Fixing device and automatic welding production line equipment
By designing a fixing device including telescopic drive device, pillar, lever arm and transverse pressing arm, the eccentric wear problem of double-station automatic welding tool during single work station operation in an automated welding production line is solved, and effective compression of the workpiece and normal operation of the production line are achieved.
Patent Information
- Application Number
- CN202421702418.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-18
AI Technical Summary
When the double-station automatic welding tool of the automated welding production line is operated in a single station, the driving device and mechanical linkage mechanism are eccentric wear due to uneven stress, which reduces the service life and affects normal operation.
A fixing device is designed, including a telescopic drive device, a pillar, a lever arm and a transverse pressing arm. The transverse pressing arm is kept floating through the hinged structure, and adaptively adjusts to achieve effective compression of the workpiece and avoid eccentric wear.
It effectively eliminates eccentric wear of the drive device and mechanical linkage mechanism, extends the service life of the automatic welding tooling, and ensures the normal operation of the automated welding production line.
Smart Images
Figure CN222919915U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automatic welding production lines, and more specifically, to a fixing device and an automatic welding production line equipment. Background Art
[0002] On an automatic welding production line, in order to improve the welding efficiency, an automatic welding tooling is used to position and fix the welding workpiece. To realize the automation of workpiece fixing, a driving device is used to control a mechanical linkage mechanism to press and fix the welding workpiece.
[0003] Meanwhile, according to production needs, for specific welding workpieces, double-station welding is often adopted to ensure the welding efficiency; for example, in the welding of a striking plate and a large plate-shaped workpiece, since the striking plate is a welding auxiliary tool and is used in large quantities or continuously to ensure the welding quality, double-station or single-station continuous welding is adopted according to needs; the common method is to adopt single-station continuous welding operation on the double-station, that is, only one of the double-stations is used to continuously carry out the welding operation. In this way, not only can the cost be controlled, but also after one station equipment is damaged, the other station equipment can be used to continue welding, so as to ensure the continuous operation of the automatic welding production line.
[0004] However, due to cost control of the fixing device of the automatic welding tooling, one driving device is used to control the mechanical linkage mechanism to press and fix two stations at the same time. When the automatic welding tooling at the double-station of the existing automatic welding production line performs the foregoing single-station operation, since one station is in an idle state while the other station needs to press the workpiece, the driving device and the corresponding mechanical linkage mechanism are in a state of uneven force. Over time, serious eccentric wear will occur to the driving device and the corresponding mechanical linkage mechanism, reducing the service life of the automatic welding tooling and affecting the normal operation of the automatic welding production line. Summary of the Utility Model
[0005] The technical problem to be solved by the utility model is how to eliminate the serious eccentric wear phenomenon of the driving device and the corresponding mechanical linkage mechanism during the single-station automatic clamping and positioning process of the fixing device of the automatic welding tooling for the double-station of the automatic welding production line.
[0006] To solve the above problems, the utility model provides a fixing device, which is used for a welding tooling. Two parallel welding stations are arranged on the workbench of the welding tooling. The fixing device includes:
[0007] A telescopic driving device, which is erected;
[0008] A support column, which is arranged beside the workbench;
[0009] A lever arm, which is arranged at the top of the pillar and extends along the front-rear direction. The lever arm is hinged to the pillar, and one end of the lever arm is hinged to the telescopic driving device; and
[0010] A transverse pressing arm, which is arranged above the two welding stations. The transverse pressing arm is hinged to the other end of the lever arm, so that the transverse pressing arm swings left and right. The transverse pressing arm is used to press the workpieces on the two welding stations.
[0011] Optionally, the fixing device further includes:
[0012] A connecting member, which is arranged above the transverse pressing arm and connected to the lever arm; and
[0013] Two elastic telescopic members, which are arranged on the left and right sides of the lever arm. The elastic telescopic members are arranged above the transverse pressing arm. The elastic telescopic members are connected to the connecting member, and the bottom ends of the elastic telescopic members are elastic telescopic ends and abut against the top surface of the transverse pressing arm.
[0014] Optionally, the elastic telescopic member is an elastic buffer.
[0015] Optionally, the fixing device further includes: two pressing arms, which are respectively arranged near the two ends of the transverse pressing arm. The pressing arms are used to press the workpieces on the welding stations.
[0016] Optionally, the pressing arm is a convex structure protruding downward, and the two pressing arms are respectively located at the two ends of the transverse pressing arm.
[0017] Optionally, there are multiple pressing arms, which are respectively arranged at the transverse pressing arms on both sides of the lever arm. The multiple pressing arms are arranged in sequence at intervals along the extending direction of the transverse pressing arm.
[0018] One end of the pressing arm is connected to the transverse pressing arm. The other end of the pressing arm protrudes forward and also protrudes downward. The other end of the pressing arm is used to press the plate-shaped workpieces on the welding stations.
[0019] Optionally, the telescopic driving device is a piston cylinder device, and the telescopic member of the telescopic driving device is a piston rod.
[0020] Optionally, the telescopic driving device is an electric push rod device.
[0021] Optionally, two mounting plates are arranged at the other end of the lever arm. The two mounting plates are erected downward. The transverse pressing arm is placed between the two mounting plates, and the two mounting plates are hinged to the transverse pressing arm.
[0022] In addition, the present utility model also provides an automatic welding production line equipment, and the automatic welding production line equipment includes the fixing device described above.
[0023] The technical effects of the present utility model at least include: during use, when a conveying device of the production line, such as a robotic arm or a trolley device, conveys a welding workpiece to a work station on the workbench, the telescopic driving device starts and extends, causing one end of the lever arm to rise and the other end to fall, and driving the transverse pressing arm to press on two work stations. Since there is a workpiece at one work station and no workpiece at the other work station, this causes the transverse pressing arm to swing. The height of the transverse pressing arm at the work station without a workpiece is lower than the height of the workpiece at the work station with a workpiece. The hinged connection between the transverse pressing arm and the lever arm makes the transverse pressing arm a lever, and the transverse pressing arm at the work station without a workpiece presses down the transverse pressing arm at the work station with a workpiece, thereby achieving effective clamping of the workpiece. During this process, by using the hinged connection between the transverse pressing arm and the lever arm, the transverse pressing arm is kept in a floating state. Whether there are workpieces at both work stations or only at one work station, the workpiece can be effectively clamped and fixed to prevent the workpiece from moving relative to the work station.
[0024] More importantly, by using the hinged connection between the transverse pressing arm and the lever arm, the transverse pressing arm is kept in a floating state, enabling the transverse pressing arm to be adaptively adjusted and fixed according to whether there are workpieces at the two work stations. The telescopic driving device, the support column, and the lever arm move back and forth and are only affected by the wear during the back-and-forth movement. Only the hinged connection between the transverse pressing arm and the lever arm is affected by the eccentricity when there is a workpiece at a single work station. In this way, most of the eccentric wear suffered by the entire fixing device is transferred to the hinged connection between the transverse pressing arm and the lever arm, thereby protecting the telescopic driving device, the support column, and the lever arm and preventing the telescopic driving device, the support column, and the lever arm from being affected by eccentric wear, especially avoiding the telescopic driving device from being affected by eccentric wear. Thus, serious eccentric wear phenomena of the driving device and the corresponding mechanical linkage mechanism are eliminated. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic structural diagram of the fixing device in the specific embodiment of the present utility model;
[0026] Figure 2 It is a schematic side view of the fixing device in the specific embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the embodiments of the present utility model. It should be understood that the specific embodiments described herein are merely used to explain the present utility model and are not used to limit the present utility model. The embodiments of the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0028] It can be understood that the terms "first", "second", etc. used in the present utility model can be used in this article to describe various technical terms and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. However, unless otherwise specified, these technical terms are not restricted by these terms. These terms are only used to distinguish one technical term from another. For example, without departing from the scope of the present utility model, the first receiving device and the second receiving device are different receiving devices, the first surface and the second surface are different surfaces, and the first plane, the second plane, the third plane, and the fourth plane are different planes. In the description of the embodiments of the present utility model, the meanings of "a plurality" and "several" are at least two, such as two, three, etc., unless otherwise specifically defined.
[0029] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, terms such as "installation", "connection", "setting", "fixing", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.
[0030] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. The first feature being "under", "below", and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than the horizontal height of the second feature.
[0031] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, or similar expressions such as "fixed on" or "disposed in", it can be directly on another component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to another component or there may be an intermediate component at the same time.
[0032] Unless otherwise defined, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.
[0033] Moreover, in the drawings, the Z-axis represents the vertical direction, that is, the up and down direction, and the positive direction of the Z-axis (that is, the arrow direction of the Z-axis) represents up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents down; the X-axis in the drawings represents the longitudinal direction, that is, the front and back direction, and the positive direction of the X-axis (that is, the arrow direction of the X-axis) represents back, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents front; the Y-axis in the drawings represents the transverse direction, that is, the left and right direction. At the same time, it should be noted that the meanings represented by the aforementioned Z-axis, Y-axis, and X-axis are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model.
[0034] See Figure 1 and Figure 2 , this embodiment provides a fixing device. The fixing device is used for a welding tooling. There are two parallel welding stations 7 arranged on the workbench 1 of the welding tooling. The fixing device includes:
[0035] A telescopic driving device 2, which is erected.
[0036] A pillar 3, which is arranged beside the workbench 1.
[0037] A lever arm 4, which is arranged at the top of the pillar 3 and extends along the front and back direction. The lever arm 4 is hinged to the pillar 3, and one end of the lever arm 4 is hinged to the telescopic driving device 2; and
[0038] A transverse pressing arm 5, which is arranged above the two welding stations 7. The transverse pressing arm 5 is hinged to the other end of the lever arm 4 to make the transverse pressing arm 5 swing left and right. The transverse pressing arm 5 is used to press the workpieces 6 on the two welding stations 7.
[0039] During use, when a conveying device on the production line, such as a robotic arm or a trolley device, transports the welding workpiece 6 to a station 7 on the workbench 1, the telescopic driving device 2 is activated and extended, causing one end of the lever arm 4 to rise while the other end descends, driving the transverse pressing arm 5 to press on the two stations 7. Since there is a workpiece 6 at one station 7 and no workpiece 6 at the other station 7, this causes the transverse pressing arm 5 to swing. The height of the transverse pressing arm 5 at the station 7 without the workpiece 6 is lower than the height of the workpiece 6 at the station 7 with the workpiece 6. The hinged connection between the transverse pressing arm 5 and the lever arm 4 makes the transverse pressing arm 5 a lever, and the transverse pressing arm 5 at the station 7 without the workpiece 6 presses down the transverse pressing arm 5 at the station 7 with the workpiece 6, thereby achieving effective clamping of the workpiece 6. During this process, by using the hinged connection between the transverse pressing arm 5 and the lever arm 4, the transverse pressing arm 5 is kept in a floating state. Whether there are workpieces 6 at both stations 7 or only at one station 7, the workpiece 6 can be effectively clamped and fixed to prevent the workpiece 6 from moving relative to the station 7.
[0040] More importantly, by using the hinged connection between the transverse pressing arm 5 and the lever arm 4, the transverse pressing arm 5 is kept in a floating state, enabling the transverse pressing arm 5 to adaptively adjust and fix according to whether there are workpieces 6 at the two stations 7. The telescopic driving device 2, the support column 3, and the lever arm 4 move back and forth, and are only affected by wear during back-and-forth movement. Only the hinged connection between the transverse pressing arm 5 and the lever arm 4 is affected by the eccentricity when there is a workpiece 6 at a single station 7. In this way, most of the eccentric wear on the entire fixing device is transferred to the hinged connection between the transverse pressing arm 5 and the lever arm 4, thereby protecting the telescopic driving device 2, the support column 3, and the lever arm 4, and preventing the telescopic driving device 2, the support column 3, and the lever arm 4 from being affected by eccentric wear, especially avoiding the telescopic driving device 2 from being affected by eccentric wear. Thus, serious eccentric wear phenomena in the driving device and the corresponding mechanical linkage mechanism are eliminated.
[0041] See Figure 1 and Figure 2 , further, the fixing device further includes:
[0042] A connecting member 51, arranged above the transverse pressing arm 5 and connected to the lever arm 4; and
[0043] Two elastic telescopic members 52, arranged on the left and right sides of the lever arm 4. The elastic telescopic members 52 are arranged above the transverse pressing arm 5. The elastic telescopic members 52 are connected to the connecting member 51, and the bottom ends of the elastic telescopic members 52 are elastic telescopic ends and abut against the top surface of the transverse pressing arm 5.
[0044] See Figure 1 and Figure 2 , further, the elastic telescopic member 52 is an elastic buffer.
[0045] After the horizontal pressing arm 5 is lifted, the two elastic telescopic members 52 are used to elastically push and top the horizontal pressing arm 5, so that the horizontal pressing arm 5 maintains a horizontal state, preventing the horizontal pressing arm 5 from always tilting to one side and causing repeated impact wear on one of the workbenches 1.
[0046] See Figure 1 and Figure 2 Furthermore, the fixing device further includes: two pressing arms 53, the two pressing arms 53 are respectively arranged near the two ends of the horizontal pressing arm 5, and the pressing arms 53 are used to press the workpiece 6 on the welding station 7.
[0047] See Figure 1 and Figure 2 Furthermore, the pressing arm 53 is a convex structure protruding downward, and the two pressing arms 53 are respectively located at the two ends of the horizontal pressing arm 5.
[0048] By using the pressing arm 53, the sensitivity of the floating of the horizontal pressing arm 5 is improved, so that when one pressing arm 53 first touches the vacant station 7 on the workbench 1, the pressing arm 53 on the other side of the horizontal pressing arm 5 can immediately press down the workpiece 6 under the action of the lever principle, realizing the quick and effective pressing of the unilateral workpiece 6.
[0049] See Figure 1 and Figure 2 Furthermore, there are multiple pressing arms 53 which are respectively arranged at the horizontal pressing arms 5 on both sides of the lever arm 4, and the multiple pressing arms 53 are arranged at intervals along the extension direction of the horizontal pressing arm 5 in sequence.
[0050] One end of the pressing arm 53 is connected to the horizontal pressing arm 5, and the other end of the pressing arm 53 protrudes forward and also protrudes downward, and the other end of the pressing arm 53 is used to press the plate-shaped workpiece 6 on the welding station 7.
[0051] For a larger plate-shaped workpiece 6, multiple pressing arms 53 are used to effectively press it, and the other end of the pressing arm 53 protrudes forward and also protrudes downward, so that the pressing arm 53 can press the workpiece 6 at the center of the workbench 1 earlier, thereby effectively pressing the center of the plate-shaped workpiece 6 with a larger area and preventing the plate-shaped workpiece 6 with a larger area from moving during the welding process.
[0052] See Figure 1 and Figure 2 Furthermore, the telescopic driving device 2 is a piston cylinder device, and the telescopic member of the telescopic driving device 2 is a piston rod.
[0053] Preferably, the piston cylinder device can be a hydraulic cylinder or a pneumatic cylinder, which is set according to the specific needs of the welded workpiece 6.
[0054] See Figure 1 and Figure 2 Furthermore, the telescopic driving device 2 is an electric push rod device.
[0055] By utilizing the characteristic that the telescopic amount of the electric push rod can be accurately adjusted, the pressing force on the workpiece 6 can be accurately adjusted.
[0056] See Figure 1 and Figure 2 Furthermore, two mounting plates 41 are provided at the other end of the lever arm 4. The two mounting plates 41 are vertically arranged downward, the transverse pressing arm 5 is placed between the two mounting plates 41, and the two mounting plates 41 are hinged to the transverse pressing arm 5.
[0057] With such a setting, the ability of the hinge joint between the transverse pressing arm 5 and the lever arm 4 to resist eccentric forces is improved.
[0058] In addition, this embodiment also provides an automatic welding production line device, and the automatic welding production line device includes the fixing device described above.
[0059] Since the technical effects achieved by the automatic welding production line device are the same as those of the fixing device, the automatic welding production line device will not be further explained.
[0060] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present invention.
Claims
1. A fixing device, the fixing device is used for a welding tool, and two parallel welding stations are arranged on the workbench of the welding tool, characterized in that: The fixing device comprises: A telescopic drive device, arranged vertically; A support column, arranged beside the workbench; A lever arm is provided on the top of the pillar and extends in the front-rear direction, the lever arm is hinged to the pillar, and one end of the lever arm is hinged to the telescopic drive device; and A transverse pressure arm is arranged above the two welding stations and is hinged to the other end of the lever arm so that the transverse pressure arm can swing left and right. The transverse pressure arm is used to press the workpieces on the two welding stations.
2. The fixing device according to claim 1, characterized in that: The fixing device also includes: a connecting member, disposed above the transverse pressure arm and connected to the lever arm; and Two elastic telescopic parts are arranged on the left and right sides of the lever arm. The elastic telescopic parts are arranged above the transverse pressure arm. The elastic telescopic parts are connected to the connecting part. The bottom end of the elastic telescopic parts is the elastic telescopic end and is pressed against the top surface of the transverse pressure arm.
3. The fixing device according to claim 2, characterized in that: The elastic expansion member is an elastic buffer.
4. The fixing device according to claim 1, characterized in that: The fixing device further comprises: two pressing arms, which are respectively arranged close to two ends of the transverse pressing arm, and are used to press the workpiece on the welding station.
5. The fixing device according to claim 4, characterized in that: The pressing arm is a protruding structure protruding downward, and the two pressing arms are respectively located at two ends of the transverse pressing arm.
6. The fixing device according to claim 4, characterized in that: The plurality of pressing arms are respectively arranged at the transverse pressing arms on both sides of the lever arm, and the plurality of pressing arms are arranged in sequence along the extending direction of the transverse pressing arms at intervals. One end of the pressing arm is connected to the transverse pressing arm, and the other end of the pressing arm extends forward and protrudes downward at the same time. The other end of the pressing arm is used to press the plate-shaped workpiece on the welding station.
7. The fixing device according to any one of claims 1 to 6, characterized in that: The telescopic drive device is a piston cylinder device, and the telescopic member of the telescopic drive device is a piston rod.
8. The fixing device according to any one of claims 1 to 6, characterized in that: The telescopic driving device is an electric push rod device.
9. The fixing device according to any one of claims 1 to 6, characterized in that: The other end of the lever arm is provided with two mounting plates, the two mounting plates are vertically arranged downward, the transverse pressure arm is placed between the two mounting plates, and the two mounting plates are hinged to the transverse pressure arm.
10. An automatic welding production line equipment, characterized in that: The automatic welding production line equipment comprises the fixing device according to any one of claims 1 to 9.