Batter post backward pulling type chuck

Abstract

The utility model discloses an inclined column backward pulling type chuck which comprises a chuck body, and a rear cover is arranged at the bottom of the chuck body. The pull rod shafts are uniformly arranged in the sliding holes; the clamping jaw is arranged at the end part of the pull rod shaft, and the clamping jaw is detachably connected with the pull rod shaft through a positioning assembly structure; the first sliding block is arranged on one side in the sliding hole, and one end of the first sliding block is arranged in the first sliding groove in a sliding mode; the second sliding block is arranged on the other side in the sliding hole, and one end of the first sliding block is arranged in the second sliding groove in a sliding mode; the first sliding groove and the second sliding groove are symmetrically formed in the outer surface of the pull rod shaft. According to the multi-stage guide device, multi-stage guide can be conducted on the pull rod shaft, meanwhile, the guide performance and smoothness of the pull rod shaft in the moving process are guaranteed, abrasion of the pull rod shaft is reduced, locking and fixing of the clamping jaw and the pull rod shaft are facilitated, and meanwhile the clamping jaw is convenient to disassemble and replace.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical chuck technical field, concretely relates to inclined column rear pull type chuck. BACKGROUND

[0002] Inclined column rear pull chuck, commonly known as rear pull chuck, can perfectly solve the problem of conventional chuck clamping workpiece arch, clamping workpiece pulls back to make workpiece completely adhere to the chuck end face, and is also widely applied in machining center punching tapping and other processes.

[0003] The guide structure of the current inclined column rear pull chuck is simple when the pull rod shaft moves, the pull rod shaft cannot be guided to slide in multiple stages, is easy to cause abrasion, at the same time, the pull rod shaft has no stroke buffer structure after contraction, is easy to cause the pull rod shaft to impact the back cover, and the clamping jaw cannot be quickly positioned and assembled, and the assembly or replacement operation is inconvenient, therefore, the inclined column rear pull type chuck is provided. UTILITY MODEL CONTENTS

[0004] The utility model discloses a inclined column rear pull type chuck, to solve the problem that the guide structure of the current inclined column rear pull chuck is simple when the pull rod shaft moves, the pull rod shaft cannot be guided to slide in multiple stages, is easy to cause abrasion, at the same time, the pull rod shaft has no stroke buffer structure after contraction, is easy to cause the pull rod shaft to impact the back cover, and the clamping jaw cannot be quickly positioned and assembled, and the assembly or replacement operation is inconvenient.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: inclined column rear pull type chuck, including chuck body, the bottom of chuck body is provided with back cover;

[0006] Pull rod shaft, the pull rod shaft is evenly arranged in the sliding hole, and the sliding hole is arranged in the chuck body;

[0007] Clamping jaw, the clamping jaw is arranged at the end of pull rod shaft, and the clamping jaw is detachably connected with pull rod shaft through positioning and assembling structure;

[0008] First sliding block, the first sliding block is arranged at one side in the sliding hole, and one end of first sliding block is slidably arranged in the first sliding slot;

[0009] Second sliding block, the second sliding block is arranged at the other side in the sliding hole, and one end of first sliding block is slidably arranged in the second sliding slot;

[0010] The first sliding slot and the second sliding slot are symmetrically arranged on the outer surface of the pull rod shaft.

[0011] Among them, the back cover is also provided with buffer structure for limiting the pull rod shaft.

[0012] Preferably, the first slider one side surface is provided with first rolling balls, the second slider one side surface is provided with second rolling balls, the first rolling balls are slidably arranged in the first sliding groove, and the second rolling balls are slidably arranged in the second sliding groove, so that the smoothness of the pull rod shaft is improved, and the wear of the pull rod shaft is reduced.

[0013] Preferably, the buffer structure comprises a limiting pad, the limiting pad is arranged in a groove, the groove is arranged on the rear cover, and the groove is a chute structure, so that the position of the pull rod shaft when being retracted can be limited.

[0014] Preferably, a spring is arranged on one side surface in the groove, one end of the spring is connected with the limiting pad, the spring can buffer the pressure of the pull rod shaft, and the rear cover expansion of the pull rod shaft is avoided.

[0015] Preferably, the positioning assembly structure comprises a clamping jaw and a clamping block, the clamping block is arranged on the clamping jaw, the clamping block is connected with a clamping groove, and the clamping groove is arranged on the pull rod shaft, so that the clamping jaw and the pull rod shaft can be positioned and installed.

[0016] Preferably, an engaging rod is arranged on one side surface in the clamping groove, the engaging rod is clamped with an engaging groove, and the engaging groove is arranged on one side surface of the clamping block, so that the clamping block can be positioned.

[0017] Preferably, a locking bolt is arranged on the clamping jaw, the locking bolt is screwed through a mounting hole and is connected with a threaded hole, the mounting hole is arranged on the engaging rod, and the threaded hole is arranged in the bottom of the clamping groove, so that the clamping jaw, the positioning block, the engaging rod and the pull rod shaft can be synchronously locked, the fastening firmness of the clamping jaw is improved, and the clamping jaw is prevented from loosening.

[0018] Preferably, a driving shaft is arranged in the middle of the chuck body, an adjusting pin is arranged on the driving shaft, one end of the adjusting pin is slidably arranged in an adjusting groove, and the adjusting groove is arranged on the pull rod shaft, so that the driving shaft is moved to control the movement of the pull rod shaft in the sliding hole, and the workpiece clamping or loosening operation is completed.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] (1) The utility model can guide the pull rod shaft in multiple stages, ensures the guiding property and the smoothness of the pull rod shaft when moving, reduces the wear of the pull rod shaft, and buffers the pull rod shaft.

[0021] (2) The utility model can quickly assemble and position the clamping jaw and the pull rod shaft, facilitates the locking and fixing of the clamping jaw and the pull rod shaft, and facilitates the disassembly and replacement of the clamping jaw. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1The utility model discloses a structure schematic diagram of the utility model;

[0023] Figure 2 The utility model discloses a structure schematic diagram of the utility model's main view section;

[0024] Figure 3 For Figure 2 The utility model discloses a structure schematic diagram of the utility model's main view section;

[0025] Figure 4 The utility model discloses a structure schematic diagram of the utility model's main view section;

[0026] Figure 5 For Figure 4 The utility model discloses a structure schematic diagram of the utility model's main view section;

[0027] Figure 6 The utility model discloses a structure schematic diagram of the utility model's main view section;

[0028] In the drawing: 1, chuck body;2, back cover;3, pull rod shaft;4, clamping jaw;5, drive shaft;6, sliding hole;7, adjusting pin;8, adjusting groove;11, limit pad;12, spring;13, first sliding slot;14, first ball;15, first sliding block;16, second ball;17, second sliding block;18, second sliding slot;41, clamping block;42, locking bolt;43, link rod;44, mounting hole;45, clamping groove;46, threaded hole;47, magnet block. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0030] Please refer to Figures 1-3 The utility model provides a technical scheme: inclined column rear pull type chuck, including chuck body 1, chuck body 1 bottom sets up back cover 2;

[0031] Pull rod shaft 3 evenly sets up in sliding hole 6, and sliding hole 6 sets up in chuck body 1;

[0032] First sliding block 15 sets up in one side in sliding hole 6, and first sliding block 15 one end sliding sets up in first sliding slot 13;Second sliding block 17 sets up in the other side in sliding hole 6, and first sliding block 15 one end sliding sets up in second sliding slot 18;First sliding slot 13 with second sliding slot 18 symmetrically sets up on the outer surface of pull rod shaft 3.

[0033] When the driving shaft 5 moves, the pull rod shaft 3 can be driven to move in the sliding hole 6. When the pull rod shaft 3 moves, the first sliding groove 13 and the second sliding groove 18 move along the first sliding block 15 and the second sliding block 17 respectively. The first sliding block 15 and the second sliding block 17 can guide the movement of the pull rod shaft 3 in multiple stages, thereby improving the guiding property of the pull rod shaft 3.

[0034] Further, the first sliding block 15 is provided with the first ball 14 on one side surface, and the second sliding block 17 is provided with the second ball 16 on one side surface. The first ball 14 is slidably arranged in the first sliding groove 13, and the second ball 16 is slidably arranged in the second sliding groove 18. When the pull rod shaft 3 moves, the first ball 14 and the second ball 16 are driven to rotate under the action of friction, thereby converting the sliding connection into rolling connection, improving the smoothness of the pull rod shaft 3 when moving, and reducing the wear of the pull rod shaft 3.

[0035] As a specific embodiment of the present application, please refer to Figure 2 The rear cover 2 is further provided with a buffer structure for limiting the pull rod shaft 3. The buffer structure comprises a limiting pad 11 arranged in a groove provided on the rear cover 2. The groove is a slanted groove structure, which can limit the position of the pull rod shaft 3 when it is retracted. A spring 12 is arranged on one side surface of the groove. One end of the spring 12 is connected with the limiting pad 11. The spring 12 can buffer the pressure of the pull rod shaft 3, thereby avoiding the expansion of the rear cover 2 caused by the pull rod shaft 3.

[0036] When the driving shaft 5 drives the pull rod shaft 3 to move back, the pull rod is in contact with the limiting pad 11. The limiting pad 11 moves in the groove and compresses the spring 12. The spring 12 absorbs the pressure of the pull rod shaft 3, thereby improving the buffering and protection performance.

[0037] As a specific embodiment of the present application, please refer to Figures 4-6 The clamping jaw 4 is arranged at the end of the pull rod shaft 3 and is detachably connected with the pull rod shaft 3 through a positioning assembly structure. The positioning assembly structure comprises a clamping block 41 arranged on the clamping jaw 4 and connected with a clamping groove 45 arranged on the pull rod shaft 3. The clamping groove 45 is arranged on the clamping jaw 4. The clamping block 41 is arranged on one side surface of the clamping groove 45 and is connected with an engaging rod 43 arranged on one side surface of the clamping block 41. The engaging rod 43 is connected with an engaging groove. The clamping jaw 4 is provided with a locking bolt 42. The locking bolt 42 is screwed through a mounting hole 44 arranged on the engaging rod 43 and is connected with a threaded hole 46 arranged at the bottom of the clamping groove 45. The clamping jaw 4, the engaging rod 43 and the pull rod shaft 3 can be simultaneously locked, thereby improving the firmness of the clamping jaw 4 and avoiding loosening.

[0038] The clamping block 41 is clamped into the clamping groove 45, the connecting rod 43 is inserted into the connecting groove, the clamping block 41 is positioned in the clamping groove 45, the clamping jaw 4 is quickly positioned with the pull rod shaft 3, then the locking bolt 42 is passed through the clamping block 41 and the mounting hole 44 and connected with the threaded hole 46, the locking bolt 42 is tightened, the clamping jaw 4 is quickly fixed with the pull rod shaft 3, when the clamping jaw 4 needs to be disassembled or replaced, the locking bolt 42 is loosened, the locking bolt 42 is separated from the clamping jaw 4, and the clamping jaw 4 can be replaced.

[0039] Further, the magnet block 47 is embedded on one side of the connecting groove, the connecting rod 43 can be adsorbed and fixed through the adsorption force of the magnet block 47, the positioning stability of the clamping block 41 is improved, and the positioning and installation of the locking bolt 42 are facilitated.

[0040] Specifically, the middle part of the chuck body 1 is provided with the driving shaft 5, the adjusting pin 7 is arranged on the driving shaft 5, one end of the adjusting pin 7 is slidably arranged in the adjusting groove 8, the adjusting groove 8 is arranged on the pull rod shaft 3, the driving shaft 5 can be connected with an external hydraulic cylinder device, the driving shaft 5 drives the adjusting pin 7 to move in the adjusting groove 8 through the movement of the driving shaft 5, then the pull rod shaft 3 is controlled to move in the sliding hole 6, and the workpiece clamping or loosening operation is completed.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tilting column pull-back chuck, characterized in that: Includes a chuck body (1), and a rear cover (2) is provided at the bottom of the chuck body (1); A pull rod shaft (3) is evenly arranged in a sliding hole (6), which is located inside the chuck body (1). The gripper (4) is located at the end of the pull rod shaft (3) and is detachably connected to the pull rod shaft (3) through a positioning assembly structure. The first slider (15) is disposed on one side inside the sliding hole (6), and one end of the first slider (15) is slidably disposed in the first sliding groove (13); The second slider (17) is disposed on the other side inside the sliding hole (6), and one end of the first slider (15) is slidably disposed in the second sliding groove (18); The first groove (13) and the second groove (18) are symmetrically arranged on the outer surface of the tie rod shaft (3); The rear cover (2) is also provided with a buffer structure for limiting the pull rod shaft (3).

2. The inclined column pull-back chuck according to claim 1, characterized in that: The first slider (15) has a first ball (14) rotatably disposed on one side surface, and the second slider (17) has a second ball (16) disposed on one side surface. The first ball (14) is slidably disposed in the first groove (13), and the second ball (16) is slidably disposed in the second groove (18).

3. The inclined column pull-back chuck according to claim 1, characterized in that: The buffer structure includes a limiting pad (11), which is disposed in a groove. The groove is disposed on the back cover (2) and is a slanted groove structure.

4. The inclined column pull-back chuck according to claim 3, characterized in that: A spring (12) is provided on one side surface of the groove, and one end of the spring (12) is connected to the limiting pad (11).

5. The inclined column pull-back chuck according to claim 1, characterized in that: The positioning assembly structure snap-fit ​​block (41) is disposed on the gripper (4) and connected to the snap-fit ​​groove (45), which is disposed on the pull rod shaft (3).

6. The inclined column pull-back chuck according to claim 5, characterized in that: A connecting rod (43) is provided on one side surface of the snap-fit ​​groove (45), and the connecting rod (43) is snapped into the connecting groove. The connecting groove is provided on one side surface of the snap-fit ​​block (41).

7. The inclined column pull-back chuck according to claim 5 or 6, characterized in that: A locking bolt (42) is provided on the gripper (4). The locking bolt (42) passes through the mounting hole (44) and is connected to the threaded hole (46). The mounting hole (44) is provided on the connecting rod (43), and the threaded hole (46) is provided at the bottom of the snap-fit ​​groove (45).

8. The inclined column pull-back chuck according to claim 1, characterized in that: A drive shaft (5) is provided in the middle of the chuck body (1), and an adjustment pin (7) is provided on the drive shaft (5). One end of the adjustment pin (7) is slidably disposed in the adjustment groove (8), and the adjustment groove (8) is disposed on the pull rod shaft (3).

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