Clamping tool for processing side hole of coupler cylinder

Abstract

The invention discloses a clamping tool for coupler barrel side hole machining, and belongs to the technical field of coupler production, the clamping tool comprises a base, a mounting plate, a positioning seat, a rotary oil cylinder, a pressing plate and an adjusting seat, the lower end of the mounting plate is connected with the base, and the positioning seat, the rotary oil cylinder and the adjusting seat are sequentially mounted on one side of the mounting plate from top to bottom; a center protruding column is arranged in the center of the positioning seat, an outer side protruding column is arranged on the outer side of the center protruding column, the middle of the pressing plate is connected with a piston rod of the rotary oil cylinder, and an adjusting rod is connected to the adjusting seat through threads. According to the clamping tool, center positioning and circumferential positioning of a workpiece are achieved through the positioning base, axial positioning of the workpiece is achieved through the rotary oil cylinder, the pressing pressure of the workpiece can be adjusted through the positioning base, the clamping tool is accurate in positioning and stable in clamping, the workpiece cannot be damaged by pressing, the machining quality of a side hole of a coupler barrel is improved, and the machining efficiency is improved. The product percent of pass is improved and the production cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of coupling production, and in particular relates to a clamping tool used for machining side holes of a coupling cylinder. Background Art

[0002] The coupling is also called a coupling. It is used to firmly connect the driving shaft and the driven shaft in different mechanisms to rotate together and transmit motion and torque. It is a rotary transmission device. The coupling generally includes two cylinders and a transmission elastic body with a buffering effect arranged between the two cylinders, such as Figure 1 As shown, the cylinder 1 of the coupling has a central through hole 2 to form a cylindrical shape, one end of the cylinder 1 is provided with a plurality of cylinder bosses 3 evenly distributed along the circumferential direction, and the cylinder wall of the cylinder 1 is provided with a side hole 4; when used, the plurality of cylinder bosses 3 of the two cylinders 1 are arranged alternately, and a traditional elastomer is installed between adjacent cylinder bosses 3, and the two cylinders 1 are respectively connected to the driving shaft and the driven shaft, so that the rotation transmission function between the driving shaft and the driven shaft can be realized.

[0003] When processing the barrel 1, firstly process the central through hole 2 on the cylindrical metal rod to form a cylindrical shape, then process a plurality of barrel bosses 3 at one end thereof, and then process the side hole 4. Before processing the side hole 4, the workpiece (i.e., the barrel without the side hole 4 processed) needs to be reliably clamped. The traditional clamping method is to clamp the workpiece with a flat jaw vise, which has the following defects: during the clamping process of the flat jaw vise, the workpiece is easy to move, so the position of the workpiece is difficult to accurately locate, which ultimately leads to a large error in the side hole processing, reduces the product qualification rate, and increases the production cost; at the same time, when the flat jaw vise clamps the workpiece, its clamping force is difficult to control, which easily leads to the problem of unstable clamping or crushing the workpiece, which also reduces the product qualification rate and increases the production cost. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problems and provide a clamping tool for machining the side hole of the coupling cylinder, which has accurate positioning, stable clamping and will not crush the workpiece.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] The cam is secured to the bottom of the base and is secured on a platform with a plurality of intermediate positions, each of which is secured on a platform with a plurality of intermediate positions, each of which is secured on a platform with a plurality of intermediate positions.

[0007] Preferably, in order to facilitate the function of adapting to the processing of side holes of coupling cylinders of different sizes by replacing a few parts, the pressure plate includes an upper pressure plate and a lower pressure plate, the lower end of the upper pressure plate is connected to the upper end of the lower pressure plate by screws, the middle and upper part of the upper pressure plate partially or completely overlaps with the positioning seat in the transverse projection, the middle and upper part of the lower pressure plate is connected to the piston rod of the rotary cylinder, and the lower part of the lower pressure plate partially or completely overlaps with the adjusting rod in the transverse projection.

[0008] Preferably, in order to realize the rapid tool setting function during machining, a tool setting block for setting the machining tool is installed at a position on the upper end of the mounting plate next to the positioning seat.

[0009] Preferably, in order to facilitate processing and assembly, the mounting plate and the base are integrally formed, and the cylindrical positioning seat with a transverse axial direction is connected to the mounting plate by a plurality of connecting screws.

[0010] The beneficial effects of the present invention are:

[0011] The present invention designs a mounting plate, a positioning seat, a rotary oil cylinder, a pressure plate and an adjusting seat that cooperate with each other. When clamping, the center boss on the positioning seat is placed in the center through hole of the workpiece, the outer boss is placed between two adjacent cylinder bosses on the workpiece, and the end faces of multiple cylinder bosses of the workpiece are brought into contact with the corresponding end faces of the positioning seat, thereby realizing center positioning and circumferential positioning of the workpiece. The rotary oil cylinder is used to drive the pressure plate to rotate and move laterally, thereby realizing axial positioning of the workpiece and facilitating the installation and disassembly of the workpiece. The positioning seat can be used to adjust the pressure of the workpiece, thereby realizing a more reliable clamping function. The clamping tool has accurate positioning, stable clamping and will not damage the workpiece, which is beneficial to improving the processing quality of the side hole of the coupling cylinder, improving the product qualification rate and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a stereoscopic view of the barrel of a coupling;

[0013] Figure 2 It is a stereoscopic diagram of the clamping tool used for machining the side hole of the coupling cylinder according to the present invention;

[0014] Figure 3 It is a left view of the clamping tool used for machining the side hole of the coupling cylinder according to the present invention;

[0015] Figure 4 It is a stereoscopic view of the clamping tool used for machining the side hole of the coupling cylinder according to the present invention when in use. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings:

[0017] like Figure 2 and Figure 3As shown, the clamping tool for machining the side hole of the coupling cylinder of the present invention includes a base 15, a mounting plate 10, a positioning seat 7, a rotary cylinder 12, a pressure plate (refer to the upper pressure plate 6 and the lower pressure plate 11 in the following content) and an adjusting seat 14. The lower end of the vertical mounting plate 10 is connected to the base 15, and the first end of the two ends of the positioning seat 7 is connected to the upper part of one side of the mounting plate 10. The second end face of the two ends of the positioning seat 7 is a vertical plane and a horizontal protrusion and a cylindrical central boss 8 is provided at the center position. The second end face of the positioning seat 7 is located at the central boss 8. A laterally raised outer boss 9 is provided at the outer side, a rotary cylinder 12 is installed at the middle of one side of the mounting plate 10 and is located directly below the positioning seat 7, the middle of the vertical pressure plate is connected to the piston rod 13 of the rotary cylinder 12, an adjustment seat 14 is installed at the lower part of one side of the mounting plate 10 and is located directly below the rotary cylinder 12, a transverse adjustment rod 16 is threadedly connected to the adjustment seat 14 and the lower part of the pressure plate partially or completely overlaps with the adjustment rod 16 in the transverse projection, and the upper part of the pressure plate partially or completely overlaps with the positioning seat 7 in the transverse projection.

[0018] like Figure 2 and Figure 3 As shown, the present invention also discloses the following more optimized specific structures:

[0019] In order to facilitate the function of adapting to the processing of side holes of coupling cylinders of different sizes by replacing a few parts, the pressure plate includes an upper pressure plate 6 and a lower pressure plate 11, the lower end of the upper pressure plate 6 is connected to the upper end of the lower pressure plate 11 by screws, the middle and upper part of the upper pressure plate 6 and the positioning seat 7 partially or completely overlap in the horizontal projection, the middle and upper part of the lower pressure plate 11 is connected to the piston rod 13 of the rotary cylinder 12, and the lower part of the lower pressure plate 11 and the adjusting rod 16 partially or completely overlap in the horizontal projection.

[0020] In order to realize the function of rapid tool setting during machining, a tool setting block 5 for setting the machining tool is installed at the upper end of the mounting plate 10 next to the positioning seat 7 .

[0021] In order to facilitate processing and assembly, the mounting plate 10 and the base 15 are integrally formed, and the cylindrical positioning seat 7 with a transverse axial direction is connected to the mounting plate 10 by a plurality of connecting screws.

[0022] like Figure 1-Figure 4As shown, during processing, the central through hole 2 of the cylinder 1 is first processed on the cylindrical metal rod to form a cylindrical shape, and then a plurality of cylinder bosses 3 are processed at one end thereof to form a workpiece 17 with a side hole 4 to be processed; when clamping the workpiece 17, the piston rod 13 of the rotary cylinder 12 is first used to drive the pressing plate to rotate, so that the upper pressing plate 6 rotates downward to facilitate the installation of the workpiece 17, and then the central boss 8 on the positioning seat 7 is placed in the central through hole 2 of the workpiece 17, and the outer boss 9 is placed between two adjacent cylinder bosses 3 on the workpiece 17, and the end faces of the plurality of cylinder bosses 3 of the workpiece 17 are brought into contact with the corresponding end faces of the positioning seat 7, so that the workpiece 17 is fixed. 17 is centrally positioned and circumferentially positioned, and then the rotary oil cylinder 12 is used to drive the pressing plate to rotate and align the upper pressing plate 6 with the workpiece 17, and then the rotary oil cylinder 12 is used to drive the pressing plate to move horizontally until the upper pressing plate 6 presses the workpiece 17, so as to achieve the axial positioning of the workpiece 17, and then the side hole processing of the workpiece 17 can be carried out by other equipment and tools; after processing the side hole 4, other parts that need to be processed are processed, and then the rotary oil cylinder 12 is controlled to move in the opposite direction, that is, first move horizontally to release the upper pressing plate 6 from the workpiece 17, and then rotate the upper pressing plate 6 to rotate downward, and then the workpiece 17 can be removed very conveniently. Then the workpiece 17 is cut (if the length of the workpiece 17 is greater than the length of the cylinder 1, it needs to be cut, Figure 4 The displayed workpiece 17 is greater than Figure 1 The length of the barrel 1 is shown), and grinding and polishing are performed to obtain Figure 1 The barrel 1 is shown.

[0023] During the clamping process, if the pressure of the upper pressure plate pressing the workpiece 17 is not appropriate, the distance between the adjusting rod 16 and the lower pressure plate 11 can be changed by changing the relative position between the adjusting rod 16 and the adjusting seat 14, thereby changing the pressing force of the upper pressure plate 6 on the workpiece 17, thereby achieving the purpose of reliable clamping without damaging the workpiece 17.

[0024] If workpieces 17 of different sizes need to be clamped, the upper pressure plate 6 and the lower pressure plate 11 are disassembled, and the upper pressure plate 6 of corresponding size is replaced and connected to the lower pressure plate 11 by screws. Different upper pressure plates 6 are provided with grooves of different depths, so the clamping requirements of workpieces 17 of different sizes can be met.

[0025] The above embodiments are only preferred embodiments of the present invention and are not limitations of the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. A clamping tool for machining the side hole of a coupling cylinder, comprising a base, characterized in that: The cam is secured to the bottom of the base and is adapted to engage the cams of the base so that the cams can move relative to the base when the cams are engaged.

2. The clamping tool for machining the side hole of the coupling cylinder according to claim 1 is characterized in that: The pressure plate includes an upper pressure plate and a lower pressure plate, the lower end of the upper pressure plate is connected to the upper end of the lower pressure plate by screws, the middle and upper part of the upper pressure plate partially or completely overlaps with the positioning seat in the horizontal projection, the middle and upper part of the lower pressure plate is connected to the piston rod of the rotary cylinder, and the lower part of the lower pressure plate partially or completely overlaps with the adjusting rod in the horizontal projection.

3. The clamping tool for machining the side hole of the coupling cylinder according to claim 1 or 2, characterized in that: A tool setting block for setting a machining tool is installed at a position on the upper end of the mounting plate next to the positioning seat.

4. The clamping tool for machining the side hole of the coupling cylinder according to claim 1 or 2, characterized in that: The mounting plate and the base are integrally formed, and the cylindrical positioning seat with a transverse axial direction is connected to the mounting plate through a plurality of connecting screws.

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