Cam Driven Gripper Feeder

Abstract

The invention discloses a cam-driven clamping feeder, which belongs to the technical field of feeders and solves the problems of work efficiency and reliability. The key points of the technical solution are that the feeder comprises a feeding needle roller platform, a feeding main machine, an eccentric transmission mechanism, and a floating manipulator; the eccentric transmission mechanism comprises an input shaft for connecting a power source and an output shaft for connecting the feeding main machine, and the input shaft and the output shaft are in an eccentric position; the feeding main machine comprises a chassis, a main shaft, an eccentric swing mechanism, a sliding mechanism, and a parallel four-bar linkage mechanism, the main shaft is connected to the output shaft and drives the eccentric swing mechanism and the parallel four-bar linkage mechanism at the same time, the eccentric swing mechanism drives the sliding mechanism to move, the floating manipulator is fixed on the feeding needle roller platform and is above the sliding mechanism, the sliding mechanism and the parallel four-bar linkage mechanism cooperate with the floating manipulator to perform clamping and moving actions, thereby achieving the effect of efficient material transportation and stable and reliable performance.

Description

Technical Field

[0001] The invention relates to the field of feeders, in particular to a cam driven clamping feeder. Background Art

[0002] Generally speaking, there are many types of feeders, and the feeding efficiency and stability of the feeders vary. At present, when feeding workpieces such as copper strips, it is necessary to consider the stable and reliable transportation of the copper strips. During the feeding process, the existing machines are prone to cause surface wear of the copper strips. In addition, the structure is unstable when the feeding is accelerated, and the failure rate is high. The main reason is that the synchronization of the actions is not high and the mechanical wear is serious. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies of the prior art, at least to a certain extent solve the technical problems in the related technology, and provide a cam-driven clamping feeder to achieve the purpose of improving working reliability, transmission efficiency and stability.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a cam driven clamping feeder, comprising a feeding needle roller platform, a feeding main machine, an eccentric transmission mechanism, and a floating manipulator;

[0005] The eccentric transmission mechanism has an input shaft for connecting to a power source and an output shaft for connecting to a feeding host, and the input shaft and the output shaft are in an eccentric position;

[0006] The feeding main machine includes a chassis, a main shaft, an eccentric swing mechanism, a sliding mechanism, and a parallel four-bar linkage. The main shaft is connected to the output shaft and drives the eccentric swing mechanism and the parallel four-bar linkage at the same time. The eccentric swing mechanism drives the sliding mechanism to move. The floating manipulator is fixed on the feeding needle roller platform and is above the sliding mechanism. The sliding mechanism and the parallel four-bar linkage cooperate with the floating manipulator to perform clamping and moving actions.

[0007] As a specific solution of the present invention, it can be preferably: the floating manipulator includes a fixed arm, a guide column assembled in the fixed arm, and a floating claw fixed at the end of the guide column, the fixed arm is provided with a guide groove for the guide column to slide up and down, and the guide groove is equipped with a spring for resisting the rear end of the guide column, and at least two guide columns are provided.

[0008] As a specific solution of the present invention, it can be preferred that: the eccentric swing mechanism includes a base, a driven shaft rotatably connected to the base, and a swing seat fixed to the driven shaft, and the swing seat is provided with a slide groove;

[0009] The sliding mechanism includes a slider that slides in the slide groove, a sliding frame fixed relative to the slider, and a sliding rod fixed horizontally in the chassis. The sliding frame and the sliding rod are sleeved and slide horizontally relative to the sliding rod. A feeding plate is fixed on the sliding frame, and a movable hole is provided in the middle of the feeding plate.

[0010] The parallel four-bar linkage mechanism includes a main connecting rod frame rotatably connected to the chassis, a parallel rod pivotally connected to the end of the connecting rod frame, and a secondary connecting rod frame pivotally connected to the other end of the parallel rod. The end of the main connecting rod frame is provided with a roller part, the middle part of the secondary connecting rod frame is pivotally connected to the chassis, and the middle part of the parallel rod is provided with a feeding part, which is located in the movable hole of the feeding plate.

[0011] The main shaft is provided with a curved cam, a first eccentric cam and a second eccentric cam. The driven shaft is attached to the curved cam and is swung back and forth at a fixed angle by the action of the curved surface. The synchronous swing of the swing seat is used to drive the slider to slide in the slide groove. The slider drives the sliding frame to slide synchronously in parallel. The main connecting rod frame is attached to the first eccentric cam and the second eccentric cam through the roller part and is driven by the main shaft to swing up and down. The main connecting rod drives the parallel rod to move horizontally and float up and down.

[0012] As a specific solution of the present invention, it can be preferred that: an amplitude modulation mechanism for adjusting the initial position of the slider on the slide seat is provided between the sliding mechanism and the slide seat;

[0013] The amplitude modulation mechanism comprises a lead screw rotatably mounted on a sliding frame, and an operating mechanism for driving the lead screw to rotate. The lead screw is inserted into the sliding block and cooperates with the sliding block thread to drive the sliding block to move axially.

[0014] As a specific solution of the present invention, it can be preferably: the operating mechanism includes a reversing gear rod, an operating gear rod, and an operating handle mounted on a rotating frame on a box body, the reversing gear rod is provided with a plurality of reversing gears, the reversing gear rod is connected to a lead screw through a reversing gear transmission, and is connected to the operating gear rod through a second reversing gear, the operating gear rod and the reversing gear rod form an angle of 90 degrees, and the operating handle is fixed at the end of the operating gear rod and is outside the box body.

[0015] As a specific solution of the present invention, it may be preferred that: the floating manipulator is fixedly mounted on the feeding plate to move horizontally.

[0016] As a specific solution of the present invention, it can be preferably: two floating manipulators are arranged, one is fixed on the feeding plate to perform horizontal following movement, and the other is fixed on the feeding needle roller platform, an ejection mechanism is arranged under the second floating manipulator, and the ejection mechanism includes an adjusting seat, a limiting seat, and an ejection block; the adjusting seat is assembled with the bottom of the limiting seat through a long screw and adjusts the height of the limiting seat, a limiting groove is arranged on the limiting seat, a protrusion is arranged on the main connecting rod frame, the protrusion extends into the limiting groove, and the ejection block is slidably assembled on the limiting seat and is supported by the protrusion for ejection.

[0017] As a specific solution of the present invention, it can be preferably: the eccentric transmission mechanism includes a front mounting plate, a rocker arm, an intermediate mounting plate, and a rear mounting plate, the end surfaces of the front mounting plate, the intermediate mounting plate and the rear mounting plate are respectively provided with axial holes, the two ends of the rocker arm are provided with shaft portions matching the axial holes, the axial holes on the front mounting plate, the intermediate mounting plate and the rear mounting plate are evenly distributed circumferentially and at least three are respectively provided, the front mounting plate is connected to the intermediate mounting plate through at least three rocker arms, the intermediate mounting plate is also connected to the rear mounting plate through at least three rocker arms, the front mounting plate has an input shaft, and the rear mounting plate has an output shaft.

[0018] As a specific solution of the present invention, it may be preferred that the front mounting plate, the middle mounting plate, and the rear mounting plate have the same size.

[0019] The technical effects of the present invention are mainly reflected in the following aspects:

[0020] 1. The installation requirements of the power motor are reduced, and it does not need to be installed in a coaxial position, which makes the equipment installation more convenient and improves the installation efficiency of the machine equipment and the adaptability of the installation environment;

[0021] 2. The feeding needle roller platform can reduce the contact area during material transmission and improve the integrity of the material;

[0022] 3. The feeding host cooperates with the floating manipulator to realize the clamping, pushing and transmission of materials. The design of the feeding host has high structural integration, full space utilization, small overall volume, easy operation and adjustment, and can realize material pushing stably and reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure in the embodiment;

[0024] Figure 2 It is a structural schematic diagram of the floating manipulator in the embodiment;

[0025] Figure 3 It is a structural cross-sectional view of the floating manipulator in the embodiment;

[0026] Figure 4This is a structural disassembly diagram of the feeding main machine in the embodiment;

[0027] Figure 5 It is a structural schematic diagram of the main shaft in the embodiment;

[0028] Figure 6 Schematic diagram of the structure of the eccentric swing mechanism in the embodiment;

[0029] Figure 7 This is a schematic diagram of the sliding mechanism structure in the embodiment;

[0030] Figure 8 It is a diagram showing the coordination structure of the parallel four-bar linkage mechanism and the ejection mechanism in the embodiment.

[0031] Figure numerals: 1, chassis; 2, main shaft; 21, curved cam; 22, first eccentric cam; 23, second eccentric cam; 3, eccentric swing mechanism; 31, base; 32, driven shaft; 321, shaft body; 322, roller sleeve; 323, roller shaft; 33, swing seat; 34, slide; 4, amplitude modulation mechanism; 41, lead screw; 42, operating mechanism; 421, reversing gear rod; 422, operating gear rod; 423, operating handle; 424, reversing gear; 5, sliding mechanism; 51, slider; 52, sliding frame; 53, slide rod; 54, feeding plate; 55, movable hole; 6, parallel four-bar linkage; 61, main connecting rod frame; 62, parallel rod; 63, auxiliary connecting rod frame; 64, roller; 65, feeding part;

[0032] 7. Feeding needle roller platform; 71. Needle roller seat; 72. Needle roller shaft; 8. Feeding main machine; 9. Eccentric transmission mechanism; 91. Input shaft; 92. Output shaft; 93. Front mounting plate; 94. Middle mounting plate; 95. Rear mounting plate; 96. Shaft hole; 97. Rocker arm; 98. Shaft;

[0033] 10. Floating manipulator; 101. Fixed arm; 102. Guide column; 103. Floating claw; 104. Guide groove; 105. Spring; 11. Ejection mechanism; 111. Adjustment seat; 112. Limit seat; 113. Ejection block; 114. Limit groove; 115. Bump; 116. Long screw. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention so that the technical solution of the present invention is easier to understand and grasp, but should not be understood as a limitation to the present invention.

[0035] Example:

[0036] A cam driven clamp feeder, reference Figure 1As shown, it includes a feeding needle roller platform 7, a feeding main machine 8, an eccentric transmission mechanism 9, and a floating manipulator 10. The feeding needle roller platform 7 is assembled and carried on the top of the feeding main machine 8. Figure 2 The structure of the feeding needle roller platform 7 is mainly composed of a needle roller seat 71 and a needle roller shaft 72. The needle roller seat 71 is equipped with a needle roller shaft 72 to make the needle roller shaft 72 higher than the surface of the working platform, so as to realize the rolling transmission of the workpiece by the needle roller shaft 72. It should be noted that the product of this design is used to convey belt-shaped workpieces, such as copper belts, metal sheets or metal belts. Due to the use of rolling friction, the friction force is small and the impact on the workpiece surface is less.

[0037] The workpiece is placed on the feeding needle roller platform 7, and the workpiece is grasped and transported by two floating manipulators 10 in cooperation with the driving of the feeding main machine 8.

[0038] In order to solve the position requirements of the assembly structure, since in the engineering environment, the power source is generally set at a fixed position, and the coaxial drive cannot overcome the problem of placement space. In order to adapt to the installation space change, it is necessary to overcome the coaxial drive problem.

[0039] The eccentric transmission mechanism 9 solves the problem of the misalignment of the installation position of the power source and the installation position of the feeder mainframe 8. The eccentric transmission mechanism 9 compensates for the misalignment of the drive connection between the two, and this structure can stably perform eccentric transmission. Specifically, the eccentric transmission mechanism 9 has an input shaft 91 for connecting the power source and an output shaft 92 for connecting the feeder mainframe 8, and the input shaft 91 and the output shaft 92 are in an eccentric position.

[0040] refer to Figure 1 The eccentric transmission mechanism 9 includes a front mounting plate 93, a rocker arm 97, an intermediate mounting plate 94, and a rear mounting plate 95. The end surfaces of the front mounting plate 93, the intermediate mounting plate 94, and the rear mounting plate 95 are respectively provided with shaft holes 96. The two ends of the rocker arm 97 are provided with shaft portions 98 matching the shaft holes 96. The shaft holes 96 on the front mounting plate 93, the intermediate mounting plate 94, and the rear mounting plate 95 are evenly distributed in the circumferential direction and are respectively provided with at least three. The front mounting plate 93 is connected to the intermediate mounting plate 94 through at least three rocker arms 97, and the intermediate mounting plate 94 is also connected to the rear mounting plate 95 through at least three rocker arms 97. The front mounting plate 93 is provided with an input shaft 91, and the rear mounting plate 95 is provided with an output shaft 92. In this scheme, three rocker arms 97 are provided, and the connection positions of the ends of the three rocker arms 97 are in a circular trisection position. In order to facilitate assembly and simplify processing design, the front mounting plate 93, the intermediate mounting plate 94, and the rear mounting plate 95 are of the same size.

[0041] refer to Figure 2 and Figure 3As shown, the floating manipulator 10 includes a fixed arm 101, a guide column 102 assembled in the fixed arm 101, and a floating claw 103 fixed at the end of the guide column 102. The fixed arm 101 is provided with a guide groove 104 for the guide column 102 to slide up and down, and the guide groove 104 is equipped with a spring 105 for resisting the rear end of the guide column 102. At least two guide columns 102 are provided. Through two parallel guide columns 102, the floating claw 103 can stably and reliably achieve up and down movement. Due to the thrust of the spring 105, the floating claw 103 remains stationary. When there is an external force pushing the floating claw 103 upward, the floating claw 103 compresses the spring 105. In this solution, the feeding part 65 of the feeding main machine 8 will push the material up and form a clamping force with the floating claw 103, and the feeding part 65 can translate to push the material.

[0042] Continue to refer Figure 4 and Figure 5 As shown, after the rotational power is transmitted to the main shaft 2 of the feeding main machine 8, in order to improve the mechanical efficiency, the feeding main machine 8 adopts one main shaft 2 to realize the action of all feeding mechanical parts.

[0043] The feeding main machine 8 includes a chassis 1, a main shaft 2, an eccentric swing mechanism 3, a sliding mechanism 5, and a parallel four-bar linkage 6. The main shaft 2 is connected to the output shaft 92 and drives the eccentric swing mechanism 3 and the parallel four-bar linkage 6 at the same time. The eccentric swing mechanism 3 drives the sliding mechanism 5 to move. The floating manipulator 10 is fixed on the feeding needle roller platform 7 and is above the sliding mechanism 5. The sliding mechanism 5 and the parallel four-bar linkage 6 cooperate with the floating manipulator 10 to perform clamping and moving actions.

[0044] Specific references Figure 6 As shown, the eccentric swing mechanism 3 includes a base 31, a driven shaft 32 rotatably connected to the base 31, and a swing seat 33 fixed to the driven shaft 32, and a slide groove 34 is provided on the swing seat 33. The base 31 is fixed to the bottom of the chassis 1, and a bearing is assembled between the base 31 and the driven shaft 32 to achieve rotation. The driven shaft 32 includes a shaft body 321, a roller sleeve 322, and a roller part 323. The shaft body 321 is vertically rotatably connected to the base 31, and the side wall of the shaft body 321 is fixedly connected to two roller parts 323, each roller part 323 is sleeved with a roller sleeve part 322, and the two roller sleeve parts 322 are attached to the curved cam 21. The curved cam 21 is a component on the main shaft 2. The main shaft 2 is provided with a curved cam 21, a first eccentric cam 22, and a second eccentric cam 23. The left and right sides of the curved cam 21 are attached to the shaft sleeve part, and two roller parts 323 are provided to reduce space occupation. Due to the rotation process of the curved cam 21, the shaft sleeve part realizes rolling friction, thereby greatly reducing mechanical wear and extending the service life. When the driven shaft 32 swings back and forth at an angle, the swing seat 33 also follows.

[0045] Combination Figure 4 and Figure 7 As shown, the sliding mechanism 5 includes a slider 51 that slides in the slide groove 34, a sliding frame 52 that is relatively fixed to the slider 51, and a sliding rod 53 that is fixed and arranged horizontally in the chassis 1. The sliding frame 52 and the sliding rod 53 are sleeved and slide relative to the sliding rod 53. A feed plate 54 is fixed on the sliding frame 52, and a movable hole 55 is arranged in the middle of the feed plate 54. When the swing seat 33 swings, the slider 51 slides under the force of the swing seat 33. The slider 51 and the sliding frame 52 are relatively fixed, and the whole slides on the sliding rod 53 under the limit of the swing seat 33 on the sliding rod 53. At this time, the sliding length of the sliding frame 52 is limited by the distance between the slider 51 and the rotation center of the swing seat 33.

[0046] In order to adjust the sliding stroke, that is, the feeding length, an amplitude modulation mechanism 4 is designed.

[0047] refer to Figure 7 and Figure 8 As shown, the amplitude modulation mechanism 4 includes a lead screw 41 rotatably mounted on a sliding frame 52, and an operating mechanism 42 for driving the lead screw to rotate. The lead screw 41 is inserted into the slider 51 and threadedly cooperates with the slider 51 to drive the slider 51 to move axially.

[0048] The operating mechanism 42 includes a reversing gear 424 rod 421 mounted on a rotating frame on a box body, an operating gear rod 422, and an operating handle 423. The reversing gear 424 rod 421 is provided with a plurality of reversing gears 424, the reversing gear 424 rod 421 is connected to the lead screw 41 through a reversing gear 424, and is connected to the operating gear rod 422 through a second reversing gear 424, the operating gear rod 422 and the reversing gear 424 rod 421 form an angle of degrees, and the operating handle 423 is fixed to the end of the operating gear rod 422 and is outside the box body.

[0049] The operating handle 423 is outside the box for easy control by the staff. By rotating the operating handle 423, the operating gear rod 422 rotates, driving the reversing gear 424 to rotate, thereby realizing transmission, which drives the reversing gear 424 rod 421 to rotate, and then drives the lead screw 41 to rotate, thereby realizing the movement of the slider 51 along the axial direction of the lead screw 41, realizing the change of the position of the slider 51 on the slide groove 34, thereby adjusting the force arm between the slider 51 and the swing seat 33.

[0050] Combination Figure 4 , Figure 7 and Figure 8The parallel four-bar linkage 6 includes a main link frame 61 rotatably connected to the chassis 1, a parallel rod 62 pivotally connected to the end of the link frame, and a secondary link frame 63 pivotally connected to the other end of the parallel rod 62. A roller portion 64 is provided at the end of the main link frame 61, a middle portion of the secondary link frame 63 is pivotally connected to the chassis 1, and a feeding portion 65 is provided at the middle portion of the parallel rod 62, and the feeding portion 65 is located in the movable hole 55 of the feeding plate 54.

[0051] There are four pivoted active points on the main connecting rod frame 61, the parallel rod 62, and the auxiliary connecting rod frame 63, which constitute a quadrilateral structure. The four positions are designed to form four points of the parallelogram. According to the mechanical connecting rod driving principle, when the main connecting rod frame 61 is driven by the main shaft 2 to swing, the parallel rod 62 also moves with it, so that the feeding part 65 on the parallel rod 62 moves and floats. This movement mode is conducive to the rapid transportation of strip materials. Two roller parts 64 are set on the main connecting rod frame 61 to reduce wear and improve transmission reliability.

[0052] It can be seen that the driven shaft 32 is attached to the curved cam 21 and is swung back and forth at a fixed angle by the action of the curved surface. The swing seat 33 swings synchronously to drive the slider 51 to slide in the slide groove 34. The slider 51 drives the sliding frame 52 to slide synchronously and in parallel. The main connecting rod frame 61 is attached to the first eccentric cam 22 and the second eccentric cam 23 through the roller portion 64 and is driven by the main shaft 2 to swing up and down. The main connecting rod drives the parallel rod 62 to move horizontally and float up and down.

[0053] Back to Figure 1 and Figure 2 As shown, the floating manipulator 10 is fixedly mounted on the feeding plate 54 for horizontal movement. In this solution, in order to further improve the feeding speed and feeding stability, two floating manipulators 10 are provided. One is fixed on the feeding plate 54 for horizontal following movement, and the other is fixed on the feeding needle roller platform 7. An ejection mechanism 11 is provided below the second floating manipulator 10, Figure 4 and Figure 8 As shown, the ejection mechanism 11 includes an adjustment seat 111, a limit seat 112, and an ejection block 113. The adjustment seat 111 is assembled with the bottom of the limit seat 112 through a long screw and adjusts the height of the limit seat 112. The limit seat 112 is provided with a limit groove 114, and the main connecting rod frame 61 is provided with a protrusion 115, which extends into the limit groove 114. The ejection block 113 is slidably assembled on the limit seat 112 and is supported by the protrusion 115 for ejection.

[0054] During the working process, since the main connecting frame is driven by the main shaft 2, the main connecting frame swings, and the protrusion 115 uses the lever principle to continuously act on the ejection block 113, so that the ejection block 113 continuously rises and falls. The up and down rise and fall of the ejection block 113 enables the second floating manipulator 10 to clamp the material.

[0055] In this solution, the spindle 2 works, so that the feeding part 65 moves up and down and forward and backward, and the feeding plate 54 moves forward and backward. When the feeding part 65 rises, the ejection block 113 falls, and when the feeding part 65 falls, the ejection block 113 rises, and the dislocation works. The top of the feeding part 65 faces a floating manipulator 10, and the top of the ejection block 113 faces a floating manipulator 10.

[0056] It can be seen that the installation requirements of the power motor of this solution are reduced, and it does not need to be installed in a coaxial position, which makes the equipment installation more convenient and improves the installation efficiency of the machine equipment and the adaptability of the installation environment. The feeding needle platform 7 can reduce the contact area during the material transmission process and improve the integrity of the material. The feeding host 8 cooperates with the floating manipulator 10 to achieve the clamping, pushing and transmission of the material. The design of the feeding host 8 has a high degree of structural integration, sufficient space utilization, and a small overall volume. It is easy to operate and adjust, and can stably and reliably achieve material pushing.

[0057] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A cam driven clamping feeder, characterized in that: It includes a feeding needle roller platform, a feeding main machine, an eccentric transmission mechanism, and a floating manipulator; The eccentric transmission mechanism has an input shaft for connecting to a power source and an output shaft for connecting to a feeding host, and the input shaft and the output shaft are in an eccentric position; The feeding main machine includes a chassis, a main shaft, an eccentric swing mechanism, a sliding mechanism, and a parallel four-bar linkage. The main shaft is connected to the output shaft and drives the eccentric swing mechanism and the parallel four-bar linkage at the same time. The eccentric swing mechanism drives the sliding mechanism to move. The floating manipulator is fixed on the feeding needle roller platform and is above the sliding mechanism. The sliding mechanism and the parallel four-bar linkage cooperate with the floating manipulator to perform clamping and moving actions. The floating manipulator comprises a fixed arm, a guide column assembled in the fixed arm, and a floating claw fixed at the end of the guide column. The fixed arm is provided with a guide groove for the guide column to slide up and down. The guide groove is provided with a spring for resisting the rear end of the guide column. At least two guide columns are provided. The eccentric transmission mechanism includes a front mounting plate, a rocker arm, an intermediate mounting plate, and a rear mounting plate. The end surfaces of the front mounting plate, the intermediate mounting plate, and the rear mounting plate are respectively provided with axial holes. The two ends of the rocker arm are provided with shaft portions matching the axial holes. The axial holes on the front mounting plate, the intermediate mounting plate, and the rear mounting plate are evenly distributed circumferentially and are respectively provided with at least three. The front mounting plate is connected to the intermediate mounting plate through at least three rocker arms, and the intermediate mounting plate is also connected to the rear mounting plate through at least three rocker arms. The front mounting plate is provided with an input shaft, and the rear mounting plate is provided with an output shaft.

2. The cam driven clamping feeder according to claim 1, characterized in that: The eccentric swing mechanism comprises a base, a driven shaft rotatably connected to the base, and a swing seat fixed to the driven shaft, wherein a slide groove is provided on the swing seat; The sliding mechanism includes a slider that slides in the slide groove, a sliding frame fixed relative to the slider, and a sliding rod fixed horizontally in the chassis. The sliding frame and the sliding rod are sleeved and slide horizontally relative to the sliding rod. A feeding plate is fixed on the sliding frame, and a movable hole is provided in the middle of the feeding plate. The parallel four-bar linkage mechanism includes a main connecting rod frame rotatably connected to the chassis, a parallel rod pivotally connected to the end of the connecting rod frame, and a secondary connecting rod frame pivotally connected to the other end of the parallel rod. The end of the main connecting rod frame is provided with a roller part, the middle part of the secondary connecting rod frame is pivotally connected to the chassis, and the middle part of the parallel rod is provided with a feeding part, which is located in the movable hole of the feeding plate. The main shaft is provided with a curved cam, a first eccentric cam and a second eccentric cam. The driven shaft is attached to the curved cam and is swung back and forth at a fixed angle by the action of the curved surface. The synchronous swing of the swing seat is used to drive the slider to slide in the slide groove. The slider drives the sliding frame to slide synchronously in parallel. The main connecting rod frame is attached to the first eccentric cam and the second eccentric cam through the roller part and is driven by the main shaft to swing up and down. The main connecting rod drives the parallel rod to move horizontally and float up and down.

3. The cam driven clamping feeder according to claim 2, characterized in that: An amplitude modulation mechanism for adjusting the initial position of the slider on the slide seat is provided between the sliding mechanism and the slide seat; The amplitude modulation mechanism comprises a lead screw rotatably mounted on a sliding frame, and an operating mechanism for driving the lead screw to rotate. The lead screw is inserted into the sliding block and cooperates with the sliding block thread to drive the sliding block to move axially.

4. The cam driven clamping feeder according to claim 3, characterized in that: The operating mechanism includes a reversing gear rod mounted on a rotating frame on a box body, an operating gear rod, and an operating handle. The reversing gear rod is provided with a plurality of reversing gears. The reversing gear rod is connected to a lead screw through a reversing gear transmission and is connected to the operating gear rod through a second reversing gear. The operating gear rod and the reversing gear rod form an angle of 90 degrees. The operating handle is fixed at the end of the operating gear rod and is outside the box body.

5. The cam driven clamping feeder according to claim 4, characterized in that: The floating manipulator is fixedly mounted on the feeding plate for horizontal movement.

6. The cam driven clamping feeder according to claim 4, characterized in that: Two floating manipulators are provided, one is fixed on the feeding plate for horizontal following movement, and the other is fixed on the feeding needle roller platform. An ejection mechanism is provided under the second floating manipulator, and the ejection mechanism includes an adjustment seat, a limit seat, and an ejection block; the adjustment seat is assembled with the bottom of the limit seat through a long screw and adjusts the height of the limit seat, a limit groove is provided on the limit seat, a protrusion is provided on the main connecting rod frame, and the protrusion extends into the limit groove, and the ejection block is slidably assembled on the limit seat and is supported by the protrusion for ejection.

7. The cam driven clamping feeder according to claim 1, characterized in that: The front mounting plate, the middle mounting plate, and the rear mounting plate are of the same size.

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