Efficient self-locking clamping jig

Abstract

The utility model discloses an efficient self-locking clamping jig, and aims to provide the efficient self-locking clamping jig which is efficient and rapid to operate, capable of automatically locking, unlocking and discharging, high in structural connection stability and operation precision and capable of improving the machining progress and efficiency. The device comprises a base, side limiting seats and a middle limiting seat are detachably connected to the upper end face of the base, a driving assembly is connected into the base, the side limiting seats are symmetrically arranged with the middle limiting seat as a central axis, a plurality of limiting grooves are formed in the side limiting seats and the middle limiting seat, and clamping blocks are arranged between the limiting grooves of the side limiting seats and the middle limiting seat. The clamping blocks are slidably connected with driving blocks, the driving blocks are detachably connected with the driving assemblies, and the clamping blocks are movably connected with the base through the driving assemblies. The utility model has the beneficial effects that batch locking and unlocking of workpieces are realized; operation is stable and efficient, and the practicability of the jig is improved; the convenience of structure maintenance by assembly disassembly is improved; the structural sealing strength is improved; and the pneumatic balance and self-locking and unlocking synchronization rate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamping jigs, and particularly to an efficient self-locking clamping jig. BACKGROUND

[0002] During the machining process of a workpiece, a related jig is used for clamping and positioning and locking. The jig is one of the auxiliary tools used for a large number of repeated operations in die tools. Automatic locking is one of the commonly used structures in the jig type. The stability of the workpiece during the machining process is ensured by locking the workpiece. Therefore, the stability and precision of the workpiece clamping and the working efficiency of the jig are crucial.

[0003] Chinese patent authorization announcement number: CN 216327873 U, authorization announcement day is April 19, 2022, the utility model relates to a kind of automatic locking jigs for metal workpiece machining, including jig main body, the upper surface of jig main body is equipped with slide base, and the outer side of slide base is slidably connected with mobile base, the inside of slide base is provided with two-way screw rod, the upper of mobile base is provided with push plate, the both sides of jig main body are equipped with side plate, and installation rod is inserted in the middle of side plate, and the side of push plate is threadedly connected with fixed screw rod. The technical scheme has the following disadvantages: 1. the jig needs four-way operation operation locking, so that the jig is not suitable for batch clamping workpiece, and the clamping efficiency is reduced;2. structure is complex, locking action is complicated, and automatic discharge is not possible, so that the jig is difficult to batch processing, and the machining efficiency is affected.

[0004] In summary: the locking jig has the disadvantages of complicated operation, difficult to quickly and automatically lock and unlock and discharge, and affecting the batch processing of workpieces. UTILITY MODEL CONTENTS

[0005] The utility model is to overcome the disadvantages of the prior art, i.e. the locking jig is complicated to operate, difficult to quickly and automatically lock and unlock and discharge, and affects the batch processing of workpieces, and provides an efficient self-locking clamping jig that is efficient and quick to operate, automatically locks and unlocks and discharges, has stable structure connection, high working precision, improves the machining progress and efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] An efficient self-locking clamping jig, comprising a base, a side limiting seat and a middle limiting seat detachably connected to the upper end surface of the base, a driving assembly connected in the base, the side limiting seat symmetrically arranged with the middle limiting seat as the center axis, the side limiting seat and the middle limiting seat each provided with a plurality of limiting grooves, a clamping block provided between each limiting groove of the side limiting seat and the middle limiting seat, the clamping block slidably connected with a driving block, the driving block detachably connected with the driving assembly, and the clamping block movably connected with the base through the driving assembly.

[0008] The edge limit seat and the middle limit seat are connected to the upper end face of the base and can be detached and maintained, the driving assembly is installed in the base to drive the driving blocks on the base to drive the clamping blocks on the side to move, the middle of the base is connected with the middle limit seat and the two sides are connected with the edge limit seat, the edge limit seat is radially arranged with the middle limit seat as the center of symmetry, the limit grooves of the edge limit seat and the middle limit seat are oppositely arranged, so that the workpieces can be placed and positioned in batches, and the driving assembly between the edge limit seat and the middle limit seat drives the clamping blocks on the base, and the synchronous clamping and releasing of the workpieces are realized through the movement of the clamping blocks towards the limit grooves. The effect of realizing batch workpiece locking and unlocking, stable operation and high efficiency and improving the practicality of the jig is achieved.

[0009] As preferred, the side edges of the edge limit seat and the middle limit seat are connected with the pressing blocks, one side of the clamping block is provided with a guide inclined groove I, the driving block is connected with a guide inclined groove II, the clamping block and the driving block are mutually clamped through the guide inclined groove I and the guide inclined groove II, and the other side of the clamping block is slidably connected with the pressing block. The opposite side plates in the edge limit seat and the middle limit seat are both connected with the pressing blocks, and the pressing blocks and the edge limit seat or the middle limit seat are integrated structures, so as to guarantee the structural integrity and strength; the side edges of the driving block and the side edges of the clamping block are mutually engaged through the obliquely arranged guide inclined groove I and the guide inclined groove II to form an OK clamp structure, so as to simultaneously control the horizontal movement of the clamping blocks on the two sides through the vertical up-down movement of the driving block, and then realize the clamping and unlocking of the workpieces in the limit grooves, and the other side of the pressing block abuts against the clamping block to enable the clamping block to move horizontally along the pressing block. The effect of realizing rapid locking and unlocking of the jig and improving the operation stability is achieved.

[0010] As preferred, the base is provided with a movable groove, the driving assembly includes a piston and a fixed screw, the piston is slidably connected with the movable groove, one end of the piston is provided with a connecting groove, the driving block is provided with a connecting hole, the fixed screw passes through the connecting hole and is threadedly connected with the connecting groove, and the groove wall of the movable groove is provided with an air inlet hole. The movable groove is opened in the lower end face of the base, the piston in the driving assembly is connected in the movable groove and can slide up and down, a connecting groove is opened at the port of one end of the piston, the driving block is connected with the connecting groove of the piston through the fixed screw on the connecting hole, the driving block and the fixed screw are fixed through thread connection, which is convenient for assembly and disassembly, replacement and maintenance, and the air inlet hole is used for introducing gas to drive the piston to move in the movable groove, and then synchronously move the driving block to move the clamping block. The effect of improving the convenience of component disassembly for structure maintenance, structure connection and operation stability is achieved.

[0011] As preferred, the inner wall of the movable groove is provided with a defined groove one, the piston piece is provided with a defined groove two, the horizontal position of the air inlet hole is located between the defined groove one and the defined groove two, the defined groove one is sleeved with a sealing ring one, and the defined groove two is sleeved with a sealing ring two.

[0012] As preferred, the other end of the piston piece is connected with a reset spring, the notch of the movable groove is connected with a tail end cover, the reset spring is connected with the tail end cover, the tail end cover is provided with a defined groove three, the defined groove three is sleeved with a sealing ring three, and the sealing ring three is attached to the groove wall of the movable groove.

[0013] As preferred, the driving assembly comprises a connecting valve, the base is provided with a gas inlet hole and a communication channel one, the communication channel one is communicated with each air inlet hole, one end of the gas inlet hole is communicated with the communication channel one, and the other end of the gas inlet hole is connected with the connecting valve.

[0014] As preferred, the base is provided with a communication channel two, the communication channel two is communicated with the communication channel one, the lower end surface of the base is provided with a connecting groove, the communication channel two is communicated with the connecting groove, and the connecting groove is connected with a pressure gauge.

[0015] The beneficial effects of the utility model are as follows: batch workpiece locking and unlocking are realized; operation stability and high efficiency are realized, thereby improving the practicality of the tool; the convenience of component disassembly for structure maintenance is improved; self-locking stability and structure sealing strength are improved; pneumatic balance and self-locking unlocking synchronization rate are improved; and the convenience and safety of tool use are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the perspective view of the utility model;

[0017] Figure 2 is a bottom view of Figure 1 ;

[0018] Figure 3 is a bottom view of Figure 1 ;

[0019] Figure 4 is a sectional view of A-A in Figure 2 ;

[0020] Figure 5 is a sectional view of B-B in Figure 2 .

[0021] In the figure: 1. base, 2. pressure gauge, 3. driving assembly, 4. side limit seat, 5. middle limit seat, 6. limit slot, 7. clamping block, 8. driving block, 9. pressing block, 10. guide inclined slot 1, 11. guide inclined slot 2, 12. movable slot, 13. piston piece, 14. fixed screw, 15. connecting slot, 16. connecting hole, 17. air inlet hole, 18. limit slot 1, 19. limit slot 2, 20. sealing ring 1, 21. sealing ring 2, 22. return spring, 23. tail end cover, 24. limit slot 3, 25. sealing ring 3, 26. communication passage 1, 27. air outlet hole, 28. connecting valve, 29. communication passage 2, 30. connecting groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The following description of at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of a feature, step, operation, device, component and / or combination thereof.

[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “below” other elements or features would be positioned “up” other elements or features. Thus, the exemplary term “down” can include both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0026] Example 1:

[0027] like Figures 1-3 As shown, a high-efficiency self-locking clamping fixture includes a base 1 and a mounting base 2. The upper end face of the base 1 is detachably connected to the mounting base 2. The base 1 is connected to a drive assembly 3. The mounting base 2 is detachably connected to a side limit seat 4 and a middle limit seat 5. The side limit seat 4 is symmetrically arranged about the middle limit seat 5 as the central axis. Both the side limit seat 4 and the middle limit seat 5 are provided with several limit grooves 6. Each limit groove 6 of the side limit seat 4 and the middle limit seat 5 is provided with a clamping block 7. The clamping block 7 is slidably connected to a drive block 8. The drive block 8 is detachably connected to the drive assembly 3. The clamping block 7 is movably connected to the mounting base 2 through the drive assembly 3.

[0028] like Figure 2As shown, the side edges of the side limit seat 4 and the middle limit seat 5 are connected with the pressing block 9, one side of the clamping block 7 is provided with a guide inclined slot one 10, the driving block 8 is connected with a guide inclined slot two 11, the clamping block 7 and the driving block 8 are clamped with each other through the guide inclined slot one 10 and the guide inclined slot two 11, and the other side of the clamping block 7 is slidably connected with the pressing block 9.

[0029] As shown in Figure 1 , 4 , the mounting seat 2 is provided with a movable slot 12, the driving assembly 3 includes a piston piece 13 and a fixed screw rod 14, the piston piece 13 is slidably connected with the movable slot 12, one end of the piston piece 13 is provided with a connecting slot 15, the driving block 8 is provided with a connecting hole 16, the fixed screw rod 14 passes through the connecting hole 16 and is threadedly connected with the connecting slot 15, and the slot wall of the movable slot 12 is provided with an air inlet hole 17.

[0030] As shown in Figure 4 , the inner wall of the movable slot 12 is provided with a limiting slot one 18, the piston piece 13 is provided with a limiting slot two 19, and the horizontal position of the air inlet hole 17 is located between the limiting slot one 18 and the limiting slot two 19; the limiting slot one 18 is sleeved with a sealing ring one 20, and the limiting slot two 19 is sleeved with a sealing ring two 21.

[0031] As shown in Figure 3 , 4 , the other end of the piston piece 13 is connected with a return spring 22, the slot opening of the movable slot 12 is connected with a tail end cover 23, the return spring 22 is connected with the tail end cover 23, the tail end cover 23 is provided with a limiting slot three 24, the limiting slot three 24 is sleeved with a sealing ring three 25, and the sealing ring three 25 is attached to the slot wall of the movable slot 12.

[0032] As shown in Figure 4 , 5 , the base 1 is provided with a gas conveying hole 27 and a communication channel one 26, the communication channel one 26 is communicated with each air inlet hole 17, one end of the gas conveying hole 27 is communicated with the communication channel one 26, and the other end of the gas conveying hole 27 is connected with a connecting valve 28. The base 1 is provided with a communication channel two 29, the communication channel two 29 is communicated with the communication channel one 26, the lower end surface of the base 1 is provided with a connecting recess 30, the communication channel two 29 is communicated with the connecting recess 30, and the connecting recess 30 is connected with a pressure gauge 31.

[0033] As shown in Figures 1-5 , the movable slot 12 is provided with a gas discharge hole (not shown in the figure), the gas discharge hole is located between the sealing ring two 21 and the sealing ring three 25, and the gas discharge hole is communicated with the surface of the base 1, so that the movable slot 12 can import and export gas on one side of the return spring 22, so as to ensure that the piston piece 13 moves smoothly in the movable slot 12.

[0034] The valve 28 is connected with the base 1, and a pneumatic valve structure is arranged outside the base 1 to drive self-locking by air inlet. The side of the base 1 is connected with an air outlet hole for connecting the air outlet pipeline of the pneumatic valve structure, and the air outlet hole is connected with the communication passage one 26 and the communication passage two 29.

[0035] The side limiting seat 4 and the middle limiting seat 5 are fixed on the base 1 by bolts, which is convenient for assembly and disassembly and maintenance.

[0036] In use, the workpiece is placed in each limiting groove 6, the air inlet hole 17 of the movable groove 12 is inhaled by starting the pneumatic valve, and then the piston 13 moves backward to compress the return spring 22, and when each driving block 8 moves, the clamping blocks 7 on both sides move towards the workpiece, and then the workpiece on the side limiting seat 4 and the middle limiting seat 5 is locked at the same time to realize self-locking. When the workpiece is discharged, the air outlet hole 17 of the movable groove is discharged by the pneumatic valve, so that the piston 13 and the return spring 22 control the driving block 8 to rise back to the original position, and then the clamping blocks 7 are relaxed to unlock the workpiece, so that the clamping jig can complete synchronous discharge of each workpiece.

[0037] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. A high efficient self-locking fixture, characterized in that, The utility model provides a kind of automatic door and window closing device, including base (1), the upper end surface of the base (1) is detachably connected with edge limit seat (4) and middle limit seat (5), driving assembly (3) is connected in the base (1), the edge limit seat (4) is arranged with middle limit seat (5) as central axis symmetry, the edge limit seat (4) and middle limit seat (5) are equipped with several limit grooves (6), each limit groove (6) between the edge limit seat (4) and middle limit seat (5) is equipped with clamping block (7), driving block (8) is slidably connected with the clamping block (7), the driving block (8) is detachably connected with driving assembly (3), the clamping block (7) is movably connected with base (1) by driving assembly (3).

2. The high efficiency self-locking fixture according to claim 1, wherein, The side of the edge limit seat (4) and middle limit seat (5) is connected with pressure block (9), one side of the clamping block (7) is equipped with guide chute one (10), the driving block (8) is connected with guide chute two (11), the clamping block (7) and the driving block (8) are mutually clamped through guide chute one (10) and guide chute two (11), the other side of the clamping block (7) is slidably connected with pressure block (9).

3. The high efficiency self-locking fixture of claim 1, wherein, The base (1) is equipped with movable slot (12), the driving assembly (3) includes piston piece (13) and fixed screw rod (14), the piston piece (13) is slidably connected with movable slot (12), one end of the piston piece (13) is equipped with connecting groove (15), the driving block (8) is equipped with connecting hole (16), the fixed screw rod (14) is threadedly connected with connecting groove (15) by passing through connecting hole (16), the slot wall of the movable slot (12) is equipped with air inlet hole (17).

4. The high efficiency self-locking fixture of claim 3, wherein, The inner wall of the movable slot (12) is equipped with limit groove one (18), the piston piece (13) is equipped with limit groove two (19), the horizontal position of the air inlet hole (17) is arranged between limit groove one (18) and limit groove two (19), limit groove one (18) is sleeved with sealing ring one (20), limit groove two (19) is sleeved with sealing ring two (21).

5. The high efficiency self-locking fixture of claim 4, wherein, The other end of the piston piece (13) is connected with return spring (22), the slot opening of the movable slot (12) is connected with tail end cover (23), the return spring (22) is connected with tail end cover (23), the tail end cover (23) is equipped with limit groove three (24), limit groove three (24) is sleeved with sealing ring three (25), and the sealing ring three (25) is attached to the slot wall of the movable slot (12).

6. The high efficiency self-locking fixture of claim 1, wherein The driving assembly (3) includes connecting valve (28), the base (1) is equipped with gas delivery hole (27) and communication channel one (26), the communication channel one (26) is communicated with each air inlet hole (17), one end of the gas delivery hole (27) is communicated with the communication channel one (26), and the other end of the gas delivery hole (27) is connected with the connecting valve (28).

7. The high efficiency self-locking fixture of claim 6, wherein, The base (1) is internally provided with a communication channel two (29), the communication channel two (29) is communicated with the communication channel one (26), the lower end surface of the base (1) is provided with a connecting groove (30), the communication channel two (29) is communicated with the connecting groove (30), the connecting groove (30) is connected with the pressure gauge (2).

Images