Clamp for bolt production and machining

Abstract

The invention relates to the technical field of lathe fixtures, and discloses a bolt production and machining fixture which comprises a connecting plate, a mounting groove and a containing groove. A fixing device is mounted in the mounting groove and comprises two driving plates, two guide rods and a double-thread lead screw; the two driving plates are connected to the mounting groove in an opposite or back-to-back sliding manner; the two guide rods are fixedly connected to the mounting groove; the double-thread lead screw is rotationally connected to the side wall of the mounting groove; the two driving plates are connected to the two guide rods in a sliding mode correspondingly, and the two driving plates are connected to the two ends of the double-thread lead screw in a threaded mode correspondingly; first through holes are formed in the two sides of the containing groove correspondingly, pressing rods are slidably connected into the two first through holes correspondingly, the ends, away from each other, of the two pressing rods are fixedly connected to the opposite inner sides of the two driving plates correspondingly, and the opposite ends of the two pressing rods abut against the side wall of the special-shaped head. A first connecting groove is formed in the side wall of the mounting groove, and a driving mechanism used for driving the double-thread lead screw to rotate is mounted in the first connecting groove. According to the special-shaped head bolt fixing device, special-shaped head bolts can be fixed conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of lathe fixtures, and in particular to a fixture for producing and processing bolts. Background Art

[0002] At present, bolts are indispensable fasteners in production and life. They are very common in the machinery manufacturing industry and are indispensable standard parts in the fields of aviation, aerospace, automobiles, ships, etc. They are widely used and have great market demand.

[0003] When machining bolts on a lathe, you will often encounter special-shaped head bolts, such as countersunk head bolts, oval head bolts, etc.

[0004] However, according to the usual clamping idea, the chuck must be replaced to fix the special-shaped head of the bolt. Replacing the chuck on the lathe will inevitably increase the overall time, which will affect the processing efficiency of the bolt, and it is inconvenient to fix the special-shaped head bolt. Summary of the invention

[0005] The present application provides a fixture for bolt production and processing, which is convenient for fixing special-shaped head bolts, and adopts the following technical solutions: 4. The repairing kit for automotive dents, according to claim 1, wherein the two trackbacks are connected along the vertical folding path of the tool shaft through the use of the two trackbacks, and the trackbacks are connected along the vertical folding path of the tool shaft through the use of the two trackbacks.

[0006] When it is necessary to fix the special-shaped head bolt, first move the special-shaped head bolt so that its special-shaped head is in the receiving groove, and then drive the double-threaded screw to rotate through the driving mechanism, and the double-threaded screw rotates to drive the two drive plates to move toward each other, and the two drive plates move toward each other to drive the two clamping rods to move toward each other, and the two clamping rods move toward each other so that the two clamping rods can fix the special-shaped head, and then the special-shaped head bolt can be fixed; in summary, by adopting the above technical solution, it is convenient to fix the special-shaped head bolt. In addition, in addition to being able to fix special-shaped head bolts, the present application can also fix ordinary bolts.

[0007] Optionally, the driving mechanism includes a second through hole opened on the side of the first connecting slot away from the mounting slot, a pushing bolt threadedly connected to the second through hole, and a push plate slidably connected to the first connecting slot; one end of the pushing bolt abuts against one side of the push plate, a driving spring is fixedly connected to the side of the push plate away from the pushing bolt, and an end of the driving spring away from the push plate is fixedly connected to the side wall of the first connecting slot; a driving rod is fixedly connected to the side of the push plate away from the pushing bolt, a connecting tube is fixedly connected to the end of the double-threaded screw close to the push plate, a plurality of spiral blocks are fixedly connected to the side wall of the driving rod, a plurality of spiral grooves are opened on the inner wall of the connecting tube, and the plurality of spiral blocks are matched with the plurality of spiral grooves in a one-to-one manner.

[0008] By adopting the above technical solution, when the double-threaded screw needs to be driven to rotate, the bolt is first driven to rotate by the tool, and then one end of the bolt is pushed to drive the push plate to move, and the movement of the push plate drives the drive rod to move, and then the drive rod drives the connecting tube to rotate under the action of the spiral block and the spiral groove, and the rotation of the connecting tube can drive the double-threaded screw to rotate; in summary, the set driving mechanism is convenient for driving the double-threaded screw to rotate.

[0009] Optionally, the first limiting mechanisms are respectively installed at both ends of the installation groove close to the accommodating groove, two groups of the first limiting mechanisms are arranged corresponding to the two driving plates, and the two groups of the first limiting mechanisms are used to limit the front end of the special-shaped head; the side wall of the installation groove is provided with a second connecting groove, and two groups of second limiting mechanisms are installed in the second connecting groove, two groups of the second limiting mechanisms are arranged corresponding to the two driving plates, and the two groups of the second limiting mechanisms are used to limit the rear end of the special-shaped head.

[0010] By adopting the above technical solution, the first limiting mechanism and the second limiting mechanism are provided, which facilitates the limiting of the special-shaped head.

[0011] Optionally, each group of the first limiting mechanisms includes a third through hole opened on a side of the mounting slot close to the accommodating slot, a first driving block slidably connected to the third through hole, a first resetting component installed on one side of the third through hole for resetting the first driving block, a fourth through hole opened at an end of the third through hole away from the mounting slot, a second driving block slidably connected to the fourth through hole, and a second resetting component installed on one side of the fourth through hole for resetting the second driving block; a first inclined surface is provided at one end of the first driving block close to the driving plate, and the first inclined surface matches the side wall of the driving plate; a second inclined surface is provided on a side of the second driving block close to the first driving block, and the second inclined surface matches the side wall of the first driving block; a first stop block is fixedly connected to a side of the second driving block away from the driving plate, and the first stop block abuts against the front end of the special-shaped head.

[0012] By adopting the above technical solution, when the two driving plates move toward each other under the action of the double-threaded screw, the driving plate drives the first driving block to move under the action of the first inclined surface, and then the first driving block drives the second driving block to move toward the front end direction close to the special-shaped head under the action of the second inclined surface. The second driving block moves toward the front end direction close to the special-shaped head, driving the first stop block to move toward the front end direction close to the special-shaped head, thereby limiting the front end of the special-shaped head; in summary, the first limiting mechanism is set to facilitate limiting the front end of the special-shaped head.

[0013] Optionally, the first reset assembly includes a first reset groove opened on one side of the third through hole, a first reset block slidably connected to the first reset groove, and a first reset spring fixed to one end of the first reset block; the first reset block is fixed to one side of the first driving block; and one end of the first reset spring away from the first reset block is fixed to the inner wall of one end of the first reset groove.

[0014] By adopting the above technical solution, the movement of the first driving block drives the movement of the first reset block, and the movement of the first reset block presses the first reset spring; when the driving plate does not apply force to the first driving block, the first reset block drives the first driving block to reset under the action of the first reset spring; in summary, the first reset assembly is set to facilitate the resetting of the first driving block.

[0015] Optionally, the second reset assembly includes a second reset groove opened on one side of the fourth through hole, a second reset block slidably connected to the second reset groove, and a second reset spring fixed to one end of the second reset block; the second reset block is fixed to one side of the second driving block; and one end of the second reset spring away from the second reset block is fixed to the inner wall of one end of the second reset groove.

[0016] By adopting the above technical solution, the movement of the second driving block drives the movement of the second reset block, and the movement of the second reset block presses the second reset spring; when the first driving block does not apply force to the second driving block, the second reset block drives the second driving block to reset under the action of the second reset spring; in summary, the second reset assembly is set to facilitate the resetting of the second driving block.

[0017] The lockhole that is formed on the second cam is formed on the second cam face, and the lockhole that is formed on the second cam face is formed on the second cam face.

[0018] By adopting the above technical solution, when the two drive plates move toward each other under the action of the double-threaded screw, the drive plate drives the third drive block to move, and then the third drive block drives the second stop block to move toward the rear end of the special-shaped head under the action of the connecting rod, thereby limiting the rear end of the special-shaped head; in summary, the second limiting mechanism is set to facilitate limiting the rear end of the special-shaped head.

[0019] Optionally, a threaded rod is fixedly connected to one end of the connecting plate close to the lathe connecting part, a threaded groove is formed at one end of the lathe connecting part close to the connecting plate, and the threaded rod is threadedly connected to the threaded groove.

[0020] By adopting the above technical solution, the threaded rod and the threaded groove are provided, which facilitates the preliminary fixation of the connecting plate.

[0021] Optionally, a third limiting mechanism is installed on one side of the installation slot close to the lathe connecting portion, and the third limiting mechanism is arranged corresponding to a driving plate.

[0022] By adopting the above technical solution, the third limiting mechanism is provided, which facilitates limiting the connection plate, thereby facilitating stable fixation of the connection plate.

[0023] Optionally, the third limiting mechanism includes a seventh through hole opened on the side of the mounting slot close to the lathe connecting part, a limiting block slidably connected to the seventh through hole, a third reset groove opened on one side of the seventh through hole, a fifth reset block slidably connected to the third reset groove, and a fifth reset spring fixedly connected to one side of the fifth reset block; a third inclined surface is provided on the side of the limiting block close to the driving plate, and the third inclined surface matches the side wall of the driving plate; a limiting groove is provided at one end of the lathe connecting part, and an end of the limiting block away from the driving plate is inserted into the limiting groove, and when the threaded rod is connected to the threaded groove in place, the limiting block is aligned with the limiting groove; the fifth reset block is fixedly connected to one side of the limiting block, and an end of the fifth reset spring away from the fifth reset block is fixedly connected to an inner wall of one end of the third reset groove.

[0024] By adopting the above technical solution, when the two drive plates move toward each other under the action of the double-threaded screw, the drive plate drives the limit block to move toward the limit groove under the action of the third inclined surface, so that the limit block can be plugged into the limit groove, thereby facilitating the limiting of the connecting plate; in summary, the third limit mechanism is set to facilitate the limiting of the connecting plate.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. When it is necessary to fix the special-shaped head bolt, first move the special-shaped head bolt so that its special-shaped head is in the receiving groove, and then drive the double-threaded screw to rotate through the driving mechanism, and the double-threaded screw rotates to drive the two driving plates to move toward each other, and the two driving plates move toward each other to drive the two clamping rods to move toward each other, and the two clamping rods move toward each other so that the two clamping rods can fix the special-shaped head, and then the special-shaped head bolt can be fixed; In summary, by adopting the above technical solution, it is convenient to fix the special-shaped head bolt; In addition, in addition to being able to fix special-shaped head bolts, the present application can also fix ordinary bolts; 2. When the two driving plates move toward each other under the action of the double-threaded lead screw, the driving plate drives the first driving block to move under the action of the first inclined surface, and then the first driving block drives the second driving block to move toward the front end direction of the special-shaped head under the action of the second inclined surface. The second driving block moves toward the front end direction of the special-shaped head and drives the first stopper to move toward the front end direction of the special-shaped head, so that the front end of the special-shaped head can be limited. In summary, the first limiting mechanism is provided to facilitate limiting the front end of the special-shaped head. 3. When the two drive plates move toward each other under the action of the double-threaded screw, the drive plate drives the third drive block to move, and then the third drive block drives the second stop block to move toward the rear end of the special-shaped head under the action of the connecting rod, thereby limiting the rear end of the special-shaped head; in summary, the second limiting mechanism is set to facilitate limiting the rear end of the special-shaped head. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 It is a structural schematic diagram highlighting the fixing device in the embodiment of the present application.

[0028] Figure 3 It is a structural schematic diagram of the highlight driving mechanism in the embodiment of the present application.

[0029] Figure 4 It is a structural schematic diagram highlighting the connection between the driving rod and the connecting pipe in the embodiment of the present application.

[0030] Figure 5 It is a structural schematic diagram highlighting the first limiting mechanism in the embodiment of the present application.

[0031] Figure 6 It is a structural schematic diagram highlighting the second limiting mechanism in the embodiment of the present application.

[0032] Figure 7 It is a structural schematic diagram highlighting the third limiting mechanism in the embodiment of the present application.

[0033] Figure numerals: 1, lathe connection part; 11, special-shaped head bolt; 111, special-shaped head; 12, threaded groove; 2, connecting plate; 21, mounting groove; 22, receiving groove; 23, second connecting groove; 24, threaded rod; 3, fixing device; 31, driving plate; 32, guide rod; 33, double-threaded lead screw; 34, first through hole; 35, clamping rod; 36, first connecting groove; 4, driving mechanism; 41, second through hole; 42, pushing bolt; 43, pushing plate; 44, driving spring; 45, driving rod; 46, connecting pipe; 47, spiral block; 48, spiral groove; 5, first limiting mechanism; 51, third through hole; 52, first driving block; 521, first inclined surface; 53, fourth through hole; 54, second driving block; 5 41. second inclined surface; 55. first stopper; 6. first reset assembly; 61. first reset groove; 62. first reset block; 63. first reset spring; 7. second reset assembly; 71. second reset groove; 72. second reset block; 73. second reset spring; 8. second limiting mechanism; 81. fifth through hole; 82. third drive block; 83. third reset block; 84. third reset spring; 85. sixth through hole; 86. second stopper; 87. fourth reset block; 88. fourth reset spring; 89. connecting rod; 9. third limiting mechanism; 91. seventh through hole; 911. third reset groove; 92. limiting block; 921. third inclined surface; 93. fifth reset block; 94. fifth reset spring; 95. limiting groove. DETAILED DESCRIPTION

[0034] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings.

[0035] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0036] The present application embodiment discloses a fixture for bolt production and processing, referring to Figure 1 and Figure 2 It includes a connecting plate 2 installed on the lathe connecting part 1, a mounting groove 21 opened in the connecting plate 2, and a receiving groove 22 opened at one end of the connecting plate 2 for accommodating the special-shaped head 111 of the special-shaped head bolt 11; a fixing device 3 for fixing the special-shaped head 111 is installed in the mounting groove 21.

[0037] Reference Figure 2 and Figure 3The fixing device 3 includes two driving plates 31 that are slidably connected to the mounting groove 21 in a radial direction toward or away from each other along the connecting plate 2, two guide rods 32 that are fixed to the mounting groove 21, and a double-threaded screw 33 that is rotatably connected to the side wall of the mounting groove 21 through a bearing; the two driving plates 31 are respectively slidably connected to the two guide rods 32, the two guide rods 32 are respectively penetrated through the two driving plates 31, and the two driving plates 31 are respectively threadedly connected to the two ends of the double-threaded screw 33; first through holes 34 are respectively provided on both sides of the accommodating groove 22, and clamping rods 35 are slidably connected in the two first through holes 34, and the ends of the two clamping rods 35 that are away from each other are respectively fixed to the opposite inner sides of the two driving plates 31, and the opposite ends of the two clamping rods 35 are both in contact with the side wall of the special-shaped head 111; a first connecting groove 36 is provided on the side wall of the mounting groove 21, and a driving mechanism 4 for driving the double-threaded screw 33 to rotate is installed in the first connecting groove 36. When the special-shaped head bolt 11 needs to be fixed, the special-shaped head bolt 11 is first moved so that its special-shaped head 111 is in the receiving groove 22, and then the double-threaded screw 33 is driven to rotate by the driving mechanism 4, and the double-threaded screw 33 rotates to drive the two driving plates 31 to move toward each other, and the two driving plates 31 move toward each other to drive the two clamping rods 35 to move toward each other, and the two clamping rods 35 move toward each other so that the two clamping rods 35 can fix the special-shaped head 111, and then the special-shaped head bolt 11 can be fixed; in summary, by adopting the above technical solution, it is convenient to fix the special-shaped head bolt 11. In addition, in addition to being able to fix the special-shaped head bolt 11, the present application can also fix ordinary bolts.

[0038] Reference Figure 2-Figure 4The driving mechanism 4 includes a second through hole 41 opened on the side of the first connecting groove 36 away from the mounting groove 21, a pushing bolt 42 threadedly connected to the second through hole 41, and a push plate 43 connected to the first connecting groove 36 by radial sliding along the connecting plate 2; one end of the pushing bolt 42 abuts against one side of the pushing plate 43, and two driving springs 44 are fixedly connected to the side of the pushing plate 43 away from the pushing bolt 42, and one end of each driving spring 44 away from the pushing plate 43 is fixedly connected to the side wall of the first connecting groove 36; a driving rod 45 is fixedly connected to the side of the pushing plate 43 away from the pushing bolt 42, and a connecting tube 46 is fixedly connected to the end of the double-threaded lead screw 33 close to the pushing plate 43, the driving rod 45 is coaxial with the connecting tube 46, and a plurality of spiral blocks 47 are fixedly connected to the side wall of the driving rod 45, and a plurality of spiral grooves 48 are opened on the inner wall of the connecting tube 46, and the plurality of spiral blocks 47 are matched with the plurality of spiral grooves 48 in a one-to-one correspondence. When it is necessary to drive the double-threaded screw 33 to rotate, first use a tool to drive the push bolt 42 to rotate, and then push one end of the bolt 42 to drive the push plate 43 to move, and the push plate 43 drives the drive rod 45 to move, and then the drive rod 45 drives the connecting tube 46 to rotate under the action of the spiral block 47 and the spiral groove 48, and the rotation of the connecting tube 46 can drive the double-threaded screw 33 to rotate; in summary, the set driving mechanism 4 is convenient for driving the double-threaded screw 33 to rotate.

[0039] Reference Figure 2 and Figure 5 The first limiting mechanisms 5 are installed at both ends of the installation groove 21 near the receiving groove 22. The two sets of first limiting mechanisms 5 are arranged corresponding to the two driving plates 31. The two sets of first limiting mechanisms 5 are used to limit the front end of the special-shaped head 111. The side wall of the installation groove 21 is provided with a second connecting groove 23. Two sets of second limiting mechanisms 8 are installed in the second connecting groove 23. The two sets of second limiting mechanisms 8 are arranged corresponding to the two driving plates 31. The two sets of second limiting mechanisms 8 are used to limit the rear end of the special-shaped head 111. The first limiting mechanism 5 and the second limiting mechanism 8 are arranged to facilitate the limiting of the special-shaped head 111.

[0040] Reference Figure 2 and Figure 5Each set of first limiting mechanisms 5 includes a third through hole 51 opened at one side of the mounting groove 21 close to the accommodating groove 22, a first driving block 52 connected to the third through hole 51 by sliding along the axial direction of the connecting plate 2, a first resetting component 6 installed at one side of the third through hole 51 for resetting the first driving block 52, a fourth through hole 53 opened at one end of the third through hole 51 away from the mounting groove 21, a second driving block 54 connected to the fourth through hole 53 by sliding along the radial direction of the connecting plate 2, and a first resetting component 6 installed at one side of the fourth through hole 53 for resetting the first driving block 52. A second reset component 7 is provided for resetting the second driving block 54; a first inclined surface 521 is provided at one end of the first driving block 52 close to the driving plate 31, and the first inclined surface 521 matches the side wall of the driving plate 31; a second inclined surface 541 is provided at one side of the second driving block 54 close to the first driving block 52, and the second inclined surface 541 matches the side wall of the first driving block 52; a first stopper 55 is fixedly connected to one side of the second driving block 54 away from the driving plate 31, and the first stopper 55 abuts against the front end of the special-shaped head 111. When the two driving plates 31 move toward each other under the action of the double-threaded screw 33, the driving plate 31 drives the first driving block 52 to move under the action of the first inclined surface 521, and then the first driving block 52 drives the second driving block 54 to move toward the front end direction of the special-shaped head 111 under the action of the second inclined surface 541. The second driving block 54 moves toward the front end direction of the special-shaped head 111, driving the first stop block 55 to move toward the front end direction of the special-shaped head 111, thereby limiting the front end of the special-shaped head 111. In summary, the first limiting mechanism 5 is set to facilitate limiting the front end of the special-shaped head 111.

[0041] Reference Figure 2 and Figure 5 The first reset assembly 6 includes a first reset groove 61 provided at one side of the third through hole 51, a first reset block 62 connected to the first reset groove 61 by sliding along the axial direction of the connecting plate 2, and a first reset spring 63 fixed to one end of the first reset block 62; the first reset block 62 is fixed to one side of the first driving block 52; one end of the first reset spring 63 away from the first reset block 62 is fixed to the inner wall of one end of the first reset groove 61. The movement of the first driving block 52 drives the first reset block 62 to move, and the movement of the first reset block 62 presses the first reset spring 63; when the driving plate 31 does not apply force to the first driving block 52, the first reset block 62 drives the first driving block 52 to reset under the action of the first reset spring 63; in summary, the first reset assembly 6 is provided to facilitate the first driving block 52 to reset.

[0042] Reference Figure 2 and Figure 5The second reset assembly 7 includes a second reset groove 71 opened on one side of the fourth through hole 53, a second reset block 72 connected to the second reset groove 71 by sliding along the radial direction of the connecting plate 2, and a second reset spring 73 fixed to one end of the second reset block 72; the second reset block 72 is fixed to one side of the second driving block 54; one end of the second reset spring 73 away from the second reset block 72 is fixed to the inner wall of one end of the second reset groove 71. The movement of the second driving block 54 drives the second reset block 72 to move, and the movement of the second reset block 72 presses the second reset spring 73; when the first driving block 52 does not apply force to the second driving block 54, the second reset block 72 drives the second driving block 54 to reset under the action of the second reset spring 73; in summary, the second reset assembly 7 is set to facilitate the reset of the second driving block 54.

[0043] Reference Figure 2 and Figure 6 Each set of second limiting mechanisms 8 includes a fifth through hole 81 opened on the side wall of the second connecting groove 23, a third driving block 82 connected to the fifth through hole 81 by radial sliding movement along the connecting plate 2, a third reset block 83 fixed to one side of the third driving block 82, and a third reset spring 84 fixed to one side of the third reset block 83; one end of the third driving block 82 abuts against one side of the driving plate 31, and one end of the third reset spring 84 away from the third reset block 83 is fixed to the side wall of the second connecting groove 23; the second limiting mechanism 8 also includes a third through hole 81 opened on the side wall of the second connecting groove 23 near the accommodating groove 22 A sixth through hole 85 on the side wall, a second stopper 86 connected to the sixth through hole 85 along the axial sliding of the connecting plate 2, a fourth reset block 87 fixed to one side of the second stopper 86, and a fourth reset spring 88 fixed to one side of the fourth reset block 87; one end of the second stopper 86 abuts against the rear end of the special-shaped head 111, and one end of the fourth reset spring 88 away from the fourth reset block 87 is fixed to the side wall of the second connecting groove 23; a connecting rod 89 is hinged between the third driving block 82 and the second stopper 86, and both ends of the connecting rod 89 are respectively hinged to the third driving block 82 and the second stopper 86. When the two drive plates 31 move toward each other under the action of the double-threaded screw 33, the drive plate 31 drives the third drive block 82 to move, and then the third drive block 82 drives the second stop block 86 to move toward the rear end of the special-shaped head 111 under the action of the connecting rod 89, so that the rear end of the special-shaped head 111 can be limited; in summary, the second limiting mechanism 8 is set to facilitate limiting the rear end of the special-shaped head 111.

[0044] Reference Figure 2 and Figure 7 The end of the connecting plate 2 near the lathe connecting part 1 is fixedly connected with a threaded rod 24, and the end of the lathe connecting part 1 near the connecting plate 2 is provided with a threaded groove 12, and the threaded rod 24 is threadedly connected to the threaded groove 12. The threaded rod 24 and the threaded groove 12 are provided to facilitate the preliminary fixing of the connecting plate 2.

[0045] Reference Figure 2 and Figure 7 A third limiting mechanism 9 is installed on one side of the mounting groove 21 close to the lathe connection part 1, and the third limiting mechanism 9 is arranged corresponding to a driving plate 31. The third limiting mechanism 9 is arranged to facilitate limiting the connection plate 2, so as to facilitate stable fixing of the connection plate 2.

[0046] Reference Figure 2 and Figure 7 The third limiting mechanism 9 includes a seventh through hole 91 provided on the side of the mounting groove 21 close to the lathe connection part 1, a limiting block 92 connected to the seventh through hole 91 along the axial sliding of the connecting plate 2, a third reset groove 911 provided on one side of the seventh through hole 91, a fifth reset block 93 connected to the third reset groove 911 along the axial sliding of the connecting plate 2, and a fifth reset spring 94 fixed to one side of the fifth reset block 93; a third inclined surface 921 is provided on the side of the limiting block 92 close to the driving plate 31, and the third inclined surface 921 matches the side wall of the driving plate 31; a limiting groove 95 is provided at one end of the lathe connection part 1, and an end of the limiting block 92 away from the driving plate 31 is inserted into the limiting groove 95, and when the threaded rod 24 is connected to the threaded groove 12 in place, the limiting block 92 is aligned with the limiting groove 95; the fifth reset block 93 is fixed to one side of the limiting block 92, and an end of the fifth reset spring 94 away from the fifth reset block 93 is fixed to the inner wall of one end of the third reset groove 911. When the two driving plates 31 move toward each other under the action of the double-threaded screw 33, the driving plate 31 drives the limit block 92 to move toward the limit groove 95 under the action of the third inclined surface 921, so that the limit block 92 can be plugged into the limit groove 95, thereby facilitating the limiting of the connecting plate 2; in summary, the third limiting mechanism 9 is set to facilitate the limiting of the connecting plate 2.

[0047] Working principle: when it is necessary to fix the special-shaped head bolt 11, first move the special-shaped head bolt 11 so that its special-shaped head 111 is in the accommodating groove 22, and then drive the push bolt 42 to rotate by using a tool, and then push one end of the bolt 42 to drive the push plate 43 to move, and the push plate 43 moves to drive the driving rod 45 to move, and then the driving rod 45 drives the connecting pipe 46 to rotate under the action of the spiral block 47 and the spiral groove 48, and the connecting pipe 46 rotates to drive the double-threaded screw 33 to rotate, and the double-threaded screw 33 rotates to drive the two driving plates 31 to move toward each other, and the two driving plates 31 move toward each other to drive the two clamping rods 35 to move toward each other, and the two clamping rods 35 move toward each other, so that the two clamping rods 35 can fix the special-shaped head 111, and then the special-shaped head bolt 11 can be fixed; in summary, by adopting the above technical scheme, it is convenient to fix the special-shaped head bolt 11.

[0048] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A fixture for bolt production and processing, characterized in that: The invention comprises a connecting plate (2) mounted on a connecting portion (1) of a lathe, a mounting groove (21) provided in the connecting plate (2), and a receiving groove (22) provided at one end of the connecting plate (2) for receiving a shaped head (111) of a shaped head bolt (11); a fixing device (3) for fixing the shaped head (111) is installed in the mounting groove (21), and the fixing device (3) comprises two driving plates (31) connected to the mounting groove (21) in a sliding manner towards or away from each other, two guide rods (32) fixedly connected to the mounting groove (21), and a double-threaded lead screw (33) rotatably connected to a side wall of the mounting groove (21); the two driving plates (31) are connected to the mounting groove (21) in a sliding manner, respectively. Two guide rods (32), the two driving plates (31) are respectively threadedly connected to the two ends of the double-threaded lead screw (33); first through holes (34) are respectively opened on both sides of the accommodating groove (22), and clamping rods (35) are slidably connected in the two first through holes (34), and the ends of the two clamping rods (35) that are far away from each other are respectively fixed to the opposite inner sides of the two driving plates (31), and the opposite ends of the two clamping rods (35) are both in contact with the side wall of the special-shaped head (111); a first connecting groove (36) is opened on the side wall of the installation groove (21), and a driving mechanism (4) for driving the double-threaded lead screw (33) to rotate is installed in the first connecting groove (36).

2. A fixture for bolt production and processing according to claim 1, characterized in that: The driving mechanism (4) comprises a second through hole (41) provided on a side of the first connecting groove (36) away from the mounting groove (21), a pushing bolt (42) threadedly connected to the second through hole (41), and a push plate (43) slidably connected to the first connecting groove (36); one end of the pushing bolt (42) abuts against one side of the push plate (43), a driving spring (44) is fixedly connected to a side of the push plate (43) away from the pushing bolt (42), and the driving spring (44) is away from the push plate (4 3) is fixedly connected to the side wall of the first connecting groove (36); a driving rod (45) is fixedly connected to the side of the push plate (43) away from the pushing bolt (42), and a connecting tube (46) is fixedly connected to the end of the double-threaded screw (33) close to the push plate (43); a plurality of spiral blocks (47) are fixedly connected to the side wall of the driving rod (45), and a plurality of spiral grooves (48) are formed on the inner wall of the connecting tube (46), and the plurality of spiral blocks (47) are matched with the plurality of spiral grooves (48) in a one-to-one correspondence.

3. A fixture for bolt production and processing according to claim 1, characterized in that: The first limiting mechanisms (5) are respectively installed at both ends of the installation groove (21) on the side close to the accommodating groove (22), and two groups of the first limiting mechanisms (5) are arranged corresponding to the two driving plates (31), and the two groups of the first limiting mechanisms (5) are used to limit the front end of the special-shaped head (111); the side wall of the installation groove (21) is provided with a second connecting groove (23), and two groups of second limiting mechanisms (8) are installed in the second connecting groove (23), and the two groups of the second limiting mechanisms (8) are arranged corresponding to the two driving plates (31), and the two groups of the second limiting mechanisms (8) are used to limit the rear end of the special-shaped head (111).

4. A fixture for bolt production and processing according to claim 3, characterized in that: Each group of the first limiting mechanisms (5) comprises a third through hole (51) provided at a side of the mounting groove (21) close to the accommodating groove (22), a first driving block (52) slidably connected to the third through hole (51), a first resetting component (6) installed at one side of the third through hole (51) and used for resetting the first driving block (52), a fourth through hole (53) provided at an end of the third through hole (51) away from the mounting groove (21), a second driving block (54) slidably connected to the fourth through hole (53), and a second resetting component (6) installed at one side of the fourth through hole (53) and used for resetting the second driving block (54). A reset assembly (7); a first inclined surface (521) is provided at one end of the first driving block (52) close to the driving plate (31), and the first inclined surface (521) matches the side wall of the driving plate (31); a second inclined surface (541) is provided at one side of the second driving block (54) close to the first driving block (52), and the second inclined surface (541) matches the side wall of the first driving block (52); a first stopper (55) is fixedly connected to one side of the second driving block (54) away from the driving plate (31), and the first stopper (55) abuts against the front end of the special-shaped head (111).

5. A fixture for bolt production and processing according to claim 4, characterized in that: The first reset assembly (6) comprises a first reset groove (61) opened on one side of the third through hole (51), a first reset block (62) slidably connected to the first reset groove (61), and a first reset spring (63) fixedly connected to one end of the first reset block (62); the first reset block (62) is fixedly connected to one side of the first driving block (52); and one end of the first reset spring (63) away from the first reset block (62) is fixedly connected to the inner wall of one end of the first reset groove (61).

6. A fixture for bolt production and processing according to claim 4, characterized in that: The second reset assembly (7) comprises a second reset groove (71) opened on one side of the fourth through hole (53), a second reset block (72) slidably connected to the second reset groove (71), and a second reset spring (73) fixedly connected to one end of the second reset block (72); the second reset block (72) is fixedly connected to one side of the second driving block (54); and one end of the second reset spring (73) away from the second reset block (72) is fixedly connected to the inner wall of one end of the second reset groove (71).

7. A fixture for bolt production and processing according to claim 3, characterized in that: Each group of the second limiting mechanisms (8) comprises a fifth through hole (81) provided on the side wall of the second connecting groove (23), a third driving block (82) slidably connected to the fifth through hole (81), a third reset block (83) fixedly connected to one side of the third driving block (82), and a third reset spring (84) fixedly connected to one side of the third reset block (83); one end of the third driving block (82) abuts against one side of the driving plate (31), and one end of the third reset spring (84) away from the third reset block (83) is fixedly connected to the side wall of the second connecting groove (23); the second limiting mechanisms (8) also comprise a third through hole (81) provided on the second connecting groove (23); A sixth through hole (85) is provided on the side wall of the connecting groove (23) close to the accommodating groove (22), a second stopper (86) slidably connected to the sixth through hole (85), a fourth reset block (87) fixedly connected to one side of the second stopper (86), and a fourth reset spring (88) fixedly connected to one side of the fourth reset block (87); one end of the second stopper (86) abuts against the rear end of the special-shaped head (111), and one end of the fourth reset spring (88) away from the fourth reset block (87) is fixedly connected to the side wall of the second connecting groove (23); a connecting rod (89) is hinged between the third driving block (82) and the second stopper (86).

8. A fixture for bolt production and processing according to claim 1, characterized in that: A threaded rod (24) is fixedly connected to one end of the connection plate (2) close to the lathe connection part (1); a threaded groove (12) is provided at one end of the lathe connection part (1) close to the connection plate (2); and the threaded rod (24) is threadedly connected to the threaded groove (12).

9. A fixture for bolt production and processing according to claim 8, characterized in that: A third limiting mechanism (9) is installed on one side of the installation groove (21) close to the lathe connection part (1), and the third limiting mechanism (9) is arranged corresponding to a driving plate (31).

10. A fixture for bolt production and processing according to claim 9, characterized in that: The third limiting mechanism (9) comprises a seventh through hole (91) provided on a side of the installation slot (21) close to the lathe connection portion (1), a limiting block (92) slidably connected to the seventh through hole (91), a third reset groove (911) provided on one side of the seventh through hole (91), a fifth reset block (93) slidably connected to the third reset groove (911), and a fifth reset spring (94) fixed to one side of the fifth reset block (93); a third inclined surface (921) is provided on a side of the limiting block (92) close to the driving plate (31), and the third inclined surface (92 1) matches the side wall of the driving plate (31); a limiting groove (95) is provided at one end of the lathe connecting portion (1), and an end of the limiting block (92) away from the driving plate (31) is inserted into the limiting groove (95); when the threaded rod (24) and the threaded groove (12) are connected in place, the limiting block (92) is aligned with the limiting groove (95); the fifth reset block (93) is fixedly connected to one side of the limiting block (92), and an end of the fifth reset spring (94) away from the fifth reset block (93) is fixedly connected to an inner wall of one end of the third reset groove (911).

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