Positioning clamp for lead screw machining

Abstract

The utility model relates to the technical field of screw rod processing and positioning, and discloses a positioning fixture for screw rod processing, which comprises a positioning seat and a positioning mechanism, the positioning mechanism comprises a fixed positioning piece, a movable positioning piece and a driving assembly; the driving assembly comprises a driving motor and a lead screw transmission device. A connecting piece is arranged at the bottom end of the movable positioning piece; the clamping assembly comprises a telescopic air cylinder, a fixing piece and a clamping block. The multiple sets of clamping blocks are matched with the fixed positioning piece and the movable positioning piece correspondingly to clamp and fix the lead screw, and the position of the movable positioning piece can be adjusted through cooperation of a positioning base, a positioning mechanism, a driving motor and a lead screw transmission device; the telescopic air cylinder, the clamping block, the fixed positioning piece and the movable positioning piece are matched to quickly clamp and position the lead screw, and the movable positioning piece and the telescopic air cylinder can be disassembled and maintained through the first fixing block, the mounting block, the second fixing block and the fixing piece.

Description

Technical Field

[0001] The utility model relates to the technical field of screw rod processing and positioning, in particular to a positioning fixture used for screw rod processing. Background Art

[0002] A lead screw is a mechanical component, usually consisting of a threaded steel rod and a nut that meshes with it. The threaded steel rod has a spiral, and the nut achieves linear motion or rotation by rotating the threaded steel rod. Lead screws are often used in various mechanical equipment, such as lifting platforms, handling equipment, etc., to achieve precise movement and positioning.

[0003] The screw rod needs to be fixed during processing and then processed, so a positioning fixture for screw rod processing is needed.

[0004] The existing screw rod processing positioning fixture has certain disadvantages when used. When used, the existing screw rod processing positioning fixture is usually manually operated by workers to determine the clamping position of the screw rod by visual inspection, resulting in low screw rod processing positioning clamping accuracy, and the positioning fixture is inconvenient to disassemble and maintain, which cannot meet people's needs. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a positioning fixture for screw rod processing, which can quickly adjust the clamping position of the screw rod and can be disassembled and maintained.

[0007] (II) Technical solution

[0008] The utility model is implemented by the following technical scheme: a positioning fixture for screw rod processing, comprising a positioning seat and a positioning mechanism arranged on the positioning seat; wherein the positioning mechanism comprises a fixed positioning piece detachably fixed to one side of the upper end of the positioning seat, a mobile positioning piece movably arranged on one side of the upper end of the positioning seat, and a driving component for controlling the mobile positioning piece to reciprocate, wherein the mobile positioning piece and the fixed positioning piece cooperate to adjust the spacing, thereby being able to clamp and fix screw rods of various sizes; the fixed positioning piece and the mobile positioning piece are both detachably provided with a clamping component; the driving component comprises a driving motor and a A screw transmission device is arranged inside the positioning seat, and the driving motor and the screw transmission device cooperate to control the movable positioning part to move horizontally; the bottom end of the movable positioning part is provided with a connecting piece connected to the screw transmission device, and the connecting piece can disassemble and separate the screw transmission device and the movable positioning part; the clamping assembly includes symmetrically arranged telescopic cylinders, detachable fixing parts from the telescopic cylinders, and clamping blocks arranged on the inner sides of the two groups of fixing parts; several groups of the telescopic cylinders are detachably arranged on the fixed positioning part and the movable positioning part respectively; several groups of the clamping blocks cooperate with the fixed positioning part and the movable positioning part respectively to clamp and fix the screw.

[0009] Preferably, the fixed positioning member and the movable positioning member both include a positioning block and a support member vertically arranged on the bottom end surface of the positioning block, the screw transmission device controls the movement of the movable positioning member through a connecting member, the upper end of the positioning seat is provided with a groove matching the connecting member, and the screw transmission device controls the movement of the connecting member in the groove.

[0010] Preferably, the support member includes a support block in a "convex" shaped structure and a reinforcement block arranged on the bottom end surface of the support block, and fixing plates are detachably installed on both sides of the outer surface of the support block, and the telescopic cylinder is detachably installed on the fixing plate.

[0011] Preferably, a first fixing block is vertically arranged at one end of the fixing plate, a first fixing groove matching the first fixing block is formed on the supporting block, a first fixing rod for fixing the first fixing block is installed on the supporting block, a first fixing hole matching the first fixing rod is formed on the first fixing block, and the first fixing block and the first fixing rod cooperate to enable the fixing plate to be disassembled and maintained.

[0012] Preferably, a mounting plate is provided at the upper end of the fixed plate away from the supporting block, a mounting block detachably fixed to the mounting plate is vertically provided on the bottom end surface of the telescopic cylinder, and a mounting groove matching the mounting block is provided on the mounting plate.

[0013] Preferably, a reinforcing rod vertically connected to the clamping block is provided at one end of the fixing member, a second fixing block is vertically provided on the output shaft of the telescopic cylinder, two groups of limit blocks are symmetrically provided on the second fixing block, a second fixing groove matching the second fixing block is provided on the fixing member, a second fixing rod detachably connected to the second fixing block is provided on the fixing member, a second fixing hole matching the second fixing rod is provided on the second fixing block, and limit grooves connected to the limit blocks are symmetrically provided at the bottom end of the fixing member, and the limit grooves are connected to the second fixing grooves.

[0014] Preferably, the connecting member includes a first connecting block fixed at the upper end of the screw transmission device and a second connecting block vertically arranged on the bottom end surface of the movable positioning member, the upper end of the first connecting block is provided with a connecting groove that can be detachably fixed to the second connecting block, and the vertical section of the second connecting block is a "T"-shaped structure.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a positioning fixture for screw rod processing, which has the following beneficial effects:

[0017] The positioning fixture for screw processing can adjust the position of the movable positioning part through the positioning seat and positioning mechanism, and the driving motor and the screw transmission device cooperate to adjust the position of the movable positioning part. The telescopic cylinder, the clamping block, the fixed positioning part and the movable positioning part cooperate to quickly clamp and position the screw. The movable positioning part and the telescopic cylinder can be disassembled and maintained by the first fixed block, the mounting block, the second fixed block and the fixed part. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0019] Figure 2 It is a partial structural diagram of the positioning seat and the positioning mechanism in the utility model.

[0020] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle.

[0021] Figure 4 It is a partial structural diagram of the telescopic cylinder and the second fixing rod in the utility model.

[0022] In the figure: 1. positioning seat; 2. fixed positioning member; 3. movable positioning member; 4. driving motor; 5. screw transmission device; 6. connecting member; 7. telescopic cylinder; 8. fixing member; 9. clamping block; 10. positioning block; 11. supporting member; 12. supporting block; 13. reinforcing block; 14. fixing plate; 15. first fixing block; 16. mounting plate; 17. mounting block; 18. reinforcing rod; 19. first fixing rod; 20. second fixing block; 21. limiting block; 22. second fixing rod; 23. first connecting block; 24. second connecting block. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0024] Example 1: Please refer to Figure 1 - Figure 4, a positioning fixture for screw processing in this embodiment includes a positioning seat 1 and a positioning mechanism arranged on the positioning seat 1, and the positioning seat 1 can be installed on the processing table by bolts; wherein the positioning mechanism includes a fixed positioning piece 2 detachably fixed to one side of the upper end of the positioning seat 1, a movable positioning piece 3 movably arranged on one side of the upper end of the positioning seat 1 and a driving assembly that controls the movable positioning piece 3 to reciprocate, and a scale matching the movable positioning piece 3 is provided at the upper end of the positioning seat 1, and a positioning groove for fixing the screw rod is provided on the fixed positioning piece 2 and the movable positioning piece 3, and the movable positioning piece 3 and the fixed positioning piece 2 can adjust the spacing in cooperation, so that screw rods of various sizes can be clamped and fixed; a clamping assembly can be detachably provided on both the fixed positioning piece 2 and the movable positioning piece 3; the driving assembly includes a driving motor 4 detachably mounted on the outer side of the positioning seat 1 and a screw rod transmission device 5 arranged inside the positioning seat 1, and the driving motor 4 and the screw rod transmission device 5 can control the movable positioning piece 3 to move horizontally in cooperation; the movable positioning piece 3 can be fixed to the fixed position 2 and the movable positioning piece 3 ... The bottom end of the dynamic positioning member 3 is provided with a connecting member 6 connected to the screw transmission device 5, and the connecting member 6 can disassemble and separate the screw transmission device 5 and the movable positioning member 3; the clamping assembly includes a symmetrically arranged telescopic cylinder 7, a fixing member 8 detachable from the telescopic cylinder 7, and a clamping block 9 arranged on the inner side of the two groups of fixing members 8; several groups of telescopic cylinders 7 are detachably arranged on the fixed positioning member 2 and the movable positioning member 3, respectively; several groups of clamping blocks 9 are respectively matched with the fixed positioning member 2 and the movable positioning member 3 to clamp and fix the screw rod, start the drive motor 4, drive the screw transmission device 5 to work, the screw transmission device 5 drives the movable positioning member 3 to move on the positioning seat 1 through the connecting member 6, adjust the spacing between the movable positioning member 3 and the fixed positioning member 2, put the screw rod into the positioning groove, start the telescopic cylinder 7, drive the fixing member 8 to move, and the fixing member 8 drives the clamping block 9 to move, so that the two groups of clamping blocks 9 are respectively used in conjunction with the movable positioning member 3 and the fixed positioning member 2 to clamp and position the screw rod.

[0025] The fixed positioning member 2 and the movable positioning member 3 both include a positioning block 10 and a support member 11 vertically arranged on the bottom end surface of the positioning block 10. The screw transmission device 5 controls the movement of the movable positioning member 3 through the connecting member 6. The upper end of the positioning seat 1 is provided with a groove matching the connecting member 6. The screw transmission device 5 controls the connecting member 6 to move in the groove.

[0026] The support member 11 includes a support block 12 with a "convex"-shaped structure and a reinforcement block 13 arranged on the bottom end surface of the support block 12. Fixed plates 14 are detachably installed on both sides of the outer surface of the support block 12. The telescopic cylinder 7 is detachably installed on the fixed plate 14. The screw transmission device 5 drives the connecting member 6 to move in the groove, the connecting member 6 drives the reinforcement block 13 to move, the reinforcement block 13 drives the support block 12 to move, and the support block 12 drives the positioning block 10 to move.

[0027] A first fixing block 15 is vertically arranged at one end of the fixing plate 14, a first fixing groove matching the first fixing block 15 is provided on the supporting block 12, a first fixing rod 19 for fixing the first fixing block 15 is installed on the supporting block 12, a first fixing hole matching the first fixing rod 19 is provided on the first fixing block 15, the first fixing block 15 and the first fixing rod 19 cooperate to disassemble and maintain the fixing plate 14, the first fixing rod 19 is removed from the first fixing hole, the first fixing block 15 is removed from the first fixing groove, and the fixing plate 14 is disassembled and separated.

[0028] A mounting plate 16 is provided at the upper end of the fixed plate 14 on the side away from the supporting block 12, and a mounting block 17 detachably fixed to the mounting plate 16 is vertically provided on the bottom end surface of the telescopic cylinder 7. A mounting groove matching the mounting block 17 is provided on the mounting plate 16. The telescopic cylinder 7 is rotated to drive the mounting block 17 to rotate, and the mounting block 17 is removed from the mounting groove.

[0029] A reinforcing rod 18 vertically connected to the clamping block 9 is provided at one end of the fixing member 8, a second fixing block 20 is vertically provided on the output shaft of the telescopic cylinder 7, two groups of limit blocks 21 are symmetrically provided on the second fixing block 20, a second fixing groove matching the second fixing block 20 is provided on the fixing member 8, a second fixing rod 22 detachably connected to the second fixing block 20 is provided on the fixing member 8, a second fixing hole matching the second fixing rod 22 is provided on the second fixing block 20, and a limit groove connected to the limit block 21 is symmetrically provided at the bottom end of the fixing member 8, the limit groove is communicated with the second fixing groove, the second fixing rod 22 is removed from the second fixing hole, the second fixing block 20 is moved out of the second fixing groove, the limit block 21 is removed from the limit groove, and the fixing member 8 and the telescopic cylinder 7 are disassembled and separated.

[0030] The connecting member 6 includes a first connecting block 23 fixed to the upper end of the screw transmission device 5 and a second connecting block 24 vertically arranged on the bottom end surface of the movable positioning member 3. The upper end of the first connecting block 23 is provided with a connecting groove that can be detachably fixed to the second connecting block 24. The vertical section of the second connecting block 24 is a "T"-shaped structure. The movable positioning member 3 is rotated to drive the second connecting block 24 to rotate, and the second connecting block 24 is removed from the connecting groove.

[0031] When a positioning fixture for screw processing is used, the driving motor 4 is started to drive the screw transmission device 5 to work, the screw transmission device 5 drives the connecting member 6 to move in the groove, the connecting member 6 drives the reinforcement block 13 to move, the reinforcement block 13 drives the support block 12 to move, the support block 12 drives the positioning block 10 to move, thereby driving the mobile positioning member 3 to move on the positioning seat 1, adjusting the distance between the mobile positioning member 3 and the fixed positioning member 2, putting the screw into the positioning groove, starting the telescopic cylinder 7, driving the fixed member 8 to move, the fixed member 8 drives the clamping block 9 to move, so that the two groups of clamping blocks 9 are used in conjunction with the mobile positioning member 3 and the fixed positioning member 2 respectively to clamp and position the screw;

[0032] Remove the first fixing rod 19 from the first fixing hole, remove the first fixing block 15 from the first fixing groove, remove and separate the fixing plate 14, rotate the telescopic cylinder 7 to drive the mounting block 17 to rotate, and remove the mounting block 17 from the mounting groove;

[0033] Remove the second fixing rod 22 from the second fixing hole, move the second fixing block 20 out of the second fixing groove, remove the limiting block 21 from the limiting groove, and disassemble and separate the fixing member 8 and the telescopic cylinder 7;

[0034] The movable positioning member 3 is rotated to drive the second connecting block 24 to rotate, and the second connecting block 24 is removed from the connecting groove, and the movable positioning member 3 is disassembled and separated from the positioning seat 1 .

[0035] This positioning fixture for screw processing can adjust the position of the movable positioning member 3 through the positioning seat 1 and the positioning mechanism, and the driving motor 4 and the screw transmission device 5 cooperate to adjust the position of the movable positioning member 3. The telescopic cylinder 7, the clamping block 9, the fixed positioning member 2 and the movable positioning member 3 can cooperate to quickly clamp and position the screw. The movable positioning member 3 and the telescopic cylinder 7 can be disassembled and maintained through the first fixed block 15, the mounting block 17, the second fixed block 20 and the fixed member 8.

[0036] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A positioning fixture for screw processing, characterized in that: include: A positioning seat (1) and a positioning mechanism arranged on the positioning seat (1); The positioning mechanism comprises a fixed positioning member (2) detachably fixed to one side of the upper end of the positioning seat (1), a movable positioning member (3) movably arranged on one side of the upper end of the positioning seat (1), and a driving component for controlling the movable positioning member (3) to reciprocate; The fixed positioning member (2) and the movable positioning member (3) are both detachably provided with a clamping assembly; The driving assembly comprises a driving motor (4) detachably mounted on the outside of the positioning seat (1) and a screw transmission device (5) arranged inside the positioning seat (1); The bottom end of the movable positioning member (3) is provided with a connecting member (6) connected to the screw transmission device (5); The clamping assembly comprises symmetrically arranged telescopic cylinders (7), fixing members (8) detachable from the telescopic cylinders (7), and clamping blocks (9) arranged inside the two sets of fixing members (8); A plurality of groups of telescopic cylinders (7) are detachably arranged on the fixed positioning member (2) and the movable positioning member (3); A plurality of groups of the clamping blocks (9) cooperate with the fixed positioning member (2) and the movable positioning member (3) respectively to clamp and fix the screw rod.

2. A positioning fixture for screw rod processing as claimed in claim 1, characterized in that: The fixed positioning member (2) and the movable positioning member (3) both comprise a positioning block (10) and a support member (11) vertically arranged on the bottom end surface of the positioning block (10), and the screw transmission device (5) controls the movable positioning member (3) to move via a connecting member (6).

3. A positioning fixture for screw rod processing as claimed in claim 2, characterized in that: The support member (11) comprises a support block (12) in a "convex"-shaped structure and a reinforcement block (13) arranged on the bottom end surface of the support block (12); fixing plates (14) are detachably mounted on both sides of the outer surface of the support block (12); and the telescopic cylinder (7) is detachably mounted on the fixing plate (14).

4. A positioning fixture for screw rod processing as claimed in claim 3, characterized in that: A first fixing block (15) is vertically arranged at one end of the fixing plate (14), a first fixing groove matching the first fixing block (15) is provided on the supporting block (12), and a first fixing rod (19) for fixing the first fixing block (15) is installed on the supporting block (12).

5. A positioning fixture for screw rod processing as claimed in claim 3, characterized in that: A mounting plate (16) is provided at the upper end of the fixing plate (14) on a side away from the supporting block (12), and a mounting block (17) is vertically provided on the bottom end surface of the telescopic cylinder (7) and is detachably fixed to the mounting plate (16).

6. A positioning fixture for screw rod processing as claimed in claim 1, characterized in that: A reinforcing rod (18) vertically connected to the clamping block (9) is arranged at one end of the fixing member (8); a second fixing block (20) is vertically arranged on the output shaft of the telescopic cylinder (7); two groups of limit blocks (21) are symmetrically arranged on the second fixing block (20); a second fixing groove matching the second fixing block (20) is provided on the fixing member (8); and a second fixing rod (22) detachably connected to the second fixing block (20) is provided on the fixing member (8).

7. A positioning fixture for screw rod processing as claimed in claim 1, characterized in that: The connecting member (6) comprises a first connecting block (23) fixed to the upper end of the screw transmission device (5) and a second connecting block (24) vertically arranged on the bottom end surface of the movable positioning member (3), and the upper end of the first connecting block (23) is provided with a connecting groove which is detachably fixed to the second connecting block (24).

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