Riveting tool for straight needle

By using a motor-driven riveting fixture, the problems of adjustment difficulties and low pressure regulation accuracy caused by the high speed of pneumatic riveting are solved, enabling convenient adjustment and precise riveting of straight needles, and improving the yield and force control.

CN223603358UActive Publication Date: 2025-11-28WUHAN BEIXIU BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423200901.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-11-28
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

The existing straight pin riveting fixture has a high pneumatic working speed, which makes it impossible to adjust during the installation process, and the pressure adjustment accuracy is low, which affects the yield.

Method used

The riveting fixture driven by a motor is designed to drive the needle clamping block through a power gear and an auxiliary gear. Combined with the design of the gear and the toothed rod of the gear, the motor-driven riveting fixture features an adjustable clamping structure and a calibration mechanism, which enables precise positioning and force control of straight needles.

Benefits of technology

It enables convenient adjustment and precise riveting of straight needles, improving yield and force control accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of straight needle riveting, and discloses a straight needle riveting tool which comprises a bottom plate, a motor is fixedly connected to the left end of the rear side of the top of the bottom plate, the output end of the motor is fixedly connected with a power gear, the rear side of the bottom of the bottom plate is fixedly connected with a fixing box, and the fixing box is fixedly connected with a motor. An auxiliary gear is rotatably connected to the lower middle portion of the inner side of the fixing box, tooth groove rods are connected to the adjacent sides of the power gear and the auxiliary gear in a meshed mode, two sliding rods are fixedly connected to the middle of the top wall of the bottom plate at equal intervals, and needle clamping blocks are slidably connected to the tops of the two sliding rods; and the front side of the top of the bottom plate is fixedly connected with a riveting block. According to the straight needle riveting device, the motor drives the tooth groove rod to push forwards through the power gear and the auxiliary gear, the needle clamping block is pushed to the riveting block through the cooperation of the tooth groove rod and the sliding rod, the motor can be stopped at any time in the process to adjust the straight needle, and therefore the effect of conveniently adjusting the straight needle is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to straight needle riveting technical field especially relates to a riveting frock of straight needle. BACKGROUND

[0002] Straight needle is a kind of slender and straight metal needle object, has higher rigidity and certain toughness, its material is stainless steel and metal alloy, to ensure good corrosion resistance and mechanical properties, the surface of straight needle is generally smooth, diameter is relatively uniform, length has some differences according to specific use, in medical field, can play a role in some minimally invasive surgical instruments or suture auxiliary tools.

[0003] The riveting frock of straight needle is mainly composed of base, positioning clamp, stamping mechanism and riveting die, the base provides stable operation platform as the basis support of the whole frock, the positioning clamp accurately fixes straight needle and the workpiece to be riveted, its unique design can adapt to the size requirement of different specifications straight needle and workpiece, through adjustable clamping structure, the accuracy and stability of the relative position of the two in the riveting process are ensured, the stamping mechanism is the power source, can adopt pneumatic, hydraulic and electric driving mode, powerful pressure is transmitted to the riveting die, the riveting frock of the previous straight needle relies on artificial knocking mode to install straight needle into connecting rod, this mode is easy to damage straight needle and has low yield, but the riveting frock of the existing straight needle relies on pneumatic mode to install straight needle, so as to save labor and improve yield, but the driving speed of pneumatic riveting frock is fast, leading to unable to adjust in the installation process of straight needle, and the pressure regulation accuracy is relatively low. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a riveting frock of straight needle, aims at improving the problem in prior art that the working speed of pneumatic is fast, leading to unable to adjust in the installation process of straight needle, and the pressure regulation accuracy is relatively low.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: a riveting frock of straight needle, including bottom plate, the top rear side left end of bottom plate is fixedly connected with motor, the output of motor is fixedly connected with power gear, the bottom rear side of bottom plate is fixedly connected with fixed box, the inside middle lower part of fixed box is rotatably connected with auxiliary gear, the adjacent side of power gear and auxiliary gear is all engagedly connected with tooth groove rod, the top wall middle part of bottom plate is fixedly connected with two slide rods at equal intervals, the top of two slide rods is all slidably connected with needle clamping block, the top front side of bottom plate is fixedly connected with riveting block, the inside of needle clamping block is installed with adjustable clamping structure, and the adjustable clamping structure is used for clamping straight needle of different sizes.

[0006] Through the technical scheme, when the straight needle is installed, the connecting rod is first fixed into the riveting block, and then the corresponding straight needle is fixed into the hole of the needle clamping block. When the power gear installed in the fixed box is rotated under the power provided by the motor, the gear slot rod is pushed forward through the meshing mode, and the auxiliary gear fixed below the gear slot rod provides assistance to make the pushing more smooth. With the forward movement of the gear slot rod, the needle clamping block fixed with the straight needle is pushed to the riveting block fixed with the connecting rod. At this time, the two sliding rods fixed below the needle clamping block assist the sliding. Through the step-by-step pushing of the gear slot rod and the cooperation of the needle clamping block and the riveting block, the work of riveting and fixing the straight needle and the connecting rod is completed.

[0007] Further description of the above technical scheme:

[0008] The adjustable clamping structure comprises clamping blocks, a plurality of clamping blocks are slidably connected to the inner side of the needle clamping block, the rear side of each of the plurality of clamping blocks is fixedly connected to a limiting rod, the front side of each of the plurality of clamping blocks is fixedly connected to a sliding rod, the inner side of the front end of the needle clamping block is rotatably connected to a rotating disc, the front end top of the rotating disc is fixedly connected to an adjusting rod, and an adjusting groove is formed in the front side upper end of the needle clamping block.

[0009] Through the above technical scheme, the adjusting rod is pinched and slid in the adjusting groove to control the rotation of the rotating disc installed in the needle clamping block. When the rotating disc rotates, the sliding rod in the sliding groove on the rotating disc is driven to control the sliding of the clamping blocks in the needle clamping block. When the plurality of clamping blocks slide in the needle clamping block, the sliding track is limited by the limiting rod and the hexagonal groove in the needle clamping block, so as to control the sliding track of the plurality of clamping blocks.

[0010] Further description of the above technical scheme:

[0011] Two insertion grooves are equidistantly formed in the front top of the needle clamping block, and a dust cover is slidably connected to the inner side of each of the two insertion grooves.

[0012] Through the above technical scheme, the dust cover inserted into the insertion groove can prevent dust and foreign matters from entering the adjusting groove and protect the adjusting rod.

[0013] Further description of the above technical scheme:

[0014] Two round holes one are equidistantly formed in the lower end of the needle clamping block, and a calibration rod is slidably connected to the inner side of each of the two round holes one.

[0015] Through the above technical scheme, the calibration rod is fixed between the riveting block and the fixed box, and the calibration of the needle clamping block is realized by cooperating with the round hole one below the needle clamping block.

[0016] Further description of the above technical scheme:

[0017] The front end of the tooth groove rod is fixedly connected with a push needle rod, and a circular hole two is formed in the front side of the push needle rod.

[0018] Through the above technical scheme: when the tooth groove rod pushes the needle clamping block, the push needle rod avoids damage to the straight needle tip through the circular hole two.

[0019] As a further description of the above technical scheme:

[0020] The front side of the push needle rod is provided with a protective ring, and the front side of the protective ring is fixedly connected with a drawing pin at equal intervals.

[0021] Through the above technical scheme: the drawing pin fixes the protective ring in front of the push needle rod to buffer the collision between the push needle rod and the straight needle.

[0022] As a further description of the above technical scheme:

[0023] The bottom of the tooth groove rod is provided with a lifting plate, and a plurality of supporting rods are fixedly connected to the bottom of the lifting plate at equal intervals.

[0024] Through the above technical scheme: the supporting rods fix the lifting plate to provide support for the tooth groove rod.

[0025] As a further description of the above technical scheme:

[0026] The top left side of the riveting block is fixedly connected with a fixed rod, and the outer wall of the fixed rod is slidingly connected with a limiting baffle.

[0027] Through the above technical scheme: the limiting baffle is installed on the rod to help the riveting block fix different lengths of connecting rods.

[0028] The utility model has the following beneficial effects:

[0029] 1、in the utility model, the motor drives the tooth groove rod to push forward through the power gear and the auxiliary gear, and the needle clamping block is pushed to the riveting block through the cooperation of the tooth groove rod and the sliding rod, and the motor can be stopped at any time to adjust the straight needle in this process, so that the effect of convenient adjustment of the straight needle is realized, and the control precision of the pushing force is also improved.

[0030] 2、in the utility model, the sliding of the adjusting rod in the adjusting groove is used to control the rotation of the rotating disc, at this time, the rotating disc drives the clamping block to slide in the needle clamping block through the sliding rod, and the limiting rod cooperates with the hexagonal groove in the needle clamping block to limit the sliding track of the clamping block, so that the effect of clamping the straight needle of different sizes is realized through the sliding of the multiple clamping blocks in the needle clamping block. DETAILED DESCRIPTION

[0031] Figure 1 A perspective view of a riveting tool for a straight needle is provided for the utility model;

[0032] Figure 2 A plan view of the riveting tool of the straight needle is provided in the utility model;

[0033] Figure 3 A partial structure sectional view of the riveting tool of the straight needle is provided in the utility model;

[0034] Figure 4 An adjustable clamping structure exploded view of the riveting tool of the straight needle is provided in the utility model;

[0035] Figure 5 A partial structure exploded view of the riveting tool of the straight needle is provided in the utility model.

[0036] Legend:

[0037] 1, bottom plate; 2, adjustable clamping structure; 201, clamping block; 202, limiting rod; 203, sliding rod; 204, turntable; 205, adjusting rod; 206, adjusting groove; 3, motor; 4, power gear; 5, fixed box; 6, auxiliary gear; 7, gear slot rod; 8, sliding rod; 9, needle clamping block; 10, riveting block; 11, insertion slot; 12, dust cover; 13, round hole one; 14, calibration rod; 15, push needle rod; 16, round hole two; 17, protective ring; 18, drawing pin; 19, lifting plate; 20, supporting rod; 21, fixed rod; 22, limiting baffle. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0039] Reference Figure 2 , Figure 3 and Figure 4The utility model provides a kind of riveting tool of straight needle, including bottom plate 1, the top rear side left end of bottom plate 1 is fixedly connected with motor 3, the output of motor 3 is fixedly connected with power gear 4, motor 3 drives power gear 4 rotation, the bottom rear side of bottom plate 1 is fixedly connected with fixed box 5, the inside middle lower part of fixed box 5 is rotatably connected with auxiliary gear 6, the adjacent side of power gear 4 and auxiliary gear 6 is all engaged with tooth groove rod 7, auxiliary gear 6 in fixed box 5 is fixed auxiliary power gear 4 drives tooth groove rod 7, the top wall middle part of bottom plate 1 is fixedly connected with two slide bars 8 at equal intervals, the top of two slide bars 8 is all slidingly connected with needle clamping block 9, two slide bars 8 are used to assist needle clamping block 9 sliding, the top front side of bottom plate 1 is fixedly connected with riveting block 10, riveting block 10 is used to fixed connecting rod, adjustable clamping structure 2 is installed in the inside of needle clamping block 9, adjustable clamping structure 2 is used to clamp different sizes straight needle, two round holes one 13 are opened at equal intervals in the lower end of needle clamping block 9, the inside of two round holes one 13 is all slidingly connected with calibration rod 14, calibration rod 14 in round hole one 13 is used for the calibration work of needle clamping block 9, the top left side of riveting block 10 is fixedly connected with fixed rod 21, the outer wall of fixed rod 21 is slidingly connected with limit baffle 22, limit baffle 22 can make riveting block 10 fixed different length connecting rod;

[0040] Specifically, when installing straight needle, first, connecting rod is fixed into riveting block 10, then corresponding straight needle is fixed into the hole of needle clamping block 9, under the power of motor 3, power gear 4 installed in fixed box 5 rotates, when power gear 4 rotates, it will push tooth groove rod 7 forward by engaging, at the same time, auxiliary gear 6 fixed below tooth groove rod 7 will provide assistance for it, so that it is pushed more smoothly, and with the forward movement of tooth groove rod 7, needle clamping block 9 fixed with straight needle will be pushed to riveting block 10 fixed with connecting rod, at this time, two slide bars 8 fixed below needle clamping block 9 will assist its sliding, through the gradual pushing of tooth groove rod 7, riveting work of straight needle and connecting rod is completed by cooperating needle clamping block 9 and riveting block 10, in this process, motor 3 can be stopped at any time to adjust straight needle, so as to realize the effect of convenient adjustment of straight needle, through the cooperation of calibration rod 14 fixed on riveting block 10 and fixed box 5 and round hole one 13 below needle clamping block 9, needle clamping block 9 can be calibrated, and limit baffle 22 fixed on fixed rod 21 can assist riveting block 10 to fix connecting rod of different lengths.

[0041] Refer to Figure 4The adjustable clamping structure 2 comprises clamping blocks 201, the plurality of clamping blocks 201 are slidably connected to the inner side of the clamping needle block 9, the rear side of the plurality of clamping blocks 201 is fixedly connected to a limiting rod 202, the limiting rod 202 is used for limiting the sliding track of the clamping block 201, the front side of the plurality of clamping blocks 201 is fixedly connected to a sliding rod 203, the inner side of the front end of the clamping needle block 9 is rotatably connected to a rotating disc 204, the rotating disc 204 drives the clamping block 201 to slide through the sliding rod 203, the front end top of the rotating disc 204 is fixedly connected to an adjusting rod 205, the front side upper end of the clamping needle block 9 is provided with an adjusting groove 206, the rotation of the rotating disc 204 is controlled by the sliding of the adjusting rod 205 in the adjusting groove 206, two insertion slots 11 are equidistantly arranged on the front side top of the clamping needle block 9, the inner side of the two insertion slots 11 is slidably connected to a dust cover 12, and the dust cover 12 cooperates with the insertion slot 11 to provide protection for the adjusting rod 205;

[0042] Specifically, the rotating disc 204 installed in the clamping needle block 9 is controlled to rotate by sliding the adjusting rod 205 in the adjusting groove 206, when the rotating disc 204 rotates, the sliding rod 203 in the rotating disc 204 is driven to slide through the sliding groove on the rotating disc 204, so as to control the clamping block 201 to slide in the clamping needle block 9, and the sliding track of the plurality of clamping blocks 201 in the clamping needle block 9 is limited by the limiting rod 202 and the hexagonal groove in the clamping needle block 9, so as to control the sliding track of the plurality of clamping blocks 201, and the effect of clamping straight needles of different sizes is realized by the sliding of the plurality of clamping blocks 201 in the clamping needle block 9, the dust cover 12 is inserted into the insertion slot 11, dust and foreign matters can be prevented from falling into the adjusting groove 206, and the dust cover 12 provides protection for the adjusting rod 205.

[0043] Referring to Figure 1 and Figure 5 , the front end of the tooth groove rod 7 is fixedly connected with a needle pushing rod 15, the front side of the needle pushing rod 15 is provided with a circular hole two 16, the needle pushing rod 15 cooperates with the circular hole two 16 to avoid damage to the straight needle when the straight needle is pushed, the front side of the needle pushing rod 15 is provided with a protective ring 17, the front side of the protective ring 17 is equidistantly fixedly connected with a drawing pin 18, the protective ring 17 can form a buffer between the needle pushing rod 15 and the straight needle, and the bottom of the tooth groove rod 7 is provided with a lifting plate 19, the bottom of the lifting plate 19 is equidistantly fixedly connected with a plurality of supporting rods 20, and the lifting plate 19 fixed on the supporting rod 20 can provide support for the tooth groove rod 7;

[0044] Specifically, when the tooth groove rod 7 pushes the clamping needle block 9, the needle pushing rod 15 can avoid damage to the needle tip of the straight needle through the circular hole two 16, the protective ring 17 fixed in front of the needle pushing rod 15 can form a buffer between the needle pushing rod 15 and the straight needle, so as to form protection, and the lifting plate 19 fixed by the plurality of supporting rods 20 can provide support for the tooth groove rod 7.

[0045] Working principle: when installing the straight needle, first fix the connecting rod in the riveting block 10, then fix the corresponding straight needle in the hole of the needle clamping block 9, under the power provided by the motor 3, the power gear 4 installed in the fixed box 5 rotates, when the power gear 4 rotates, it will push the gear slot rod 7 forward by meshing, and the auxiliary gear 6 fixed below the gear slot rod 7 will provide auxiliary assistance; make it more smooth, and with the forward movement of the gear slot rod 7, the needle clamping block 9 fixed with the straight needle will be pushed to the riveting block 10 fixed with the connecting rod, at this time, the two slide rods 8 fixed below the needle clamping block 9 will assist its sliding; through the step-by-step pushing of the gear slot rod 7, the needle clamping block 9 and the riveting block 10 complete the riveting and fixing of the straight needle and the connecting rod, in this process, the motor 3 can be stopped at any time to adjust the straight needle, so as to realize the convenient adjustment effect of the straight needle, and improve the control accuracy of the pushing force;

[0046] When fixing the straight needle in the needle clamping block 9, the adjusting rod 205 can be pinched to slide in the adjusting groove 206, so as to control the rotation of the rotating disc 204 installed in the needle clamping block 9; when the rotating disc 204 rotates, the sliding rod 203 in it will be driven through the sliding groove on it, so as to control the sliding of the clamping block 201 in the needle clamping block 9, and when the plurality of clamping blocks 201 slide in the needle clamping block 9, the sliding track will be limited by the limiting rod 202 cooperating with the hexagonal groove in the needle clamping block 9, so as to control the sliding track of the plurality of clamping blocks 201; through the sliding of the plurality of clamping blocks 201 in the needle clamping block 9, the effect of clamping straight needles of different sizes is realized.

[0047] Finally, it should be pointed out that: the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A straight needle riveting tool comprising a base plate (1), characterized in that: The top rear side left end of the bottom plate (1) is fixedly connected with a motor (3), the output end of the motor (3) is fixedly connected with a power gear (4), the bottom rear side of the bottom plate (1) is fixedly connected with a fixed box (5), the inner side middle lower part of the fixed box (5) is rotatably connected with an auxiliary gear (6), the adjacent side of the power gear (4) and the auxiliary gear (6) is engagedly connected with a gear slot rod (7), the top wall middle part of the bottom plate (1) is equidistantly fixedly connected with two slide rods (8), the top of the two slide rods (8) is slidably connected with a clamping needle block (9), the top front side of the bottom plate (1) is fixedly connected with a riveting block (10), the inside of the clamping needle block (9) is mounted with an adjustable clamping structure (2), and the adjustable clamping structure (2) is used for clamping straight needles of different sizes.

2. The straight needle swaging tool of claim 1, wherein: The adjustable clamping structure (2) comprises a clamping block (201), a plurality of clamping blocks (201) are slidably connected to the inner side of the clamping needle block (9), the rear side of the plurality of clamping blocks (201) is fixedly connected with a limiting rod (202), the front side of the plurality of clamping blocks (201) is fixedly connected with a sliding rod (203), the inner side front end of the clamping needle block (9) is rotatably connected with a rotating disc (204), the front end top of the rotating disc (204) is fixedly connected with an adjusting rod (205), and the front side upper end of the clamping needle block (9) is provided with an adjusting groove (206).

3. The straight needle swaging tool of claim 1, wherein: The front side top of the clamping needle block (9) is equidistantly provided with two insertion grooves (11), and the inner side of the two insertion grooves (11) is slidably connected with a dust cover (12).

4. The straight needle swaging tool of claim 1, wherein: The lower end of the clamping needle block (9) is equidistantly provided with two circular holes (13), and the inner side of the two circular holes (13) is slidably connected with a calibration rod (14).

5. The straight needle swaging tool of claim 1 wherein: The front end of the gear slot rod (7) is fixedly connected with a needle pushing rod (15), and the front side of the needle pushing rod (15) is provided with a circular hole (16).

6. The straight needle swaging tool of claim 5, wherein: The front side of the needle pushing rod (15) is provided with a protective ring (17), and the front side of the protective ring (17) is equidistantly fixedly connected with a thumbtack (18).

7. The straight needle swaging tool of claim 1, wherein: The bottom of the gear slot rod (7) is provided with a lifting plate (19), and the bottom of the lifting plate (19) is equidistantly fixedly connected with a plurality of supporting rods (20).

8. The straight needle swaging tool of claim 1, wherein: The top left side of the riveting block (10) is fixedly connected with a fixed rod (21), and the outer wall of the fixed rod (21) is slidably connected with a limiting baffle (22).