Spin riveting device for saw chain assembly and saw chain assembly production equipment

Abstract

The utility model provides a spin riveting device for saw chain assembly and saw chain assembly production equipment, the spin riveting device for saw chain assembly comprises a base, a pair of spin riveting assemblies and a push claw assembly, and each spin riveting assembly comprises a first servo motor, a ball screw, a second servo motor and a riveting head; the pair of push claws are fixedly mounted on one sides of the mounting plates respectively, and the mounting plates are fixed through the rigid connecting pieces, so that when the linear motor drives the sliding blocks to move, the pair of sliding blocks are rigidly connected, and the moving direction and the moving distance between the pair of sliding blocks are always the same; therefore, the consistency of movement between the pair of pushing claws is guaranteed, the pair of pushing claws can always tension the saw chain part located between the pair of pushing claws, it is guaranteed that the saw chain part located between the pair of pushing claws is in a straightened state, and due to the consistency of movement between the pair of pushing claws, the saw chain part can be straightened. The problems that according to an existing spin riveting device for saw chain assembling, a push pawl is not accurate in positioning, and stability is poor are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to saw chain production equipment technical field, concretely relates to a kind of rotary riveting device and saw chain assembly production equipment for saw chain assembly. BACKGROUND

[0002] Saw chain is a kind of chain used for cutting, usually by cutter head, middle guide tooth, connecting piece and rivet. Saw chain is hinged by multiple chain links, and the adjacent two chain links are connected by connecting piece and rivet. In the production process of saw chain, the riveting between connecting piece and rivet is usually completed by riveting equipment, for example, the connection between connecting piece and rivet is realized by rotary riveting equipment.

[0003] Since there is a gap between the chain links of saw chain, when the connecting piece at a certain position on the saw chain is conveyed forward after riveting to rivet the connecting piece at the next position, due to the gap between the chain links that can move forward and backward, the riveting position of the next connecting piece cannot be exactly below the riveting head, at this time, the corresponding driving device is needed to realize the synchronous movement between the chain links.

[0004] In related prior art, the structure for realizing the synchronous movement between the chain links in the rotary riveting device for saw chain assembly generally includes driving structure composed of cam mechanism, triangular claw and push rod, and the driving structure has long transmission stroke in use, so that the synchronism of the front and rear push claws when pushing the saw chain to move is not ideal, and there are problems of inaccurate positioning and poor stability. UTILITY MODEL CONTENTS

[0005] In view of the defects in the prior art, the purpose of the utility model is to provide a rotary riveting device for saw chain assembly and a saw chain assembly production equipment to solve the problems of inaccurate positioning and poor stability of the push claw in the existing rotary riveting device for saw chain assembly.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] In the first aspect, the application provides a rotary riveting device for saw chain assembly, which includes a base, a pair of rotary riveting assemblies and a push claw assembly. The rotary riveting assembly includes a first servo motor, a ball screw, a second servo motor and a riveting head. The pair of rotary riveting assemblies are arranged in front of and behind the base. The first servo motor is fixedly installed on the base, and the second servo motor is arranged above the base and is in sliding connection with the base in the vertical direction. The first servo motor is connected with the second servo motor through the ball screw, and the first servo motor is used to drive the second servo motor to move up and down. The riveting head is fixedly installed on the output end of the second servo motor. The push claw assembly includes a synchronous driving unit and a pair of push claws. The synchronous driving unit is fixedly connected with the pair of push claws, and the push claws are used to push the saw chain to move forward and backward.

[0008] Further, the synchronous driving unit comprises a linear motor and a linear guide rail, the linear motor is connected with the linear guide rail, the linear guide rail comprises a pair of sliders, a pair of push claws are fixedly installed on the pair of sliders respectively, and the pair of push claws are fixedly connected through the rigid connecting piece.

[0009] Further, the synchronous driving unit further comprises a pair of mounting plates, the pair of mounting plates are fixedly installed on the upper end faces of the pair of sliders respectively, one end of the pair of push claws is fixedly installed on one side of the pair of mounting plates respectively, and the opposite ends of the rigid connecting piece are fixedly installed between the pair of mounting plates.

[0010] Further, the rigid connecting piece comprises a threaded rod, and the opposite ends of the threaded rod are fixedly installed on the pair of mounting plates in a threaded mode.

[0011] Further, the base is fixedly installed with a vertically-arranged sliding sleeve, the bottom end of the second servo motor is fixedly installed with a vertically-downwardly-extending guide rod, the guide rod is vertically slidably installed in the inner cavity of the sliding sleeve, and the bottom end of the guide rod is connected with the ball screw transmission through a connecting plate.

[0012] Further, the connecting plate is provided with a avoiding slot for avoiding the guide rod.

[0013] Further, the push claw assembly is installed on the base, and the push claw assembly is arranged between the first servo motor and the second servo motor.

[0014] In the second aspect, the application further provides a saw chain assembling and producing equipment, which comprises a rack and a saw chain assembling riveting device as described above.

[0015] The application has the following beneficial effects:

[0016] By adopting the above-mentioned saw chain assembly riveting device, a pair of push claws are driven by a synchronous driving unit, the synchronous driving unit is composed of a linear motor and a linear guide rail, a pair of sliders are arranged on the linear guide rail, an installation plate is fixedly installed on the upper end surface of the pair of sliders, the pair of push claws are respectively fixedly installed on one side of the installation plate, and the installation plates are fixed by a rigid connecting piece. When the linear motor drives the sliders to move, the movement direction and distance of the pair of sliders are always the same due to the rigid connection between the pair of sliders, thereby ensuring the consistency of the movement of the pair of push claws, so that the distance between the pair of push claws is always fixed during the movement of the pair of push claws. When the pair of push claws drive the saw chain to move forward, the pair of push claws can always tension the saw chain part located between the pair of push claws, so that the saw chain part located between the pair of push claws is in a straightened state. Due to the consistency of the movement of the pair of push claws, the problems of inaccurate positioning and poor stability of the existing saw chain assembly riveting device are solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the saw chain assembly production equipment in the embodiment of the present application.

[0018] Figure 2 It is a three-dimensional structure schematic diagram of the saw chain assembly riveting device in the embodiment of the present application.

[0019] Figure 3 It is a structure schematic diagram of the adjusting assembly and the pressure head installed in the inside of the saw chain assembly riveting device in the embodiment of the present application.

[0020] Figure 4 It is a side view structure schematic diagram of the saw chain assembly riveting device in the embodiment of the present application.

[0021] Figure 5 It is a structure schematic diagram of A in Figure 2

[0022] Figure 6 It is a structure schematic diagram of B in Figure 3

[0023] In the figure:

[0024] 10-saw chain assembly production equipment;

[0025] ​​20 - a riveting device for saw chain assembly, 21 - a base, 22 - a riveting assembly, 221 - a first servo motor, 222 - a ball screw, 223 - a second servo motor, 224 - a riveting head, 23 - a push jaw assembly, 231 - a linear motor, 232 - a linear guide rail, 233 - a sliding block, 234 - a mounting plate, 2341 - a clearance groove, 235 - a push jaw, 24 - a connecting plate, 25 - a sliding sleeve, 26 - a guide rod;

[0026] 30 - a frame. DETAILED DESCRIPTION

[0027] The utility model will be made further detailed explanation in combination with the specific embodiments of the description and the drawings.

[0028] Referring to the drawings Figure 1 to the drawings Figure 2 As shown in the drawings, the embodiment provides a saw chain assembly production equipment 10, including frame 30 and riveting device for saw chain assembly 20, riveting device for saw chain assembly 20 is installed on frame 30, and riveting device for saw chain assembly 20 is used to rivet the rivet for connecting sheet and riveting.

[0029] Referring to the drawings Figure 2 to the drawings Figure 4 As shown in the drawings, in the embodiment, the riveting device for saw chain assembly includes a base 21, a pair of riveting assemblies 22 and a push jaw assembly 23, and the riveting assembly 22 includes a first servo motor 221, a ball screw 222, a second servo motor 223 and a riveting head 224.

[0030] The base 21 is fixedly installed on the frame, the first servo motor 221 is fixedly installed on the base 21, the second servo motor 223 is arranged on the upper side of the base 21, and the second servo motor 223 is arranged opposite to the first servo motor 221, that is, the first servo motor 221 and the second servo motor 223 are respectively arranged on the inner side and the outer side of the base 21.

[0031] In some embodiments, a sliding sleeve 25 extending vertically downward is installed at the bottom end of the base 21, a guide rod 26 arranged vertically is fixedly installed at the bottom end of the second servo motor 223, the guide rod 26 extends into the inner cavity of the sliding sleeve 25, and the guide rod 26 and the sliding sleeve 25 form a vertical lifting and sliding connection.

[0032] Referring to the drawings Figure 2 and the drawings Figure 4As shown, the ball screw 222 is installed at the bottom end of the first servo motor 221, the ball screw 222 is connected with the output shaft of the first servo motor 221, and the first servo motor 221 is used to drive the ball screw 222 to act. In order to better describe, the ball screw 222 includes a first screw rod and a first nut, the output end of the first servo motor 221 is fixedly connected with the nail end of the first screw rod, the bottom end of the first screw rod is rotatably installed on the rack, and the first nut is installed on the first screw rod.

[0033] The first nut is fixedly connected with the bottom end of the guide rod 26 through the connecting plate 24, so that under the driving of the first servo motor 221, the ball screw 222 can drive the guide rod 26 to move up and down through the connecting plate 24, and the guide rod 26 in turn drives the second servo motor 223 to move up and down.

[0034] It can be understood that by controlling the first servo motor 221 to rotate forward or reversely, the first nut can be driven to rise or fall by the first screw rod, and the first nut in the rising or falling state in turn drives the second servo motor 223 to rise or fall through the connecting plate 24.

[0035] Referring to FIGS. 1, 2 and 3, Figure 2 , FIG. 4, Figure 4 and FIG. 5, Figure 5 the riveting head 224 is fixedly installed on the output end of the second servo motor 223, and in use, the second servo motor 223 drives the riveting head 224 to rotate to rivet the connecting piece and the rivet.

[0036] In the embodiment, the push claw assembly 23 includes a synchronous driving unit and a pair of push claws 235, the synchronous driving unit is fixedly connected with the pair of push claws 235, and the push claws 235 are used to push the saw chain to move forward and backward. The synchronous driving unit is used to drive the pair of push claws 235 to move synchronously, that is, the movement consistency between the pair of push claws 235.

[0037] Specifically, the synchronous drive unit includes a linear motor 231 and a linear guide rail 232. The linear motor 231 is connected to the linear guide rail 232. The linear guide rail 232 includes a pair of sliders 233 and a pair of pushers 235, which are respectively fixedly mounted on the pair of sliders 233. Mounting plates 234 are fixedly mounted on the upper surfaces of the pair of sliders 233. One end of each pair of pushers 235 is fixedly mounted on one side of the pair of mounting plates 234. The pair of mounting plates 234 are fixedly connected by a rigid connector. Due to the rigid connector, the distance between the pair of mounting plates 234 remains constant. Therefore, when the linear motor 231 moves the pair of sliders 233, the distance between them does not change. Consequently, the direction and distance of movement of the pair of sliders 233 are always the same, ensuring the consistency of movement of the pair of pushers 235. This guarantees that the distance between the two pushers 235 remains constant during movement. When the pusher claws 235 drive the saw chain forward, the pair of pusher claws 235 can always keep the saw chain portion between them taut, ensuring that the saw chain portion between them is in a straight state. In this way, when the rivet head 224 rivets the connecting piece and the rivet, after the rivet head 224 completes the riveting action of the previous connecting piece, the linear motor 231 drives the pair of pusher claws 235 to move forward synchronously. The pair of pusher claws 235 then synchronously drive the saw chain forward. Since in this embodiment, the pair of pusher claws 235 move synchronously and the distance between the pair of pusher claws 235 is fixed, it can be understood that the distance between the pair of pusher claws 235 can keep the saw chain portion between the pair of pusher claws 235 in a taut state. For example, the distance between the pair of pusher claws 235 is equal to or slightly greater than the length of the saw chain when it is taut between the pair of pusher claws 235. In this way, after the pair of pusher claws 235 drives the saw chain forward each time, the distance the saw chain moves is the same each time. Thus, the riveting position of the connecting piece is the same each time, ensuring the accuracy of the riveting position of the connecting piece.

[0038] See attached document Figure 3 and attached Figure 6 As shown, in some embodiments, the rigid connector includes a threaded rod with its opposite ends threadedly fixed to a pair of mounting plates 234.

[0039] See attached document Figure 2 and attached Figure 3 As shown, the pusher assembly 23 is mounted on the base 21 and is positioned between the first servo motor 221 and the second servo motor 223. By arranging the pusher assembly 23 between the first servo motor 221 and the second servo motor 223, the internal space of the entire device is effectively utilized.

[0040] See attached document Figure 2, attached Figure 5 and attached Figure 6 As shown in the drawings, since the pushing claw 235 reciprocates forward and backward during the working process, in order to avoid interference with the guide rod 26, the connecting plate 24 is provided with a avoiding slot 2341 for avoiding the guide rod 26, and the avoiding slot 2341 can make the connecting plate 24 not interfere with the guide rod 26 during the movement of following the sliding block 233.

[0041] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A spin-riveting device for saw chain assembly, characterized in that The device comprises a base, a pair of spin riveting assemblies and a push claw assembly, the spin riveting assembly comprises a first servo motor, a ball screw, a second servo motor and a riveting head, the pair of spin riveting assemblies are arranged in front and back on the base, the first servo motor is fixedly installed on the base, the second servo motor is arranged above the base, the second servo motor is in sliding connection with the base in the vertical direction, the first servo motor is connected with the second servo motor through the ball screw, the first servo motor is used to drive the second servo motor to move up and down, the riveting head is fixedly installed on the output end of the second servo motor, the push claw assembly comprises a synchronous driving unit and a pair of push claws, the synchronous driving unit is fixedly connected with the pair of push claws, and the push claws are used to push the saw chain to move forward and backward.

2. A spin-riveting device for saw chain assembly according to claim 1, characterized in that The synchronous driving unit comprises a linear motor and a linear guide rail, the linear motor is connected with the linear guide rail, the linear guide rail comprises a pair of sliders, a pair of the push claws are fixedly installed on a pair of the sliders respectively, and a pair of the push claws are fixedly connected through the rigid connecting piece.

3. A spin-riveting device for saw chain assembly according to claim 2, characterized in that The synchronous driving unit further comprises a pair of mounting plates, a pair of the mounting plates are fixedly installed on the upper end faces of a pair of the sliders respectively, one end of a pair of the push claws is fixedly installed on one side of a pair of the mounting plates respectively, and the opposite ends of the rigid connecting piece are fixedly installed between a pair of the mounting plates.

4. A spin-riveting device for assembling a saw chain according to claim 3, characterized in that The rigid connecting piece comprises a threaded rod, and the opposite ends of the threaded rod are fixedly installed on a pair of the mounting plates in threads.

5. A spin-riveting device for assembling a saw chain according to claim 3, characterized in that A slide sleeve is fixedly installed on the base in vertical arrangement, the bottom end of the second servo motor is fixedly installed with a vertically downward extending guide rod, the guide rod is vertically and slidingly installed in the inner cavity of the slide sleeve, and the bottom end of the guide rod is connected with the ball screw in transmission through the connecting plate.

6. A spin-riveting device for saw chain assembly according to claim 5, characterized in that The connecting plate is provided with an avoiding groove for avoiding the guide rod.

7. A spin-riveting device for assembling a saw chain according to claim 1 or 2, characterized in that The push claw assembly is installed on the base, and the push claw assembly is arranged between the first servo motor and the second servo motor.

8. A saw chain assembly production apparatus comprising a frame, characterized in that The device further comprises a saw chain assembling spin riveting device as claimed in any one of claims 1 to 7, and the saw chain assembling spin riveting device is fixedly installed on the rack.

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