A kind of twist needle feeding and clamping device

Abstract

The present invention provides a feeding and clamping device for twist needles, comprising a running part and a clamping part; a support frame is fixedly installed at the bottom of the running part; a bottom support frame is fixedly installed on the right side of the support frame; a vibration plate is fixedly installed on the top of the bottom support frame; a fixed platform is fixedly installed at the bottom of the clamping part; the clamping part comprises a base block, a pull rod, a straightening flange, a retracting sleeve, a positioning pin and a chuck, and a pull rod is inserted inside the base block. The arrangement of the retracting sleeve and the front and rear cylinders is conducive to improving the reliability of the clamping device, and the retracting sleeve is pulled by the pin to force the chuck to retract, thereby changing the aperture of the chuck to achieve the function of clamping the product. The chuck is a four-petal chuck, which can be evenly clamped at the tail of the twist needle, with minimal impact on the needle body. Compared with the air claw clamping method, the method of adjusting the clamping force by adjusting the stroke of the front and rear cylinders will not damage the twist needle, thereby ensuring the reliability of the product.

Description

Technical Field

[0001] The invention belongs to the technical field of needle feeding and clamping devices, and more specifically, particularly relates to a twist needle feeding and clamping device. Background Art

[0002] In the connector industry, it is difficult to automatically feed twist needles. The needle body is small, soft and easy to deform. Generally, in the industry, a vibration plate is used to screen and feed the twist needles, and the tail is clamped with a clamp. However, through extensive use, we have found some difficult problems. Due to the shape characteristics of the twist needle, its head is relatively large due to the fat, and its tail is relatively small. During the transportation process, it is generally transported through a hole, which causes its tail to swing randomly outside the hole.

[0003] Although the clamp can be opened with a V-groove for centering, there is a certain probability that the product will be permanently bent when the offset tail is clamped in the correct position, or the twist needle cannot penetrate into the hole normally, causing the outer side of the clamp to collide with the tail of the twist needle and cause bending and other uncontrollable phenomena. We have redesigned the mechanism to perfectly solve this problem.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a twist needle feeding and clamping device is provided, in order to achieve a more practical purpose. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a twist needle feeding and clamping device to solve the problem that when the existing holding device is loading and clamping, although the clamping jaws can open V-grooves for centering clamping, there is a certain probability that the offset tail will be permanently bent during the clamping process, or the twist needle cannot penetrate into the hole normally, causing the outer side of the clamping jaw to collide with the tail of the twist needle and cause bending and other uncontrollable phenomena.

[0006] The purpose and effect of the twist needle feeding and clamping device of the present invention are achieved by the following specific technical means: a twist needle feeding and clamping device, including a running part and a clamping part; a support frame is fixedly installed at the bottom of the running part; a bottom support frame is fixedly arranged on the right side of the support frame; a vibration plate is fixedly installed on the top of the bottom support frame; a fixed platform is fixedly installed at the bottom of the clamping part; the clamping part includes a base block, a pull rod, a straightening flange, a retracting sleeve, a positioning pin and a chuck, a pull rod is inserted inside the base block, a straightening flange is fixedly arranged at the front end of the base block, a retracting sleeve is movably arranged on the right side of the straightening flange, a chuck is movably arranged at the front end of the right side of the retracting sleeve, and a positioning pin is movably arranged on the inside of the chuck; a front and rear cylinder is arranged on the rear side of the clamping part.

[0007] Furthermore, the operating part includes an associated frame, a sealing cylinder, a connecting plate, a blowing rod and a suction rod. A sealing cylinder is fixedly connected to the front end of the associated frame, a connecting plate is fixedly installed at the front end of the sealing cylinder, a suction rod is inserted through the left side of the connecting plate, and a blowing rod is inserted through the right side of the connecting plate, and the rear sides of the blowing rod and the suction rod both pass through and extend to the inner side of the front end of the associated frame.

[0008] Furthermore, the operating part also includes a servo motor, a turntable, a discharging counter-shooting sensor and a feeding counter-shooting sensor. A servo motor is fixedly arranged on the rear side of the associated frame. The front end rotating shaft of the servo motor passes through the associated frame and is fixedly arranged with a turntable. The feeding counter-shooting sensor is symmetrically arranged on the left end of the associated frame, and the discharging counter-shooting sensor is symmetrically arranged on the right end of the associated frame. The two discharging counter-shooting sensors and the two feeding counter-shooting sensors correspond to the counter-shooting detection holes on the twisted pinholes on the left and right sides of the turntable, and the sealed air port on the turntable corresponds to the blowing rod and the suction rod.

[0009] Furthermore, the chuck is divided into four petals, and a positioning pin is movably provided inside the four-petal chuck. The positioning pin can slide back and forth along the inside of the chuck, and the pull rod can drive the positioning pin to move.

[0010] Furthermore, the clamping part also includes a slide connecting block and a clamping slide. A slide connecting block is also provided on the rear side of the clamping part. The slide connecting block is connected to the clamping slide. When the clamping slide drives the slide connecting block to move together with the pull rod, the chuck is in a clamping state.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The setting of the retracting sleeve and the chuck is conducive to improving the reliability of the clamping device. The retracting sleeve is pulled by the pin to force the chuck to retract, but the chuck is not moved back in space, thereby changing the aperture of the chuck to achieve the function of clamping the product. The chuck is a four-petal chuck, which can be evenly clamped at the tail of the twist needle with minimal impact on the needle body, and the clamping force can be adjusted by adjusting the stroke of the front and rear cylinders. Compared with the air claw clamping method, the method of adjusting the clamping force by adjusting the stroke of the front and rear cylinders will not damage the twist needle, thereby ensuring the reliability of the product.

[0013] 2. The setting of the turntable and the sealing cylinder is conducive to improving the stability of the clamping device. By retracting the sealing cylinder, the sealing rod fits on the turntable to seal the air inlet, and the suction rod inhales air to completely suck the twist needle into the twist needle hole of the turntable. At this time, most of the twist needle is embedded in the turntable, which completely solves the problem of tail swing and avoids the bending of the offset twist needle during the clamping process of the chuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an axial structural schematic diagram of the present invention.

[0015] Figure 2 It is a schematic diagram of the axial structure of the utility model after partial disassembly.

[0016] Figure 3 It is a schematic diagram of the axial structure of the operating part of the present invention.

[0017] Figure 4 It is a schematic cross-sectional structural diagram of the clamping part of the present invention.

[0018] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0019] 1-operating part; 101-associated frame; 102-sealing cylinder; 103-connecting plate; 104-blowing rod; 105-suction rod; 106-servo motor; 107-turntable; 108-discharging counter-shooting sensor; 109-feeding counter-shooting sensor; 2-clamping part; 201-base block; 202-pull rod; 203-rightening flange; 204-retracting sleeve; 205-locating pin; 206-chuck; 207-slide connecting block; 208-clamping slide; 3-vibrating plate; 4-bottom support frame; 5-support frame; 6-fixed platform; 7-front and rear cylinders. DETAILED DESCRIPTION

[0020] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] Example:

[0022] As attached Figure 1 To Attachment Figure 4 As shown: a twist needle feeding and clamping device provided by the present invention comprises a running part 1 and a clamping part 2; a support frame 5 is fixedly installed at the bottom of the running part 1; a bottom support frame 4 is fixedly arranged on the right side of the support frame 5; a vibration plate 3 is fixedly installed on the top of the bottom support frame 4; a fixed platform 6 is fixedly installed at the bottom of the clamping part 2; the clamping part 2 comprises a base block 201, a pull rod 202, a straightening flange 203, a retracting sleeve 204, a positioning pin 205 and a chuck 206, a pull rod 202 is inserted inside the base block 201, a straightening flange 203 is fixedly arranged at the front end of the base block 201, a retracting sleeve 204 is movably arranged on the right side of the straightening flange 203, a chuck 206 is movably arranged at the front end of the right side of the retracting sleeve 204, and a positioning pin 205 is movably arranged on the inner side of the chuck 206; a front and rear cylinder 7 is arranged at the rear side of the clamping part 2.

[0023] Among them, the operating part 1 includes an associated frame 101, a sealing cylinder 102, a connecting plate 103, a blowing rod 104 and an air suction rod 105. A sealing cylinder 102 is fixedly connected to the front end of the associated frame 101, and a connecting plate 103 is fixedly installed at the front end of the sealing cylinder 102. The air suction rod 105 is inserted through the left side of the connecting plate 103, and a blowing rod 104 is inserted through the right side of the connecting plate 103. The rear sides of the blowing rod 104 and the air suction rod 105 both pass through and extend to the inner side of the front end of the associated frame 101.

[0024] Among them, the operating part 1 also includes a servo motor 106, a turntable 107, a discharging counter-shooting sensor 108 and a feeding counter-shooting sensor 109, an associated frame 101, a servo motor 106 is fixedly arranged on the rear side, the front end rotating shaft of the servo motor 106 passes through the associated frame 101 and is fixedly arranged with a turntable 107, the left end of the associated frame 101 is symmetrically arranged with a feeding counter-shooting sensor 109, the right side of the associated frame 101 is symmetrically arranged with a discharging counter-shooting sensor 108, the two discharging counter-shooting sensors 108 and the two feeding counter-shooting sensors 109 correspond to the counter-shooting detection holes on the twisted pinholes on the left and right sides of the turntable 107, and the sealed air port on the turntable 107 corresponds to the blowing rod 104 and the suction rod 105.

[0025] Among them, the chuck 206 is divided into four petals, and a positioning pin 205 is movably arranged on the inner side of the four-petal chuck 206. The positioning pin 205 can slide back and forth along the inner side of the chuck 206. The pull rod 202 can drive the positioning pin 205 to move, and the clamping force of the four-petal chuck 206 can be changed through the stroke of the front and rear cylinders 7.

[0026] Among them, the clamping part 2 also includes a slide connecting block 207 and a clamping slide 208. A slide connecting block 207 is also provided on the rear side of the clamping part 2. The slide connecting block 207 is connected to the clamping slide 208. When the clamping slide 208 drives the slide connecting block 207 to move together with the pull rod 202, the chuck 206 is in a clamped state.

[0027] The specific usage and function of this embodiment are as follows:

[0028] In the present invention, when in use, the twist needles are fed through the vibrating plate 3, and the twist needles are sent out one by one with their big heads facing forward, the sealing cylinder 102 is retracted, the sealing rod is attached to the rotary plate 107 to seal the air inlet, the suction rod 105 inhales air, and the twist needles are completely sucked into the twist needle holes of the rotary plate 107, and the feed shooting sensor 109 detects whether the product is in place through the shooting detection hole on the rotary plate 107. After the product is in place, the sealing cylinder 102 extends, the servo motor 106 drives the rotary plate 107 to rotate 180 degrees, the sealing cylinder 102 retracts, and the blowing rod 104 blows air to blow the twist needles out, and the process is completed. In one feeding cycle, when the twist needle is blown out, the tail is positioned on the positioning pin 205, and then the slide pulls the pull rod 202, which in turn pulls the retraction sleeve 204 through the pin, forcing the chuck 206 to retract, but does not make the chuck 206 retreat in space, thereby changing the aperture of the chuck 206 to achieve the function of clamping the product. The chuck 206 is a four-petal chuck 206, which can be evenly clamped on the tail of the twist needle with minimal impact on the needle body, and the clamping force can be adjusted by adjusting the stroke of the front and rear cylinders 7. When the twist needle is blown out, the tail is positioned on the positioning pin 205. Subsequently, the slide pulls the pull rod 202 through the clamping slide 208 and the slide connecting block 207, and then pulls the retracting sleeve 204 through the pin, forcing the chuck 206 to retract, but without making the chuck 206 retreat in space, thereby changing the aperture of the chuck 206 to achieve the function of clamping the product. The chuck 206 is a four-petal chuck 206, which can be evenly clamped on the tail of the twist needle with minimal impact on the needle body, and the clamping force can be adjusted by adjusting the stroke of the front and rear cylinders 7. Compared with the pneumatic claw clamping method, the method of adjusting the clamping force by adjusting the stroke of the front and rear cylinders 7 will not damage the twist needle, thereby ensuring the reliability of the product.

Claims

1. A twist needle feeding and clamping device, characterized in that: The invention comprises a running part (1) and a clamping part (2); a support frame (5) is fixedly installed at the bottom of the running part (1); a bottom support frame (4) is fixedly arranged on the right side of the support frame (5); a vibration plate (3) is fixedly installed on the top of the bottom support frame (4); a fixed platform (6) is fixedly installed at the bottom of the clamping part (2); the clamping part (2) comprises a base block (201), a pull rod (202), a straightening flange (203), a retracting sleeve (204), a positioning pin (205) and a chuck (206); a pull rod (202) is inserted inside the base block (201); a straightening flange (203) is fixedly arranged at the front end of the base block (201); a retracting sleeve (204) is movably arranged on the right side of the straightening flange (203); a chuck (206) is movably arranged at the front end of the right side of the retracting sleeve (204); a positioning pin (205) is movably arranged on the inner side of the chuck (206); A front and rear cylinder (7) is arranged at the rear side of the clamping part (2); the operating part (1) comprises a related frame (101), a sealing cylinder (102), a connecting plate (103), a blowing rod (104) and a suction rod (105); a sealing cylinder (102) is fixedly connected to the front end of the related frame (101); a connecting plate (103) is fixedly installed at the front end of the sealing cylinder (102); a suction rod (104) is inserted on the left side of the connecting plate (103). 105), and a blowing rod (104) is inserted on the right side of the connecting plate (103), and the rear sides of the blowing rod (104) and the suction rod (105) both pass through and extend to the inner side of the front end of the associated frame (101); the chuck (206) is divided into four petals, and a positioning pin (205) is movably provided on the inner side of the four-petal chuck (206), and the positioning pin (205) can slide back and forth along the inner side of the chuck (206), and the pull rod (202) can drive the positioning pin (205) to move.

2. The twist needle feeding and clamping device according to claim 1, characterized in that: The operating part (1) further comprises a servo motor (106), a rotating disk (107), a discharge counter-shooting sensor (108) and a feed counter-shooting sensor (109); a servo motor (106) is fixedly arranged on the rear side of the associated frame (101); a rotating shaft at the front end of the servo motor (106) passes through the associated frame (101) and is fixedly arranged on a rotating disk (107); a feed counter-shooting sensor (109) is symmetrically arranged on the left end of the associated frame (101); and a discharge counter-shooting sensor (108) is symmetrically arranged on the right end of the associated frame (101); the two discharge counter-shooting sensors (108) and the two feed counter-shooting sensors (109) correspond to the counter-shooting detection holes on the twisted needle holes on the left and right sides of the rotating disk (107); and the sealed air port on the rotating disk (107) corresponds to the blowing rod (104) and the suction rod (105).

3. The twist needle feeding and clamping device according to claim 1, characterized in that: The clamping portion (2) further comprises a slide connection block (207) and a clamping slide (208). A slide connection block (207) is further provided on the rear side of the clamping portion (2). The slide connection block (207) is connected to the clamping slide (208). When the clamping slide (208) drives the slide connection block (207) and the pull rod (202) to move, the clamping head (206) is in a clamping state.

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