Spare and accessory part machining jig for robot manufacturing

Abstract

The utility model relates to the technical field of machining jigs, in particular to a part machining jig for robot manufacturing, which comprises a machine body, a guide rail is arranged at the top of the machine body, a base is arranged at the top of the guide rail, a power mechanism is arranged on the machine body, and the power mechanism comprises a driving two-way threaded rod, and the driving bidirectional threaded rod is rotationally connected to the machine body, the outer wall of the driving bidirectional threaded rod is in threaded connection with a connector, and one end of a connecting rod is hinged to the inner wall of the connector. Through the arrangement of the power mechanism, when the clamping force reaches a certain degree, the retraction mechanism of the trapezoidal block interrupts the transmission chain, the clamping force is prevented from being further increased, the design can effectively protect a workpiece, the problem that the clamping force is difficult to control is successfully solved, the clamping force is dynamically adjusted, the workpiece is protected from being damaged, and the clamping force can be effectively controlled. And the operation process is simplified, and meanwhile, the safety and durability of the jig are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to processing fixture technical field, concretely is a spare and accessory processing fixture for robot manufacturing. BACKGROUND

[0002] The spare and accessory processing fixture in robot manufacturing is a special tool for ensuring the accurate positioning, clamping and supporting of each part and component of the robot during the processing. They mainly help the workpiece to maintain stability during processing, avoid position deviation and deformation, so as to improve the processing precision and production efficiency.

[0003] The existing processing fixture clamping device lacks accurate clamping force adjusting mechanism during use, which leads to the difficulty in stable control of the size of clamping force, thereby causing a series of problems. Improper control of clamping force mainly manifests as excessive or insufficient clamping force, which will have a significant impact on the processing quality and precision of the workpiece. First of all, when the clamping force is too large, especially when dealing with thin-walled, soft or easily damaged parts, the excessive force will cause the workpiece to deform. Such deformation not only changes the shape of the workpiece, but also affects its internal structure. For example, thin-walled workpieces will locally sag or bend when subjected to excessive clamping force, thereby directly affecting the precision of subsequent processing. For parts made of soft materials, such as certain polymers or lightweight alloys, excessive force can even cause surface indentation or tearing. In addition, the microstructure of precision parts will be damaged when subjected to excessive clamping force, affecting functional features, such as the surface of optical elements will lose transparency or cause reflectivity to decrease. On the other hand, when the clamping force is insufficient, the workpiece will not be firmly fixed during processing, resulting in position deviation or rotation. Insufficient clamping force will cause the workpiece to move slightly during processing such as cutting, drilling or polishing due to the cutting force or vibration of the tool. Such displacement will directly affect the accuracy of the processing position, causing the size of the processed parts to be out of tolerance or the shape to deviate from the design requirements. In addition, the rotation of the workpiece will damage the tool, such as the tool will collapse due to accidental collision, causing processing interruption and increasing production cost. If the workpiece is completely loose during clamping, it may even cause safety accidents due to disengagement from the fixture.

[0004] In view of this, we propose a spare and accessory processing fixture for robot manufacturing. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a spare and accessory processing fixture for robot manufacturing, which solves the problem of the lack of accurate clamping force adjusting mechanism in the existing processing fixture clamping device, leading to unstable clamping force, which will affect the deformation or processing precision of the workpiece, and even cause processing failure.

[0006] In order to achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of spare part machining jig for robot manufacturing, including body, the top of the body is provided with guide rail, the top of the guide rail is provided with base, power mechanism is arranged on the body, the power mechanism includes: driving bidirectional threaded rod, the driving bidirectional threaded rod is rotatably connected in body, the outer wall of the driving bidirectional threaded rod is threadedly connected with connecting head, one end of connecting rod is hinged on the inner wall of the connecting head, the other end of the connecting rod is hinged with transmission plate, the outer wall of the driving bidirectional threaded rod is rotatably connected with disc drive block, the inner wall of the disc drive block is fixedly connected with inner connecting block, one end of spring is fixedly connected on the inner wall of the driving bidirectional threaded rod, the other end of the spring is fixedly connected with trapezoidal block;Clamping mechanism is arranged on the body, and the clamping mechanism includes guide rod, hollow arc block, hollow pipe, hollow sleeve, flexible pressing piece.

[0008] Preferably, the inner connecting block is provided with three, and the three inner connecting blocks are arranged in a circumferential array.

[0009] Preferably, the outer wall of the trapezoidal block is slidably connected with the inner wall of the driving bidirectional threaded rod, and the side of the trapezoidal block away from the spring is inclined.

[0010] Preferably, the disc drive block protrudes from the front of the body, for facilitating hand rotation of the disc drive block.

[0011] Preferably, the guide rod is fixedly connected to the outer wall of the base, the outer wall of the transmission plate is fixedly connected with the hollow arc block, the outer wall of the hollow arc block is fixedly connected with the hollow pipe, the outer wall of the hollow pipe is slidably connected with the hollow sleeve, and the outer wall of the hollow sleeve is fixedly connected with the flexible pressing piece.

[0012] Preferably, the inner wall of the hollow arc block is hollow, and the inner wall of the hollow arc block and the inner wall of the hollow pipe are in communication.

[0013] Preferably, the outer wall of the guide rod is slidably connected with the inner wall of the transmission plate, and the flexible pressing piece is provided with three, and the three flexible pressing pieces are arranged in an arc shape.

[0014] By the above technical scheme, the utility model provides a kind of spare part machining jig for robot manufacturing. At least have the following beneficial effects:

[0015] (1), the utility model discloses a power mechanism is set up, when the clamping force reaches certain degree, the retraction mechanism of trapezoidal block interrupts the transmission chain, avoids the further increase of clamping force, this design can effectively protect workpiece, especially to thin wall, soft or precision parts, prevent deformation or damage, need not manual accurate control clamping force, and the device can automatically stop transmission according to the reaction force of workpiece, reduce the requirement to the skill of operator, improve the processing efficiency, this principle is based on force feedback and spring limit design, successfully solved the problem that clamping force is difficult to control, through the dynamic adjustment clamping force, both protect workpiece from damage, simplify the operation process, improve the security and durability of jig simultaneously.

[0016] (2), the utility model discloses a clamping mechanism is set up, and the hollow sleeve passes through hollow pipe and transfers the inside air to hollow arc block, and realizes the automatic balance of pressure through connecting to other hollow pipes, finally, each flexible pressing piece reaches consistent pressing force through air pressure balance mechanism, and air pressure balance mechanism can keep the pressing degree of flexible pressing piece consistent, and is suitable for different shape or size workpiece, avoids the processing error caused by uneven force distribution, improves the processing accuracy, and air pressure balance mechanism can automatically adjust clamping force according to the shape of workpiece, enhances the adaptability of jig to different shape, size workpiece, reduces the frequency of replacing clamping device, improves production efficiency, and flexible pressing piece can adapt to the surface shape of workpiece, avoids the damage of too large local clamping force to thin wall, easily damaged or flexible workpiece, thereby protects the integrity and functionality of workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the utility model and constitute a part of this application:

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the structure schematic diagram of base in the utility model;

[0020] Figure 3 It is the structure schematic diagram of power mechanism in the utility model;

[0021] Figure 4 It is the structure schematic diagram of inner connecting block in the utility model;

[0022] Figure 5 It is the structure schematic diagram of trapezoidal block in the utility model;

[0023] Figure 6 It is the structure schematic diagram of clamping mechanism in the utility model;

[0024] Figure 7 It is the cross section structure schematic diagram of hollow pipe in the utility model.

[0025] In the figure: 1, body; 2, guide rail; 3, power mechanism; 31, driving bidirectional threaded rod; 32, connecting head; 33, connecting rod; 34, transmission plate; 35, disc driving block; 36, inner connecting block; 37, spring; 38, trapezoidal block; 4, clamping mechanism; 41, guide rod; 42, hollow arc block; 43, hollow pipe; 44, hollow sleeve; 45, flexible pressing piece; 5, base. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-7 The utility model provides a kind of technical scheme of spare and accessory processing fixture for robot manufacturing, including body 1, the top of body 1 is provided with guide rail 2, the top of guide rail 2 is provided with base 5, power mechanism 3 is arranged on body 1, and power mechanism 3 includes: driving bidirectional threaded rod 31, driving bidirectional threaded rod 31 is rotatably connected in body 1, the outer wall of driving bidirectional threaded rod 31 is threadedly connected with connecting head 32, one end of connecting rod 33 is hinged on the inner wall of connecting head 32, the other end of connecting rod 33 is hinged with transmission plate 34, the outer wall of driving bidirectional threaded rod 31 is rotatably connected with disc driving block 35, the inner wall of disc driving block 35 is fixedly connected with inner connecting block 36, one end of spring 37 is fixedly connected on the inner wall of driving bidirectional threaded rod 31, and the other end of spring 37 is fixedly connected with trapezoidal block 38;Clamping mechanism 4 is arranged on body 1, and clamping mechanism 4 includes guide rod 41, hollow arc block 42, hollow pipe 43, hollow sleeve 44 and flexible pressing piece 45, three inner connecting blocks 36 are arranged in circumferential array, the outer wall of trapezoidal block 38 is slidably connected with the inner wall of driving bidirectional threaded rod 31, the side of trapezoidal block 38 away from spring 37 is inclined surface, disc driving block 35 protrudes from the front surface of body 1, to facilitate hand rotating disc driving block 35.

[0028] The outer wall of the transmission plate 34 is fixedly connected with a hollow arc-shaped block 42, the outer wall of the hollow arc-shaped block 42 is fixedly connected with a hollow pipe 43, the outer wall of the hollow pipe 43 is slidably connected with a hollow sleeve 44, the outer wall of the hollow sleeve 44 is fixedly connected with a flexible pressing piece 45, the inner wall of the hollow arc-shaped block 42 is hollow, the inner wall of the hollow arc-shaped block 42 and the inner wall of the hollow pipe 43 are in communication with each other, the outer wall of the guide rod 41 is slidably connected with the inner wall of the transmission plate 34, so that the transmission plate 34 stably reciprocates on the guide rod 41, the flexible pressing piece 45 is provided with three, the three flexible pressing pieces 45 are arranged in an arc shape, and the arc-shaped arrangement of the three flexible pressing pieces 45 can provide uniform pressing force distribution.

[0029] The utility model discloses a kind of spare parts machining jigs for robot manufacturing, when using, the spare parts for robot manufacturing is placed on base 5, then clockwise rotating disc drive block 35, the inner connecting block 36 in rotating disc drive block 35 is in contact with the slope of trapezoidal block 38, at this time, the elasticity of spring 37 makes trapezoidal block 38 not retract into drive bidirectional screw rod 31, at this time, the inner connecting block 36 drives trapezoidal block 38 to rotate, trapezoidal block 38 drives drive bidirectional screw rod 31 to rotate, drive bidirectional screw rod 31 drives two connecting heads 32 to move in the direction of mutual separation, two connecting heads 32 are driven to rotate when mutually separating, so that connecting rod 33 drives transmission plate 34 to move in the direction of mutual approach, so that transmission plate 34 drives hollow arc-shaped block 42, hollow pipe 43, hollow sleeve 44, flexible pressing piece 45 to press and clamp workpiece, when flexible pressing piece 45 is in contact with workpiece, the reaction force that flexible pressing piece 45 receives makes flexible pressing piece 45 drive hollow sleeve 44 to move in the direction of hollow arc-shaped block 42, at this time, air in hollow sleeve 44 enters hollow arc-shaped block 42 through hollow pipe 43, and then enters other hollow sleeve 44 through other hollow pipe 43, so that the pressure received in each hollow sleeve 44 is balanced by air pressure, so that the pressing degree of each flexible pressing piece 45 is consistent.

[0030] The hollow sleeve 44 transmits the internal air to the hollow arc block 42 through the hollow pipe 43, and realizes automatic pressure balance through connection to other hollow pipes 43. Finally, the individual flexible pressing pieces 45 reach consistent pressing force through the air pressure balance mechanism. The air pressure balance mechanism can keep the pressing force of the flexible pressing pieces 45 consistent, adapt to workpieces of different shapes or sizes, avoid processing errors caused by uneven force distribution, and improve processing precision. The air pressure balance mechanism can automatically adjust the clamping force according to the shape of the workpiece, enhance the adaptability of the jig to workpieces of different shapes and sizes, reduce the frequency of replacing the clamping device, and improve production efficiency. The flexible pressing pieces 45 can adapt to the shape of the workpiece surface, avoid damage to thin-walled, fragile or flexible workpieces caused by excessive local clamping force, and thus protect the integrity and functionality of the workpiece.

[0031] When the flexible pressing piece 45 is in contact with the workpiece, the reaction force transmitted at this time causes the trapezoidal block 38 to increase in force, the spring 37 is compressed at this time, the trapezoidal block 38 is retracted into the driving bidirectional threaded rod 31, at this time the inner connecting block 36 no longer drives the trapezoidal block 38 to rotate, avoiding the damage of the workpiece caused by the continuously increasing clamping force

[0032] When the clamping force reaches a certain degree, the retraction mechanism of the trapezoidal block 38 interrupts the transmission chain, avoiding further increase of the clamping force. This design can effectively protect the workpiece, especially for thin-walled, soft or precision parts, prevent deformation or damage, without manual accurate control of the clamping force, the device can automatically stop transmission according to the reaction force of the workpiece, reducing the skill requirement of the operator, improving the processing efficiency. This principle is based on force feedback and spring 37 limiting design, successfully solves the problem of difficult control of clamping force, through dynamic adjustment of clamping force, not only protects the workpiece from damage, but also simplifies the operation process, at the same time improves the safety and durability of the jig.

[0033] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0034] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A robot manufacturing spare part processing jig comprising a body (1), characterized in that: The top of the machine body (1) is provided with a guide rail (2), the top of the guide rail (2) is provided with a base (5), the machine body (1) is provided with a power mechanism (3), the power mechanism (3) comprises: The driving bidirectional threaded rod (31) is rotatably connected to the machine body (1), the outer wall of the driving bidirectional threaded rod (31) is threadedly connected with a connecting head (32), one end of a connecting rod (33) is hingedly connected to the inner wall of the connecting head (32), the other end of the connecting rod (33) is hingedly connected with a transmission plate (34), the outer wall of the driving bidirectional threaded rod (31) is rotatably connected with a disc driving block (35), the inner wall of the disc driving block (35) is fixedly connected with an inner connecting block (36), one end of a spring (37) is fixedly connected to the inner wall of the driving bidirectional threaded rod (31), the other end of the spring (37) is fixedly connected with a trapezoidal block (38); The machine body (1) is provided with a clamping mechanism (4), the clamping mechanism (4) comprises a guide rod (41), a hollow arc block (42), a hollow pipe (43), a hollow sleeve (44) and a flexible pressing piece (45).

2. The jig for processing a spare part for a robot according to claim 1, characterized in that: The inner connecting block (36) is provided with three, three inner connecting blocks (36) are arranged in a circumferential array.

3. The robotized manufacturing of spare parts processing fixture according to claim 1, characterized in that: The outer wall of the trapezoidal block (38) is slidably connected with the inner wall of the driving bidirectional threaded rod (31), and the side of the trapezoidal block (38) away from the spring (37) is a slope.

4. The robotized manufacturing of spare parts processing fixture according to claim 1, characterized in that: The disc driving block (35) protrudes from the front of the machine body (1), which is convenient for rotating the disc driving block (35) by hand.

5. The robotized manufacturing of spare parts processing fixture according to claim 1, characterized in that: The outer wall of the guide rod (41) is fixedly connected to the base (5), the outer wall of the transmission plate (34) is fixedly connected with the hollow arc block (42), the outer wall of the hollow arc block (42) is fixedly connected with the hollow pipe (43), the outer wall of the hollow pipe (43) is slidably connected with the hollow sleeve (44), and the outer wall of the hollow sleeve (44) is fixedly connected with the flexible pressing piece (45).

6. The robotized manufacturing of spare parts processing fixture according to claim 5, characterized in that: The inner wall of the hollow arc block (42) is hollow, and the inner wall of the hollow arc block (42) is in communication with the inner wall of the hollow pipe (43).

7. The robotized manufacturing of spare parts processing fixture according to claim 6, characterized in that: The outer wall of the guide rod (41) is slidably connected with the inner wall of the transmission plate (34), the flexible pressing piece (45) is provided with three, and the three flexible pressing pieces (45) are arranged in an arc shape.

Images