Jig locking structure

Abstract

The utility model discloses a jig locking structure which comprises a first jig plate, a second jig plate and a lock catch mechanism. The lock catch mechanism comprises a lock cylinder, a buckling piece and a first elastic piece connected with the buckling piece, the lock cylinder movably penetrates through the first through hole and the second through hole, the second jig plate is provided with an installation hole used for containing the first elastic piece and the buckling piece, the installation hole is communicated with the second through hole, the lock cylinder is provided with a lock groove, and the buckling piece is clamped into the lock groove to lock the lock cylinder. And the first jig plate and the second jig plate are mutually locked. According to the jig locking structure, the lock cylinder is pressed downwards to apply force to the buckling piece, the buckling piece is clamped into the lock groove to lock the lock cylinder, the first jig plate and the second jig plate are mutually locked, operation is convenient, and the locking effect is good.

Description

Technical Field

[0001] The utility model relates to a jig locking structure and belongs to the technical field of jigs. Background Art

[0002] When multi-station production, assembly and welding of products are carried out, jigs are required to clamp the products, and the mutual locking of jig plates is realized by setting a locking mechanism.

[0003] In related technologies, the locking mechanism includes a knob column, a knob and a guide post. The guide post passes through a plate A and a plate B; the knob is connected with the knob column, and the knob column drives the knob to move in the hole of the plate A. When the knob column rotates, it can be misaligned and interlocked with the stepped hole of the plate B, and when the knob column rotates in the reverse direction, the plate A and the plate B are unlocked from each other. However, due to the repeated actions of the knob, the tolerance of the knob column will gradually become larger, and the knob column is slightly inclined relative to the plate A and the plate B, and it is easy to appear the phenomenon of looseness and weakness. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a jig locking structure which is convenient to operate and has a good locking effect.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A jig locking structure includes:

[0007] A first jig plate, wherein the first jig plate is provided with a first through hole;

[0008] A second jig plate, wherein the second jig plate is provided with a second through hole;

[0009] A lock mechanism, wherein the lock mechanism includes a lock core, a buckle piece and a first elastic piece connected with the buckle piece. The lock core is movably arranged through the first through hole and the second through hole. The second jig plate is provided with an installation hole for accommodating the first elastic piece and the buckle piece, and the installation hole is communicated with the second through hole.

[0010] The lock core is provided with a lock groove, and the buckle piece locks the lock core by being clamped into the lock groove, so that the first jig plate and the second jig plate are locked with each other.

[0011] As a further improved technical scheme of the utility model, the lock core includes a movable rod and a lock block connected with the movable rod, and the lock block is provided with the lock groove.

[0012] As a further improved technical scheme of the utility model, the lock core includes a pressing block, the pressing block is located on one side of the first jig plate facing away from the second jig plate, and the lock block and the pressing block are correspondingly connected to two ends of the movable rod;

[0013] The latch mechanism includes a second elastic member, and two ends of the second elastic member are respectively connected to the first jig plate and the pressing block.

[0014] As a further improved technical solution of the present invention, the lock core includes a movable rod and a pressing block. A lock groove is provided at one end of the movable rod, and the pressing block is connected to the other end of the movable rod. The pressing block is located on a side of the first jig plate facing away from the second jig plate. The latch mechanism includes a second elastic member, and two ends of the second elastic member are respectively connected to the first jig plate and the pressing block.

[0015] As a further improved technical solution of the present invention, the lock core includes a first pin body and a second pin body. The lock block is provided with a first groove, and one end of the movable rod is installed in the first groove. The first pin body connects the movable rod and the lock block. The pressing block is provided with a second groove, and the other end of the movable rod is installed in the second groove. The second pin body connects the movable rod and the pressing block.

[0016] As a further improved technical solution of the present invention, the first through hole is a counterbore. The first jig plate includes a first stepped portion formed in the counterbore. The second groove is a counterbore, and the pressing block includes a second stepped portion formed in the counterbore. The second elastic member is a spring. The second elastic member is sleeved on the movable rod, and two ends of the second elastic member are respectively connected to the first stepped portion and the second stepped portion.

[0017] As a further improved technical solution of the present invention, the second jig plate includes a jig plate body and a fixed seat. The fixed seat is detachably connected to the jig plate body. The jig plate body is provided with the second through hole and a stepped hole. The stepped hole communicates with the second through hole. The fixed seat is installed in the stepped hole. The fixed seat is provided with the installation hole, and an axis of the installation hole is perpendicular to an axis of the second through hole;

[0018] The fixed seat includes a first fixed seat and a second fixed seat. Both the first fixed seat and the second fixed seat include a mating surface. The mating surface is exposed to the second through hole. The mating surface of the first fixed seat faces the mating surface of the second fixed seat. A surface of the lock core provided with the lock groove is a flat straight surface. The mating surface is adapted to the flat straight surface. The first fixed seat and the second fixed seat are both installed with the buckle members. The number of the lock grooves is equal to the number of the buckle members.

[0019] As a further improved technical solution of the present utility model, the locking mechanism includes a cylindrical component, the first elastic member and the buckle member are installed in the cylindrical component. When the first elastic member is in its natural state, at least a part of the buckle member extends out of the cylindrical component. The cylindrical component is installed in the mounting hole, and the buckle member is spherical.

[0020] As a further improved technical solution of the present utility model, the fixture locking structure includes a sleeve, the sleeve is installed in the first through hole, and the lock core is movably inserted through the sleeve.

[0021] As a further improved technical solution of the present utility model, the fixture locking structure includes a jacking mechanism. The jacking mechanism includes a thimble and a jacking plate. The thimble is connected to the jacking plate. The lock core is provided with a positioning groove, the opening of the positioning groove faces the jacking mechanism, and the thimble jacks up the lock core by extending into the positioning groove, so that the buckle member withdraws from the locking groove, releasing the locking between the first fixture plate and the second fixture plate.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] 1. The fixture locking structure provided by the present utility model presses down the lock core, the lock core compresses the second elastic member, the second elastic member presses the first fixture plate, and the lock core exerts a force on the buckle member during the downward movement. The buckle member is pressed into the locking groove of the lock core by compressing the first elastic member to lock the lock core, so that the first fixture plate and the second fixture plate are locked to each other, and the operation is convenient;

[0024] 2. The first elastic member and the buckle member clamp the lock core laterally, so that the first fixture plate and the second fixture plate are locked to each other and are not easy to loosen;

[0025] 3. The first elastic member and the buckle member are both installed in the second fixture plate, which does not affect the appearance of the fixture locking structure; the lock core passes through the first fixture plate and the second fixture plate. The lock core not only cooperates with the buckle member to lock, but also plays a guiding role in the movement of the first fixture plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a perspective view of the fixture locking structure of the present utility model;

[0027] Figure 2 is Figure 1 the front view of;

[0028] Figure 3 is Figure 1 the exploded view of;

[0029] Figure 4 is a perspective sectional view of the fixture locking structure of the present utility model;

[0030] Figure 5 is Figure 3 a three-dimensional schematic diagram of the middle lock block;

[0031] Figure 6 is Figure 3 an exploded schematic diagram of the second jig plate in the middle;

[0032] Figure 7 is a three-dimensional schematic diagram of the lock core in other embodiments. Specific embodiments

[0033] The following will describe in detail the exemplary specific embodiments of the present invention with reference to the accompanying drawings. If there are several specific embodiments, the features in these embodiments can be combined with each other without conflict. When the description involves the accompanying drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The content described in the following exemplary specific embodiments does not represent all embodiments consistent with the present invention; on the contrary, they are only examples of devices, products, and / or methods consistent with some aspects of the present invention recorded in the claims of the present invention.

[0034] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the protection scope of the present invention. The singular forms of "a", "the", or "said" used in the specification and claims of the present invention are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0035] It should be understood that the terms such as "first", "second", and similar terms used in the specification and claims of the present invention do not represent any order, quantity, or importance, but are only used to distinguish the named features. Similarly, the similar terms such as "one" or "a" do not represent a quantity limitation, but mean that there is at least one. Unless otherwise specified, the similar terms such as "front", "rear", "upper", "lower", etc. appearing in the present invention are only for the convenience of description, and are not limited to a specific position or a spatial orientation. The open-ended expression such as "including" or "comprising" means that the elements appearing before "including" or "comprising" cover the elements appearing after "including" or "comprising" and their equivalents, which does not exclude that the elements appearing before "including" or "comprising" may also include other elements. If "several" appears in the present invention, its meaning refers to two or more.

[0036] Please refer to Figures 1 to 7As shown in the figure, the present utility model discloses a fixture locking structure, which includes a first fixture plate 1, a second fixture plate 2 and a locking mechanism 3. The first fixture plate 1 and the second fixture plate 2 are detachably locked to each other through the locking mechanism 3 to clamp a product.

[0037] See Figure 2 , the first fixture plate 1 and the second fixture plate 2 are parallel to each other and arranged at intervals up and down. The first fixture plate 1 is provided with a first through hole 101, and the second fixture plate 2 is provided with a second through hole 201. The first through hole 101 and the second through hole 201 are coaxially arranged.

[0038] See Figure 3 , the locking mechanism 3 includes a lock core 31, a second elastic member 32 connected to the lock core 31, a buckle member 33 and a first elastic member 34 connected to the buckle member 33; the lock core 31 is movably inserted through the first through hole 101 and the second through hole 201. The second elastic member 32 is arranged on the side of the first fixture plate 1 facing away from the second fixture plate 2. During the movement of the lock core 31 towards the second through hole 201, the second elastic member 32 is compressed, so that the second elastic member 32 presses against the first fixture plate 1. The second fixture plate 2 is provided with an installation hole 202 for accommodating the first elastic member 34 and the buckle member 33. The installation hole 202 is communicated with the second through hole 201. A lock groove 310 is provided at one end of the lock core 31 away from the second elastic member 32. The buckle member 33 locks the lock core 31 by being inserted into the lock groove 310, so that the first fixture plate 1 and the second fixture plate 2 are locked to each other. The locking force between the lock core 31 and the buckle member 33 is related to the elastic force of the first elastic member 34. The greater the elastic force of the first elastic member 34, the greater the locking force between the lock core 31 and the buckle member 33.

[0039] In this embodiment, the installation hole 202 is a blind hole. The axis of the installation hole 202 is perpendicular to the axis of the second through hole 201, and the axis of the second elastic member 32 is perpendicular to the axis of the first elastic member 34, so that the buckle member 33 can move in a direction perpendicular to the moving direction of the lock core 31.

[0040] In some embodiments, the second fixture plate 2 is a split structure. See Figure 3 and Figure 6 , the second fixture plate 2 includes a fixture plate body 21 and a fixing seat 22. The fixing seat 22 is detachably connected to the fixture plate body 21. The fixture plate body 21 is provided with a second through hole 201 and a stepped hole 203. The stepped hole 203 is communicated with the second through hole 201. The fixing seat 22 is installed in the stepped hole 203, and the installation hole 202 is arranged on the fixing seat 22. During installation, the first elastic member 34 and the buckle member 33 are sequentially installed on the fixing seat 22, and then the fixing seat 22 together with the buckle member 33 is installed on the fixture plate body 21, which is convenient for assembly and disassembly. Of course, in other embodiments, the second fixture plate 2 is an integral structure, and the second fixture plate 2 is provided with a second through hole 201 and an installation hole 202.

[0041] Specifically, refer to Figure 6 . The fixing base 22 includes a mating surface 221. The mating surface 221 is exposed to the second through hole 201. The surface of the lock core 31 provided with the lock groove 310 is a flat surface, and the mating surface 221 is adapted to the flat surface, that is, the mating surface 221 is also a flat surface. With such a setting, the cooperation between the lock core 31 and the fixing base 22 is closer, which is beneficial to the part of the buckle 33 extending outside the fixing base 22 to be stable in the lock groove 310, realizing the mutual locking of the first jig plate 1 and the second jig plate 2. The fixing base 22 is in a T shape, and the fixing base 22 is connected to the second jig plate 2 by screws.

[0042] In this embodiment, refer to Figure 6 . The fixing base 22 includes a first fixing base 22a and a second fixing base 22b. Both the first fixing base 22a and the second fixing base 22b include a mating surface 221. The mating surface 221 of the first fixing base 22a faces the mating surface 221 of the second fixing base 22b. Buckles 33 are installed on both the first fixing base 22a and the second fixing base 22b, and the number of lock grooves 310 is equal to the number of buckles 33. The lock core 31 is clamped from both sides by two oppositely arranged buckles 33, so that the forces on both sides of the lock core 31 are balanced and the lock core 31 will not shift.

[0043] In some embodiments, refer to Figure 6 . The lock core 31 includes a movable rod 311, a lock block 312 and a pressing block 313. The pressing block 313 is located on the side of the first jig plate 1 facing away from the second jig plate 2. The lock block 312 and the pressing block 313 are correspondingly connected to both ends of the movable rod 311, and both the lock block 312 and the pressing block 313 are detachably connected to the movable rod 311. The lock block 312 is provided with a lock groove 310. Both ends of the second elastic member 32 are respectively connected to the first jig plate 1 and the pressing block 313. The pressing block 313 is equivalent to a button, and a force is applied to the movable rod 311 by pressing the button. Of course, in other embodiments, refer to Figure 7 . The lock core 31 includes a movable rod 311ˋ and a pressing block 313ˋ. The pressing block 313ˋ is located on the side of the first jig plate 1 facing away from the second jig plate 2. One end of the movable rod 311ˋ is provided with a lock groove 310, and the pressing block 313ˋ is connected to the other end of the movable rod 311ˋ. Both ends of the second elastic member 32 are respectively connected to the first jig plate 1 and the pressing block 313ˋ.

[0044] In this embodiment, refer to Figure 3 and Figure 4, the lock core 31 includes a first pin body 314 and a second pin body 315. The lock block 312 is provided with a first groove 3121, and one end of the movable rod 311 is installed in the first groove 3121. The first pin body 314 connects the movable rod 311 and the lock block 312; the pressing block 313 is provided with a second groove 3131, and the other end of the movable rod 311 is installed in the second groove 3131. The second pin body 315 connects the movable rod 311 and the pressing block 313. The detachable connections between the lock block 312 and the pressing block 313 and the movable rod 311 are respectively realized through the first pin body 314 and the second pin body 315.

[0045] Specifically, referring to Figure 4 , the first through hole 101 is a counterbore. The first jig plate 1 includes a first step portion 1011 formed in the counterbore. The second groove 3131 is a counterbore. The pressing block 313 includes a second step portion 3130 formed in the counterbore. The second elastic member 32 is a spring. The second elastic member 32 is sleeved on the movable rod 311, and the two ends of the second elastic member 32 respectively abut and connect to the first step portion 1011 and the second step portion 3130.

[0046] Referring to Figure 3 and Figure 5 , the lock block 312 is a square column. The lock block 312 includes a first side surface 312a, a second side surface 312b and a bottom surface 312c. The first side surface 312a is parallel to the second side surface 312b. Both the first side surface 312a and the second side surface 312b are provided with lock grooves 310.

[0047] Referring to Figure 5 , the lock block 312 includes a guiding groove 3122. The guiding groove 3122 communicates with the corresponding lock groove 310. One of the guiding grooves 3122 is provided in the connection area between the first side surface 312a and the bottom surface 312c, and the other guiding groove 3122 is provided in the connection area between the second side surface 312b and the bottom surface 312c. The groove surface of the guiding groove 3122 is a guiding surface, and the guiding surface is an arc surface. By providing the guiding groove 3122, it is convenient for the buckle member 33 to slide into the lock groove 310.

[0048] Referring to Figure 3 , the lock mechanism 3 further includes a cylindrical member 35. The first elastic member 34 and the buckle member 33 are installed in the cylindrical member 35. When the first elastic member 34 is in the natural state, at least part of the buckle member 33 extends out of the cylindrical member 35. The cylindrical member 35 is installed in the mounting hole 202. The buckle member 33 is spherical, which can reduce the resistance of the lock core 31 moving down / up when the buckle member 33 extends out. By adjusting the length of the movable rod 311, the distance between the first jig plate 1 and the second jig plate 2 is adjusted.

[0049] Referring to Figure 3, the fixture locking structure includes a sleeve 4. The sleeve 4 is installed in the first through hole 101, and the lock core 31 is movably inserted through the sleeve 4. The sleeve 4 has a smooth inner surface to make the up and down movement of the lock core 31 smoother.

[0050] See Figure 2 and Figure 3 , the fixture locking structure includes a jacking mechanism. The jacking mechanism includes a thimble 51 and a jacking plate 52, and the thimble 51 is connected to the jacking plate 52. See Figure 4 , the lock core 31 is provided with a positioning groove 316. The opening of the positioning groove 316 faces the jacking mechanism. The thimble 51 jacks up the lock core 31 by extending into the positioning groove 316, so that the buckle 33 exits the lock groove 310 and releases the locking of the first fixture plate 1 and the second fixture plate 2. Specifically, the head of the thimble 51 is in the shape of a frustum of a cone, and the positioning groove 316 is adapted to the head of the thimble 51. The positioning groove 316 is recessed inward from the bottom surface 312c. In this embodiment, by setting the head in the shape of a frustum of a cone, it is convenient to be inserted into the positioning groove 316.

[0051] The working process of the present utility model: Apply an external force to the pressing block 313 to make the lock core 31 move downward. The lock core 31 enters the second through hole 201 and presses against the buckle 33. The buckle 33 compresses the first elastic member 34. The lock core 31 continues to move downward so that the lock groove 310 is aligned with the mounting hole 202. The buckle 33 slides into the lock groove 310, and the first elastic member 34 rebounds and interlocks with the lock core 31 through the buckle 33; Apply an external force to the jacking plate 52 to make the thimble 51 move upward and snap into the positioning groove 316. The thimble 51 continues to move upward, the buckle 33 slides out of the lock groove 310, and the lock core 31 disengages from the buckle 33 to complete unlocking.

[0052] The above embodiments are only used to illustrate the present utility model and do not limit the technical solutions described in the present utility model. The understanding of the present utility model should be based on those skilled in the art of the relevant technical field. Although this specification has described the present utility model in detail with reference to the above embodiments, those of ordinary skill in the art should understand that those skilled in the relevant technical field can still modify the present utility model or make equivalent substitutions. All technical solutions and their improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. A jig locking structure, characterized in that, Comprising: A first jig plate, the first jig plate being provided with a first through hole; A second jig plate, the second jig plate being provided with a second through hole; A locking mechanism, the locking mechanism comprising a lock core, a buckle member, and a first elastic member connected to the buckle member, the lock core being movably disposed through the first through hole and the second through hole, the second jig plate being provided with a mounting hole for receiving the first elastic member and the buckle member, the mounting hole communicating with the second through hole, The lock core is provided with a lock groove, and the buckle member locks the lock core by snapping into the lock groove, so that the first jig plate and the second jig plate are locked to each other.

2. The jig locking structure according to claim 1, wherein, The lock core comprises a movable rod and a lock block connected to the movable rod, the lock block being provided with the lock groove.

3. The jig locking structure according to claim 2, wherein, The lock core comprises a pressing block, the pressing block being located on a side of the first jig plate facing away from the second jig plate, the lock block and the pressing block being correspondingly connected to two ends of the movable rod; The locking mechanism comprises a second elastic member, two ends of the second elastic member being respectively connected to the first jig plate and the pressing block.

4. The jig locking structure according to claim 1, wherein, The lock core comprises a movable rod and a pressing block, one end of the movable rod being provided with the lock groove, the pressing block being connected to the other end of the movable rod, the pressing block being located on a side of the first jig plate facing away from the second jig plate, the locking mechanism comprising a second elastic member, two ends of the second elastic member being respectively connected to the first jig plate and the pressing block.

5. The jig locking structure according to claim 3, wherein, The lock core comprises a first pin body and a second pin body, the lock block being provided with a first groove, one end of the movable rod being mounted in the first groove, the first pin body connecting the movable rod and the lock block, the pressing block being provided with a second groove, the other end of the movable rod being mounted in the second groove, the second pin body connecting the movable rod and the pressing block.

6. The jig locking structure according to claim 5, wherein, The first through hole is a counterbore, the first jig plate comprises a first stepped portion formed in the counterbore, the second groove is a counterbore, the pressing block comprises a second stepped portion formed in the counterbore, the second elastic member is a spring, the second elastic member is sleeved on the movable rod, and two ends of the second elastic member are respectively connected to the first stepped portion and the second stepped portion.

7. The jig locking structure according to claim 1, wherein The second jig plate comprises a jig plate body and a fixing seat, the fixing seat being detachably connected to the jig plate body, the jig plate body being provided with the second through hole and a stepped hole, the stepped hole communicating with the second through hole, the fixing seat being mounted in the stepped hole, the fixing seat being provided with the mounting hole, and an axis of the mounting hole being perpendicular to an axis of the second through hole; The fixing seat comprises a first fixing seat and a second fixing seat, both the first fixing seat and the second fixing seat comprise mating surfaces, the mating surfaces being exposed in the second through hole, the mating surface of the first fixing seat being opposite to the mating surface of the second fixing seat, a surface of the lock core provided with the lock groove being a flat straight surface, the mating surface being adapted to the flat straight surface, the first fixing seat and the second fixing seat being both mounted with the buckle member, and a number of the lock grooves being equal to a number of the buckle members.

8. The jig locking structure according to claim 7, characterized in that, The buckle mechanism includes a cylindrical component, the first elastic member and the buckle member are installed on the cylindrical component. When the first elastic member is in its natural state, at least a part of the buckle member extends out of the cylindrical component. The cylindrical component is installed in the mounting hole, and the buckle member is spherical.

9. The jig locking structure according to claim 1, wherein, The fixture locking structure includes a sleeve, the sleeve is installed in the first through hole, and the lock core is movably inserted through the sleeve.

10. The jig locking structure according to any one of claims 1 to 9, characterized in that, The fixture locking structure includes a jacking mechanism. The jacking mechanism includes a thimble and a jacking plate. The thimble is connected to the jacking plate. The lock core is provided with a positioning groove, and the opening of the positioning groove faces the jacking mechanism. The thimble jacks up the lock core by extending into the positioning groove, so that the buckle member withdraws from the locking groove and releases the locking between the first fixture plate and the second fixture plate.

Images