Positioning clamp

Abstract

The utility model relates to the technical field of fixing jigs, in particular to a positioning fixture, which comprises a fixture main body and a first clamping part, a guide channel is arranged at the bottom of the fixture main body, a nailing hole is arranged at the end of the fixture main body close to a discharge end, and the bottom end of the nailing hole and one side of the guide channel close to the discharge end are of a conducting structure. The number of the first material clamping pieces is two, one end of each first material clamping piece is a horizontal limiting part, one end of each first material clamping piece is a swing arm part, the two first material clamping pieces are symmetrically and rotatably arranged on the two sides of the discharging end through the swing arm parts, and the horizontal limiting parts are horizontally arranged below the nailing holes. The first material clamping piece and the jig body are of a repeatedly-swinging installation structure through the elastic ring belt, the service life of the positioning clamp is longer than that of an existing positioning clamp, and meanwhile the positioning clamp has the advantage of being not prone to material clamping.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing fixtures, in particular to a positioning fixture. Background Art

[0002] The sleeve nut can be screwed together with the bolt or screw. It is a part used to fasten the board and external components. It is an essential component for all manufacturing machinery. Half of the sleeve nut is a "T"-shaped structure, and there are barbs around it, which can facilitate the embedding and fixation between the sleeve nut and the wooden board. It is widely used in the board installation process of furniture.

[0003] In the prior art, a nut nailing machine is provided according to the structure of the sleeve nut, and its publication number is CN221621407U, a Chinese utility model patent. The structure is provided with a magnetic ring through the bottom end of the punching rod. The magnetic ring is an annular structure and is evenly distributed on the bottom end surface of the punching rod, so that the end of the punching rod in contact with the sleeve nut has strong magnetism. When the punching rod is located in the nut jig and collides with the sleeve nut, the top end of the sleeve nut can be adsorbed on the end of the magnetic ring close to the punching rod. At the same time, the punching rod carries the sleeve nut out of the nut jig. When it is in the air, the sleeve nut can be firmly adsorbed on the bottom of the punching rod and nailed into the wooden board at a uniform position, effectively reducing the deviation of the sleeve nut and improving the accuracy of the nailing position of the sleeve nut.

[0004] At the same time, a nut jig is also provided. A horizontal feeding channel is provided at the end of the nut jig close to the feeding guide rail, and the end of the feeding channel away from the feeding guide rail is connected to the middle of the blanking hole. The end of the punching rod close to the magnetic ring can be moved downward through the blanking hole by driving the cylinder. A number of bevel blocks are provided at the bottom of the blanking hole, and a horizontal stroke groove matching the bevel block is provided on the side wall of the blanking hole. The bevel block can be embedded in the inside of the blanking hole. A reset spring is provided between the end of the bevel block close to the blanking hole and the horizontal stroke groove. The end of the bevel block away from the blanking hole can be extended to the inside of the blanking hole through the reset spring.

[0005] Due to the structure of the existing nut fixture as described above, a horizontally movable bevel block is generally set inside the feeding channel to limit the upper and lower positions. However, this structure is prone to mechanical damage during long-term repeated telescopic movement, causing the nut to get stuck inside the nut fixture. Therefore, in response to these current situations, there is an urgent need to develop a positioning fixture to meet the needs of actual use. Utility Model Content

[0006] The purpose of the utility model is to provide a positioning fixture for solving the defect that the structure of the existing nut fixture is easily damaged by repeated telescopic movement for a long time, causing the nut to get stuck inside the nut fixture.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A positioning fixture comprises a fixture body and a first clamping piece, the bottom of the fixture body is provided with a radially arranged material guide channel, one end of the fixture body is the material feed end, and the other end of the material guide channel is the material discharge end, and the end of the fixture body close to the material discharge end is provided with a vertically opened nail hole, and the bottom end of the nail hole and the side of the material guide channel close to the material discharge end are a conducting structure, the number of the first clamping pieces includes two, one end of the first clamping piece is a horizontal limiting part, and one end of the first clamping piece is a swing arm part, the two first clamping pieces are symmetrically and rotatably arranged on both sides of the material discharge end through the swing arm part, and the horizontal limiting part is horizontally arranged below the nailing hole, one end face of the first clamping piece is provided with a reset boss protruding outward, and an elastic ring band is sleeved between the two reset bosses.

[0009] In the above description, as a further solution, two second clamping parts are also included. The structure of the second clamping parts is consistent with that of the first clamping parts. The two second clamping parts are rotatably arranged on both sides of the jig body through the swing arm part, and the second clamping parts are arranged on the side close to the feeding end.

[0010] In the above description, as a further solution, inwardly recessed air-avoiding grooves are provided on both sides of the fixture body, and a mounting pin is horizontally provided in the middle of the air-avoiding groove. The swing arm parts of the second clamping part and the first clamping part are both provided with mounting holes matching the mounting pin, and the second clamping part and the first clamping part can both swing around the mounting pin as the center.

[0011] In the above description, as a further solution, the height of the horizontal limiting portion of the first clamping member is lower than the height of the horizontal limiting portion of the second clamping member.

[0012] In the above description, as a further solution, the bottom end surface of the fixture body is provided with an upwardly concave material guide trough, and limit plates are provided on both sides of the material guide trough away from the discharge end, and the horizontal limit parts are horizontally arranged on both sides of the material guide trough close to the discharge end. The material guide channel is composed of the material guide trough, the limit plates and the horizontal limit parts to form a "T"-shaped channel.

[0013] In the above description, as a further solution, a plug hole is provided in the middle of the first clamping member, the reset boss and the first clamping member are split structures, and the reset boss is plugged and fixed to the first clamping member through the plug hole.

[0014] In the above description, as a further solution, one end of the reset boss is provided with an embedded ring groove, and the middle part of the elastic ring band is sleeved inside the embedded ring groove.

[0015] In the above description, as a further solution, an outwardly protruding limiting disc is provided at one end of the reset boss away from the embedded ring groove. When the reset boss is plugged into the first clamping piece through the plug-in hole, the limiting disc and the first clamping piece form a limiting structure.

[0016] In the above description, as a further solution, a connecting component for connecting to an external conveyor belt is provided at one end of the fixture body close to the feeding end.

[0017] The beneficial effects produced by the utility model are as follows:

[0018] The positioning fixture of the present application is provided with two swingable first clamping parts on both sides of the fixture body, the horizontal limit part of the first clamping part is horizontally arranged below the nailing hole, and one end face of the first clamping part is provided with a reset boss protruding outward, and an elastic ring band is sleeved between the two reset bosses, so that the nut can form an upper and lower limit structure at the end of the material guide channel under the interference of the horizontal limit part of the first clamping part. At the same time, the first clamping part and the fixture body are installed in a repeatedly swinging installation structure through the elastic ring band, and its service life is longer than that of the existing positioning fixture. At the same time, the positioning fixture of the present application has the characteristic of not being easily stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a positioning fixture described in the utility model;

[0020] Figure 2 This is a schematic diagram of the first perspective structure of a positioning fixture of the present invention when viewed from above;

[0021] Figure 3 This is a schematic diagram of the second perspective structure of a positioning fixture of the present invention when viewed from above;

[0022] Figure 4 This is a schematic diagram of the structural decomposition of a positioning fixture described in the utility model;

[0023] Figure 5 This is a schematic diagram of the bottom structure of a positioning fixture described in the utility model;

[0024] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure along the AA direction;

[0025] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure along the BB direction;

[0026] In the figure: 1- fixture body, 11- feeding end, 12- discharging end, 13- nailing hole, 14- air avoidance groove, 15- material guide groove, 2- material guide channel, 3- first clamping piece, 31- horizontal limiting part, 32- swing arm part, 33- plug-in hole, 4- reset boss, 41- inlaid ring groove, 42- limiting disc, 5- elastic ring belt, 6- mounting pin, 61- mounting hole, 7- second clamping piece, 8- limiting plate, 9- connecting assembly. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0028] See also Figure 1-7 , a positioning fixture specifically implemented, a positioning fixture, including a fixture body 1 and a first clamping piece 3, the bottom of the fixture body 1 is provided with a radially arranged material guide channel 2, one end of the fixture body 1 is the feeding end 11, and the other end of the material guide channel 2 is the discharging end 12, the end of the fixture body 1 near the discharging end 12 is provided with a vertically opened nail hole 13, the bottom end of the nail hole 13 and the side of the material guide channel 2 near the discharging end 12 are a conductive structure, the number of the first clamping piece 3 includes two, the first One end of the clamping piece 3 is a horizontal limiting part 31, and one end of the first clamping piece 3 is a swing arm part 32. The two first clamping pieces 3 are symmetrically and rotatably arranged on both sides of the discharge end 12 through the swing arm part 32, and the horizontal limiting part 31 is horizontally arranged below the nailing hole 13. One end face of the first clamping piece 3 is provided with a reset boss 4 protruding outward, and an elastic ring band 5 is sleeved between the two reset bosses 4. The end of the fixture body 1 close to the feed end 11 is provided with a connecting component 9 for connecting to an external conveyor belt.

[0029] Two swingable first clamping parts 3 are arranged on both sides of the jig body 1, and the horizontal limit part 31 of the first clamping part 3 is horizontally arranged below the nailing hole 13, and one end face of the first clamping part 3 is provided with a reset boss 4 protruding outward, and an elastic ring band 5 is sleeved between the two reset bosses 4, so that the nut can form an upper and lower limit structure at the end of the material guide channel 2 under the interference of the horizontal limit part 31 of the first clamping part 3. At the same time, the first clamping part 3 and the jig body 1 are provided with a repeatedly swinging installation structure through the elastic ring band 5, and its service life is longer than that of the existing positioning fixture. At the same time, a positioning fixture of the present application has the characteristic of not being easy to get stuck.

[0030] The preferred solution also includes two second clamping parts 7, and the structure of the second clamping parts 7 is consistent with that of the first clamping part 3. The two second clamping parts 7 are rotatably arranged on both sides of the fixture body 1 through the swing arm part 32, and the second clamping parts 7 are arranged on the side close to the feed end 11. Since the positioning fixture of the present application needs to meet its high-precision positioning requirements, the size of the first clamping part 3 must match the external nut structure, so in actual use, there will inevitably be very few jamming situations. At this time, the second clamping part 7 and the first clamping part 3 can be flipped outward at the same time to allow the stuck nut to disengage from the guide channel 2.

[0031] In addition, the height of the horizontal limit portion 31 of the first clamping member 3 is lower than the height of the horizontal limit portion 31 of the second clamping member 7. Figure 6 As shown, this structure can form different height differences between the horizontal limit portion 31 at the first clamping piece 3 and the horizontal limit portion 31 at the first clamping piece 3, which is conducive to embedding a separate nut inside the horizontal limit portion 31 of the first clamping piece 3 to achieve precise positioning.

[0032] Specifically, such as Figure 4 As shown, inwardly recessed air-avoiding grooves 14 are provided on both sides of the fixture body 1, and a mounting pin 6 is horizontally provided in the middle of the air-avoiding groove 14. The second clamping member 7 and the swing arm portion 32 of the first clamping member 3 are both provided with mounting holes 61 matching the mounting pin 6, and the second clamping member 7 and the first clamping member 3 can both swing around the mounting pin 6 as the center.

[0033] Specifically, such as Figure 4 As shown, a plug-in hole 33 is provided in the middle of the first clamping piece 3, and the reset boss 4 and the first clamping piece 3 are a split structure, and the reset boss 4 is plugged and fixed with the first clamping piece 3 through the plug-in hole 33, and one end of the reset boss 4 is provided with an inlay ring groove 41, and the middle part of the elastic ring band 5 is sleeved inside the inlay ring groove 41, and the end of the reset boss 4 away from the inlay ring groove 41 is provided with a limiting disc 42 protruding outward, and when the reset boss 4 is plugged with the first clamping piece 3 through the plug-in hole 33, the limiting disc 42 and the first clamping piece 3 form a limiting structure.

[0034] Specifically, such as Figure 2 、 3 As shown in , 6 and 7, the bottom end surface of the fixture body 1 is provided with an upwardly concave material guide groove 15, and the material guide groove 15 is provided with limit plates 8 on both sides away from the discharge end 12. The horizontal limit parts 31 are horizontally arranged on both sides of the material guide groove 15 close to the discharge end 12. The material guide channel 2 is composed of the material guide groove 15, the limit plates 8 and the horizontal limit parts 31 to form a "T"-shaped channel.

[0035] The working process of a positioning fixture is as follows: the connecting component 9 at one end of the fixture body 1 near the feeding end 11 is connected to the external conveyor belt (not shown), and the nuts are transported one by one into the guide channel 2. At the same time, the nuts pass through the limiting plate 8, the horizontal limiting part 31 of the second clamping piece 7 and the horizontal limiting part 31 of the first clamping piece 3 in turn, and move to the bottom of the nailing hole 13. At the same time, the external punching rod (not shown) can pass through the nailing hole 13 and extend to the discharge end 12 of the guide channel 2, squeezing the nut downward so that the first clamping piece 3 is pushed by the horizontal limiting part 31 and swings outward along the mounting pin 6 as the center. At this time, the nut can be separated from a positioning fixture and driven into the corresponding hole in the wood. Then, the first clamping piece 3 drives the reset boss 4 and the first clamping piece 3 to swing inward and reset under the elastic action of the elastic ring band 5, completing the process of positioning, limiting, unloading and resetting the nut by a positioning fixture.

[0036] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A positioning fixture, characterized in that: include: The jig body has a radially arranged material guide channel at the bottom, one end of the jig body is the material feeding end, and the other end of the material guide channel is the material discharging end. A vertically opened nail hole is provided at the end of the jig body near the material discharging end, and the bottom end of the nail hole and the side of the material guide channel near the material discharging end are connected. The first clamping piece, the number of the first clamping piece includes two, one end of the first clamping piece is a horizontal limiting part, and one end of the first clamping piece is a swing arm part. The two first clamping pieces are symmetrically and rotatably arranged on both sides of the discharge end through the swing arm part, and the horizontal limiting part is horizontally arranged below the nailing hole. One end face of the first clamping piece is provided with a reset boss protruding outward, and an elastic ring band is sleeved between the two reset bosses.

2. A positioning fixture according to claim 1, characterized in that: It also includes two second clamping parts, which have the same structure as the first clamping part. The two second clamping parts are rotatably arranged on both sides of the fixture body through the swing arm part, and the second clamping parts are arranged on the side close to the feeding end.

3. A positioning fixture according to claim 2, characterized in that: Both sides of the fixture body are provided with inwardly recessed air avoidance grooves, and a mounting pin is horizontally provided in the middle of the air avoidance groove. The swing arm parts of the second clamping part and the first clamping part are provided with mounting holes matching the mounting pins, and the second clamping part and the first clamping part can both swing around the mounting pin as the center.

4. A positioning fixture according to claim 2, characterized in that: The height of the horizontal limiting portion of the first clamping member is lower than the height of the horizontal limiting portion of the second clamping member.

5. The positioning fixture according to claim 1, characterized in that: The bottom end surface of the fixture body is provided with an upwardly concave material guide trough, and limit plates are provided on both sides of the material guide trough away from the discharge end. The horizontal limit parts are horizontally arranged on both sides of the material guide trough close to the discharge end. The material guide channel is composed of the material guide trough, the limit plates and the horizontal limit parts to form a "T"-shaped channel.

6. A positioning fixture according to any one of claims 1 to 5, characterized in that: A plug-in hole is provided in the middle of the first clamping member. The reset boss and the first clamping member are of a split structure, and the reset boss is plugged and fixed to the first clamping member through the plug-in hole.

7. A positioning fixture according to claim 6, characterized in that: One end of the reset boss is provided with an inlay ring groove, and the middle part of the elastic ring band is sleeved inside the inlay ring groove.

8. A positioning fixture according to claim 7, characterized in that: An end of the reset boss away from the embedded ring groove is provided with an outwardly protruding limiting disc. When the reset boss is plugged into the first clamping piece through the plug-in hole, the limiting disc and the first clamping piece form a limiting structure.

9. A positioning fixture according to any one of claims 1 to 5, characterized in that: One end of the jig body close to the feeding end is provided with a connecting component for connecting to an external conveyor belt.

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