Automatic placing device and method for annular parts for metal powder machining

Abstract

The invention discloses an automatic placing device and method for annular parts for metal powder machining. A connecting supporting frame is mounted at the output end of a first three-axis sliding table, and first supporting top bases are mounted on the two sides of the connecting supporting frame correspondingly; a first conveying belt and a second conveying belt are arranged on the two sides of the first three-axis sliding table and located below the positions, close to the first supporting top base, of the first three-axis sliding table correspondingly, second three-axis sliding tables are arranged on the other two sides of the first three-axis sliding table correspondingly, and second supporting top bases are installed at the output ends of the second three-axis sliding tables. A plurality of first clamping devices which are evenly distributed in an array mode are installed on the lower portion of the first supporting top seat in a spliced mode, a plurality of second clamping devices which are evenly distributed in an array mode are installed on the lower portion of the second supporting top seat in a spliced mode, and a transfer sliding table is arranged below the first clamping devices and the second clamping devices and located between the first conveying belt and the second conveying belt. And the placing efficiency of a plurality of pairs of metal rings stacked on each disc is fully improved, so that the plurality of pairs of metal rings placed in an array can be quickly and well stacked.

Description

Technical Field

[0001] The invention relates to the field of powder metal processing, in particular to an automatic placement device for ring-shaped parts for metal powder processing and a method thereof. Background Art

[0002] Metal stacking and sintering is an important direction of powder metallurgy. It requires repeated stacking of multiple pairs of metal rings, accurate and efficient stacking, fast and efficient placement, and multiple workers to perform repeated operations, with high work intensity and low work efficiency.

[0003] The patent document with publication number CN216830399U discloses an automatic stacking device for sintering anti-sticking grinding wheels, including a chassis, an electric control box is fixedly installed on the right side of the chassis, four groups of stacking mechanisms are evenly spaced on the left side inside the chassis, the upper end of the stacking mechanism passes through the top right side of the chassis, a vertical plate is fixedly installed on the top left side of the chassis, and a picking and placing mechanism is fixedly installed on the top of the vertical plate.

[0004] The above-mentioned device has the following shortcomings: when in use, the above-mentioned device simply stacks wheel-shaped sheet objects through automatic equipment, the overall work efficiency is low, and it is not suitable for the staggered stacking of multiple ring-shaped sheets. The clamping effect of the clamping mechanism of the above-mentioned device is not good, it is easy to over-clamp, and it is easy to damage the fragile powder metal ring. At the same time, the above-mentioned device is easy to damage each sheet when connecting each wheel-shaped sheet in series, and the work efficiency will be further reduced due to the speed reduction to protect the sheet. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic placement device for annular parts for metal powder processing in order to address the above-mentioned problems and shortcomings, thereby improving the overall work efficiency.

[0006] The technical problems solved by the present invention are:

[0007] (1) When in use, the above device simply stacks the wheel-shaped sheet objects through automatic equipment, the overall working efficiency is low, and it is not suitable for staggered stacking of multiple ring-shaped sheets;

[0008] (2) The clamping effect of the clamping mechanism of the above device is poor, and it is easy to over-clamp and damage the fragile powder metal ring;

[0009] (3) The above device is prone to damage each wheel-shaped sheet when connecting each wheel-shaped sheet in series, and further reduces work efficiency due to the speed reduction to protect the sheet.

[0010] The purpose of the present invention can be achieved through the following technical scheme: an automatic placement device for annular parts for metal powder processing, comprising a first three-axis slide, a connecting support frame is installed at the output end of the first three-axis slide, and first supporting top seats are installed on both sides of the connecting support frame, a first conveyor belt and a second conveyor belt are respectively provided on both sides of the first three-axis slide and below the position close to the first supporting top seat, a second three-axis slide is provided on the other two sides of the first three-axis slide, a second supporting top seat is installed at the output end of the second three-axis slide, a loading conveying chain is provided on one side of the second three-axis slide, a loading square plate is placed on the loading conveying chain, a plurality of first clamps uniformly distributed in an array are spliced ​​and installed at the lower part of the first supporting top seat, a plurality of second clamps uniformly distributed in an array are spliced ​​and installed at the lower part of the second supporting top seat, a transfer slide is provided below the first clamp and the second clamp and between the first conveyor belt and the second conveyor belt, a transfer support seat is slidably installed on the transfer slide, and a plurality of serial threading needles are installed on the transfer support seat.

[0011] As a further solution of the invention, several rows of first powder metal rings are conveyed on the first conveyor belt, and several rows of second powder metal rings are conveyed on the second conveyor belt. Several serial threading needles are divided into two groups, and each group of serial threading needles is evenly distributed at equal intervals. The number of first clamps under the first support top seat, the number of second clamps under the second support top seat, the number of each group of serial threading needles, and the number of first powder metal rings and second powder metal rings in each row are all kept consistent.

[0012] As a further solution of the invention, the first clamper and the second clamper both include a drive box, a clamping motor is installed in the middle of the inner side of the drive box, a drive gear is installed at one end of the drive shaft of the clamping motor, and a plurality of limiting slide grooves evenly distributed in a circular array are opened through the bottom of the drive box.

[0013] As a further solution of the invention, the number of the limiting slide grooves is an even number, and several layers of transmission mechanisms with a spirally stacked structure are installed in the drive box, and each layer of the transmission mechanism corresponds to the two limiting slide grooves located directly below.

[0014] As a further solution of the invention, four limit slide grooves are provided, and each layer of the transmission mechanism includes two limit slide rods symmetrical about the corresponding limit slide grooves, both ends of the limit slide rods are fixedly connected to the drive box, and a transmission slide rod is slidably connected to the limit slide rods. The two transmission slide rods on each layer are centrally symmetrical about the driving gear and mesh with the driving gear for transmission.

[0015] As a further solution of the invention, a connecting slider is slidably embedded in the limiting slide groove, a positioning slider is installed on the top of the connecting slider, the positioning slider corresponds to the transmission slide rod one by one and is connected, the positioning slider has a triangular structure, one corner of the positioning slider is matched with one corner of the drive box and the other corner is missing.

[0016] As a further scheme of the invention, the lower end of the connecting slider is fixedly connected with a clamping vertical rod, the cross-section of the clamping vertical rod is triangular, and the hypotenuse side of the lower end of the clamping vertical rod is fixedly connected with a clamping support hook, and the other two sides of the lower end of the clamping vertical rod are fixedly connected with installation support hooks, and the outer periphery of each clamping vertical rod is installed with a limiting rubber band through the installation support hook sleeve.

[0017] As a further solution of the invention, an installation limit box is embedded in the middle of the hypotenuse side of the clamping vertical rod, a limit spring is installed in the installation limit box, the top of the limit spring is fixedly connected to the limit push block, the tail end of the limit push block is clamped with the port of the installation limit box, the clamping vertical rod of the first clamper is shorter than the clamping vertical rod of the second clamper, and the clamping support hook of the first clamper is wedge-shaped.

[0018] As a further solution of the invention, the transfer support seat has a hollow structure, and a buffer spring is provided inside the transfer support seat and on each serial threading needle. The upper end of the buffer spring is fixedly connected to a support slide. The serial threading needle movably passes through the support slide, and the lower end of the support slide is movably installed in the transfer support seat. The outer peripheral surfaces of the first conveyor belt and the second conveyor belt are provided with several pairs of equidistant and evenly distributed limiting rubber strips, and the spacing between each pair of limiting rubber strips is adapted to the diameter of the powder metal ring.

[0019] As a further solution of the invention, a working method of an automatic placement device for ring-shaped parts for metal powder processing comprises the following steps:

[0020] Step 1: The transfer slide moves the transfer support seat, and the first conveyor belt and the second conveyor belt begin to convey the first powder metal ring and the second powder metal ring;

[0021] Step 2: The first three-axis slide moves the first clamper to clamp and stack the first powder metal ring and the second powder metal ring in an alternating manner;

[0022] Step 3: Move the several pairs of metal rings connected in series to the second clamper, take them out and move them to the containing square plate, and simultaneously connect several pairs of metal rings of the next group in series;

[0023] Step 4: The metal rings are continuously clamped and taken to the serving plate until it is full and then taken away.

[0024] Beneficial effects of the present invention:

[0025] (1) The device does not require a second three-axis slide for positioning, which shortens the overall placement time and further improves efficiency. It keeps multiple superimposed processes synchronously performed at the same time in each step, thereby eliminating the time period for each moving part to move in the overall process, thereby fully improving the placement efficiency of each stacked pair of metal rings, thereby quickly and well stacking the pairs of metal rings arranged in an array. At the same time, through the first support top seat and the second support top seat, the first clamper and the second clamper can be arranged in a row or column as needed, or in an array consistent with the distribution array of the powder metal rings during pressing and forming, thereby cooperating with the powder metal ring forming equipment to further shorten the time before the powder metal rings are sintered and improve overall work efficiency.

[0026] (2) In the drive box, the clamping motor rotates the driving gear, thereby synchronously engaging and driving each transmission slide bar of each layer, thereby synchronously gathering or separating each pair of positioning slide bars, and then synchronously gathering or spreading each clamping vertical rod, and clamping the powder metal ring circumferentially and evenly, avoiding damage to the powder metal ring caused by excessive force during clamping. At the same time, the circumferential clamping ensures stable clamping, and the wedge shape of the clamping support hook is convenient for wedging into the gap between the powder metal ring and the surface of the conveyor belt. At the same time, the powder metal ring is supported vertically by the circumferentially uniform distribution of the clamping support hook, maintaining a more stable support while further reducing the clamping force of the clamping vertical rod, avoiding damage to the powder metal ring, and the second clamper clamps the stacked When there are several pairs of metal rings, elastic force is generated by stretching the limiting rubber band to keep the lower end of the clamping vertical rod stably supporting the clamped metal ring, avoiding the phenomenon of loosening due to the excessive weight of the metal ring. At the same time, it can carry large-sized and high-density powder metal rings. At the same time, the clamping vertical rod is located at the corner of the square driving box, so that the device can stably clamp the powder metal ring with the largest variable diameter range with the smallest self structure. When clamping, each circumferentially evenly distributed limiting pushing block pushes and clamps the powder metal ring in the circumferential direction, so that the powder metal ring always remains coaxial with the driving box, avoiding the powder metal ring from shaking due to friction between the clamping support hook when the material is dropped, and preventing the powder metal ring from being damaged when the material is dropped;

[0027] (3) When the first clamper clamps the powder metal ring and places it on the supporting slide, the buffering support of the buffer spring prevents the powder metal ring from being impacted when it falls and prevents it from being damaged. At the same time, the duration of each step of the first three-axis slide when moving the first clamper is shortened to improve efficiency. The limiting rubber strip allows the first conveyor belt and the second conveyor belt to limit the metal ring when intermittently conveying the powder metal ring to avoid misalignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a top view of the overall structure of the present invention;

[0030] Figure 2 for Figure 1 Sectional view of the AA plane;

[0031] Figure 3 It is a side view of the overall structure of the first clamp of the present invention;

[0032] Figure 4 A top view of the distribution structure of the clamping vertical rod of the present invention;

[0033] Figure 5 A top view of the internal structure of the clamping vertical rod of the present invention;

[0034] Figure 6 A top view of the internal structure of the drive box of the present invention;

[0035] Figure 7 A side view of the internal structure of the transfer support seat of the present invention;

[0036] In the figure: 101, first three-axis slide; 102, connecting support frame; 103, first support top seat; 104, first conveyor belt; 105, second conveyor belt; 106, second three-axis slide; 107, second support top seat; 108, container conveyor chain; 109, container square plate; 110, first clamp; 111, second clamp; 112, transfer slide; 113, transfer support seat; 114, serial threading needle; 201, drive box; 20 2. Clamping motor; 203. Driving gear; 204. Limiting slide; 205. Connecting slider; 206. Positioning slider; 207. Limiting slide bar; 208. Transmission slide bar; 209. Clamping vertical bar; 210. Clamping support hook; 211. Installing support hook; 212. Limiting rubber band; 213. Limiting push block; 214. Installing limit box; 215. Limiting spring; 301. Support slide; 302. Buffer spring; 401. Limiting rubber strip. DETAILED DESCRIPTION

[0037] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0038] See also Figure 1-7As shown: an automatic placement device for annular parts for metal powder processing, comprising a first three-axis slide 101, a connecting support frame 102 is installed at the output end of the first three-axis slide 101, and first supporting top seats 103 are installed on both sides of the connecting support frame 102, and first conveyor belts 104 and second conveyor belts 105 are respectively arranged on both sides of the first three-axis slide 101 and below the position close to the first supporting top seat 103, and second three-axis slides 106 are arranged on the other two sides of the first three-axis slide 101, and a second supporting top seat 107 is installed at the output end of the second three-axis slide 106, and one side of the second three-axis slide 106 is provided A loading conveyor chain 108 is provided, a loading square plate 109 is placed on the loading conveyor chain 108, a plurality of first clamps 110 evenly distributed in an array are spliced ​​and installed at the lower part of the first supporting top seat 103, a plurality of second clamps 111 evenly distributed in an array are spliced ​​and installed at the lower part of the second supporting top seat 107, a transfer slide 112 is provided below the first clamp 110 and the second clamp 111 and between the first conveyor belt 104 and the second conveyor belt 105, a transfer support seat 113 is slidably installed on the transfer slide 112, and a plurality of serial threading needles 114 are installed on the transfer support seat 113;

[0039] A plurality of rows of first powder metal rings are conveyed on the first conveyor belt 104, a plurality of rows of second powder metal rings are conveyed on the second conveyor belt 105, a plurality of serial threading needles 114 are divided into two groups, and each group of serial threading needles 114 is evenly distributed at equal intervals, and the number of first clamps 110 under the first support top seat 103, the number of second clamps 111 under the second support top seat 107, the number of each group of serial threading needles 114, and the number of first powder metal rings and second powder metal rings in each row are all consistent;

[0040] When the present embodiment is working, the transfer support seat 113 is moved by the transfer slide 112, so that one group of serial threading needles 114 is moved to the bottom of the first clamp 110 and between the first conveyor belt 104 and the second conveyor belt 105, and then the first conveyor belt 104 and the second conveyor belt 105 intermittently and continuously convey the first powder metal ring and the second powder metal ring to the first clamp 110, the second powder metal ring cooperates with the first powder metal ring and the first powder metal ring is the bottom. In the present embodiment, the first powder metal ring is a powder iron ring, and the second powder metal ring is a powder copper ring. Under the movement, the first clamper 110 close to the first conveyor belt 104 first clamps the first powder metal rings on the first conveyor belt 104 in a row, and then moves the first powder metal rings to the group of serial threading needles 114. At the same time, the first clamper 110 close to the second conveyor belt 105 moves above the second conveyor belt 105 and moves down synchronously to clamp the second powder metal ring. Then, when the first powder metal ring is clamped again, the second powder metal ring is synchronously stacked on the first powder metal ring serially connected to the serial threading needle 114. When the second powder metal ring is clamped again, the first powder metal ring is synchronously stacked on The second powder metal ring is connected in series on the serial threading needle 114, so that the first powder metal ring and the second powder metal ring are quickly stacked on the group of serial threading needles 114 until the set number of pairs of first powder metal rings and second powder metal rings is reached, and then the transfer slide 112 moves the serially connected pairs of metal rings to the inner side of the second three-axis slide 106 close to it, and moves them to the bottom of the second clamp 111 thereon, and then the second three-axis slide 106 moves the second clamp 111 to clamp the serially connected pairs of metal rings out and move them to the containing square plate 109, and then moves the serially connected pairs of metal rings. At the same time, another group of serial threading needles 114 synchronously connects a number of pairs of metal rings in series under the cooperation of the first three-axis slide 101 and the two groups of first clamps 110 thereon and the first conveyor belt 104 and the second conveyor belt 105. In this embodiment, they are first placed on the left-hand containing square plate 109 and then on the right-hand containing square plate 109. Whenever a row of stacked metal rings is clamped onto the containing square plate 109, the containing conveyor chain 108 moves a distance of a metal ring diameter away from the second clamp 111 until the containing square plate 109 is filled with metal rings and taken away, without the need for the second three-axis slide 106 to position.

[0041] The first clamper 110 and the second clamper 111 both include a drive box 201, a clamping motor 202 is installed in the middle of the inner side of the drive box 201, a driving gear 203 is installed at one end of the driving shaft of the clamping motor 202, and a plurality of limiting slide grooves 204 uniformly distributed in a circular array are opened through the bottom of the drive box 201, and the number of the limiting slide grooves 204 is an even number, and four are selected in this embodiment. A plurality of layers of transmission mechanisms in a spirally stacked structure are installed in the drive box 201, and each layer of the transmission mechanism corresponds to the two limiting slide grooves 204 located directly below, and each layer of the transmission mechanism includes two corresponding limiting slide grooves 204. 04 symmetrical limiting slide bar 207, both ends of the limiting slide bar 207 are fixedly connected to the driving box 201, and a transmission slide bar 208 is slidably connected to the limiting slide bar 207. The two transmission slide bars 208 on each layer are centrally symmetrical about the driving gear 203 and mesh with the driving gear 203 for transmission. A connecting slider 205 is slidably connected in the limiting slide groove 204, and a positioning slider 206 is installed on the top of the connecting slider 205. The positioning slider 206 corresponds to the transmission slide bar 208 one by one and is connected. The positioning slider 206 has a triangular structure, and one corner of the positioning slider 206 is adapted to one corner of the driving box 201 and the other corner is missing.

[0042] The lower end of the connecting slider 205 is fixedly connected with a clamping vertical rod 209, the cross section of the clamping vertical rod 209 is triangular, and the hypotenuse side of the lower end of the clamping vertical rod 209 is fixedly connected with a clamping support hook 210, and the other two sides of the lower end of the clamping vertical rod 209 are fixedly connected with mounting support hooks 211, and the outer periphery of each clamping vertical rod 209 is sleeved with a limited elastic band 212 through the mounting support hook 211;

[0043] A mounting limit box 214 is embedded in the middle of the hypotenuse side of the clamping vertical rod 209, and a limit spring 215 is installed in the mounting limit box 214. The top of the limit spring 215 is fixedly connected to the limit push block 213, and the tail end of the limit push block 213 is clamped with the port of the mounting limit box 214. The clamping vertical rod 209 of the first clamper 110 is shorter than the clamping vertical rod 209 of the second clamper 111, and the clamping support hook 210 of the first clamper 110 is wedge-shaped.

[0044] When the present embodiment is working, in the driving box 201, the clamping motor 202 rotates the driving gear 203, thereby synchronously engaging and driving each transmission slide bar 208 of each layer, thereby synchronously gathering or separating each pair of positioning slide blocks 206, and then synchronously gathering or spreading each clamping vertical rod 209, and clamping the powder metal ring circumferentially and evenly with force, so as to avoid damage to the powder metal ring caused by excessive force during clamping. At the same time, the circumferential clamping ensures stable clamping, and the wedge shape of the clamping support hook 210 is convenient for wedging into the gap between the powder metal ring and the surface of the conveyor belt. At the same time, the clamping support hook 210 is evenly distributed circumferentially to clamp the powder metal ring. The ring is supported in the vertical direction, maintaining a more stable support while further reducing the clamping force of the clamping vertical rod 209 to avoid damaging the powder metal ring. When the second clamp 111 clamps several pairs of stacked metal rings, the limiting rubber band 212 is stretched to generate elastic force to keep the lower end of the clamping vertical rod 209 stably supporting the clamped metal ring to avoid the phenomenon of loosening due to excessive weight of the metal ring. At the same time, it can carry large-sized and high-density powder metal rings. In this embodiment, at the initial moment, each clamping vertical rod 209 is closed first, and then opened to the maximum when moving to the top of the metal ring to be clamped and moved, thereby protecting the elasticity and life of the limiting rubber band 212.

[0045] The transfer support seat 113 is a hollow structure, and a buffer spring 302 is sleeved inside the transfer support seat 113 and on each serial threading needle 114. The upper end of the buffer spring 302 is fixedly connected to the support slide 301. The serial threading needle 114 movably penetrates the support slide 301, and the lower end of the support slide 301 is movably installed in the transfer support seat 113. The outer peripheral surfaces of the first conveyor belt 104 and the second conveyor belt 105 are provided with a plurality of pairs of equally spaced and evenly distributed limiting rubber strips 401, and the spacing between each pair of limiting rubber strips 401 is adapted to the diameter of the powder metal ring.

[0046] When the first clamper 110 clamps the powder metal ring and places it on the supporting slide 301, the buffer support of the buffer spring 302 prevents the powder metal ring from being impacted when falling and prevents it from being damaged. At the same time, the duration of each step of the first three-axis slide 101 when moving the first clamper 110 is shortened to improve efficiency. The limiting rubber strip 401 allows the first conveyor belt 104 and the second conveyor belt 105 to limit the metal ring when intermittently conveying the powder metal ring to avoid dislocation.

[0047] A working method of an automatic placement device for ring-shaped parts for metal powder processing, the method comprising the following steps:

[0048] Step 1: The transfer slide 112 moves the transfer support seat 113, so that one set of serial threading needles 114 moves to the bottom of the first clamp 110 and between the first conveyor belt 104 and the second conveyor belt 105, and the first conveyor belt 104 and the second conveyor belt 105 intermittently and continuously convey the first powder metal ring and the second powder metal ring to the first clamp 110;

[0049] Step 2: The first three-axis slide 101 moves the first clamper 110 close to the first conveyor belt 104 to first clamp the first powder metal rings on the first conveyor belt 104 in a row, and then moves the first powder metal rings to the group of serial threading needles 114. At the same time, the first clamper 110 close to the second conveyor belt 105 moves to above the second conveyor belt 105, and synchronously moves down to clamp the second powder metal ring. Then, when the first powder metal ring is clamped again, the second powder metal ring is synchronously stacked on the first powder metal ring serially connected to the serial threading needle 114. When the second powder metal ring is clamped again, the first powder metal ring is synchronously stacked on the second powder metal ring serially connected to the serial threading needle 114, so that the first powder metal ring and the second powder metal ring are quickly staggered and stacked on the group of serial threading needles 114 until the set number of logarithms of the first powder metal ring and the second powder metal ring is reached;

[0050] Step 3: The transfer slide 112 moves the several pairs of metal rings connected in series to the inner side of the second three-axis slide 106 close to it, and moves them to the bottom of the second clamp 111 thereon, and then the second three-axis slide 106 moves the second clamp 111 to clamp and take out the several pairs of metal rings connected in series and move them to the containing square plate 109. While the several pairs of metal rings connected in series are being moved, another group of serial threading needles 114 synchronously connects the several pairs of metal rings in series under the cooperation of the first three-axis slide 101 and the two groups of first clamps 110 thereon, as well as the first conveyor belt 104 and the second conveyor belt 105;

[0051] Step 4: Whenever a row of stacked metal rings is clamped onto the containing square plate 109, the containing conveyor chain 108 moves a distance of a metal ring diameter away from the second clamper 111 until the containing square plate 109 is filled with metal rings and removed.

[0052] When the present invention is in use, the staff moves the transfer support seat 113 through the transfer slide 112, so that one group of serial threading needles 114 moves to the bottom of the first clamp 110 and between the first conveyor belt 104 and the second conveyor belt 105, and then the first conveyor belt 104 and the second conveyor belt 105 intermittently and continuously convey the first powder metal ring and the second powder metal ring to the first clamp 110, the second powder metal ring cooperates with the first powder metal ring and the first powder metal ring is placed at the bottom, and under the movement of the first three-axis slide 101, the first clamp 110 close to the first conveyor belt 104 first clamps the first powder metal ring on the first conveyor belt 104 in a row, and then the first powder metal ring is conveyed to the first clamp 110. The metal ring moves to the group of serially connected threading needles 114, and at the same time, the first clamper 110 close to the second conveyor belt 105 moves to the top of the second conveyor belt 105, and synchronously moves down to clamp the second powder metal ring, and then when the first powder metal ring is clamped again, the second powder metal ring is synchronously stacked on the first powder metal ring serially connected to the serial threading needle 114, and when the second powder metal ring is clamped again, the first powder metal ring is synchronously stacked on the second powder metal ring serially connected to the serial threading needle 114, and then the transfer slide 112 moves the serially connected pairs of metal rings to the inner side of the second three-axis slide 106 close to it, and moves to just below the second clamper 111 thereon, and then the second three-axis slide 106 moves the second clamper 111 to clamp and move the several pairs of metal rings connected in series to the containing square plate 109. While moving the several pairs of metal rings connected in series, another group of serial threading needles 114 synchronously connects several pairs of metal rings in series under the cooperation of the first three-axis slide 101 and the two groups of first clampers 110 thereon and the first conveyor belt 104 and the second conveyor belt 105. Whenever a row of stacked metal rings is clamped to the containing square plate 109, the containing conveyor chain 108 moves a distance of a metal ring diameter away from the second clamper 111 until the containing square plate 109 is filled with metal rings and taken away. There is no need for the second three-axis slide 106 to position, which shortens the overall placement time and further The efficiency is improved. Through the above structure, multiple superposition processes are carried out synchronously at the same time in each step, thereby eliminating the time period of movement of each moving part in the overall process, thereby fully improving the placement efficiency of the stacked pairs of metal rings on each tray, so that the pairs of metal rings placed in an array can be stacked quickly and well. At the same time, through the first support top seat 103 and the second support top seat 107, the first clamp 110 and the second clamp 111 can be arranged in a whole row or a whole column as needed, or in an array consistent with the distribution array when the powder metal rings are pressed and formed, so as to cooperate with the powder metal ring forming equipment, further compress the time of the powder metal ring before sintering, and improve the overall work efficiency.

[0053] During operation, in the drive box 201, the clamping motor 202 rotates the driving gear 203, thereby synchronously engaging and driving each transmission slide bar 208 of each layer, thereby synchronously gathering or separating each pair of positioning slide blocks 206, and then synchronously gathering or dispersing each clamping vertical rod 209, and clamping the powder metal ring circumferentially and evenly with force to avoid damage to the powder metal ring due to excessive force during clamping. At the same time, the circumferential clamping ensures stable clamping, and the wedge shape of the clamping support hook 210 is convenient for wedging into the gap between the powder metal ring and the surface of the conveyor belt. At the same time, the clamping support hook 210 is evenly distributed circumferentially to support the powder metal ring in the vertical direction, maintaining a more stable support while further reducing the clamping force of the clamping vertical rod 209 to avoid damage to the powder metal ring. When the second clamper 111 clamps several pairs of stacked metal rings, the stretching of the limiting rubber band 212 generates elastic force to ensure The lower end of the clamping vertical rod 209 stably supports the clamping metal ring to avoid the phenomenon of loosening due to the excessive weight of the metal ring, and at the same time can carry large-sized and high-density powder metal rings. In this embodiment, each clamping vertical rod 209 is closed at the initial moment, and then opened to the maximum when moving to the top of the metal ring to be clamped and moved, thereby protecting the elasticity and life of the limiting rubber band 212. At the same time, the clamping vertical rod 209 is located at the corner of the square driving box 201, so that the device can stably clamp the powder metal ring with the largest variable diameter range with the smallest self structure. When clamping, each circumferentially evenly distributed limiting push block 213 pushes and clamps the powder metal ring circumferentially evenly during clamping, so that the powder metal ring always remains coaxial with the driving box 201, avoiding the powder metal ring from shaking due to the friction between the clamping support hook 210 during blanking, and preventing the powder metal ring from being damaged during blanking;

[0054] When the first clamper 110 clamps the powder metal ring and places it on the supporting slide 301, the buffer support of the buffer spring 302 prevents the powder metal ring from being impacted when falling and prevents it from being damaged. At the same time, the duration of each step of the first three-axis slide 101 when moving the first clamper 110 is shortened to improve efficiency. The limiting rubber strip 401 allows the first conveyor belt 104 and the second conveyor belt 105 to limit the metal ring when intermittently conveying the powder metal ring to avoid dislocation.

[0055] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An automatic placement device for ring-shaped parts for metal powder processing, It is characterized in that The invention comprises a first three-axis slide (101), wherein a connecting support frame (102) is installed at the output end of the first three-axis slide (101), and first supporting top seats (103) are installed on both sides of the connecting support frame (102), and a first conveyor belt (104) and a second conveyor belt (105) are respectively provided on both sides of the first three-axis slide (101) and below the position close to the first supporting top seat (103), and a second three-axis slide (106) is provided on the other two sides of the first three-axis slide (101), and a second supporting top seat (107) is installed at the output end of the second three-axis slide (106), and a loading conveyor chain (108) is provided on one side of the second three-axis slide (106). A square plate (109) is placed on the conveyor chain (108); a plurality of first clamps (110) evenly distributed in an array are spliced ​​and installed at the lower part of the first support top seat (103); a plurality of second clamps (111) evenly distributed in an array are spliced ​​and installed at the lower part of the second support top seat (107); a transfer slide (112) is provided below the first clamp (110) and the second clamp (111) and between the first conveyor belt (104) and the second conveyor belt (105); a transfer support seat (113) is slidably installed on the transfer slide (112); and a plurality of serial threading needles (114) are installed on the transfer support seat (113).

2. The automatic placing device for ring-shaped parts for metal powder processing according to claim 1, It is characterized in that The first conveyor belt (104) conveys a plurality of rows of first powder metal rings, the second conveyor belt (105) conveys a plurality of rows of second powder metal rings, a plurality of serial threading needles (114) are divided into two groups, and each group of serial threading needles (114) are evenly distributed at equal intervals, and the number of first clamps (110) on the first support top seat (103), the number of second clamps (111) on the second support top seat (107), the number of each group of serial threading needles (114), and the number of first powder metal rings and second powder metal rings in each row are all consistent.

3. The automatic placing device for ring-shaped parts for metal powder processing according to claim 1, It is characterized in that The first clamp (110) and the second clamp (111) both comprise a drive box (201), a clamping motor (202) being installed in the middle of the inner side of the drive box (201), a driving gear (203) being installed at one end of the driving shaft of the clamping motor (202), and a plurality of limiting sliding grooves (204) uniformly distributed in a circular array are provided through the bottom of the drive box (201).

4. The automatic placing device for ring-shaped parts for metal powder processing according to claim 3, It is characterized in that The number of the limiting slide grooves (204) is an even number, and a plurality of layers of transmission mechanisms in a spirally stacked structure are installed in the drive box (201), and each layer of the transmission mechanism corresponds to two limiting slide grooves (204) located directly below.

5. The automatic placing device for ring-shaped parts for metal powder processing according to claim 4, It is characterized in that The number of the limiting slide grooves (204) is four, and each layer of the transmission mechanism comprises two limiting slide bars (207) symmetrical with respect to the corresponding limiting slide grooves (204). Both ends of the limiting slide bars (207) are fixedly connected to the driving box (201), and a transmission slide bar (208) is slidably connected to the limiting slide bar (207). The two transmission slide bars (208) of each layer are centrally symmetrical with respect to the driving gear (203) and mesh with the driving gear (203) for transmission.

6. The automatic placing device for ring-shaped parts for metal powder processing according to claim 5, It is characterized in that A connecting slider (205) is slidably engaged in the limiting sliding groove (204), a positioning slider (206) is installed on the top of the connecting slider (205), the positioning slider (206) corresponds to and is connected to the transmission sliding rod (208) one by one, the positioning slider (206) is in a triangular structure, one corner of the positioning slider (206) is matched with one corner of the driving box (201) and the other corner is missing.

7. The automatic placing device for ring-shaped parts for metal powder processing according to claim 6, It is characterized in that The lower end of the connecting slider (205) is fixedly connected to a clamping vertical rod (209), the cross section of the clamping vertical rod (209) is triangular, and the hypotenuse side of the lower end of the clamping vertical rod (209) is fixedly connected to a clamping support hook (210), and the other two sides of the lower end of the clamping vertical rod (209) are fixedly connected to installation support hooks (211), and the outer periphery of each clamping vertical rod (209) is sleeved with a limit rubber band (212) through the installation support hook (211).

8. The automatic placing device for ring-shaped parts for metal powder processing according to claim 7, It is characterized in that A mounting limit box (214) is embedded in the middle of the oblique side of the clamping vertical rod (209), a limit spring (215) is installed in the mounting limit box (214), the top end of the limit spring (215) is fixedly connected to the limit push block (213), the tail end of the limit push block (213) is clamped with the port of the mounting limit box (214), the clamping vertical rod (209) of the first clamper (110) is shorter than the clamping vertical rod (209) of the second clamper (111), and the clamping support hook (210) of the first clamper (110) is wedge-shaped.

9. The automatic placing device for ring-shaped parts for metal powder processing according to claim 1, It is characterized in that The transfer support seat (113) is a hollow structure. A buffer spring (302) is sleeved inside the transfer support seat (113) and on each serial threading needle (114). The upper end of the buffer spring (302) is fixedly connected to a support slide (301). The serial threading needle (114) movably passes through the support slide (301), and the lower end of the support slide (301) is movably installed in the transfer support seat (113). The outer peripheral surfaces of the first conveyor belt (104) and the second conveyor belt (105) are provided with a plurality of pairs of equally spaced and uniformly distributed limiting rubber strips (401), and the spacing between each pair of limiting rubber strips (401) is adapted to the diameter of the powder metal ring.

10. An automatic placement device for ring-shaped parts for metal powder processing according to any one of claims 1 to 9, including a working method of the device, It is characterized in that The method comprises the following steps: Step 1: The transfer slide (112) moves the transfer support seat (113), and the first conveyor belt (104) and the second conveyor belt (105) begin to convey the first powder metal ring and the second powder metal ring; Step 2: The first three-axis slide (101) moves the first clamp (110) to clamp and stack the first powder metal ring and the second powder metal ring, and stack them alternately; Step 3: Move the several pairs of metal rings connected in series to the second clamper (111), take them out and move them to the containing square plate (109), and simultaneously connect the several pairs of metal rings of the next group in series; Step 4: The metal rings are continuously clamped onto the square plate (109) until it is full and then taken away.

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