Pneumatic sprue polishing tool for annular clamping block type workpieces

Abstract

The utility model discloses a pneumatic sprue polishing tool for annular clamping block type workpieces, which can automatically position the workpieces, is high in positioning safety, high in pressing and positioning accuracy, can be self-adaptive to a belt sander to polish the workpieces, and is higher in machining efficiency. The clamping device comprises a supporting frame and is characterized by further comprising an axial pressing structure of the annular clamping block type workpiece, a pressing air cylinder of the axial pressing structure is installed on a clamp supporting block of a positioning and pressing mechanism, and the positioning and pressing mechanism is installed on the supporting frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to annular clamping block class workpiece polishing fixture technical field, concretely relates to a kind of annular clamping block class workpiece pneumatic sprue polishing tooling. BACKGROUND

[0002] Certain annular clamping block class workpiece is applied to engineering instrument, and workpiece blank stage has casting sprue at cambered surface, and the workpiece removes sprue with higher cost using machining, usually using manual polishing sprue mode, but manual polishing, operator holds inconveniently, and safety is low, and holding positioning polishing cannot accurately grind cambered surface, and precision is low, and manual polishing is time-consuming and laborious, and processing efficiency is also lower. UTILITY MODEL CONTENTS

[0003] In view of the shortcomings that manual polishing safety is low, workpiece precision is low when manually polishing, and workpiece processing efficiency is low, the utility model provides a kind of annular clamping block class workpiece pneumatic sprue polishing tooling, which can automatically position workpiece, and safety is high, and positioning precision is high when being pressed tightly, and can self-adapt abrasive belt machine to polish workpiece, and processing efficiency is higher.

[0004] The utility model provides the following technical scheme:

[0005] It includes support frame, and its characterized in that: it further includes the axial compression structure of annular clamping block class workpiece, the compression cylinder of axial compression structure is installed in the clamping support block of positioning compression mechanism, and the positioning compression mechanism is installed in the support frame.

[0006] It is further characterized in that:

[0007] The positioning compression mechanism includes positioning table, the head of positioning table is provided with the cylindrical boss compatible with the bottom of workpiece, the rotating bearing is arranged between positioning table and gear and is installed on upper bottom plate, positioning table and gear are coaxially installed, gear and rack are meshed and connected, rack is installed on rack back plate, rack back plate is installed in the limiting groove of guide seat, the end of rack and the pneumatic rod on sidewall cylinder shaft are connected;

[0008] The axial compression structure includes clamping support block, the clamping cylinder is installed in clamping support block by outer connecting support, the piston rod of clamping cylinder is rotationally connected with hinge connecting frame, the hinge connecting frame is rotationally installed in inner connecting support, the support pressure head on hinge connecting frame is pressed on clamping block, and the inner connecting arm of hinge connecting frame and clamping block are rotationally connected, the tail of clamping block extends into the head of inner connecting support and is rotationally connected with inner connecting support, the fixed block is installed on clamping block, the compression head is installed on fixed block, the compression head is located above positioning table, on the side of positioning table, the support positioning pin is installed on clamping support block, and the end of support positioning pin is aligned with the periphery of positioning table.

[0009] The rotation limiting pin is fixedly connected through the connecting rod and the positioning table penetrating the clamp supporting block.

[0010] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0011] The positioning table in the positioning and pressing mechanism supports and limits the workpiece from inside, wherein the end face of the supporting and positioning pin extending from the clamp supporting block limits the tail of the workpiece, and the rotation limiting pin limits the rotation of the positioning table so that the rotation range of the positioning table is limited in the limiting arc groove, ensuring that the workpiece can be appropriately rotated and polished, and greatly improving the processing efficiency.

[0012] The pressing head in the axial pressing structure accurately presses and positions the workpiece, and the piston rod of the clamp cylinder can quickly realize the rotation of the clamping block, so that the clamping and releasing of the workpiece by the pressing head can be quickly realized, the workpiece placed on the positioning table will be accurately positioned and pressed, the positioning accuracy of the workpiece is improved, and the efficiency of polishing the workpiece is indirectly improved.

[0013] In the positioning and pressing mechanism, the sidewall cylinder piston rod is extended to drive the rack to make reciprocating linear motion on the guide seat, the rack engages with the gear, and the positioning table makes reciprocating rotary motion, further improving the processing efficiency of polishing the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure working schematic view of the utility model;

[0015] Figure 2 It is a structure schematic view of the utility model;

[0016] Figure 3 It is a structure top view of the utility model;

[0017] Figure 4 It is a positioning and rotating structure, a positioning and pressing structure and a reciprocating transmission structure schematic view of the utility model;

[0018] Figure 5 It is a positioning and pressing structure schematic view of the utility model;

[0019] Figure 6 It is an outer connecting support, an inner connecting support and a hinge connecting frame structure schematic view of the utility model;

[0020] Figure 7 It is an outer connecting support and an inner connecting support structure schematic view of the utility model;

[0021] Figure 8This is a schematic diagram of the hinge connection frame structure of this utility model;

[0022] Figure 9 This is an exploded view of the positioning and rotating structure of this utility model;

[0023] Figure 10 This is a schematic diagram of the guide seat structure of this utility model;

[0024] Figure 11 This is a schematic diagram of the reciprocating transmission structure of this utility model;

[0025] Figure 12 This is a rear view of the workpiece structure of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Upper base plate; 2. Lower base plate; 3. Left upright plate; 4. Right upright plate; 5. Guide seat; 6. Rack back plate; 7. Rack; 8. Gear; 9. Side wall cylinder; 10. Pneumatic rod; 11. Clamp cylinder; 12. Connecting rod; 13. Rotation limit pin; 14. Clamp support block; 15. Fixing block; 16. Pressing head; 17. Positioning table; 18. External connecting bracket; 19. Hinge connecting frame; 20. Clamping block; 21. Support positioning pin; 22. Rotary bearing; 23. Limiting arc groove; 24. Clamping pressure head; 25. Internal connecting bracket. Detailed Implementation

[0028] This utility model provides, for example Figures 1-12 The pneumatic gate grinding fixture for annular clamping block type workpieces shown includes a support frame. The fixture is characterized in that it also includes an axial clamping structure for annular clamping block type workpieces. The clamping cylinder of the axial clamping structure is installed on the clamping support block 14 of the positioning and clamping mechanism. The positioning and clamping mechanism is installed on the support frame. A limiting arc groove 23 is opened in the middle part of the surface of the upper bottom plate 1 of the support frame.

[0029] See Figure 4 The positioning and clamping mechanism includes a positioning table 17. The head of the positioning table 17 is a cylindrical boss that is adapted to the bottom of the workpiece. A rotary bearing 22 is provided between the positioning table 17 and the gear 8 and is mounted on the upper base plate 1. The positioning table 17 and the gear 8 are coaxially mounted. The gear 8 and the rack 7 are meshed and connected. The rack 8 is mounted on the rack back plate 6. A guide seat 5 is provided between the left vertical plate 3 and the right vertical plate 4. The rack back plate 6 is mounted in the limiting groove of the guide seat 5. The end of the rack 8 is axially connected to the pneumatic rod 10 on the side wall cylinder 9.

[0030] See Figure 4 , Figure 5 , Figure 6 , Figure 7, axial compression structure includes clamp support block 14, clamp support block 14 is installed by outer connecting support 18 clamp cylinder 11, the cylinder head of clamp cylinder 11 is inserted between the two support arms of outer connecting support 18 and can be rotatably connected with the support arm of outer connecting support 18, the piston rod of clamp cylinder 11 is rotatably connected with hinge connecting frame 19, the bottom surface of outer connecting support 18 is installed with inner connecting support 25, hinge connecting frame 19 is rotatably installed on inner connecting support 25, the clamping pressure head 24 on hinge connecting frame 19 is pressed on clamping block 20 and the inner connecting arm of hinge connecting frame 19 and clamping block 20 are rotatably connected, the tail of clamping block 20 is inserted into the head of inner connecting support 25 and is rotatably connected with inner connecting support 25, fixed block 15 is installed on clamping block 20, compression head 16 is installed on fixed block 15, compression head 16 is located above positioning table 17, support positioning pin 21 is installed on clamp support block 14 on the side of positioning table 17, the end of support positioning pin 21 is aligned with the periphery of positioning table 17;

[0031] see Figure 9 , the limiting arc groove 23 of one side of clamp support block 14 is provided with rotary limiting pin 13, and rotary limiting pin 13 is fixedly connected with positioning table 17 through connecting rod 12 penetrating clamp support block 14.

[0032] The working principle of the utility model is as follows:

[0033] Referring to the description accompanying drawings Figures 1-12 When the utility model is used, first, the workpiece is placed on positioning table 17, the end surface of support positioning pin 21 extends out and limits the tail of the workpiece, then clamp cylinder 11 is started, compression head 16 will compress and fix the workpiece, then side wall cylinder 9 is started, side wall cylinder 9 moves through pneumatic rod 10 to drive rack 7 to make linear reciprocating motion, rack 7 and gear 8 are engaged, then gear 8 rotates to drive positioning table 17 to rotate reciprocatingly, then cooperating with the abrasive belt machine, the workpiece arc surface can be ground, not only the positioning accuracy of the workpiece is improved, the safety is higher, and the machining efficiency of the ground workpiece is improved.

Claims

1. A ring-shaped clamp block type workpiece pneumatic nozzle polishing tooling device, comprising a support frame, characterized in that: It also includes the axial compression structure of the annular clamp block type workpiece, the compression cylinder of the axial compression structure is installed on the clamp support block of the positioning and compression mechanism, and the positioning and compression mechanism is installed on the support frame.

2. The polishing tool for a ring-shaped clamp block workpiece according to claim 1, characterized in that: The positioning and compression mechanism comprises a positioning table, a head of the positioning table is provided with a cylindrical boss matched with the bottom of the workpiece, a rotating bearing is installed between the positioning table and a gear and mounted on the upper bottom plate, the positioning table and the gear are coaxially installed, the gear is in meshing connection with a rack, the rack is installed on a rack back plate, the rack back plate is installed in a limiting groove of a guide seat, and the end of the rack is in shaft connection with a pneumatic rod on a side wall cylinder.

3. The polishing tool for a ring-shaped clamp block workpiece according to claim 2, characterized in that: The axial compression structure comprises a clamp support block, the clamp support block is installed with a clamp cylinder through an outer connecting support, a piston rod of the clamp cylinder is rotationally connected with a hinge connecting frame, the hinge connecting frame is rotationally installed on an inner connecting support, a support pressing head on the hinge connecting frame is pressed on a clamping block, an inner connecting arm of the hinge connecting frame and the clamping block are rotationally connected, a tail of the clamping block extends into a head of the inner connecting support and is rotationally connected with the inner connecting support, a fixed block is installed on the clamping block, a compression head is installed on the fixed block, the compression head is located above the positioning table, the compression head is located on the side of the positioning table, a support positioning pin is installed on the clamp support block, and an end of the support positioning pin is aligned with the periphery of the positioning table.

4. The polishing tool for a ring-shaped clamp block workpiece according to claim 3, characterized in that: A rotating limiting pin is arranged in a limiting arc groove on one side of the clamp support block, and the rotating limiting pin is fixedly connected with the positioning table through a connecting rod penetrating through the clamp support block.

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