Clamp for quickly clamping machine shell

Abstract

The utility model discloses a clamp for rapidly clamping a machine shell. The clamp for rapidly clamping the machine shell comprises a clamp base and a clamping part, the positioning assembly comprises a machine shell positioning boss, the machine shell positioning boss is fixedly connected to the end face of one side of the clamp base, and the machine shell positioning boss is matched with a machine shell; the pressing mechanism comprises an air cylinder, the air cylinder is fixedly connected to the end face of one side of the clamp base, the end face of one side of the air cylinder is fixedly connected with a pressing assembly matched with a machine shell, a pressing hole is formed in the end face of one side of the clamp base, and the pressing assembly penetrates through the side wall of the pressing hole. Compared with the prior art, according to the clamp capable of rapidly clamping the machine shell, the machine shell is clamped on the positioning boss, the pressing mechanism penetrates through the interior of the machine shell and presses the machine shell from the top, and the clamp capable of rapidly clamping the machine shell is simple in structure, convenient to operate, capable of achieving rapid clamping and disassembling of a workpiece, stable in clamping and high in safety.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fixture, and specifically relates to a quick clamping fixture for machine shell. BACKGROUND

[0002] In the field of mechanical processing, the machining process of products with complex structure often needs to go through multiple processes. Traditional clamping methods are often complex in structure, inconvenient to operate, poor in clamping effect, easy to loosen, and low in machining precision, thereby affecting product quality.

[0003] Therefore, in view of the above technical problems, it is necessary to provide a quick clamping fixture for machine shell.

[0004] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general background of the present utility model and is not intended to be a recognition or a suggestion that this information forms a prior art that is already known to those of ordinary skill in the art. SUMMARY

[0005] The utility model aims at providing a quick clamping fixture for machine shell, which can solve the problems in the above BACKGROUND.

[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by a specific embodiment of the utility model is as follows:

[0007] A quick clamping fixture for machine shell comprises a fixture base, a positioning assembly, a pressing mechanism, wherein the positioning assembly comprises a machine shell positioning boss, the machine shell positioning boss is fixedly connected to one side end face of the fixture base, and the machine shell positioning boss is matched with the machine shell; the pressing mechanism comprises a pneumatic cylinder, one side end face of the pneumatic cylinder is fixedly connected to one side end face of the fixture base, one side end face of the pneumatic cylinder is fixedly connected with a pressing assembly matched with the machine shell, one side end face of the fixture base is provided with a pressing hole, and the pressing assembly passes through the side wall of the pressing hole.

[0008] In one or more embodiments of the utility model, one side end face of the fixture base is provided with a first fixing hole, one side end face of the machine shell positioning boss is provided with a second fixing hole, the first fixing hole is provided with an internal thread, and a fixing bolt is threadedly connected in the first fixing hole and passes through the side wall of the first fixing hole.

[0009] In one or more embodiments of the utility model, one side end face of the fixture base is fixedly connected with a positioning column, and one side end face of the machine shell positioning boss is provided with a positioning hole matched with the positioning column.

[0010] In one or more embodiments of the utility model, the machine shell positioning boss comprises a protruding block matched with a machine shell ring at the top of the machine shell, and the thickness of the protruding block is less than the thickness of the machine shell ring.

[0011] In one or more embodiments of the utility model, the compression assembly includes telescopic link, the telescopic link is inner hexagonal screw rod, the telescopic link is screwed on the cylinder, the one side end surface of telescopic link is clamped with the U type lock block matched with the shell ring of shell top.

[0012] In one or more embodiments of the utility model, the one side end surface of U type lock block and telescopic link bolt head contact is pasted with magnet.

[0013] In one or more embodiments of the utility model, the one side end surface of telescopic link is fixedly connected with first limiting assembly, and the first recess matched with first limiting assembly is formed in U type lock block.

[0014] In one or more embodiments of the utility model, the first limiting assembly includes fixed ring, the outer diameter of fixed ring is less than or equal to the outer diameter of telescopic link bolt head, the fixed ring is fixedly connected on the outer side wall of telescopic link, and the U type lock block is clamped on fixed ring.

[0015] In one or more embodiments of the utility model, the one side end surface of fixed ring is fixedly connected with third limiting block and fourth limiting block, the fourth recess matched with fourth limiting block is formed in the one side end surface of U type lock block, and the fifth recess matched with third limiting block is formed in the side wall of first recess.

[0016] In one or more embodiments of the utility model, the one side end surface of U type lock block is fixedly connected with first limiting block, the second recess matched with first limiting block is formed in the one side end surface of telescopic link, the second limiting block is integrally formed in the one side end surface of first limiting block, and the third recess matched with second limiting block is formed in the one side end surface of telescopic link.

[0017] Compared with the prior art, the utility model discloses a kind of quick clamping shell clamps, simple structure, easy operation, can realize the quick clamping and unloading of workpiece, clamping is stable, safety is high, machining precision is good, production efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the following embodiment or prior art description will be simply introduced, and obviously, the drawings in the following description are only some embodiments in the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0019] Figure 1 It is the perspective view of one embodiment of the utility model quick clamping shell clamp.

[0020] Figure 2 It is a sectional view of a quick clamping shell clamp in one embodiment of the utility model;

[0021] Figure 3 It is Figure 2 It is a structure schematic view in A of the embodiment;

[0022] Figure 4 It is an exploded view of the structure of the quick clamping shell clamp in one embodiment of the utility model;

[0023] Figure 5 It is an exploded view of the structure of the compression assembly in the second embodiment;

[0024] Figure 6 It is a sectional view of the compression assembly in the second embodiment;

[0025] Figure 7 It is an exploded view of the structure of the compression assembly in the third embodiment;

[0026] Figure 8 It is a sectional view of the compression assembly in the third embodiment.

[0027] Main figure mark explanation:

[0028] 1-clamp base, 101-compression hole, 102-first fixed hole, 103-positioning column, 104-fixed bolt, 2-shell positioning boss, 201-bump, 202-second fixed hole, 203-positioning hole, 3-compression assembly, 301- telescopic rod, 302-U type lock block, 303-fixed ring, 304-first recess, 305-second recess, 306-first limit block, 307-third recess, 308-second limit block, 309-third limit block, 310-fourth limit block, 311-fourth recess, 312-fifth recess, 4-cylinder, 401-push rod, 5-differential shell, 501-shell ring. DETAILED DESCRIPTION

[0029] In order to make the person in the art better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.

[0030] Embodiment 1

[0031] As Figures 1 to 4As shown, the utility model discloses a kind of quick clamping machine shell clamps in one embodiment, including fixture base 1, positioning assembly and compression mechanism, positioning assembly and compression mechanism are all installed on fixture base 1, positioning assembly is used to position differential mechanism shell 5, compression mechanism is used to compress differential mechanism shell 5, make differential mechanism shell 5 be fixed in fixture base 1.

[0032] Four sets of positioning assembly and compression mechanism are fixed on fixture base 1, each set of positioning assembly and compression mechanism cooperate with each other to clamp four differential mechanism shells 5 simultaneously, can be mass-produced, improve production efficiency.

[0033] Positioning assembly includes shell positioning boss 2, shell positioning boss 2 is matched with differential mechanism shell 5, after differential mechanism shell 5 is sleeved on shell positioning boss 2, the inner diameter of differential mechanism shell 5 is matched with the outer diameter of shell positioning boss 2, so that differential mechanism shell 5 does not shake, while the top end of shell positioning boss 2 is the boss 201 matched with shell ring inside shell, the thickness of boss 201 is less than the thickness of shell ring, when compression mechanism is compressed downward differential mechanism shell 5, it does not touch shell positioning boss 2, so that compression mechanism can firmly press differential mechanism shell 5.

[0034] Second fixed hole 202 is formed in the side end surface of shell positioning boss 2, first fixed hole 102 is formed in the side end surface of fixture base 1, first fixed hole 102 is provided with internal thread, fixed bolt 104 is connected in the internal thread of first fixed hole 102, fixed bolt 104 passes through the side wall of first fixed hole 102, and shell positioning boss 2 is fixed on fixture base 1 by fixed bolt 104, and at the same time, shell positioning boss 2 can be disassembled and replaced when needed, which can increase the applicability of the clamp and make the clamp applicable to differential mechanism shells 5 of different models.

[0035] Positioning column 103 is welded on the side end surface of fixture base 1, and positioning hole 203 matched with positioning column 103 is formed in the side end surface of shell positioning boss 2, which can ensure the accurate position of shell positioning boss 2 and prevent the position of shell positioning boss 2 from moving during workpiece machining.

[0036] Compression mechanism includes cylinder 4, cylinder 4 is installed on the lower side of fixture base 1, cylinder 4 includes push rod 401, push rod 401 is threadedly connected with compression assembly 3 matched with shell, compression hole 101 is formed in the side end surface of fixture base 1, compression assembly 3 passes through the side wall of compression hole 101, cylinder 4 has the same working principle and function as the cylinder in the patent document with application number CN201720596818.3, and cylinder 4 can drive compression assembly 3 to extend and retract through push rod 401.

[0037] The pressing assembly 3 comprises a telescopic rod 301 which is a hexagonal screw rod and is threadedly connected to the air cylinder 4. Different models of telescopic rods 301 can be replaced according to different models of the differential housing 5. A U-shaped lock block 302 matched with the housing ring is clamped on one side end face of the telescopic rod 301. The outer diameter of the U-shaped lock block 302 is the same as the diameter of the housing ring 501. The U-shaped lock block 302 can be clamped into the hole above the differential housing 5 and abut against the housing ring 501, so as to press the differential housing 5. When the differential housing 5 is clamped by the clamp, the differential housing 5 is sleeved on the housing positioning boss 2 after passing through the telescopic rod 301. The air cylinder 4 is retracted to drive the telescopic rod 301 to retract. The telescopic rod 301 abuts against the upper side end face of the U-shaped lock block 302. The U-shaped lock block 302 abuts against the upper side end face of the housing ring 501, so as to realize the fastening of the differential housing 5.

[0038] A magnet is pasted on the side end face of the U-shaped lock block 302 in contact with the bolt head of the telescopic rod 301. After processing, when the differential housing 5 is removed, the air cylinder 4 drives the telescopic rod 301 to extend. Under the magnetic attraction of the magnet, the telescopic rod 301 sucks the U-shaped lock block 302 from the differential housing 5. At this time, the U-shaped lock block 302 can be removed, and then the differential housing 5 is removed.

[0039] Example 2

[0040] As shown in Figure 5 and Figure 6 , one side end face of the telescopic rod 301 is fixedly connected with a first limiting assembly which is one of a circular sheet or a rectangular sheet. The first limiting assembly clamps the U-shaped lock block 302 so that the U-shaped lock block 302 can move up and down with the telescopic rod 301, and meanwhile, the U-shaped lock block 302 can be removed from the telescopic rod 301,

[0041] Preferably, the first limiting component is a fixed ring 303, the outer diameter of the fixed ring 303 is less than or equal to the outer diameter of the screw cap of the telescopic rod 301, which does not affect the telescopic rod 301 passing through the differential housing 5, the fixed ring 303 is fixedly connected to the outer side wall of the telescopic rod 301, and the U-shaped lock block 302 is provided with a first groove 304 matched with the fixed ring 303, and the U-shaped lock block 302 is clamped on the fixed ring 303. The width of the first groove 304 is greater than the thickness of the fixed ring 303, when the telescopic rod 301 moves upward, the upper surface of the fixed ring 303 abuts against the upper side wall of the first groove 304, at this time, the upper surface of the U-shaped lock block 302 does not contact the bolt head of the telescopic rod 301; when the telescopic rod 301 presses the U-shaped lock block 302, the upper surface of the fixed ring 303 does not contact the upper side wall of the first groove 304 and the lower surface of the fixed ring 303 also does not contact the lower side wall of the first groove 304, in this way, when pressed, the telescopic rod 301 only exerts pressure on the U-shaped lock block 302 through the bolt head, and the fixed ring 303 does not exert pressure on the U-shaped lock block 302, thus, the fixed ring 303 does not need to bear a large pressure, and only needs to be able to drive the U-shaped lock block 302 to move upward.

[0042] The second limiting component is arranged on the pressing assembly 3, when the telescopic rod 301 drives the U-shaped lock block 302 to move up and down, the second limiting component can make the U-shaped lock block 302 firmly contact with the telescopic rod 301 and not shake, so that the U-shaped lock block 302 can accurately fall onto the housing ring 501 in the hole above the differential housing 5.

[0043] The second limiting component includes a first limiting block 306, the first limiting block 306 is welded to the upper side end face of the U-shaped lock block 302, and the side end face of the telescopic rod 301 is provided with a second groove 305 matched with the first limiting block 306, when the first limiting block 306 is clamped in the side wall of the second groove 305, the U-shaped lock block 302 will be clamped and cannot rotate around the telescopic rod 301. The side end face of the first limiting block 306 is integrally formed with a second limiting block 308, and the side end face of the telescopic rod 301 is provided with a third groove 307 matched with the second limiting block 308, when the second limiting block 308 is clamped in the third groove 307, the radial movement of the U-shaped lock block 302 along the telescopic rod 301 is also limited. Under the joint action of the first limiting block 306 and the second limiting block 308, the circumferential and radial displacement of the U-shaped lock block 302 along the telescopic rod 301 is limited, and the U-shaped lock block 302 can only move up and down. When it is necessary to remove the U-shaped lock block 302, the U-shaped lock block 302 can be slightly lifted, the second limiting block 308 is moved out of the side wall of the third groove 307, and then the first limiting block 306 is moved out of the side wall of the second groove 305, so that the U-shaped lock block 302 can be removed.

[0044] The quick clamping shell fixture of embodiment 2 is different from that of embodiment 1 in that: in the present embodiment, the U-shaped lock block 302 is not magnetically attracted to the telescopic rod 301 by the magnet, but the first limiting assembly is used to cooperate with the first groove 304 formed on the U-shaped lock block 302 to realize the lifting of the U-shaped lock block 302 from the differential shell 5. The quick clamping shell fixture of the present embodiment can prevent the relative displacement between the U-shaped lock block 302 and the telescopic rod 301 when the U-shaped lock block 302 is moved, and the U-shaped lock block 302 can be more stable when entering or exiting the hole above the differential shell 5.

[0045] Embodiment 3

[0046] As shown in Figure 7 and Figure 8 , the second limiting assembly includes a third limiting block 309 and a fourth limiting block 310, both of which are fixedly connected to the upper side end face of the fixed ring 303. The side end face of the U-shaped lock block 302 is provided with a fourth groove 311 matched with the fourth limiting block 310, and the sidewall of the first groove 304 is provided with a fifth groove 312 matched with the third limiting block 309. The fourth limiting block 310 is clamped in the fourth groove 311 to limit the rotation of the U-shaped lock block 302 along the circumference of the telescopic rod 301, and the third limiting block 309 is clamped in the fifth groove 312 to limit the radial displacement of the U-shaped lock block 302 along the telescopic rod 301. When it is necessary to remove the U-shaped lock block 302, the U-shaped lock block 302 can be slightly lifted, so that the third limiting block 309 is moved out of the sidewall of the fifth groove 312, and then the fourth limiting block 310 is moved out of the sidewall of the fourth groove 311, so that the U-shaped lock block 302 can be removed.

[0047] The quick clamping shell fixture of embodiment 3 is different from that of embodiment 2 in that: the structure and position of the second limiting assembly are different. The second limiting assembly of the present embodiment is welded on the fixed ring 303, so that the end face of the U-shaped lock block 302 used by the quick clamping shell fixture of the present embodiment remains flat, and the U-shaped lock block 302 is more convenient to take and store.

[0048] In use, as shown in Figure 1As shown, the differential housing 5 is placed on the housing positioning boss 2, the inner diameter of the differential housing 5 matches the outer diameter of the housing positioning boss 2, so that the differential housing 5 is tightly attached to the housing positioning boss 2, so that the housing positioning boss 2 can prevent the differential housing 5 from moving along the upper surface of the clamp base 1, at this time the cylinder 4 pushes the telescopic rod 301 to extend, and the U-shaped lock block 302 is clamped on the telescopic rod 301, then the cylinder 4 is retracted and drives the telescopic rod 301 to move downward, the U-shaped lock block 302 moves downward and falls into the hole above the differential housing 5 and abuts against the upper surface of the housing ring 501, the telescopic rod 301 is tightened until the U-shaped lock block 302 tightly abuts against the differential housing 5, so that the differential housing 5 does not move perpendicular to the upper surface of the clamp base 1, thereby tightly pressing the differential housing 5, the clamp holds the differential housing 5 stably and safely, so as to provide better machining precision and ensure product quality; when the machining is completed, the cylinder 4 drives the telescopic rod 301 to move upward until the U-shaped lock block 302 is taken out, so that the U-shaped lock block 302 can be removed, and then the machined differential housing 5 is removed.

[0049] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0050] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A quick-clamping machine housing fixture, characterized in that, include: Fixture base; A positioning component, the positioning component including a housing positioning boss, the housing positioning boss being fixedly connected to one side end face of the fixture base, the housing positioning boss being matched with the housing; A clamping mechanism, comprising a cylinder, the cylinder being fixedly connected to one side end face of a clamping base, a clamping assembly matching the machine housing being fixedly connected to one side end face of the cylinder, a clamping hole being provided on one side end face of the clamping base, and the clamping assembly passing through the side wall of the clamping hole.

2. The quick-clamping machine housing fixture according to claim 1, characterized in that, The fixture base has a first fixing hole on one side end face, and the housing positioning boss has a second fixing hole on one side end face. The first fixing hole has an internal thread, and a fixing bolt is connected to the internal thread of the first fixing hole. The fixing bolt passes through the side wall of the first fixing hole.

3. The quick-clamping machine housing fixture according to claim 2, characterized in that, A positioning post is fixedly connected to one end face of the fixture base, and a positioning hole matching the positioning post is opened on one end face of the housing positioning boss.

4. A quick-clamping machine housing fixture according to claim 3, characterized in that, The housing positioning boss includes a protrusion that matches the housing ring on the top of the housing, and the thickness of the protrusion is less than the thickness of the housing ring.

5. A quick-clamping machine housing fixture according to claim 1, characterized in that, The clamping assembly includes a telescopic rod, which is an internal hexagonal screw. The telescopic rod is threaded onto the cylinder, and one end face of the telescopic rod is engaged with a U-shaped locking block that matches the housing ring on the top of the housing.

6. A quick-clamping machine housing fixture according to claim 5, characterized in that, A magnet is attached to the end face of the U-shaped locking block that contacts the bolt head of the telescopic rod.

7. A quick-clamping machine housing fixture according to claim 5, characterized in that, A first limiting component is fixedly connected to one end face of the telescopic rod, and a first groove matching the first limiting component is provided on the U-shaped locking block.

8. A quick-clamping machine housing fixture according to claim 7, characterized in that, The first limiting component includes a fixed ring, the outer diameter of which is less than or equal to the outer diameter of the bolt head of the telescopic rod. The fixed ring is fixedly connected to the outer side wall of the telescopic rod, and the U-shaped locking block is engaged with the fixed ring.

9. A quick-clamping machine housing fixture according to claim 8, characterized in that, The fixed ring is fixedly connected to a third limiting block and a fourth limiting block on one side end face. The U-shaped locking block has a fourth groove that matches the fourth limiting block on one side end face. The first groove has a fifth groove that matches the third limiting block on its side wall.

10. A quick-clamping machine housing fixture according to claim 8, characterized in that, A first limiting block is fixedly connected to one end face of the U-shaped locking block, a second groove matching the first limiting block is opened on one end face of the telescopic rod, a second limiting block is integrally formed on one end face of the first limiting block, and a third groove matching the second limiting block is opened on one end face of the telescopic rod.

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