An assembly tool for a generator end cover machining center

Abstract

The present invention relates to the technical field of fixtures for machine tools, and specifically discloses an assembly fixture for a generator end cover machining center, comprising a mounting base plate, an axial clamping assembly, a radial clamping assembly, and a second support column; the axial clamping assembly is mounted on two pairs of first support columns; the radial clamping assembly comprises a clamping member and a support member that are arranged close to and engaged with each other up and down; wherein the axial clamping assembly is used to clamp the bearing mounting hole in the middle of the generator end cover, which is a primary clamping, and the radial clamping assembly is used to cooperate with the axial clamping assembly to clamp the outer edge of the generator end cover, which is a secondary clamping. The present invention increases the clamping operation on the outer edge of the generator end cover through two clamping operations, improves the tightening and fixing ability of the end cover, and can also improve the versatility and applicability of the device by adaptively deforming the two movable plates.

Description

Technical Field

[0001] The invention belongs to the technical field of fixtures for machine tools, and in particular relates to an assembly tool for a generator end cover machining center. Background Art

[0002] In the existing technology, parts are processed using processing equipment such as machine tools. In order to improve work efficiency, when the machining center processes the generator end cover, assembly tooling is used to clamp and fix the generator end cover.

[0003] Currently, a chuck is generally used to clamp the bearing mounting hole in the middle of the generator end cover to achieve the purpose of clamping the generator end cover. However, for considerations such as heat dissipation, the shell wall of the generator end cover is generally set to be thin. If the middle part is simply fixed, the end cover is prone to shaking and other problems during the subsequent processing, which in turn affects the processing accuracy and causes a large number of defective products. Summary of the Invention

[0004] The purpose of the present invention is to provide an assembly tool for a generator end cover machining center to solve the problem that the generator end cover in the prior art adopts a simple middle clamping method, which makes the end cover prone to vibration during subsequent machining and affects the machining accuracy.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An assembly tool for a generator end cover machining center, comprising:

[0007] An installation base plate, wherein two pairs of first support columns are evenly installed on the top surface of the installation base plate;

[0008] an axial clamping assembly, wherein the axial clamping assembly is mounted on the two pairs of first support columns;

[0009] A radial clamping assembly is installed above the axial clamping assembly, and the radial clamping assembly includes a clamping member and a support member that are closely adjacent to and engaged with each other.

[0010] A second support column, provided as a pair, for fixing the radial clamping assembly on the axial clamping assembly;

[0011] Among them, the axial clamping assembly is used to clamp the bearing mounting hole in the middle of the generator end cover, which is the primary clamping, and the radial clamping assembly is used to cooperate with the axial clamping assembly to clamp the outer edge of the generator end cover, which is the secondary clamping.

[0012] Preferably: the axial clamping assembly includes a mounting cross seat, a linear drive member is installed in the narrow gap in the middle of the mounting cross seat, and a chuck is installed on the linear drive member; the chuck is specifically composed of three parts: a chuck body, a movable claw and a claw driving mechanism, and the movable claw moves together to the side away from the axis of the chuck body to achieve the purpose of clamping the bearing mounting hole in the middle of the generator end cover.

[0013] Preferably: the clamping member includes a fixed plate and a movable plate, two movable plates are provided, and are respectively located on both sides of the fixed plate close to the end of the axial clamping assembly; the two movable plates and the fixed plate together form a "V"-shaped front end, which is used to perform secondary clamping on the generator end cover after the axial clamping assembly has been clamped once.

[0014] Preferably: the movable plate is composed of a plurality of closely adjacent sub-movable pieces, the movable plate as a whole is a triangular structure, and the lengths of the sub-movable pieces in the same movable plate gradually decrease; the two ends of each sub-movable piece are successively arranged into an inclined surface and a plane, and the plane end of each sub-movable piece is fixedly connected with a connecting ring, and a plug rod is inserted into a group of connecting rings on the same side, and the end of the plug rod away from the axial clamping assembly is fixedly sleeved with a connecting block.

[0015] Preferably, the clamping member further comprises a telescopic member, which comprises a telescopic cylinder fixed on the top of the fixed plate and a beam fixedly mounted on the output end of the telescopic cylinder, and the two connecting blocks are respectively fixed on both ends of the beam.

[0016] Preferably: a rectangular opening is provided at one end of the support member close to the axial clamping assembly for the movement of the axial clamping assembly for feeding materials, and two right-angled trapezoidal grooves are symmetrically provided on the surface of the support member about the rectangular opening, and two groups of limiting slots matching the two groups of sub-movable plates are respectively provided in the two right-angled trapezoidal grooves.

[0017] Preferably, the sub-movable piece can translate in a direction perpendicular to the axis of the telescopic cylinder in a matching limiting slot for its sliding insertion.

[0018] Preferably: when the circular generator end cover is clamped for the second time, the two insertion rods are inserted into the two sets of connecting rings, the two movable plates do not deform, and the two movable plates cooperate with the axial clamping assembly of the feeding to achieve secondary clamping of the outer edge of the circular generator end cover.

[0019] Preferably: when the rectangular generator end cover is clamped for the second time, the two insertion rods are gradually pulled out from the two sets of connecting rings, the right-angled sides of the rectangular generator end cover push back the corresponding sub-movable plates on both sides, the two movable plates undergo adaptive deformation, and the two movable plates cooperate with the axial clamping assembly of the feed to achieve secondary clamping of the outer edge of the rectangular generator end cover.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The secondary clamping of the present invention is carried out on the basis of the primary clamping. Through the two clamping operations, the clamping operation on the outer edge of the generator end cover is increased, the tightening and fixing ability of the end cover is improved, and the occurrence of shaking and the like during the end cover processing is reduced, thereby ensuring higher processing accuracy and improving the product yield.

[0022] 2. The "V"-shaped front end of the clamping member in the present invention is particularly suitable for clamping the outer edge of the circular end cover, thereby quickly achieving the secondary clamping purpose of the more common circular end cover and ensuring the processing accuracy of the subsequent end cover.

[0023] 3. In the present invention, by adaptively deforming the two movable plates, the purpose of secondary clamping of the outer edge of the relatively special rectangular generator end cover can be achieved, which improves the versatility and applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the clamping member of the present invention;

[0026] Figure 3 A side view of the connection between the clamping member and the supporting member of the present invention;

[0027] Figure 4 This is a structural breakdown diagram of the clamping member and the supporting member of the present invention;

[0028] Figure 5 This is a schematic diagram of the operation of performing secondary clamping on a circular generator end cover according to the present invention;

[0029] Figure 6 This is a schematic diagram of the operation of secondary clamping of a rectangular generator end cover according to the present invention.

[0030] In the picture:

[0031] 1. Mounting base; 2. Axial clamping assembly; 21. Mounting cross seat; 22. Chuck; 23. Linear drive member; 3. Radial clamping assembly; 31. Clamping member; 311. Fixed plate; 312. Movable plate; 3121. Sub-movable plate; 3122. Connecting ring; 3123. Insert rod; 3124. Connecting block; 313. Telescopic member; 3131. Telescopic cylinder; 3132. Crossbeam; 32. Support and limit member; 321. Right-angle trapezoidal groove; 322. Limit slot; 323. Rectangular opening; 4. First support column; 5. Second support column. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1-Figure 3 As shown, the present invention provides an assembly tool for a generator end cover machining center, comprising a mounting base plate 1, an axial clamping assembly 2, a radial clamping assembly 3 and a second support column 5. The mounting base plate 1 can be fixed to the machine tool by bolts or the like; two pairs of first support columns 4 are evenly installed on the top surface of the mounting base plate 1; the axial clamping assembly 2 is installed on the two pairs of first support columns 4; the radial clamping assembly 3 is installed above the axial clamping assembly 2, and the radial clamping assembly 3 includes a clamping member 31 and a support member 32 that are closely arranged and engaged with each other; the second support column 5 is provided as a pair, for fixing the radial clamping assembly 3 on the axial clamping assembly 2; wherein the axial clamping assembly 2 is used to clamp the axis in the middle of the generator end cover The radial clamping assembly 3 is used to clamp the outer edge of the generator end cover in cooperation with the axial clamping assembly 2, which is the secondary clamping. The secondary clamping is based on the primary clamping, and the axial clamping assembly 2 drives the generator end cover close to the radial clamping assembly 3, and finally clamps it. Through the two clamping operations, compared with the single clamping of the prior art, the clamping operation on the outer edge of the generator end cover is added, so that when processing the generator end cover with a thinner shell wall, the tightening and fixing ability of the end cover can be improved, and the occurrence of shaking and the like during the end cover processing can be reduced, thereby ensuring higher processing accuracy and improving the product yield.

[0034] Specifically, the axial clamping assembly 2 includes a mounting cross seat 21, a linear drive member 23 is installed in the narrow gap in the middle of the mounting cross seat 21, and a chuck 22 is installed on the linear drive member 23; the chuck 22 is specifically composed of three parts: a chuck body, a movable jaw and a jaw driving mechanism. The chuck body, the movable jaw and the jaw driving mechanism are mature technologies in the existing technology, so they are not described in detail here. The movable jaws move together to the side away from the axis of the chuck body to achieve the purpose of clamping the bearing mounting hole in the middle of the generator end cover; the linear drive member 23 can be realized by using a mature ball screw pair structure in the existing technology, which is mainly composed of a screw and a nut. It is the most accurate and most commonly used transmission device in the transmission machinery, so it is not described in detail here. The purpose is to bring the end cover after the last clamping of the axial clamping assembly 2 close to the radial clamping assembly 3, and finally achieve the purpose of tightening, thereby completing the secondary clamping.

[0035] Furthermore, the clamping member 31 includes a fixed plate 311 and a movable plate 312, and two movable plates 312 are provided, and are respectively located on both sides of the fixed plate 311 close to the end of the axial clamping assembly 2; the two movable plates 312 and the fixed plate 311 together form a "V"-shaped front end, which is used to perform secondary clamping on the generator end cover after the axial clamping assembly 2 is clamped once; the "V"-shaped front end is particularly suitable for clamping the outer edge of the circular end cover, so that the secondary clamping purpose of the more common circular end cover can be quickly achieved, and the processing accuracy of the subsequent end cover can be guaranteed.

[0036] In a further embodiment, in actual processing operations, circular end caps are more common, but there are also many rectangular end caps. In order to improve the versatility and applicability of the device, the specific structure of the radial clamping assembly 3 is further improved as follows: Figure 2-Figure 4 As shown, the movable plate 312 is composed of a plurality of closely adjacent sub-movable pieces 3121. The movable plate 312 is normally set as a right-angled triangle structure as a whole. The lengths of the sub-movable pieces 3121 in the same movable plate 312 gradually decrease; the two ends of each sub-movable piece 3121 are sequentially set as inclined surfaces and planes, so that when the sub-movable pieces 3121 of the same group are in the initial state, multiple inclined surfaces are pieced together to form a hypotenuse of a deep "V"-shaped groove, thereby achieving a better clamping purpose for the circular end cover, and the flat end of each sub-movable piece 3121 is fixedly connected to a connecting ring 3122, and a rod 3123 is inserted into a group of connecting rings 3122 on the same side, and the rod 3123 is away from one end of the axial clamping assembly 2. The two fixing sleeves are all provided with a connecting block 3124; a rectangular opening 323 is provided at one end of the support member 32 close to the axial clamping assembly 2 for the movement of the axial clamping assembly 2 for feeding, and two right-angled trapezoidal grooves 321 are symmetrically provided on the surface of the support member 32 about the rectangular opening 323. Two groups of limiting slots 322 matching the two groups of sub-movable pieces 3121 are respectively provided in the two right-angled trapezoidal grooves 321. The right-angled trapezoidal grooves 321 are specifically a combination of a rectangle and a right-angled triangle. The two right-angled trapezoidal grooves 321 and the two groups of limiting slots 322 are used to provide support and limitation for the two groups of sub-movable pieces 3121 in the two movable plates 312 after deformation and restoration, thereby improving the structural strength and pressure resistance of each single sub-movable piece 3121;

[0037] The sub-movable piece 3121 can be moved in a direction perpendicular to the axis of the telescopic cylinder 3131 in the limiting slot 322 for sliding insertion.

[0038] In addition, the clamping member 31 also includes a telescopic member 313, which includes a telescopic cylinder 3131 fixed on the top of the fixed plate 311 and a beam 3132 fixedly installed on the output end of the telescopic cylinder 3131, and two connecting blocks 3124 are respectively fixed at both ends of the beam 3132. The telescopic output end of the telescopic cylinder 3131 can drive the beam 3132 to move in the direction of translation of the chuck 22, thereby driving the two insertion rods 3123 to be gradually pulled out or inserted back from the two sets of connecting rings 3122.

[0039] The above structural design corresponds to two working conditions. The specific operation steps are as follows:

[0040] Reference Figure 1 and Figure 5 When the cam 312 is in the closed position, the two guide rails 312 are in the closed position, and the guide rails 312 are in the closed position, so that the cam 312 is in the open position, and the guide rails 312 are in the closed position, so that the cam 312 is in the open position, and the guide rails 312 are in the closed position, so that the cam 312 is in the open position, and the guide rails 312 are in the closed position, so that the cam 312 is in the open position, and the guide rails 312 are in the closed position, so that the cam 312 is in the open position, and the guide rails 312 are in the closed position, so that the guide rails

[0041] Reference Figure 1 and Figure 6 As shown, the chuck 22 can also be used to clamp the bearing mounting hole in the middle of the rectangular end cover once. Then, when the rectangular generator end cover is clamped for the second time, the axial clamping assembly 2 drives the upper rectangular end cover to translate to the right, and the rectangular end cover presses against the overall oblique edges of the two movable plates 312. Due to the special structure of the right-angled edges of the rectangular end cover, after they are pressed against the overall oblique edges of the two movable plates 312, the clamping effect is very general. After the processing force is applied, vibration will occur. Therefore, the two movable plates 312 need to be adaptively deformed at this time.

[0042] Specifically, the telescopic cylinder 3131 is started to drive the crossbeam 3132 to move horizontally to the side away from the chuck 22, so that the two insertion rods 3123 can be gradually drawn out from the two sets of connecting rings 3122, cooperating with the right-angled sides of the rectangular generator end cover to push back the corresponding sub-movable pieces 3121 on both sides. This is due to the end structural design characteristics of the sub-movable pieces 3121, that is, the lengths of the sub-movable pieces 3121 in the same movable plate 312 are gradually reduced, and the two ends of each sub-movable piece 3121 are sequentially set to be inclined surfaces and flat surfaces; then the two movable The plate 312 will deform adaptively; the sub-movable piece 3121 will be pushed back under the restriction of the corresponding limiting slot 322, that is, it will move perpendicularly to the axis of the telescopic cylinder 3131. In this way, the pushing and retreating action of the sub-movable piece 3121 is more orderly, and subsequent reset is more convenient. In addition, the two right-angled trapezoidal grooves 321 symmetrically arranged in the supporting limit member 32 serve to store and support the sub-movable piece 3121 after the push and retreat, preventing the sub-movable piece 3121 from falling, achieving the purpose of order and regularity, and promoting the use of the device with high stability, high efficiency and reliability.

[0043] Finally, when the sub-movable pieces 3121 on both sides do not push back any further, the right-angled sides of the rectangular end cover will press against the sliding side surfaces of the last sub-movable piece 3121 that "can no longer be pushed back", thereby pressing the pressed end surface of the rectangular end cover and the sliding side surfaces of the last pair of sub-movable pieces 3121 that "can no longer be pushed back" tightly together. When the two planes are pressed together, there will be no jumping vibration or shaking. At this point, the two movable plates 312 cooperate with the axial clamping assembly 2 of the feed to achieve the purpose of secondary clamping of the outer edge of the rectangular generator end cover, thereby reducing the occurrence of shaking during the processing of the rectangular end cover, thereby ensuring the processing accuracy of subsequent end covers and improving the product yield.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An assembly tool for a generator end cover machining center, characterized in that: include: An installation base plate, wherein two pairs of first support columns are evenly installed on the top surface of the installation base plate; an axial clamping assembly, wherein the axial clamping assembly is mounted on the two pairs of first support columns; The radial clamping assembly is installed above the axial clamping assembly, and the radial clamping assembly includes a clamping member and a support member that are closely adjacent and engaged with each other in the upper and lower parts; the clamping member includes a fixed plate and a movable plate, and the movable plates are provided with two, and are respectively located on both sides of the fixed plate close to the end of the axial clamping assembly; the two movable plates and the fixed plate together form a "V"-shaped front end, which is used to perform a second clamping on the generator end cover after the axial clamping assembly is clamped once; the movable plate is composed of a plurality of closely adjacent sub-movable plates, and the movable plate is a triangular structure as a whole, and the length of the sub-movable plates in the same movable plate is gradually decreasing; the two ends of each sub-movable plate are sequentially arranged into an inclined surface and a flat surface, and the flat end of each sub-movable plate is fixedly connected to a connecting ring, and a group of The adjusting screw is fixed on the upper end of the adjusting base, and the adjusting screw is fixed on the lower end of the adjusting base, and the adjusting screw is fixed on the adjusting base. A second support column, provided as a pair, for fixing the radial clamping assembly on the axial clamping assembly; The axial clamping assembly is used to clamp the bearing mounting hole in the middle of the generator end cover, which is the primary clamping. The radial clamping assembly is used to cooperate with the axial clamping assembly to clamp the outer edge of the generator end cover, which is the secondary clamping. When the circular generator end cover is clamped for the second time, the two insertion rods are inserted into the two sets of connecting rings, the two movable plates do not deform, and the two movable plates cooperate with the axial clamping assembly of the feed to achieve the secondary clamping of the outer edge of the circular generator end cover; when the rectangular generator end cover is clamped for the second time, the two insertion rods are gradually pulled out from the two sets of connecting rings, and the right-angled sides of the rectangular generator end cover push back the corresponding sub-movable plates on both sides, and the two movable plates undergo adaptive deformation, and the two movable plates cooperate with the axial clamping assembly of the feed to achieve the secondary clamping of the outer edge of the rectangular generator end cover.

2. The assembly tool for a generator end cover machining center according to claim 1, characterized in that: The axial clamping assembly includes a mounting cross seat, a linear drive member is installed in the narrow gap in the middle of the mounting cross seat, and a chuck is installed on the linear drive member; the chuck is specifically composed of three parts: a chuck body, a movable claw and a claw driving mechanism, and the movable claws move together to the side away from the axis of the chuck body to achieve the purpose of clamping the bearing mounting hole in the middle of the generator end cover.

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