Broach bar dismounting device

Abstract

The broach rod dismounting device comprises a sleeve, a base and two sets of rotating handles, the sleeve comprises an upper sleeve, a lower sleeve and a connecting sleeve, an upper connecting sleeve is formed on the inner ring of the lower end face of the upper sleeve, a lower connecting sleeve is formed on the inner ring of the upper end face of the lower sleeve, and the upper connecting sleeve and the lower connecting sleeve are connected to the upper end and the lower end of the connecting sleeve in a screwed mode respectively. A check ring is formed on the inner wall of the upper end of the upper sleeve, and internal threads are formed on the inner wall of the lower end of the lower sleeve. The base comprises a round rotating seat, an external thread boss is formed on the upper end face of the rotating seat, center holes are formed in the middle of the external thread boss and the middle of the rotating seat, the external thread boss is connected into the lower sleeve in a threaded mode, and rotating handles are fixedly connected to the outer walls of the two sides of the rotating seat respectively. According to the dismounting device, the disc spring on the broach rod can be compressed, the head part of the broach rod is separated from the constraint of the disc spring, then the head part is conveniently dismounted, the length of the dismounting device is adjustable, and broach rods with different lengths can be dismounted.

Description

Technical field:

[0001] The utility model relates to the technical field of disassembly devices, and more particularly to a tool bar disassembly device. Background technology:

[0002] The spindle toolholder structure currently on the market is as follows Figure 1 As shown, it includes broaching claws, Latin, protective sleeve, protective sleeve base, broaching rod core, disc spring, rod core base and tail rod and other components. Its claws, Latin, protective sleeve and protective sleeve base are located on the upper part of the broaching rod core, forming the head component of the broaching rod. The rod core base and tail rod are located at the lower part of the broaching rod core, forming the tail component of the broaching rod. The disc spring sleeve is arranged on the broaching rod core and clamped between the protective sleeve base and the rod core base. Because the disc spring is in a state, the head component of the broaching rod is difficult to disassemble. The spindle broaching rod is inevitably damaged during use, and the corresponding damaged parts need to be disassembled and replaced. Therefore, it is necessary to design a tooling fixture that is convenient for disassembly. Moreover, the spindle broaching rods currently used have multiple specifications of different lengths, and the tooling fixture needs to be universal. Utility model content:

[0003] The purpose of the present utility model is to address the deficiencies of the existing technology and to provide a broach rod disassembly device, which can compress the disc spring on the broach rod, so that the head component of the broach rod can be separated from the constraint of the disc spring, thereby facilitating the disassembly of the head component. Moreover, the length of the disassembly device is adjustable, so broach rods of different lengths can be disassembled.

[0004] A broach rod disassembly device comprises a sleeve, a base and two sets of rotating handles. The sleeve comprises an upper sleeve, a lower sleeve and a connecting sleeve. The inner ring of the lower end surface of the upper sleeve is formed with an upper connecting sleeve extending downward, and the inner ring of the upper end surface of the lower sleeve is formed with a lower connecting sleeve extending upward. The upper connecting sleeve and the lower connecting sleeve are respectively screwed to the upper and lower ends of the connecting sleeve. A retaining ring is formed on the inner wall of the upper end of the upper sleeve, and an internal thread is formed on the inner wall of the lower end of the lower sleeve.

[0005] The outer walls on the left and right sides of the upper sleeve are respectively formed with upper supporting ears in the shape of a vertical strip, and the outer walls on the left and right sides of the lower sleeve are respectively formed with lower supporting ears in the shape of a strip and opposite to the upper supporting ears. An upper threaded hole is formed in the upper supporting ear of the upper sleeve, and a lower threaded hole is formed in the lower supporting ear of the lower sleeve; the outer walls on the left and right sides of the connecting sleeve are formed with ear seats in the shape of a vertical strip, and limited insertion holes are formed in the ear seats; the upper threaded hole of the upper sleeve and the lower threaded hole of the lower sleeve are respectively screwed with limited screw rods, and the ends of the limited screw rods are respectively inserted into the limited insertion holes on both sides of the connecting sleeve;

[0006] The base includes a circular rotating seat, an external threaded boss is formed on the upper end surface of the rotating seat, a center hole is formed in the middle of the external threaded boss and the rotating seat, the external threaded boss is screwed into the lower sleeve, and rotating handles are fixed to the outer walls on both sides of the rotating seat.

[0007] Preferably, the rotating handle is a round rod, the central axis of the rotating handle is perpendicular to the central axis of the rotating seat, and a stud is formed at one end of the rotating handle, and the stud is screwed and fixed on the rotating seat.

[0008] Preferably, the outer walls on the front and rear sides of the upper sleeve are respectively formed with planar upper clamping planes, and the outer walls on the front and rear sides of the lower sleeve are respectively formed with planar lower clamping planes, and the upper clamping planes are flush with the lower clamping planes.

[0009] Preferably, the inner wall of the upper sleeve, the inner wall of the upper connecting sleeve, the inner wall of the lower connecting sleeve and the inner wall of the lower sleeve are all within the same cylindrical surface.

[0010] Preferably, the central axes of the two sets of rotating handles on the base are on the same straight line.

[0011] Preferably, the length of the connecting sleeve is greater than the length of the upper sleeve and the lower sleeve, the length of the upper connecting sleeve is equal to the length of the lower connecting sleeve, and a convex ring is formed on the inner wall of the middle part of the connecting sleeve, and the upper connecting sleeve and the lower connecting sleeve respectively rest on the upper and lower end faces of the convex ring.

[0012] Preferably, the inner wall of the upper convex ring of the connecting sleeve and the inner wall of the upper sleeve are on the same inner wall.

[0013] The beneficial effects of the present invention are:

[0014] This disassembly device can compress the disc spring on the broach rod, so that the head component of the broach rod is separated from the constraint of the disc spring, thereby facilitating the disassembly of the head component. Moreover, the length of the disassembly device is adjustable, so broach rods of different lengths can be disassembled. Description of the drawings:

[0015] Figure 1 It is a structural diagram of the existing spindle spring broaching rod;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 3 This is a schematic structural diagram of the utility model;

[0018] Figure 4 It is a half-section structural diagram of the utility model.

[0019] In the figure: 1. sleeve; 11. upper sleeve; 111. retaining ring; 112. upper connecting sleeve; 113. upper ear; 114. upper threaded hole; 115. upper clamping plane; 12. lower sleeve; 121. lower connecting sleeve; 122. lower ear; 123. lower threaded hole; 124. lower clamping plane; 13. connecting sleeve; 131. ear seat; 132. limit socket; 2. base; 21. rotating seat; 22. external threaded boss; 23. center hole; 3. rotating handle, 4. limit screw. Specific implementation method:

[0020] Example: See Figure 2 、 3 4, a broach rod disassembly device comprises a sleeve 1, a base 2 and two sets of rotating handles 3, the sleeve 1 comprises an upper sleeve 11, a lower sleeve 12 and a connecting sleeve 13, the inner ring of the lower end surface of the upper sleeve 11 is formed with an upper connecting sleeve 112 extending downward, the inner ring of the upper end surface of the lower sleeve 12 is formed with a lower connecting sleeve 121 extending upward, the upper connecting sleeve 112 and the lower connecting sleeve 121 are respectively screwed to the upper and lower ends of the connecting sleeve 13, a retaining ring 111 is formed on the inner wall of the upper end of the upper sleeve 11, and an internal thread is formed on the inner wall of the lower end of the lower sleeve 12;

[0021] The outer walls on the left and right sides of the upper sleeve 11 are respectively formed with upper supporting ears 113 in the form of vertical strips, and the outer walls on the left and right sides of the lower sleeve 12 are respectively formed with lower supporting ears 122 in the form of strips and opposite to the upper supporting ears 113. The upper supporting ears 113 of the upper sleeve 11 are formed with upper threaded holes 114, and the lower supporting ears 122 of the lower sleeve 12 are formed with lower threaded holes 123. The outer walls on the left and right sides of the connecting sleeve 13 are formed with vertical strip-shaped ear seats 131, and the ear seats 131 are formed with limited position insertion holes 132. The upper threaded holes 114 of the upper sleeve 11 and the lower threaded holes 123 of the lower sleeve 12 are respectively screwed with limited position screw rods 4, and the heads of the limited position screw rods 4 are formed with regular hexagonal concave holes, and the ends of the limited position screw rods 4 are respectively inserted into the limited position insertion holes 132 on both sides of the connecting sleeve 13.

[0022] The base 2 includes a circular rotating seat 21, an external threaded boss 22 is formed on the upper end surface of the rotating seat 21, a center hole 23 is formed in the middle of the external threaded boss 22 and the rotating seat 21, the external threaded boss 22 is screwed into the lower sleeve 12, and rotating handles 3 are respectively fixed to the outer walls on both sides of the rotating seat 21.

[0023] The rotating handle 3 is a round rod, the central axis of the rotating handle 3 is perpendicular to the central axis of the rotating seat 21, and a stud is formed at one end of the rotating handle 3, which is screwed and fixed on the rotating seat 21, making the rotating handle 3 easy to install and disassemble.

[0024] The outer walls on the front and rear sides of the upper sleeve 11 are respectively formed with planar upper clamping planes 115, and the outer walls on the front and rear sides of the lower sleeve 12 are respectively formed with planar lower clamping planes 124. The clamping planes 115 are flush with the lower clamping planes 124, and the upper clamping plane 115 of the upper sleeve 11 or the lower clamping plane 124 of the lower sleeve 12 can be clamped by flat-nose pliers to achieve the positioning of the sleeve 1.

[0025] The inner wall of the upper sleeve 11 , the inner wall of the upper connecting sleeve 112 , the inner wall of the lower connecting sleeve 121 and the inner wall of the lower sleeve 12 are all within the same cylindrical surface.

[0026] The central axes of the two sets of rotating handles 3 on the base 2 are on the same straight line.

[0027] The length of the connecting sleeve 13 is respectively greater than the length of the upper sleeve 11 and the lower sleeve 12, the length of the upper connecting sleeve 112 is equal to the length of the lower connecting sleeve 121, and a convex ring is formed on the inner wall of the middle part of the connecting sleeve 13, and the upper connecting sleeve 112 and the lower connecting sleeve 121 respectively abut against the upper and lower end faces of the convex ring. The above-mentioned dimensional constraints can ensure that the sleeve 1 has sufficient length adjustment room.

[0028] The inner wall of the upper convex ring of the connecting sleeve 13 and the inner wall of the upper sleeve 11 are on the same inner wall.

[0029] Working principle: This structure is a broach rod disassembly device, which is an auxiliary tooling for disassembling the broach rod. The broach rod is inserted into the sleeve 1, and the head component of the broach rod extends out of the sleeve 1 through the inner hole of the retaining ring 111. The disc spring abuts against the lower end surface of the retaining ring 111. Then the tail rod of the tail component of the broach rod passes through the central hole 23 of the base 2, so that the external threaded boss 22 on the base 2 abuts against the rod core base of the broach rod. Then the base 2 is screwed into the sleeve 1, and the base 2 is rotated to realize the upward movement of the broach rod core. While compressing the disc spring, the head component of the broach rod moves upward and is free from the constraint of the disc spring, which makes it convenient to disassemble.

[0030] At the same time, the sleeve 1 of the auxiliary tool is composed of an upper sleeve 11, a lower sleeve 12 and a connecting sleeve 13, and the above sleeves are connected by threads, so that the length can be adjusted; but in the process of disassembling the broaching rod, the base 2 drives the broaching rod to rotate due to the friction force, and then there is a problem that the disc spring drives the upper sleeve 11 to rotate, and the rotation of the upper sleeve 11 will cause the length of the sleeve 1 to change, affecting the disassembly of the broaching rod, so a limiting screw rod 4 is provided on the sleeve 1. When the limiting screw rod 4 is inserted into the connecting sleeve 13, the relative rotation between the upper sleeve 11, the lower sleeve 12 and the connecting sleeve 13 can be limited, that is, the length cannot be adjusted;

[0031] On the contrary, the limiting screw rod 4 is hidden in the upper sleeve 11 or the lower sleeve 12 and is separated from the connecting sleeve 13, so that the length of the sleeve 1 can be adjusted.

[0032] The embodiments are intended to illustrate the present invention and are not intended to limit the present invention. Any person skilled in the art may modify the embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A broach rod disassembly device, comprising a sleeve (1), a base (2) and two sets of rotating handles (3), characterized in that: The sleeve (1) comprises an upper sleeve (11), a lower sleeve (12) and a connecting sleeve (13); the inner ring of the lower end surface of the upper sleeve (11) is formed with an upper connecting sleeve (112) extending downward; the inner ring of the upper end surface of the lower sleeve (12) is formed with a lower connecting sleeve (121) extending upward; the upper connecting sleeve (112) and the lower connecting sleeve (121) are respectively screwed to the upper and lower ends of the connecting sleeve (13); a retaining ring (111) is formed on the inner wall of the upper end of the upper sleeve (11); and an internal thread is formed on the inner wall of the lower end of the lower sleeve (12); The outer walls of the left and right sides of the upper sleeve (11) are respectively formed with upper vertical strip-shaped ears (113), and the outer walls of the left and right sides of the lower sleeve (12) are respectively formed with lower vertical strip-shaped ears (122) opposite to the upper ears (113). The upper ears (113) of the upper sleeve (11) are formed with upper threaded holes (114), and the lower ears (122) of the lower sleeve (12) are formed with lower threaded holes (123). Vertical strip-shaped ear seats (131) are formed on the outer walls of the left and right sides of the connecting sleeve (13), and a limiting insertion hole (132) is formed in the ear seat (131); the upper threaded hole (114) of the upper sleeve (11) and the lower threaded hole (123) of the lower sleeve (12) are respectively screwed with a limiting screw rod (4), and the ends of the limiting screw rod (4) are respectively inserted into the limiting insertion holes (132) on both sides of the connecting sleeve (13); The base (2) includes a circular rotating seat (21), an external thread boss (22) is formed on the upper end surface of the rotating seat (21), a center hole (23) is formed in the middle of the external thread boss (22) and the rotating seat (21), the external thread boss (22) is screwed into the lower sleeve (12), and rotating handles (3) are fixed to the outer walls on both sides of the rotating seat (21).

2. The broaching rod disassembly device according to claim 1, characterized in that: The rotating handle (3) is a round rod, the central axis of the rotating handle (3) is perpendicular to the central axis of the rotating seat (21), and a stud is formed on one end of the rotating handle (3), which is screwed and fixed on the rotating seat (21).

3. The broaching rod disassembly device according to claim 1, characterized in that: Planar upper clamping planes (115) are respectively formed on the outer walls of the front and rear sides of the upper sleeve (11), and planar lower clamping planes (124) are respectively formed on the outer walls of the front and rear sides of the lower sleeve (12), and the upper clamping planes (115) are respectively flush with the lower clamping planes (124).

4. The broaching rod disassembly device according to claim 1, characterized in that: The inner wall of the upper sleeve (11), the inner wall of the upper connecting sleeve (112), the inner wall of the lower connecting sleeve (121) and the inner wall of the lower sleeve (12) are all within the same cylindrical surface.

5. The broaching rod disassembly device according to claim 2, characterized in that: The central axes of the two sets of rotating handles (3) on the base (2) are on the same straight line.

6. The broaching rod disassembly device according to claim 4, characterized in that: The length of the connecting sleeve (13) is respectively greater than the length of the upper sleeve (11) and the lower sleeve (12); the length of the upper connecting sleeve (112) is equal to the length of the lower connecting sleeve (121); a convex ring is formed on the inner wall of the middle part of the connecting sleeve (13); the upper connecting sleeve (112) and the lower connecting sleeve (121) respectively abut against the upper and lower end surfaces of the convex ring.

7. The broaching rod disassembly device according to claim 6, characterized in that: The inner wall of the upper convex ring of the connecting sleeve (13) and the inner wall of the upper sleeve (11) are on the same inner wall.

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