first threaded hole through the first bolt, and making the front end face of the locking block abut against the rear end face of the workpiece, 3) rotating the second bolt into the second threaded hole, opening the split groove of the second threaded hole, and expanding the two sides of the cantilever block outward to press against the groove wall of the T-shaped key groove, thereby realizing the position locking of the locking device relative to the T-shaped key groove, 4) tightening the first bolt, and making the front end face of the locking block slide downward along the rear end face of the workpiece and laterally press against the rear end face of the workpiece.

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