Clamping tool for machining center hole of ceramic shaft type workpiece

Abstract

The utility model discloses a clamping tool for machining center holes of ceramic shaft type workpieces, and relates to the technical field of workpiece trepanning. The device comprises a placement plate, a clamping assembly is arranged above the placement plate, the clamping assembly comprises placement bases connected to the inner circumferential side wall of a circular ring disc in an annular array mode, the circular ring disc is arranged above the placement plate, and the end of a distance adjusting hydraulic cylinder connected to the side wall of each placement base is connected with a distance adjusting hydraulic rod; a clamping block is arranged on the side of a connecting plate connected with the end of the distance adjusting hydraulic rod, and a connecting rod connected to the side wall of the connecting plate is connected to the outer side wall of the clamping block. A direction adjusting assembly is arranged on the lower surface of the annular disc. The clamping assembly is arranged, ceramic shaft type workpieces with different diameters can be conveniently clamped, the operation steps are simplified, the direction adjusting assembly is arranged, the direction of the fixed ceramic shaft type workpieces can be conveniently adjusted, and the two end faces of the ceramic shaft type workpieces can be conveniently perforated.

Description

Technical Field

[0001] The utility model belongs to the technical field of workpiece hole drilling, in particular to a clamping tool for processing the top hole of a ceramic shaft workpiece. Background Art

[0002] A workpiece refers to a product component in the manufacturing process, also known as a manufactured part, a workpiece or a courseware, etc. There are many types of workpieces, such as wooden workpieces, plastic workpieces, metal workpieces and ceramic workpieces. Ceramic shaft workpieces belong to the category of ceramic workpieces, and the staff needs to operate the drilling equipment to drill holes in the ends of ceramic shaft workpieces. In order to better drill holes in ceramic shaft workpieces, it is necessary to operate the clamping tooling to clamp the ceramic shaft workpiece to prevent the ceramic shaft workpiece from shifting during the drilling process.

[0003] After searching, a patent document with patent announcement number CN216029421U discloses a clamping tool for processing deep holes of shaft parts, which aims to improve the clamping force of the tool on shaft parts. Its technical solution is: a clamping tool for processing deep holes of shaft parts, comprising a base, a fixed seat and a clamping seat are provided on the base, a fixed cavity is provided on the fixed seat, and the clamping seat is driven by a driving module to press the workpiece into the fixed cavity; a clamping part is provided on the clamping seat, and an anti-slip part arranged corresponding to the fixed cavity is provided on the clamping part, which belongs to the field of tooling technology.

[0004] However, it still has the following disadvantages in actual use:

[0005] The above-mentioned clamping tool for machining deep holes of shaft parts has a fixed seat detachably connected to the base, which is convenient for replacing different fixed seats to clamp shaft workpieces of different models, thereby improving the versatility of the above-mentioned clamping tool for machining deep holes of shaft parts. However, when the diameter models of shaft workpieces are large, the frequency of disassembly and assembly of the fixed seat increases, resulting in an increase in the workload of the staff;

[0006] 2. The above-mentioned clamping tool for deep hole machining of shaft parts is provided with a fixed seat and a clamping seat on the base, and a fixed cavity is opened on the fixed seat. The clamping seat is driven by a driving module to press the workpiece inside the fixed cavity, so that the workpiece is stably locked inside the fixed cavity to prevent displacement when drilling holes in the workpiece, so as to better drill holes in the workpiece. However, when both end faces of the shaft workpiece need to be drilled, it is necessary to repeatedly lock and release the shaft workpiece, which brings inconvenience to the work of drilling holes on both end faces of the shaft workpiece.

[0007] To this end, we provide a clamping tool for machining the top hole of ceramic shaft workpieces to solve the above-mentioned problems. Utility Model Content

[0008] The purpose of the utility model is to provide a clamping tool for processing the top hole of a ceramic shaft workpiece. By setting a clamping component, it is convenient for the staff to operate the distance-adjusting hydraulic cylinder to extend or contract the translation hydraulic rod, so that the clamping block can perform top hole processing on ceramic shaft workpieces of different diameters, simplifying the operating steps and reducing the workload. In addition, a direction-adjusting component is set to facilitate the staff to operate the translation hydraulic cylinder and rotate and adjust the direction of the ceramic shaft workpiece clamped by the clamping block. There is no need to repeatedly loosen and clamp the ceramic shaft, which makes it convenient to open holes on the two end faces of the ceramic shaft workpiece, solving the technical problems raised in the background technology of the above-mentioned clamping tool for processing deep holes in shaft parts.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model discloses a clamping tool for machining top holes of ceramic shaft workpieces, comprising a placement plate, a clamping assembly is arranged above the placement plate, the clamping assembly comprises a placement seat connected to the inner circumferential side wall of a circular ring disk in an annular array, the circular ring disk is arranged above the placement plate, the end of a distance-adjusting hydraulic cylinder connected to the side wall of the placement seat is connected to a distance-adjusting hydraulic rod, a clamping block is arranged on the side of a connecting plate connected to the end of the distance-adjusting hydraulic rod, and a connecting rod connected to the side wall of the connecting plate is connected to the outer side wall of the clamping block; a direction-adjusting assembly is arranged on the lower surface of the circular ring disk, the direction-adjusting assembly comprises a circular gear sleeved on the circumferential side wall of a rotating shaft, the rotating shaft is arranged at the lower part of the outer circumferential side of the circular ring disk, the lower end of the rotating shaft is rotatably connected to a bearing interference-connected to the upper surface of the placement plate, the end face of a toothed plate meshingly connected to the side of the circular gear is connected to a translation hydraulic rod, the lower side of the translation hydraulic cylinder connected to the end of the translation hydraulic rod is connected to a cylinder rack, and the lower surface of the cylinder rack is connected to the upper surface of the placement plate.

[0011] The utility model is further configured that sleeves are symmetrically connected to the side walls of the placement seat, and the ends of the movable rods sleeved inside the sleeves are connected to the side walls of the connecting plates.

[0012] The utility model is further configured such that the guide groove opened on the upper surface of the placement plate is in a ring shape, the lower surface of the ear seat symmetrically connected to the outer peripheral side wall of the annular disk is threadedly connected with a screw shaft, and the ball bearing arranged at the lower end of the screw shaft is movably connected to the inside of the guide groove.

[0013] The utility model is further configured that an inner threaded hole groove is provided on the lower surface of the ear plate fixed to the lower portion of the outer peripheral side wall of the annular disk, and a convex rod connected to the inner thread of the inner threaded hole groove is connected to the upper end of the rotating shaft.

[0014] The utility model is further configured that a sliding block in a T shape is connected to the lower surface of the tooth plate, a sliding groove in a T shape is opened on the upper surface of the placement plate, and the sliding block is slidably connected inside the sliding groove.

[0015] The utility model is further configured such that an anti-skid component is provided inside the clamping block, and the anti-skid component includes a screw connected to the outer wall of the anti-skid pad, a through hole is opened on the inner wall of the clamping block, the outer end of the screw passes through the through hole, and a locking nut threadedly connected on the peripheral side wall of the screw is abutted against the outer wall of the clamping block.

[0016] The utility model is further configured that a positioning hole is opened on the inner side wall of the clamping block, a positioning rod is fixedly connected to the outer side wall of the anti-slip pad, and the positioning rod is inserted into the interior of the positioning hole.

[0017] The utility model is further configured that the length of the screw rod is smaller than the length of the connecting rod, and four connecting rods are connected to the side wall of the connecting plate in a rectangular array.

[0018] The utility model has the following beneficial effects:

[0019] The utility model provides a clamping assembly, starts the distance-adjusting hydraulic cylinder, extends the distance-adjusting hydraulic rod, and gradually reduces the spacing between the three clamping blocks to clamp ceramic shaft workpieces with smaller diameters; when the distance-adjusting hydraulic rod contracts, the spacing between the three clamping blocks gradually increases to clamp ceramic shaft workpieces with larger diameters, or releases the clamped ceramic shaft workpieces, thereby facilitating the clamping of ceramic shaft workpieces with different diameters, improving the application range of the clamping tooling for processing the top hole of the ceramic shaft workpiece, simplifying the operating steps, and reducing the workload of the staff.

[0020] The utility model sets a direction adjustment component to start the translation hydraulic cylinder, the translation hydraulic rod extends or contracts, the tooth plate moves, the circular gear rotates, the rotating shaft rotates, the circular ring disk rotates, and the ceramic shaft workpiece clamped by the clamping block rotates. The direction of the fixed ceramic shaft workpiece is adjusted without the need for repeated locking and loosening of the ceramic shaft workpiece, and holes are easily opened on the two end surfaces of the ceramic shaft workpiece.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0023] Figure 1 It is a three-dimensional schematic diagram of a clamping tool for machining the top hole of a ceramic shaft workpiece;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 3 It is an exploded schematic diagram of the clamping block and the anti-slip assembly;

[0026] Figure 4 for Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0027] Figure 5 It is an exploded schematic diagram of the annular disk and the rotating shaft;

[0028] Figure 6 It is a schematic diagram of the exploded view of the mounting plate, slider and tooth plate.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1-placement plate, 101-guide groove, 102-bearing, 103-slideway, 2-clamping assembly, 201-circular ring plate, 201a-ear plate, 201b-ear seat, 201c-internal threaded hole groove, 201d-placement seat, 202-screw shaft, 202a-ball, 203-adjustable hydraulic cylinder, 203a-adjustable hydraulic rod, 204-sleeve, 204a-movable rod, 205-connecting plate, 205a- Connecting rod, 206-clamping block, 206a-through hole, 206b-positioning hole, 3-direction adjustment component, 301-cylinder frame, 301a-translational hydraulic cylinder, 301b-translational hydraulic rod, 302-tooth plate, 302a-slider, 303-rotating shaft, 303a-circular gear, 303b-convex rod, 4-anti-slip component, 401-anti-slip pad, 401a-positioning rod, 402-screw, 402a-locking nut. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0032] See also Figure 1 , Figure 2 and Figure 3The utility model is a clamping tool for processing the top hole of a ceramic shaft workpiece, comprising a placement plate 1, on which a clamping assembly 2 is arranged, the clamping assembly 2 comprises a circular ring disk 201, a screw shaft 202, a ball 202a, a distance-adjusting hydraulic cylinder 203, a distance-adjusting hydraulic rod 203a, a sleeve 204, a movable rod 204a, a connecting plate 205, a connecting rod 205a and a clamping block 206, the distance-adjusting hydraulic cylinder 203 is manipulated to adjust the distance between the three clamping blocks 206, so as to achieve the clamping or loosening of the ceramic shaft workpiece, and facilitate the clamping of ceramic shaft workpieces of different diameters, thereby increasing the scope of application;

[0033] Specifically, the annular disk 201 is arranged above the placement plate 1, and the inside of the annular disk 201 is connected to the placement seat 201d, the distance adjustment hydraulic cylinder 203 and the sleeve 204 are connected to the side wall of the placement seat 201d, the end of the distance adjustment hydraulic cylinder 203 is connected to the distance adjustment hydraulic rod 203a, the inside of the sleeve 204 is sleeved with a movable rod 204a, the ends of the distance adjustment hydraulic rod 203a and the movable rod 204a are both connected to the outer side wall of the connecting plate 205, the inner side wall of the connecting plate 205 is connected to the connecting rod 205a, and the clamping block 206 Located on the inner side of the connecting plate 205, the outer side wall of the clamping block 206 is connected to the end of the connecting rod 205a, a through hole 206a is opened in the middle of the inner side wall of the clamping block 206, a positioning hole 206b is opened on the inner side wall of the clamping block 206, a guide groove 101 is opened on the upper surface of the placement plate 1, an ear seat 201b is connected to the outer peripheral side wall of the annular disk 201, and a screw shaft 202 is threadedly connected to the lower surface of the ear seat 201b, and a ball 202a is arranged at the lower end of the screw shaft 202, and the ball 202a is movably connected to the inside of the guide groove 101;

[0034] Further, three placement seats 201d are arranged in an annular array, two sleeves 204 are symmetrically arranged on the side wall of the placement seat 201d, four connecting rods 205a are connected to the outer side wall of the clamping block 206 in a rectangular array, two groups of positioning holes 206b are opened, and each group of positioning holes 206b is opened at equal intervals, the guide groove 101 is ring-shaped, and the two ear seats 201b are symmetrically arranged;

[0035] The operation process of this embodiment is as follows: the staff inserts the ceramic shaft workpiece into the inside of the circular disk 201 in a parallel state, starts the distance adjusting hydraulic cylinder 203, and when the distance adjusting hydraulic rod 203a is extended, the movable rod 204a gradually moves out of the inside of the sleeve 204, the three connecting plates 205 approach the ceramic shaft workpiece, the connecting rod 205a approaches the ceramic shaft workpiece, and the clamping block 206 approaches the ceramic shaft workpiece until the three clamping blocks 206 clamp the ceramic shaft workpiece; conversely, when the distance adjusting hydraulic rod 203a contracts, a ceramic shaft workpiece with a larger diameter is clamped, or the clamped ceramic shaft workpiece is released. Example 2

[0036] See also Figure 1 , Figure 4 , Figure 5 and Figure 6 On the basis of the specific embodiment 1, a direction adjustment component 3 is provided, which includes a cylinder frame 301, a translation hydraulic cylinder 301a, a translation hydraulic rod 301b, a tooth plate 302, a slider 302a, a rotating shaft 303, a circular gear 303a and a protruding rod 303b. The translation hydraulic cylinder 301a is controlled, the translation hydraulic rod 301b is extended or contracted, the tooth plate 302 moves, and the circular gear 303a rotates. The rotation adjusts the direction of the clamped ceramic shaft workpiece, so as to facilitate drilling of both end surfaces of the ceramic shaft workpiece;

[0037] Specifically, the cylinder frame 301 is connected to the upper surface of the placement plate 1, the translation hydraulic cylinder 301a is connected to the upper surface of the cylinder frame 301, and the end of the translation hydraulic cylinder 301a is connected to the translation hydraulic rod 301b, the tooth plate 302 is connected to the end of the translation hydraulic rod 301b, and the lower surface of the tooth plate 302 is connected to the slider 302a, the placement plate 1 is provided with a slide groove 103, and the placement plate 1 is interference-connected with a bearing 102, and the slider 302a is slidably connected to the slide groove 103. Inside the groove 103, the lower end of the rotating shaft 303 is rotatably connected to the bearing 102, and a circular gear 303a is sleeved on the peripheral side wall of the rotating shaft 303, and the circular gear 303a is meshed and connected with the toothed plate 302. A convex rod 303b is fixedly connected to the upper end surface of the rotating shaft 303, and an ear plate 201a is fixedly connected to the middle of the outer peripheral side wall of the annular disk 201. An internal threaded hole groove 201c is opened on the lower surface of the ear plate 201a, and the convex rod 303b is threadedly connected to the inside of the internal threaded hole groove 201c;

[0038] Further, the cylinder frame 301 is T-shaped, the slider 302a is T-shaped, and the slide groove 103 is T-shaped;

[0039] The operation process of this embodiment is: the staff starts the translation hydraulic cylinder 301a, the translation hydraulic rod 301b extends or contracts, the slider 302a slides inside the slide groove 103, the tooth plate 302 moves, the circular gear 303a rotates, the rotating shaft 303 rotates, the ear plate 201a moves in an arc with the rotating shaft 303 as a fixed point, the annular disk 201 moves in an arc, the ball 202a moves inside the guide groove 101, and the ceramic shaft workpiece clamped by the clamping block 206 rotates. Example 3

[0040] See also Figure 1 and Figure 3On the basis of the specific embodiment 1 and the specific embodiment 2, an anti-skid component 4 is provided, and the anti-skid component 4 includes an anti-skid pad 401, a positioning rod 401a, a screw 402 and a locking nut 402a. The setting of the anti-skid pad 401 is conducive to increasing the stability of the ceramic shaft workpiece after clamping, and better controlling the drilling component to drill holes at both ends of the ceramic shaft workpiece. By rotating the locking nut 402a, the anti-skid pad 401 can be disassembled and assembled, which is convenient for replacing the anti-skid component 4;

[0041] Specifically, the anti-skid pad 401 is disposed against the inner wall of the clamping block 206, and a screw 402 is connected to the outer wall of the anti-skid pad 401, the outer end of the screw 402 passes through the through hole 206a, and a locking nut 402a is threadedly connected to the peripheral side wall of the screw 402, the locking nut 402a is disposed against the outer wall of the clamping block 206, and a positioning rod 401a is connected to the outer wall of the anti-skid pad 401, and the positioning rod 401a is inserted into the interior of the positioning hole 206b;

[0042] Further, the length of the screw rod 402 is smaller than the length of the connecting rod 205a, the length of the positioning rod 401a is equal to the inner depth of the positioning hole 206b, and the number of the positioning rods 401a is equal to the number of the positioning holes 206b;

[0043] The operating process of this embodiment is: the staff unscrews the locking nut 402a clockwise, applies pulling force to the anti-slip pad 401, the anti-slip pad 401 gradually moves away from the clamping block 206, the positioning rod 401a moves out of the interior of the positioning hole 206b, and the screw 402 moves out of the interior of the through hole 206a, completing the separation between the anti-slip pad 401 and the clamping block 206; conversely, the anti-slip pad 401 is locked inside the clamping block 206.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A clamping tool for machining a top hole of a ceramic shaft workpiece, comprising a mounting plate (1), characterized in that: A clamping assembly (2) is arranged above the placement plate (1), the clamping assembly (2) comprising a placement seat (201d) connected to the inner peripheral side wall of the annular disk (201) in an annular array, the annular disk (201) being arranged above the placement plate (1), the end of the distance-adjusting hydraulic cylinder (203) connected to the side wall of the placement seat (201d) being connected to a distance-adjusting hydraulic rod (203a), a clamping block (206) being arranged on the side of a connecting plate (205) connected to the end of the distance-adjusting hydraulic rod (203a), and a connecting rod (205a) connected to the side wall of the connecting plate (205) being connected to the outer side wall of the clamping block (206); The lower surface of the annular disk (201) is provided with an adjustment component (3), the adjustment component (3) comprising a circular gear (303a) sleeved on the peripheral side wall of a rotating shaft (303), the rotating shaft (303) being provided at the lower portion of the outer peripheral side of the annular disk (201), the lower end of the rotating shaft (303) being rotationally connected to a bearing (102) which is interference-connected to the upper surface of the placement plate (1), the end surface of a toothed plate (302) meshingly connected to the side of the circular gear (303a) being connected to a translation hydraulic rod (301b), the lower side of a translation hydraulic cylinder (301a) connected to the end of the translation hydraulic rod (301b) being connected to a cylinder frame (301), the lower surface of the cylinder frame (301) being connected to the upper surface of the placement plate (1).

2. The clamping tool for machining the top hole of a ceramic shaft workpiece according to claim 1 is characterized by: A sleeve (204) is symmetrically connected to the side wall of the placement seat (201d), and the end of a movable rod (204a) sleeved inside the sleeve (204) is connected to the side wall of the connecting plate (205).

3. The clamping tool for machining the top hole of a ceramic shaft workpiece according to claim 1 is characterized by: The guide groove (101) formed on the upper surface of the placement plate (1) is in a ring shape, and the lower surface of the ear seat (201b) symmetrically connected to the outer peripheral side wall of the annular disk (201) is threadedly connected to a screw shaft (202), and a ball (202a) provided at the lower end of the screw shaft (202) is movably connected to the inside of the guide groove (101).

4. The clamping tool for machining the top hole of a ceramic shaft workpiece according to claim 3 is characterized by: An inner threaded hole (201c) is provided on the lower surface of an ear plate (201a) fixedly connected to the lower portion of the outer peripheral side wall of the annular disk (201), and a protruding rod (303b) connected to the inner thread of the inner threaded hole (201c) is connected to the upper end of the rotating shaft (303).

5. The clamping tool for machining the top hole of a ceramic shaft workpiece according to claim 1, characterized in that: The lower surface of the tooth plate (302) is connected to a T-shaped sliding block (302a), and the upper surface of the placement plate (1) is provided with a T-shaped sliding groove (103), and the sliding block (302a) is slidably connected inside the sliding groove (103).

6. The clamping tool for machining the top hole of a ceramic shaft workpiece according to claim 1, characterized in that: An anti-skid component (4) is arranged inside the clamping block (206), and the anti-skid component (4) includes a screw rod (402) connected to the outer wall of the anti-skid pad (401), a through hole (206a) is opened on the inner wall of the clamping block (206), the outer end of the screw rod (402) passes through the through hole (206a), and a locking nut (402a) threadedly connected on the peripheral side wall of the screw rod (402) is abutted against the outer wall of the clamping block (206).

7. The clamping tool for machining the top hole of a ceramic shaft workpiece according to claim 6, characterized in that: A positioning hole (206b) is provided on the inner side wall of the clamping block (206), a positioning rod (401a) is fixedly connected to the outer side wall of the anti-slip pad (401), and the positioning rod (401a) is inserted into the interior of the positioning hole (206b).

8. The clamping tool for machining the top hole of a ceramic shaft workpiece according to claim 6, characterized in that: The length of the screw rod (402) is smaller than the length of the connecting rod (205a), and the four connecting rods (205a) are connected to the side wall of the connecting plate (205) in a rectangular array.

Images